{"id":21206,"date":"2024-07-17T10:58:58","date_gmt":"2024-07-17T02:58:58","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=21206"},"modified":"2024-07-17T10:58:58","modified_gmt":"2024-07-17T02:58:58","slug":"%e6%88%91%e7%94%a8%e8%bf%9911%e6%8b%9b%ef%bc%8c%e8%ae%a9%e6%8e%a5%e5%8f%a3%e6%80%a7%e8%83%bd%e6%8f%90%e5%8d%87%e4%ba%86100%e5%80%8d","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2024\/07\/17\/21206\/","title":{"rendered":"\u6211\u7528\u8fd911\u62db\uff0c\u8ba9\u63a5\u53e3\u6027\u80fd\u63d0\u5347\u4e86100\u500d"},"content":{"rendered":"<div><img data-dominant-color=\"5a595d\" data-has-transparency=\"false\" style=\"--dominant-color: #5a595d;\" loading=\"lazy\" decoding=\"async\" class=\"not-transparent alignnone size-full wp-image-21208\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/a46fbed221c9e165fc43352479c07bcffa7276-300x167-1.jpg\" width=\"300\" height=\"167\" alt=\"\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/a46fbed221c9e165fc43352479c07bcffa7276-300x167-1.jpg 300w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/a46fbed221c9e165fc43352479c07bcffa7276-300x167-1-150x84.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/div>\n<div class=\"article-desc\">\u5728skywalking\u4e2d\u53ef\u4ee5\u901a\u8fc7\u200b\u200b\u200btraceId\u200b\u200b\uff08\u5168\u5c40\u552f\u4e00\u7684id\uff09\uff0c\u4e32\u8054\u4e00\u4e2a\u63a5\u53e3\u8bf7\u6c42\u7684\u5b8c\u6574\u94fe\u8def\u3002\u53ef\u4ee5\u770b\u5230\u6574\u4e2a\u63a5\u53e3\u7684\u8017\u65f6\uff0c\u8c03\u7528\u7684\u8fdc\u7a0b\u670d\u52a1\u7684\u8017\u65f6\uff0c\u8bbf\u95ee\u6570\u636e\u5e93\u6216\u8005redis\u7684\u8017\u65f6\u7b49\u7b49\uff0c\u529f\u80fd\u975e\u5e38\u5f3a\u5927\u3002<\/div>\n<div id=\"postspictures\" class=\"article-content\">\n<div id=\"container\" class=\"container am-engine\" data-v-1d7a5742=\"\" data-element=\"root\">\n<h2>\u524d\u8a00<\/h2>\n<p>\u63a5\u53e3\u6027\u80fd\u4f18\u5316\u5bf9\u4e8e\u4ece\u4e8b\u540e\u7aef\u5f00\u53d1\u7684\u540c\u5b66\u6765\u8bf4\uff0c\u80af\u5b9a\u518d\u719f\u6089\u4e0d\u8fc7\u4e86\uff0c\u56e0\u4e3a\u5b83\u662f\u4e00\u4e2a\u8ddf\u5f00\u53d1\u8bed\u8a00\u65e0\u5173\u7684\u516c\u5171\u95ee\u9898\u3002<\/p>\n<p>\u8be5\u95ee\u9898\u8bf4\u7b80\u5355\u4e5f\u7b80\u5355\uff0c\u8bf4\u590d\u6742\u4e5f\u590d\u6742\u3002<\/p>\n<p>\u6709\u65f6\u5019\uff0c\u53ea\u9700\u52a0\u4e2a\u7d22\u5f15\u5c31\u80fd\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n<p>\u6709\u65f6\u5019\uff0c\u9700\u8981\u505a\u4ee3\u7801\u91cd\u6784\u3002<\/p>\n<p>\u6709\u65f6\u5019\uff0c\u9700\u8981\u589e\u52a0\u7f13\u5b58\u3002<\/p>\n<p>\u6709\u65f6\u5019\uff0c\u9700\u8981\u5f15\u5165\u4e00\u4e9b\u4e2d\u95f4\u4ef6\uff0c\u6bd4\u5982mq\u3002<\/p>\n<p>\u6709\u65f6\u5019\uff0c\u9700\u8981\u9700\u8981\u5206\u5e93\u5206\u8868\u3002<\/p>\n<p>\u6709\u65f6\u5019\uff0c\u9700\u8981\u62c6\u5206\u670d\u52a1\u3002<\/p>\n<p>\u7b49\u7b49\u3002\u3002\u3002<\/p>\n<p>\u5bfc\u81f4\u63a5\u53e3\u6027\u80fd\u95ee\u9898\u7684\u539f\u56e0\u5343\u5947\u767e\u602a\uff0c\u4e0d\u540c\u7684\u9879\u76ee\u4e0d\u540c\u7684\u63a5\u53e3\uff0c\u539f\u56e0\u53ef\u80fd\u4e5f\u4e0d\u4e00\u6837\u3002<\/p>\n<p>\u672c\u6587\u6211\u603b\u7ed3\u4e86\u4e00\u4e9b\u884c\u4e4b\u6709\u6548\u7684\uff0c\u4f18\u5316\u63a5\u53e3\u6027\u80fd\u7684\u529e\u6cd5\uff0c\u7ed9\u6709\u9700\u8981\u7684\u670b\u53cb\u4e00\u4e2a\u53c2\u8003\u3002<\/p>\n<h2>1.\u7d22\u5f15<\/h2>\n<p>\u63a5\u53e3\u6027\u80fd\u4f18\u5316\u5927\u5bb6\u7b2c\u4e00\u4e2a\u60f3\u5230\u7684\u53ef\u80fd\u662f\uff1a\u4f18\u5316\u7d22\u5f15\u3002<\/p>\n<p>\u6ca1\u9519\uff0c\u4f18\u5316\u7d22\u5f15\u7684\u6210\u672c\u662f\u6700\u5c0f\u7684\u3002<\/p>\n<p>\u4f60\u901a\u8fc7\u67e5\u770b\u7ebf\u4e0a\u65e5\u5fd7\u6216\u8005\u76d1\u63a7\u62a5\u544a\uff0c\u67e5\u5230\u67d0\u4e2a\u63a5\u53e3\u7528\u5230\u7684\u67d0\u6761sql\u8bed\u53e5\u8017\u65f6\u6bd4\u8f83\u957f\u3002<\/p>\n<p>\u8fd9\u65f6\u4f60\u53ef\u80fd\u4f1a\u6709\u4e0b\u9762\u8fd9\u4e9b\u7591\u95ee\uff1a<\/p>\n<ol class=\"list-paddingleft-1\" data-id=\"odd3d8fc-713T3NQc\">\n<li data-id=\"ld70c578-ETMkk9Xb\">\u8be5sql\u8bed\u53e5\u52a0\u7d22\u5f15\u4e86\u6ca1\uff1f<\/li>\n<li data-id=\"ld70c578-5Tf0SZeP\">\u52a0\u7684\u7d22\u5f15\u751f\u6548\u4e86\u6ca1\uff1f<\/li>\n<li data-id=\"ld70c578-JM4G3Oh4\">mysql\u9009\u9519\u7d22\u5f15\u4e86\u6ca1\uff1f<\/li>\n<\/ol>\n<h3>1.1 \u6ca1\u52a0\u7d22\u5f15<\/h3>\n<p>sql\u8bed\u53e5\u4e2dwhere\u6761\u4ef6\u7684\u5173\u952e\u5b57\u6bb5\uff0c\u6216\u8005order by\u540e\u9762\u7684\u6392\u5e8f\u5b57\u6bb5\uff0c\u5fd8\u4e86\u52a0\u7d22\u5f15\uff0c\u8fd9\u4e2a\u95ee\u9898\u5728\u9879\u76ee\u4e2d\u5f88\u5e38\u89c1\u3002<\/p>\n<p>\u9879\u76ee\u521a\u5f00\u59cb\u7684\u65f6\u5019\uff0c\u7531\u4e8e\u8868\u4e2d\u7684\u6570\u636e\u91cf\u5c0f\uff0c\u52a0\u4e0d\u52a0\u7d22\u5f15sql\u67e5\u8be2\u6027\u80fd\u5dee\u522b\u4e0d\u5927\u3002<\/p>\n<p>\u540e\u6765\uff0c\u968f\u7740\u4e1a\u52a1\u7684\u53d1\u5c55\uff0c\u8868\u4e2d\u6570\u636e\u91cf\u8d8a\u6765\u8d8a\u591a\uff0c\u5c31\u4e0d\u5f97\u4e0d\u52a0\u7d22\u5f15\u4e86\u3002<\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_0\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">show<\/span> <span class=\"token keyword\">index<\/span> <span class=\"token keyword\">from<\/span> <span class=\"token identifier\"><span class=\"token punctuation\">`<\/span>order<span class=\"token punctuation\">`<\/span><\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_0\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u80fd\u5355\u72ec\u67e5\u770b\u67d0\u5f20\u8868\u7684\u7d22\u5f15\u60c5\u51b5\u3002<\/p>\n<p>\u4e5f\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_1\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">show<\/span> <span class=\"token keyword\">create<\/span> <span class=\"token keyword\">table<\/span> <span class=\"token identifier\"><span class=\"token punctuation\">`<\/span>order<span class=\"token punctuation\">`<\/span><\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_1\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u67e5\u770b\u6574\u5f20\u8868\u7684\u5efa\u8868\u8bed\u53e5\uff0c\u91cc\u9762\u540c\u6837\u4f1a\u663e\u793a\u7d22\u5f15\u60c5\u51b5\u3002<\/p>\n<p>\u901a\u8fc7ALTER TABLE\u547d\u4ee4\u53ef\u4ee5\u6dfb\u52a0\u7d22\u5f15\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_2\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">ALTER<\/span> <span class=\"token keyword\">TABLE<\/span> <span class=\"token identifier\"><span class=\"token punctuation\">`<\/span>order<span class=\"token punctuation\">`<\/span><\/span> <span class=\"token keyword\">ADD<\/span> <span class=\"token keyword\">INDEX<\/span> idx_name <span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_2\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u4e5f\u53ef\u4ee5\u901a\u8fc7CREATE INDEX\u547d\u4ee4\u6dfb\u52a0\u7d22\u5f15\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_3\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">CREATE<\/span> <span class=\"token keyword\">INDEX<\/span> idx_name <span class=\"token keyword\">ON<\/span> <span class=\"token identifier\"><span class=\"token punctuation\">`<\/span>order<span class=\"token punctuation\">`<\/span><\/span> <span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_3\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u4e0d\u8fc7\u8fd9\u91cc\u6709\u4e00\u4e2a\u9700\u8981\u6ce8\u610f\u7684\u5730\u65b9\u662f\uff1a\u60f3\u901a\u8fc7\u547d\u4ee4\u4fee\u6539\u7d22\u5f15\uff0c\u662f\u4e0d\u884c\u7684\u3002<\/p>\n<p>\u76ee\u524d\u5728mysql\u4e2d\u5982\u679c\u60f3\u8981\u4fee\u6539\u7d22\u5f15\uff0c\u53ea\u80fd\u5148\u5220\u9664\u7d22\u5f15\uff0c\u518d\u91cd\u65b0\u6dfb\u52a0\u65b0\u7684\u3002<\/p>\n<p>\u5220\u9664\u7d22\u5f15\u53ef\u4ee5\u7528DROP INDEX\u547d\u4ee4\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_4\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">ALTER<\/span> <span class=\"token keyword\">TABLE<\/span> <span class=\"token identifier\"><span class=\"token punctuation\">`<\/span>order<span class=\"token punctuation\">`<\/span><\/span> <span class=\"token keyword\">DROP<\/span> <span class=\"token keyword\">INDEX<\/span> idx_name<span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_4\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u7528DROP INDEX\u547d\u4ee4\u4e5f\u884c\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_5\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">DROP<\/span> <span class=\"token keyword\">INDEX<\/span> idx_name <span class=\"token keyword\">ON<\/span> <span class=\"token identifier\"><span class=\"token punctuation\">`<\/span>order<span class=\"token punctuation\">`<\/span><\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_5\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3>1.2 \u7d22\u5f15\u6ca1\u751f\u6548<\/h3>\n<p>\u901a\u8fc7\u4e0a\u9762\u7684\u547d\u4ee4\u6211\u4eec\u5df2\u7ecf\u80fd\u591f\u786e\u8ba4\u7d22\u5f15\u662f\u6709\u7684\uff0c\u4f46\u5b83\u751f\u6548\u4e86\u6ca1\uff1f\u6b64\u65f6\u4f60\u5185\u5fc3\u6216\u8bb8\u4f1a\u5192\u51fa\u8fd9\u6837\u4e00\u4e2a\u7591\u95ee\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u5982\u4f55\u67e5\u770b\u7d22\u5f15\u6709\u6ca1\u6709\u751f\u6548\u5462\uff1f<\/p>\n<p>\u7b54\uff1a\u53ef\u4ee5\u4f7f\u7528explain\u547d\u4ee4\uff0c\u67e5\u770bmysql\u7684\u6267\u884c\u8ba1\u5212\uff0c\u5b83\u4f1a\u663e\u793a\u7d22\u5f15\u7684\u4f7f\u7528\u60c5\u51b5\u3002<\/p>\n<p>\u4f8b\u5982\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_6\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">explain<\/span> <span class=\"token keyword\">select<\/span> <span class=\"token operator\">*<\/span> <span class=\"token keyword\">from<\/span> <span class=\"token identifier\"><span class=\"token punctuation\">`<\/span>order<span class=\"token punctuation\">`<\/span><\/span> <span class=\"token keyword\">where<\/span> code<span class=\"token operator\">=<\/span><span class=\"token string\">'002'<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_6\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u7ed3\u679c\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s8.51cto.com\/oss\/202407\/17\/d825ad617287995073f1591f4546f1d6692049.jpg\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u901a\u8fc7\u8fd9\u51e0\u5217\u53ef\u4ee5\u5224\u65ad\u7d22\u5f15\u4f7f\u7528\u60c5\u51b5\uff0c\u6267\u884c\u8ba1\u5212\u5305\u542b\u5217\u7684\u542b\u4e49\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s5.51cto.com\/oss\/202407\/17\/b74435551ddbaa94efd2400cc9c1427602c721.jpg\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u5982\u679c\u4f60\u60f3\u8fdb\u4e00\u6b65\u4e86\u89e3explain\u7684\u8be6\u7ec6\u7528\u6cd5\uff0c\u53ef\u4ee5\u770b\u770b\u6211\u7684\u53e6\u4e00\u7bc7\u6587\u7ae0\u300aexplain | \u7d22\u5f15\u4f18\u5316\u7684\u8fd9\u628a\u7edd\u4e16\u597d\u5251\uff0c\u4f60\u771f\u7684\u4f1a\u7528\u5417\uff1f\u300b<\/p>\n<p>\u8bf4\u5b9e\u8bdd\uff0csql\u8bed\u53e5\u6ca1\u6709\u8d70\u7d22\u5f15\uff0c\u6392\u9664\u6ca1\u6709\u5efa\u7d22\u5f15\u4e4b\u5916\uff0c\u6700\u5927\u7684\u53ef\u80fd\u6027\u662f\u7d22\u5f15\u5931\u6548\u4e86\u3002<\/p>\n<p>\u4e0b\u9762\u8bf4\u8bf4\u7d22\u5f15\u5931\u6548\u7684\u5e38\u89c1\u539f\u56e0\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s2.51cto.com\/oss\/202407\/17\/a3e31de0177df4d41c875431dfc18730d6b7cf.jpg\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u5982\u679c\u4e0d\u662f\u4e0a\u9762\u7684\u8fd9\u4e9b\u539f\u56e0\uff0c\u5219\u9700\u8981\u518d\u8fdb\u4e00\u6b65\u6392\u67e5\u4e00\u4e0b\u5176\u4ed6\u539f\u56e0\u3002<\/p>\n<h3>1.3 \u9009\u9519\u7d22\u5f15<\/h3>\n<p>\u6b64\u5916\uff0c\u4f60\u6709\u6ca1\u6709\u9047\u5230\u8fc7\u8fd9\u6837\u4e00\u79cd\u60c5\u51b5\uff1a\u660e\u660e\u662f\u540c\u4e00\u6761sql\uff0c\u53ea\u6709\u5165\u53c2\u4e0d\u540c\u800c\u5df2\u3002\u6709\u7684\u65f6\u5019\u8d70\u7684\u7d22\u5f15a\uff0c\u6709\u7684\u65f6\u5019\u5374\u8d70\u7684\u7d22\u5f15b\uff1f<\/p>\n<p>\u6ca1\u9519\uff0c\u6709\u65f6\u5019mysql\u4f1a\u9009\u9519\u7d22\u5f15\u3002<\/p>\n<p>\u5fc5\u8981\u65f6\u53ef\u4ee5\u4f7f\u7528force index\u6765\u5f3a\u5236\u67e5\u8be2sql\u8d70\u67d0\u4e2a\u7d22\u5f15\u3002<\/p>\n<p>\u81f3\u4e8e\u4e3a\u4ec0\u4e48mysql\u4f1a\u9009\u9519\u7d22\u5f15\uff0c\u540e\u9762\u6709\u4e13\u95e8\u7684\u6587\u7ae0\u4ecb\u7ecd\u7684\uff0c\u8fd9\u91cc\u5148\u7559\u70b9\u60ac\u5ff5\u3002<\/p>\n<h2>2. sql\u4f18\u5316<\/h2>\n<p>\u5982\u679c\u4f18\u5316\u4e86\u7d22\u5f15\u4e4b\u540e\uff0c\u4e5f\u6ca1\u5565\u6548\u679c\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u8bd5\u7740\u4f18\u5316\u4e00\u4e0bsql\u8bed\u53e5\uff0c\u56e0\u4e3a\u5b83\u7684\u6539\u9020\u6210\u672c\u76f8\u5bf9\u4e8ejava\u4ee3\u7801\u6765\u8bf4\u4e5f\u8981\u5c0f\u5f97\u591a\u3002<\/p>\n<p>\u4e0b\u9762\u7ed9\u5927\u5bb6\u5217\u4e3e\u4e86sql\u4f18\u5316\u768415\u4e2a\u5c0f\u6280\u5de7\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s9.51cto.com\/oss\/202407\/17\/18cf45485e91c48de3c3493d1257ebd02843c8.jpg\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u7531\u4e8e\u8fd9\u4e9b\u6280\u5de7\u5728\u6211\u4e4b\u524d\u7684\u6587\u7ae0\u4e2d\u5df2\u7ecf\u8be6\u7ec6\u4ecb\u7ecd\u8fc7\u4e86\uff0c\u5728\u8fd9\u91cc\u6211\u5c31\u4e0d\u6df1\u5165\u4e86\u3002<\/p>\n<p>\u66f4\u8be6\u7ec6\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u770b\u6211\u7684\u53e6\u4e00\u7bc7\u6587\u7ae0\u300a\u804a\u804asql\u4f18\u5316\u768415\u4e2a\u5c0f\u6280\u5de7\u300b\uff0c\u76f8\u4fe1\u770b\u5b8c\u4f60\u4f1a\u6709\u5f88\u591a\u6536\u83b7\u3002<\/p>\n<h2>3. \u8fdc\u7a0b\u8c03\u7528<\/h2>\n<p>\u5f88\u591a\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u5728\u67d0\u4e2a\u63a5\u53e3\u4e2d\uff0c\u8c03\u7528\u5176\u4ed6\u670d\u52a1\u7684\u63a5\u53e3\u3002<\/p>\n<p>\u6bd4\u5982\u6709\u8fd9\u6837\u7684\u4e1a\u52a1\u573a\u666f\uff1a<\/p>\n<p>\u5728\u7528\u6237\u4fe1\u606f\u67e5\u8be2\u63a5\u53e3\u4e2d\u9700\u8981\u8fd4\u56de\uff1a\u7528\u6237\u540d\u79f0\u3001\u6027\u522b\u3001\u7b49\u7ea7\u3001\u5934\u50cf\u3001\u79ef\u5206\u3001\u6210\u957f\u503c\u7b49\u4fe1\u606f\u3002<\/p>\n<p>\u800c\u7528\u6237\u540d\u79f0\u3001\u6027\u522b\u3001\u7b49\u7ea7\u3001\u5934\u50cf\u5728\u7528\u6237\u670d\u52a1\u4e2d\uff0c\u79ef\u5206\u5728\u79ef\u5206\u670d\u52a1\u4e2d\uff0c\u6210\u957f\u503c\u5728\u6210\u957f\u503c\u670d\u52a1\u4e2d\u3002\u4e3a\u4e86\u6c47\u603b\u8fd9\u4e9b\u6570\u636e\u7edf\u4e00\u8fd4\u56de\uff0c\u9700\u8981\u53e6\u5916\u63d0\u4f9b\u4e00\u4e2a\u5bf9\u5916\u63a5\u53e3\u670d\u52a1\u3002<\/p>\n<p>\u4e8e\u662f\uff0c\u7528\u6237\u4fe1\u606f\u67e5\u8be2\u63a5\u53e3\u9700\u8981\u8c03\u7528\u7528\u6237\u67e5\u8be2\u63a5\u53e3\u3001\u79ef\u5206\u67e5\u8be2\u63a5\u53e3 \u548c \u6210\u957f\u503c\u67e5\u8be2\u63a5\u53e3\uff0c\u7136\u540e\u6c47\u603b\u6570\u636e\u7edf\u4e00\u8fd4\u56de\u3002<\/p>\n<p>\u8c03\u7528\u8fc7\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img data-dominant-color=\"e6e5e4\" data-has-transparency=\"true\" style=\"--dominant-color: #e6e5e4;\" loading=\"lazy\" decoding=\"async\" class=\"has-transparency alignnone size-full wp-image-21209\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/11b8e0a619a80a966c786899b9f821ca4707c2.png\" width=\"326\" height=\"712\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/11b8e0a619a80a966c786899b9f821ca4707c2.png 326w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/11b8e0a619a80a966c786899b9f821ca4707c2-137x300.png 137w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/11b8e0a619a80a966c786899b9f821ca4707c2-69x150.png 69w\" sizes=\"auto, (max-width: 326px) 100vw, 326px\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u8c03\u7528\u8fdc\u7a0b\u63a5\u53e3\u603b\u8017\u65f6 530ms = 200ms + 150ms + 180ms<\/p>\n<p>\u663e\u7136\u8fd9\u79cd\u4e32\u884c\u8c03\u7528\u8fdc\u7a0b\u63a5\u53e3\u6027\u80fd\u662f\u975e\u5e38\u4e0d\u597d\u7684\uff0c\u8c03\u7528\u8fdc\u7a0b\u63a5\u53e3\u603b\u7684\u8017\u65f6\u4e3a\u6240\u6709\u7684\u8fdc\u7a0b\u63a5\u53e3\u8017\u65f6\u4e4b\u548c\u3002<\/p>\n<p>\u90a3\u4e48\u5982\u4f55\u4f18\u5316\u8fdc\u7a0b\u63a5\u53e3\u6027\u80fd\u5462\uff1f<\/p>\n<h3>3.1 \u5e76\u884c\u8c03\u7528<\/h3>\n<p>\u4e0a\u9762\u8bf4\u5230\uff0c\u65e2\u7136\u4e32\u884c\u8c03\u7528\u591a\u4e2a\u8fdc\u7a0b\u63a5\u53e3\u6027\u80fd\u5f88\u5dee\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u6539\u6210\u5e76\u884c\u5462\uff1f<\/p>\n<p>\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s4.51cto.com\/oss\/202407\/17\/21754cf651e2bce1f015163a637d5a092a8abb.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u8c03\u7528\u8fdc\u7a0b\u63a5\u53e3\u603b\u8017\u65f6 200ms = 200ms\uff08\u5373\u8017\u65f6\u6700\u957f\u7684\u90a3\u6b21\u8fdc\u7a0b\u63a5\u53e3\u8c03\u7528\uff09<\/p>\n<p>\u5728java8\u4e4b\u524d\u53ef\u4ee5\u901a\u8fc7\u5b9e\u73b0Callable\u63a5\u53e3\uff0c\u83b7\u53d6\u7ebf\u7a0b\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n<p>java8\u4ee5\u540e\u901a\u8fc7CompleteFuture\u7c7b\u5b9e\u73b0\u8be5\u529f\u80fd\u3002\u6211\u4eec\u8fd9\u91cc\u4ee5CompleteFuture\u4e3a\u4f8b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_7\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">public<\/span> UserInfo getUserInfo<span class=\"token punctuation\">(<\/span>Long id<span class=\"token punctuation\">)<\/span> throws InterruptedException<span class=\"token punctuation\">,<\/span> ExecutionException {\r\n    final UserInfo userInfo <span class=\"token operator\">=<\/span> new UserInfo<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    CompletableFuture userFuture <span class=\"token operator\">=<\/span> CompletableFuture<span class=\"token punctuation\">.<\/span>supplyAsync<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> {\r\n        getRemoteUserAndFill<span class=\"token punctuation\">(<\/span>id<span class=\"token punctuation\">,<\/span> userInfo<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">Boolean<\/span><span class=\"token punctuation\">.<\/span><span class=\"token boolean\">TRUE<\/span><span class=\"token punctuation\">;<\/span>\r\n    }<span class=\"token punctuation\">,<\/span> executor<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    CompletableFuture bonusFuture <span class=\"token operator\">=<\/span> CompletableFuture<span class=\"token punctuation\">.<\/span>supplyAsync<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> {\r\n        getRemoteBonusAndFill<span class=\"token punctuation\">(<\/span>id<span class=\"token punctuation\">,<\/span> userInfo<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">Boolean<\/span><span class=\"token punctuation\">.<\/span><span class=\"token boolean\">TRUE<\/span><span class=\"token punctuation\">;<\/span>\r\n    }<span class=\"token punctuation\">,<\/span> executor<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    CompletableFuture growthFuture <span class=\"token operator\">=<\/span> CompletableFuture<span class=\"token punctuation\">.<\/span>supplyAsync<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> {\r\n        getRemoteGrowthAndFill<span class=\"token punctuation\">(<\/span>id<span class=\"token punctuation\">,<\/span> userInfo<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">Boolean<\/span><span class=\"token punctuation\">.<\/span><span class=\"token boolean\">TRUE<\/span><span class=\"token punctuation\">;<\/span>\r\n    }<span class=\"token punctuation\">,<\/span> executor<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    CompletableFuture<span class=\"token punctuation\">.<\/span>allOf<span class=\"token punctuation\">(<\/span>userFuture<span class=\"token punctuation\">,<\/span> bonusFuture<span class=\"token punctuation\">,<\/span> growthFuture<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    userFuture<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    bonusFuture<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    growthFuture<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token keyword\">return<\/span> userInfo<span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_7\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<li>20.<\/li>\n<li>21.<\/li>\n<li>22.<\/li>\n<li>23.<\/li>\n<li>24.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<blockquote><p>\u6e29\u99a8\u63d0\u9192\u4e00\u4e0b\uff0c\u8fd9\u4e24\u79cd\u65b9\u5f0f\u522b\u5fd8\u4e86\u4f7f\u7528\u7ebf\u7a0b\u6c60\u3002\u793a\u4f8b\u4e2d\u6211\u7528\u5230\u4e86executor\uff0c\u8868\u793a\u81ea\u5b9a\u4e49\u7684\u7ebf\u7a0b\u6c60\uff0c\u4e3a\u4e86\u9632\u6b62\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\uff0c\u51fa\u73b0\u7ebf\u7a0b\u8fc7\u591a\u7684\u95ee\u9898\u3002<\/p><\/blockquote>\n<h3>3.2 \u6570\u636e\u5f02\u6784<\/h3>\n<p>\u4e0a\u9762\u8bf4\u5230\u7684\u7528\u6237\u4fe1\u606f\u67e5\u8be2\u63a5\u53e3\u9700\u8981\u8c03\u7528\u7528\u6237\u67e5\u8be2\u63a5\u53e3\u3001\u79ef\u5206\u67e5\u8be2\u63a5\u53e3 \u548c \u6210\u957f\u503c\u67e5\u8be2\u63a5\u53e3\uff0c\u7136\u540e\u6c47\u603b\u6570\u636e\u7edf\u4e00\u8fd4\u56de\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u6211\u4eec\u80fd\u4e0d\u80fd\u628a\u6570\u636e\u5197\u4f59\u4e00\u4e0b\uff0c\u628a\u7528\u6237\u4fe1\u606f\u3001\u79ef\u5206\u548c\u6210\u957f\u503c\u7684\u6570\u636e\u7edf\u4e00\u5b58\u50a8\u5230\u4e00\u4e2a\u5730\u65b9\uff0c\u6bd4\u5982\uff1aredis\uff0c\u5b58\u7684\u6570\u636e\u7ed3\u6784\u5c31\u662f\u7528\u6237\u4fe1\u606f\u67e5\u8be2\u63a5\u53e3\u6240\u9700\u8981\u7684\u5185\u5bb9\u3002\u7136\u540e\u901a\u8fc7\u7528\u6237id\uff0c\u76f4\u63a5\u4eceredis\u4e2d\u67e5\u8be2\u6570\u636e\u51fa\u6765\uff0c\u4e0d\u5c31OK\u4e86\uff1f<\/p>\n<p>\u5982\u679c\u5728\u9ad8\u5e76\u53d1\u7684\u573a\u666f\u4e0b\uff0c\u4e3a\u4e86\u63d0\u5347\u63a5\u53e3\u6027\u80fd\uff0c\u8fdc\u7a0b\u63a5\u53e3\u8c03\u7528\u5927\u6982\u7387\u4f1a\u88ab\u53bb\u6389\uff0c\u800c\u6539\u6210\u4fdd\u5b58\u5197\u4f59\u6570\u636e\u7684\u6570\u636e\u5f02\u6784\u65b9\u6848\u3002<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s8.51cto.com\/oss\/202407\/17\/94ca99d792320ca2e0b8726587ac6b9ac46ed7.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u4f7f\u7528\u4e86\u6570\u636e\u5f02\u6784\u65b9\u6848\uff0c\u5c31\u53ef\u80fd\u4f1a\u51fa\u73b0\u6570\u636e\u4e00\u81f4\u6027\u95ee\u9898\u3002<\/p>\n<p>\u7528\u6237\u4fe1\u606f\u3001\u79ef\u5206\u548c\u6210\u957f\u503c\u6709\u66f4\u65b0\u7684\u8bdd\uff0c\u5927\u90e8\u5206\u60c5\u51b5\u4e0b\uff0c\u4f1a\u5148\u66f4\u65b0\u5230\u6570\u636e\u5e93\uff0c\u7136\u540e\u540c\u6b65\u5230redis\u3002\u4f46\u8fd9\u79cd\u8de8\u5e93\u7684\u64cd\u4f5c\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e24\u8fb9\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\u4ea7\u751f\u3002<\/p>\n<h2>4. \u91cd\u590d\u8c03\u7528<\/h2>\n<p>\u91cd\u590d\u8c03\u7528\u5728\u6211\u4eec\u7684\u65e5\u5e38\u5de5\u4f5c\u4ee3\u7801\u4e2d\u53ef\u4ee5\u8bf4\u968f\u5904\u53ef\u89c1\uff0c\u4f46\u5982\u679c\u6ca1\u6709\u63a7\u5236\u597d\uff0c\u4f1a\u975e\u5e38\u5f71\u54cd\u63a5\u53e3\u7684\u6027\u80fd\u3002<\/p>\n<p>\u4e0d\u4fe1\uff0c\u6211\u4eec\u4e00\u8d77\u770b\u770b\u3002<\/p>\n<h3>4.1 \u5faa\u73af\u67e5\u6570\u636e\u5e93<\/h3>\n<p>\u6709\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u4ece\u6307\u5b9a\u7684\u7528\u6237\u96c6\u5408\u4e2d\uff0c\u67e5\u8be2\u51fa\u6709\u54ea\u4e9b\u662f\u5728\u6570\u636e\u5e93\u4e2d\u5df2\u7ecf\u5b58\u5728\u7684\u3002<\/p>\n<p>\u5b9e\u73b0\u4ee3\u7801\u53ef\u4ee5\u8fd9\u6837\u5199\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_8\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">public<\/span> List<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">User<\/span><span class=\"token operator\">&gt;<\/span> queryUser<span class=\"token punctuation\">(<\/span>List<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">User<\/span><span class=\"token operator\">&gt;<\/span> searchList<span class=\"token punctuation\">)<\/span> {\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>CollectionUtils<span class=\"token punctuation\">.<\/span>isEmpty<span class=\"token punctuation\">(<\/span>searchList<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> Collections<span class=\"token punctuation\">.<\/span>emptyList<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n    List<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">User<\/span><span class=\"token operator\">&gt;<\/span> result <span class=\"token operator\">=<\/span> Lists<span class=\"token punctuation\">.<\/span>newArrayList<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    searchList<span class=\"token punctuation\">.<\/span>forEach<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">user<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> result<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">add<\/span><span class=\"token punctuation\">(<\/span>userMapper<span class=\"token punctuation\">.<\/span>getUserById<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">user<\/span><span class=\"token punctuation\">.<\/span>getId<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">return<\/span> result<span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_8\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8fd9\u91cc\u5982\u679c\u670950\u4e2a\u7528\u6237\uff0c\u5219\u9700\u8981\u5faa\u73af50\u6b21\uff0c\u53bb\u67e5\u8be2\u6570\u636e\u5e93\u3002\u6211\u4eec\u90fd\u77e5\u9053\uff0c\u6bcf\u67e5\u8be2\u4e00\u6b21\u6570\u636e\u5e93\uff0c\u5c31\u662f\u4e00\u6b21\u8fdc\u7a0b\u8c03\u7528\u3002<\/p>\n<p>\u5982\u679c\u67e5\u8be250\u6b21\u6570\u636e\u5e93\uff0c\u5c31\u670950\u6b21\u8fdc\u7a0b\u8c03\u7528\uff0c\u8fd9\u662f\u975e\u5e38\u8017\u65f6\u7684\u64cd\u4f5c\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u6211\u4eec\u5982\u4f55\u4f18\u5316\u5462\uff1f<\/p>\n<p>\u5177\u4f53\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_9\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">public<\/span> List<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">User<\/span><span class=\"token operator\">&gt;<\/span> queryUser<span class=\"token punctuation\">(<\/span>List<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">User<\/span><span class=\"token operator\">&gt;<\/span> searchList<span class=\"token punctuation\">)<\/span> {\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>CollectionUtils<span class=\"token punctuation\">.<\/span>isEmpty<span class=\"token punctuation\">(<\/span>searchList<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> Collections<span class=\"token punctuation\">.<\/span>emptyList<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n    List<span class=\"token operator\">&lt;<\/span>Long<span class=\"token operator\">&gt;<\/span> ids <span class=\"token operator\">=<\/span> searchList<span class=\"token punctuation\">.<\/span>stream<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>map<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">User<\/span>::getId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>collect<span class=\"token punctuation\">(<\/span>Collectors<span class=\"token punctuation\">.<\/span>toList<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">return<\/span> userMapper<span class=\"token punctuation\">.<\/span>getUserByIds<span class=\"token punctuation\">(<\/span>ids<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_9\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u63d0\u4f9b\u4e00\u4e2a\u6839\u636e\u7528\u6237id\u96c6\u5408\u6279\u91cf\u67e5\u8be2\u7528\u6237\u7684\u63a5\u53e3\uff0c\u53ea\u8fdc\u7a0b\u8c03\u7528\u4e00\u6b21\uff0c\u5c31\u80fd\u67e5\u8be2\u51fa\u6240\u6709\u7684\u6570\u636e\u3002<\/p>\n<blockquote><p>\u8fd9\u91cc\u6709\u4e2a\u9700\u8981\u6ce8\u610f\u7684\u5730\u65b9\u662f\uff1aid\u96c6\u5408\u7684\u5927\u5c0f\u8981\u505a\u9650\u5236\uff0c\u6700\u597d\u4e00\u6b21\u4e0d\u8981\u8bf7\u6c42\u592a\u591a\u7684\u6570\u636e\u3002\u8981\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u800c\u5b9a\uff0c\u5efa\u8bae\u63a7\u5236\u6bcf\u6b21\u8bf7\u6c42\u7684\u8bb0\u5f55\u6761\u6570\u5728500\u4ee5\u5185\u3002<\/p><\/blockquote>\n<h3>4.2 \u6b7b\u5faa\u73af<\/h3>\n<p>\u6709\u4e9b\u5c0f\u4f19\u4f34\u770b\u5230\u8fd9\u4e2a\u6807\u9898\uff0c\u53ef\u80fd\u4f1a\u611f\u5230\u6709\u70b9\u610f\u5916\uff0c\u6b7b\u5faa\u73af\u4e5f\u7b97\uff1f<\/p>\n<p>\u4ee3\u7801\u4e2d\u4e0d\u662f\u5e94\u8be5\u907f\u514d\u6b7b\u5faa\u73af\u5417\uff1f\u4e3a\u5565\u8fd8\u662f\u4f1a\u4ea7\u751f\u6b7b\u5faa\u73af\uff1f<\/p>\n<p>\u6709\u65f6\u5019\u6b7b\u5faa\u73af\u662f\u6211\u4eec\u81ea\u5df1\u5199\u7684\uff0c\u4f8b\u5982\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_10\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">while<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">true<\/span><span class=\"token punctuation\">)<\/span> {\r\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>condition<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">break<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n    System<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">out<\/span><span class=\"token punctuation\">.<\/span>println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"do samething\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_10\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8fd9\u91cc\u4f7f\u7528\u4e86while(true)\u7684\u5faa\u73af\u8c03\u7528\uff0c\u8fd9\u79cd\u5199\u6cd5\u5728CAS\u81ea\u65cb\u9501\u4e2d\u4f7f\u7528\u6bd4\u8f83\u591a\u3002<\/p>\n<p>\u5f53\u6ee1\u8db3condition\u7b49\u4e8etrue\u7684\u65f6\u5019\uff0c\u5219\u81ea\u52a8\u9000\u51fa\u8be5\u5faa\u73af\u3002<\/p>\n<p>\u5982\u679ccondition\u6761\u4ef6\u975e\u5e38\u590d\u6742\uff0c\u4e00\u65e6\u51fa\u73b0\u5224\u65ad\u4e0d\u6b63\u786e\uff0c\u6216\u8005\u5c11\u5199\u4e86\u4e00\u4e9b\u903b\u8f91\u5224\u65ad\uff0c\u5c31\u53ef\u80fd\u5728\u67d0\u4e9b\u573a\u666f\u4e0b\u51fa\u73b0\u6b7b\u5faa\u73af\u7684\u95ee\u9898\u3002<\/p>\n<p>\u51fa\u73b0\u6b7b\u5faa\u73af\uff0c\u5927\u6982\u7387\u662f\u5f00\u53d1\u4eba\u5458\u4eba\u4e3a\u7684bug\u5bfc\u81f4\u7684\uff0c\u4e0d\u8fc7\u8fd9\u79cd\u60c5\u51b5\u5f88\u5bb9\u6613\u88ab\u6d4b\u51fa\u6765\u3002<\/p>\n<blockquote><p>\u8fd8\u6709\u4e00\u79cd\u9690\u85cf\u7684\u6bd4\u8f83\u6df1\u7684\u6b7b\u5faa\u73af\uff0c\u662f\u7531\u4e8e\u4ee3\u7801\u5199\u7684\u4e0d\u592a\u4e25\u8c28\u5bfc\u81f4\u7684\u3002\u5982\u679c\u7528\u6b63\u5e38\u6570\u636e\uff0c\u53ef\u80fd\u6d4b\u4e0d\u51fa\u95ee\u9898\uff0c\u4f46\u4e00\u65e6\u51fa\u73b0\u5f02\u5e38\u6570\u636e\uff0c\u5c31\u4f1a\u7acb\u5373\u51fa\u73b0\u6b7b\u5faa\u73af\u3002<\/p><\/blockquote>\n<h3>4.3 \u65e0\u9650\u9012\u5f52<\/h3>\n<p>\u5982\u679c\u60f3\u8981\u6253\u5370\u67d0\u4e2a\u5206\u7c7b\u7684\u6240\u6709\u7236\u5206\u7c7b\uff0c\u53ef\u4ee5\u7528\u7c7b\u4f3c\u8fd9\u6837\u7684\u9012\u5f52\u65b9\u6cd5\u5b9e\u73b0\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_11\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">public<\/span> void printCategory<span class=\"token punctuation\">(<\/span>Category category<span class=\"token punctuation\">)<\/span> {\r\n  <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>category <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> <span class=\"token boolean\">null<\/span> \r\n      <span class=\"token operator\">||<\/span> category<span class=\"token punctuation\">.<\/span>getParentId<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">=<\/span> <span class=\"token boolean\">null<\/span><span class=\"token punctuation\">)<\/span> {\r\n     <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span>\r\n  } \r\n  System<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">out<\/span><span class=\"token punctuation\">.<\/span>println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u7236\u5206\u7c7b\u540d\u79f0\uff1a\"<\/span><span class=\"token operator\">+<\/span> category<span class=\"token punctuation\">.<\/span>getName<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  Category parent <span class=\"token operator\">=<\/span> categoryMapper<span class=\"token punctuation\">.<\/span>getCategoryById<span class=\"token punctuation\">(<\/span>category<span class=\"token punctuation\">.<\/span>getParentId<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  printCategory<span class=\"token punctuation\">(<\/span>parent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_11\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u8fd9\u6bb5\u4ee3\u7801\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002<\/p>\n<p>\u4f46\u5982\u679c\u67d0\u6b21\u6709\u4eba\u8bef\u64cd\u4f5c\uff0c\u628a\u67d0\u4e2a\u5206\u7c7b\u7684parentId\u6307\u5411\u4e86\u5b83\u81ea\u5df1\uff0c\u8fd9\u6837\u5c31\u4f1a\u51fa\u73b0\u65e0\u9650\u9012\u5f52\u7684\u60c5\u51b5\u3002\u5bfc\u81f4\u63a5\u53e3\u4e00\u76f4\u4e0d\u80fd\u8fd4\u56de\u6570\u636e\uff0c\u6700\u7ec8\u4f1a\u53d1\u751f\u5806\u6808\u6ea2\u51fa\u3002<\/p>\n<blockquote><p>\u5efa\u8bae\u5199\u9012\u5f52\u65b9\u6cd5\u65f6\uff0c\u8bbe\u5b9a\u4e00\u4e2a\u9012\u5f52\u7684\u6df1\u5ea6\uff0c\u6bd4\u5982\uff1a\u5206\u7c7b\u6700\u5927\u7b49\u7ea7\u67094\u7ea7\uff0c\u5219\u6df1\u5ea6\u53ef\u4ee5\u8bbe\u7f6e\u4e3a4\u3002\u7136\u540e\u5728\u9012\u5f52\u65b9\u6cd5\u4e2d\u505a\u5224\u65ad\uff0c\u5982\u679c\u6df1\u5ea6\u5927\u4e8e4\u65f6\uff0c\u5219\u81ea\u52a8\u8fd4\u56de\uff0c\u8fd9\u6837\u5c31\u80fd\u907f\u514d\u65e0\u9650\u5faa\u73af\u7684\u60c5\u51b5\u3002<\/p><\/blockquote>\n<h2>5. \u5f02\u6b65\u5904\u7406<\/h2>\n<p>\u6709\u65f6\u5019\uff0c\u6211\u4eec\u63a5\u53e3\u6027\u80fd\u4f18\u5316\uff0c\u9700\u8981\u91cd\u65b0\u68b3\u7406\u4e00\u4e0b\u4e1a\u52a1\u903b\u8f91\uff0c\u770b\u770b\u662f\u5426\u6709\u8bbe\u8ba1\u4e0a\u4e0d\u592a\u5408\u7406\u7684\u5730\u65b9\u3002<\/p>\n<p>\u6bd4\u5982\u6709\u4e2a\u7528\u6237\u8bf7\u6c42\u63a5\u53e3\u4e2d\uff0c\u9700\u8981\u505a\u4e1a\u52a1\u64cd\u4f5c\uff0c\u53d1\u7ad9\u5185\u901a\u77e5\uff0c\u548c\u8bb0\u5f55\u64cd\u4f5c\u65e5\u5fd7\u3002\u4e3a\u4e86\u5b9e\u73b0\u8d77\u6765\u6bd4\u8f83\u65b9\u4fbf\uff0c\u901a\u5e38\u6211\u4eec\u4f1a\u5c06\u8fd9\u4e9b\u903b\u8f91\u653e\u5728\u63a5\u53e3\u4e2d\u540c\u6b65\u6267\u884c\uff0c\u52bf\u5fc5\u4f1a\u5bf9\u63a5\u53e3\u6027\u80fd\u9020\u6210\u4e00\u5b9a\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u63a5\u53e3\u5185\u90e8\u6d41\u7a0b\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s3.51cto.com\/oss\/202407\/17\/453db6767effb5ed2466553c4deb9b62d09c53.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u8fd9\u4e2a\u63a5\u53e3\u8868\u9762\u4e0a\u770b\u8d77\u6765\u6ca1\u6709\u95ee\u9898\uff0c\u4f46\u5982\u679c\u4f60\u4ed4\u7ec6\u68b3\u7406\u4e00\u4e0b\u4e1a\u52a1\u903b\u8f91\uff0c\u4f1a\u53d1\u73b0\u53ea\u6709\u4e1a\u52a1\u64cd\u4f5c\u624d\u662f\u6838\u5fc3\u903b\u8f91\uff0c\u5176\u4ed6\u7684\u529f\u80fd\u90fd\u662f\u975e\u6838\u5fc3\u903b\u8f91\u3002<\/p>\n<blockquote><p>\u5728\u8fd9\u91cc\u6709\u4e2a\u539f\u5219\u5c31\u662f\uff1a\u6838\u5fc3\u903b\u8f91\u53ef\u4ee5\u540c\u6b65\u6267\u884c\uff0c\u540c\u6b65\u5199\u5e93\u3002\u975e\u6838\u5fc3\u903b\u8f91\uff0c\u53ef\u4ee5\u5f02\u6b65\u6267\u884c\uff0c\u5f02\u6b65\u5199\u5e93\u3002<\/p><\/blockquote>\n<p>\u4e0a\u9762\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u53d1\u7ad9\u5185\u901a\u77e5\u548c\u7528\u6237\u64cd\u4f5c\u65e5\u5fd7\u529f\u80fd\uff0c\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u4e0d\u9ad8\uff0c\u5373\u4f7f\u665a\u70b9\u5199\u5e93\uff0c\u7528\u6237\u65e0\u975e\u662f\u665a\u70b9\u6536\u5230\u7ad9\u5185\u901a\u77e5\uff0c\u6216\u8005\u8fd0\u8425\u665a\u70b9\u770b\u5230\u7528\u6237\u64cd\u4f5c\u65e5\u5fd7\uff0c\u5bf9\u4e1a\u52a1\u5f71\u54cd\u4e0d\u5927\uff0c\u6240\u4ee5\u5b8c\u5168\u53ef\u4ee5\u5f02\u6b65\u5904\u7406\u3002<\/p>\n<p>\u901a\u5e38\u5f02\u6b65\u4e3b\u8981\u6709\u4e24\u79cd\uff1a\u591a\u7ebf\u7a0b\u00a0\u548c\u00a0mq\u3002<\/p>\n<h3>5.1 \u7ebf\u7a0b\u6c60<\/h3>\n<p>\u4f7f\u7528\u7ebf\u7a0b\u6c60\u6539\u9020\u4e4b\u540e\uff0c\u63a5\u53e3\u903b\u8f91\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s7.51cto.com\/oss\/202407\/17\/f191eff316a835dca98578736a5e2217f6ea81.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u53d1\u7ad9\u5185\u901a\u77e5\u548c\u7528\u6237\u64cd\u4f5c\u65e5\u5fd7\u529f\u80fd\uff0c\u88ab\u63d0\u4ea4\u5230\u4e86\u4e24\u4e2a\u5355\u72ec\u7684\u7ebf\u7a0b\u6c60\u4e2d\u3002<\/p>\n<p>\u8fd9\u6837\u63a5\u53e3\u4e2d\u91cd\u70b9\u5173\u6ce8\u7684\u662f\u4e1a\u52a1\u64cd\u4f5c\uff0c\u628a\u5176\u4ed6\u7684\u903b\u8f91\u4ea4\u7ed9\u7ebf\u7a0b\u5f02\u6b65\u6267\u884c\uff0c\u8fd9\u6837\u6539\u9020\u4e4b\u540e\uff0c\u8ba9\u63a5\u53e3\u6027\u80fd\u77ac\u95f4\u63d0\u5347\u4e86\u3002<\/p>\n<p>\u4f46\u4f7f\u7528\u7ebf\u7a0b\u6c60\u6709\u4e2a\u5c0f\u95ee\u9898\u5c31\u662f\uff1a\u5982\u679c\u670d\u52a1\u5668\u91cd\u542f\u4e86\uff0c\u6216\u8005\u662f\u9700\u8981\u88ab\u6267\u884c\u7684\u529f\u80fd\u51fa\u73b0\u5f02\u5e38\u4e86\uff0c\u65e0\u6cd5\u91cd\u8bd5\uff0c\u4f1a\u4e22\u6570\u636e\u3002<\/p>\n<p>\u90a3\u4e48\u8fd9\u4e2a\u95ee\u9898\u8be5\u600e\u4e48\u529e\u5462\uff1f<\/p>\n<h3>5.2 mq<\/h3>\n<p>\u4f7f\u7528mq\u6539\u9020\u4e4b\u540e\uff0c\u63a5\u53e3\u903b\u8f91\u5982\u4e0b\uff1a<\/p>\n<p><img data-dominant-color=\"f1f1f1\" data-has-transparency=\"true\" style=\"--dominant-color: #f1f1f1;\" loading=\"lazy\" decoding=\"async\" class=\"has-transparency alignnone size-full wp-image-21210\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/1150d7525a93b06d37c38227fc7a7dbbdd5128.png\" width=\"1080\" height=\"621\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/1150d7525a93b06d37c38227fc7a7dbbdd5128.png 1080w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/1150d7525a93b06d37c38227fc7a7dbbdd5128-300x173.png 300w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/1150d7525a93b06d37c38227fc7a7dbbdd5128-1024x589.png 1024w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/1150d7525a93b06d37c38227fc7a7dbbdd5128-150x86.png 150w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/1150d7525a93b06d37c38227fc7a7dbbdd5128-768x442.png 768w\" sizes=\"auto, (max-width: 1080px) 100vw, 1080px\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u5bf9\u4e8e\u53d1\u7ad9\u5185\u901a\u77e5\u548c\u7528\u6237\u64cd\u4f5c\u65e5\u5fd7\u529f\u80fd\uff0c\u5728\u63a5\u53e3\u4e2d\u5e76\u6ca1\u771f\u6b63\u5b9e\u73b0\uff0c\u5b83\u53ea\u53d1\u9001\u4e86mq\u6d88\u606f\u5230mq\u670d\u52a1\u5668\u3002\u7136\u540e\u7531mq\u6d88\u8d39\u8005\u6d88\u8d39\u6d88\u606f\u65f6\uff0c\u624d\u771f\u6b63\u7684\u6267\u884c\u8fd9\u4e24\u4e2a\u529f\u80fd\u3002<\/p>\n<p>\u8fd9\u6837\u6539\u9020\u4e4b\u540e\uff0c\u63a5\u53e3\u6027\u80fd\u540c\u6837\u63d0\u5347\u4e86\uff0c\u56e0\u4e3a\u53d1\u9001mq\u6d88\u606f\u901f\u5ea6\u662f\u5f88\u5feb\u7684\uff0c\u6211\u4eec\u53ea\u9700\u5173\u6ce8\u4e1a\u52a1\u64cd\u4f5c\u7684\u4ee3\u7801\u5373\u53ef\u3002<\/p>\n<h2>6. \u907f\u514d\u5927\u4e8b\u52a1<\/h2>\n<p>\u5f88\u591a\u5c0f\u4f19\u4f34\u5728\u4f7f\u7528spring\u6846\u67b6\u5f00\u53d1\u9879\u76ee\u65f6\uff0c\u4e3a\u4e86\u65b9\u4fbf\uff0c\u559c\u6b22\u4f7f\u7528@Transactional\u6ce8\u89e3\u63d0\u4f9b\u4e8b\u52a1\u529f\u80fd\u3002<\/p>\n<p>\u6ca1\u9519\uff0c\u4f7f\u7528@Transactional\u6ce8\u89e3\u8fd9\u79cd\u58f0\u660e\u5f0f\u4e8b\u52a1\u7684\u65b9\u5f0f\u63d0\u4f9b\u4e8b\u52a1\u529f\u80fd\uff0c\u786e\u5b9e\u80fd\u5c11\u5199\u5f88\u591a\u4ee3\u7801\uff0c\u63d0\u5347\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<p>\u4f46\u4e5f\u5bb9\u6613\u9020\u6210\u5927\u4e8b\u52a1\uff0c\u5f15\u53d1\u5176\u4ed6\u7684\u95ee\u9898\u3002<\/p>\n<p>\u4e0b\u9762\u7528\u4e00\u5f20\u56fe\u770b\u770b\u5927\u4e8b\u52a1\u5f15\u53d1\u7684\u95ee\u9898\u3002<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s7.51cto.com\/oss\/202407\/17\/4955373794f7a4ba0a742144d75dc3e2fedfde.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u4ece\u56fe\u4e2d\u80fd\u591f\u770b\u51fa\uff0c\u5927\u4e8b\u52a1\u95ee\u9898\u53ef\u80fd\u4f1a\u9020\u6210\u63a5\u53e3\u8d85\u65f6\uff0c\u5bf9\u63a5\u53e3\u7684\u6027\u80fd\u6709\u76f4\u63a5\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u6211\u4eec\u8be5\u5982\u4f55\u4f18\u5316\u5927\u4e8b\u52a1\u5462\uff1f<\/p>\n<ol class=\"list-paddingleft-1\" data-id=\"odd3d8fc-0DjNZfP7\">\n<li data-id=\"ld70c578-AYnBX8kl\">\u5c11\u7528@Transactional\u6ce8\u89e3<\/li>\n<li data-id=\"ld70c578-oVWT3F92\">\u5c06\u67e5\u8be2(select)\u65b9\u6cd5\u653e\u5230\u4e8b\u52a1\u5916<\/li>\n<li data-id=\"ld70c578-nQqLdrTE\">\u4e8b\u52a1\u4e2d\u907f\u514d\u8fdc\u7a0b\u8c03\u7528<\/li>\n<li data-id=\"ld70c578-4c9CeMY9\">\u4e8b\u52a1\u4e2d\u907f\u514d\u4e00\u6b21\u6027\u5904\u7406\u592a\u591a\u6570\u636e<\/li>\n<li data-id=\"ld70c578-Z9gUUsWa\">\u6709\u4e9b\u529f\u80fd\u53ef\u4ee5\u975e\u4e8b\u52a1\u6267\u884c<\/li>\n<li data-id=\"ld70c578-V65o1MAl\">\u6709\u4e9b\u529f\u80fd\u53ef\u4ee5\u5f02\u6b65\u5904\u7406<\/li>\n<\/ol>\n<p>\u5173\u4e8e\u5927\u4e8b\u52a1\u95ee\u9898\u6211\u7684\u53e6\u4e00\u7bc7\u6587\u7ae0\u300a\u8ba9\u4eba\u5934\u75db\u7684\u5927\u4e8b\u52a1\u95ee\u9898\u5230\u5e95\u8981\u5982\u4f55\u89e3\u51b3\uff1f\u300b\uff0c\u5b83\u91cc\u9762\u505a\u4e86\u975e\u5e38\u8be6\u7ec6\u7684\u4ecb\u7ecd\uff0c\u5982\u679c\u5927\u5bb6\u611f\u5174\u8da3\u53ef\u4ee5\u770b\u770b\u3002<\/p>\n<h2>7. \u9501\u7c92\u5ea6<\/h2>\n<p>\u5728\u67d0\u4e9b\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u4e3a\u4e86\u9632\u6b62\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u4fee\u6539\u67d0\u4e2a\u5171\u4eab\u6570\u636e\uff0c\u9020\u6210\u6570\u636e\u5f02\u5e38\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u5e76\u53d1\u573a\u666f\u4e0b\uff0c\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u4fee\u6539\u6570\u636e\uff0c\u9020\u6210\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u60c5\u51b5\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4f1a\uff1a\u52a0\u9501\u3002<\/p>\n<p>\u4f46\u5982\u679c\u9501\u52a0\u5f97\u4e0d\u597d\uff0c\u5bfc\u81f4\u9501\u7684\u7c92\u5ea6\u592a\u7c97\uff0c\u4e5f\u4f1a\u975e\u5e38\u5f71\u54cd\u63a5\u53e3\u6027\u80fd\u3002<\/p>\n<h3>7.1 synchronized<\/h3>\n<p>\u5728java\u4e2d\u63d0\u4f9b\u4e86synchronized\u5173\u952e\u5b57\u7ed9\u6211\u4eec\u7684\u4ee3\u7801\u52a0\u9501\u3002<\/p>\n<p>\u901a\u5e38\u6709\u4e24\u79cd\u5199\u6cd5\uff1a\u5728\u65b9\u6cd5\u4e0a\u52a0\u9501\u00a0\u548c\u00a0\u5728\u4ee3\u7801\u5757\u4e0a\u52a0\u9501\u3002<\/p>\n<p>\u5148\u770b\u770b\u5982\u4f55\u5728\u65b9\u6cd5\u4e0a\u52a0\u9501\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_12\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">public<\/span> synchronized doSave<span class=\"token punctuation\">(<\/span>String fileUrl<span class=\"token punctuation\">)<\/span> {\r\n    mkdir<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    uploadFile<span class=\"token punctuation\">(<\/span>fileUrl<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    sendMessage<span class=\"token punctuation\">(<\/span>fileUrl<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_12\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8fd9\u91cc\u52a0\u9501\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u9632\u6b62\u5e76\u53d1\u7684\u60c5\u51b5\u4e0b\uff0c\u521b\u5efa\u4e86\u76f8\u540c\u7684\u76ee\u5f55\uff0c\u7b2c\u4e8c\u6b21\u4f1a\u521b\u5efa\u5931\u8d25\uff0c\u5f71\u54cd\u4e1a\u52a1\u529f\u80fd\u3002<\/p>\n<p>\u4f46\u8fd9\u79cd\u76f4\u63a5\u5728\u65b9\u6cd5\u4e0a\u52a0\u9501\uff0c\u9501\u7684\u7c92\u5ea6\u6709\u70b9\u7c97\u3002\u56e0\u4e3adoSave\u65b9\u6cd5\u4e2d\u7684\u4e0a\u4f20\u6587\u4ef6\u548c\u53d1\u6d88\u606f\u65b9\u6cd5\uff0c\u662f\u4e0d\u9700\u8981\u52a0\u9501\u7684\u3002\u53ea\u6709\u521b\u5efa\u76ee\u5f55\u65b9\u6cd5\uff0c\u624d\u9700\u8981\u52a0\u9501\u3002<\/p>\n<p>\u6211\u4eec\u90fd\u77e5\u9053\u6587\u4ef6\u4e0a\u4f20\u64cd\u4f5c\u662f\u975e\u5e38\u8017\u65f6\u7684\uff0c\u5982\u679c\u5c06\u6574\u4e2a\u65b9\u6cd5\u52a0\u9501\uff0c\u90a3\u4e48\u9700\u8981\u7b49\u5230\u6574\u4e2a\u65b9\u6cd5\u6267\u884c\u5b8c\u4e4b\u540e\u624d\u80fd\u91ca\u653e\u9501\u3002\u663e\u7136\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u8be5\u65b9\u6cd5\u7684\u6027\u80fd\u5f88\u5dee\uff0c\u53d8\u5f97\u5f97\u4e0d\u507f\u5931\u3002<\/p>\n<p>\u8fd9\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u6539\u6210\u5728\u4ee3\u7801\u5757\u4e0a\u52a0\u9501\u4e86\uff0c\u5177\u4f53\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_13\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">public<\/span> void doSave<span class=\"token punctuation\">(<\/span>String path<span class=\"token punctuation\">,<\/span>String fileUrl<span class=\"token punctuation\">)<\/span> {\r\n    synchronized<span class=\"token punctuation\">(<\/span>this<span class=\"token punctuation\">)<\/span> {\r\n      <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">exists<\/span><span class=\"token punctuation\">(<\/span>path<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n          mkdir<span class=\"token punctuation\">(<\/span>path<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n       }\r\n    }\r\n    uploadFile<span class=\"token punctuation\">(<\/span>fileUrl<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    sendMessage<span class=\"token punctuation\">(<\/span>fileUrl<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_13\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8fd9\u6837\u6539\u9020\u4e4b\u540e\uff0c\u9501\u7684\u7c92\u5ea6\u4e00\u4e0b\u5b50\u53d8\u5c0f\u4e86\uff0c\u53ea\u6709\u5e76\u53d1\u521b\u5efa\u76ee\u5f55\u529f\u80fd\u624d\u52a0\u4e86\u9501\u3002\u800c\u521b\u5efa\u76ee\u5f55\u662f\u4e00\u4e2a\u975e\u5e38\u5feb\u7684\u64cd\u4f5c\uff0c\u5373\u4f7f\u52a0\u9501\u5bf9\u63a5\u53e3\u7684\u6027\u80fd\u5f71\u54cd\u4e5f\u4e0d\u5927\u3002<\/p>\n<p>\u6700\u91cd\u8981\u7684\u662f\uff0c\u5176\u4ed6\u7684\u4e0a\u4f20\u6587\u4ef6\u548c\u53d1\u9001\u6d88\u606f\u529f\u80fd\uff0c\u4efb\u7136\u53ef\u4ee5\u5e76\u53d1\u6267\u884c\u3002<\/p>\n<p>\u5f53\u7136\uff0c\u8fd9\u79cd\u505a\u5728\u5355\u673a\u7248\u7684\u670d\u52a1\u4e2d\uff0c\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002\u4f46\u73b0\u5728\u90e8\u7f72\u7684\u751f\u4ea7\u73af\u5883\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u670d\u52a1\u7684\u7a33\u5b9a\u6027\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u540c\u4e00\u4e2a\u670d\u52a1\u4f1a\u88ab\u90e8\u7f72\u5728\u591a\u4e2a\u8282\u70b9\u4e2d\u3002\u5982\u679c\u54ea\u5929\u6302\u4e86\u4e00\u4e2a\u8282\u70b9\uff0c\u5176\u4ed6\u7684\u8282\u70b9\u670d\u52a1\u4efb\u7136\u53ef\u7528\u3002<\/p>\n<p>\u591a\u8282\u70b9\u90e8\u7f72\u907f\u514d\u4e86\u56e0\u4e3a\u67d0\u4e2a\u8282\u70b9\u6302\u4e86\uff0c\u5bfc\u81f4\u670d\u52a1\u4e0d\u53ef\u7528\u7684\u60c5\u51b5\u3002\u540c\u65f6\u4e5f\u80fd\u5206\u644a\u6574\u4e2a\u7cfb\u7edf\u7684\u6d41\u91cf\uff0c\u907f\u514d\u7cfb\u7edf\u538b\u529b\u8fc7\u5927\u3002<\/p>\n<p>\u540c\u65f6\u5b83\u4e5f\u5e26\u6765\u4e86\u65b0\u7684\u95ee\u9898\uff1asynchronized\u53ea\u80fd\u4fdd\u8bc1\u4e00\u4e2a\u8282\u70b9\u52a0\u9501\u662f\u6709\u6548\u7684\uff0c\u4f46\u5982\u679c\u6709\u591a\u4e2a\u8282\u70b9\u5982\u4f55\u52a0\u9501\u5462?<\/p>\n<p>\u7b54\uff1a\u8fd9\u5c31\u9700\u8981\u4f7f\u7528\uff1a\u5206\u5e03\u5f0f\u9501\u4e86\u3002\u76ee\u524d\u4e3b\u6d41\u7684\u5206\u5e03\u5f0f\u9501\u5305\u62ec\uff1aredis\u5206\u5e03\u5f0f\u9501\u3001zookeeper\u5206\u5e03\u5f0f\u9501 \u548c \u6570\u636e\u5e93\u5206\u5e03\u5f0f\u9501\u3002<\/p>\n<p>\u7531\u4e8ezookeeper\u5206\u5e03\u5f0f\u9501\u7684\u6027\u80fd\u4e0d\u592a\u597d\uff0c\u771f\u5b9e\u4e1a\u52a1\u573a\u666f\u7528\u7684\u4e0d\u591a\uff0c\u8fd9\u91cc\u5148\u4e0d\u8bb2\u3002<\/p>\n<p>\u4e0b\u9762\u804a\u4e00\u4e0bredis\u5206\u5e03\u5f0f\u9501\u3002<\/p>\n<h3>7.2 redis\u5206\u5e03\u5f0f\u9501<\/h3>\n<p>\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u7531\u4e8eredis\u5206\u5e03\u5f0f\u9501\u76f8\u5bf9\u4e8e\u66f4\u7b80\u5355\u548c\u9ad8\u6548\uff0c\u6210\u4e3a\u4e86\u5206\u5e03\u5f0f\u9501\u7684\u9996\u5148\uff0c\u88ab\u6211\u4eec\u7528\u5230\u4e86\u5f88\u591a\u5b9e\u9645\u4e1a\u52a1\u573a\u666f\u5f53\u4e2d\u3002<\/p>\n<p>\u4f7f\u7528redis\u5206\u5e03\u5f0f\u9501\u7684\u4f2a\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_14\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">public<\/span> void doSave<span class=\"token punctuation\">(<\/span>String path<span class=\"token punctuation\">,<\/span>String fileUrl<span class=\"token punctuation\">)<\/span> {\r\n  try {\r\n    String result <span class=\"token operator\">=<\/span> jedis<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">set<\/span><span class=\"token punctuation\">(<\/span>lockKey<span class=\"token punctuation\">,<\/span> requestId<span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"NX\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"PX\"<\/span><span class=\"token punctuation\">,<\/span> expireTime<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"OK\"<\/span><span class=\"token punctuation\">.<\/span>equals<span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n      <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token keyword\">exists<\/span><span class=\"token punctuation\">(<\/span>path<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n         mkdir<span class=\"token punctuation\">(<\/span>path<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n         uploadFile<span class=\"token punctuation\">(<\/span>fileUrl<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n         sendMessage<span class=\"token punctuation\">(<\/span>fileUrl<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      }\r\n      <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n  } finally{\r\n      <span class=\"token keyword\">unlock<\/span><span class=\"token punctuation\">(<\/span>lockKey<span class=\"token punctuation\">,<\/span>requestId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  }  \r\n  <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_14\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8ddf\u4e4b\u524d\u4f7f\u7528synchronized\u5173\u952e\u5b57\u52a0\u9501\u65f6\u4e00\u6837\uff0c\u8fd9\u91cc\u9501\u7684\u8303\u56f4\u4e5f\u592a\u5927\u4e86\uff0c\u6362\u53e5\u8bdd\u8bf4\u5c31\u662f\u9501\u7684\u7c92\u5ea6\u592a\u7c97\uff0c\u8fd9\u6837\u4f1a\u5bfc\u81f4\u6574\u4e2a\u65b9\u6cd5\u7684\u6267\u884c\u6548\u7387\u5f88\u4f4e\u3002<\/p>\n<p>\u5176\u5b9e\u53ea\u6709\u521b\u5efa\u76ee\u5f55\u7684\u65f6\u5019\uff0c\u624d\u9700\u8981\u52a0\u5206\u5e03\u5f0f\u9501\uff0c\u5176\u4f59\u4ee3\u7801\u6839\u672c\u4e0d\u7528\u52a0\u9501\u3002<\/p>\n<p>\u4e8e\u662f\uff0c\u6211\u4eec\u9700\u8981\u4f18\u5316\u4e00\u4e0b\u4ee3\u7801\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_15\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">public<\/span> void doSave<span class=\"token punctuation\">(<\/span>String path<span class=\"token punctuation\">,<\/span>String fileUrl<span class=\"token punctuation\">)<\/span> {\r\n   <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>this<span class=\"token punctuation\">.<\/span>tryLock<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n      mkdir<span class=\"token punctuation\">(<\/span>path<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n   }\r\n   uploadFile<span class=\"token punctuation\">(<\/span>fileUrl<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n   sendMessage<span class=\"token punctuation\">(<\/span>fileUrl<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}\r\n\r\nprivate <span class=\"token keyword\">boolean<\/span> tryLock<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n    try {\r\n    String result <span class=\"token operator\">=<\/span> jedis<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">set<\/span><span class=\"token punctuation\">(<\/span>lockKey<span class=\"token punctuation\">,<\/span> requestId<span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"NX\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"PX\"<\/span><span class=\"token punctuation\">,<\/span> expireTime<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"OK\"<\/span><span class=\"token punctuation\">.<\/span>equals<span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n      <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n  } finally{\r\n      <span class=\"token keyword\">unlock<\/span><span class=\"token punctuation\">(<\/span>lockKey<span class=\"token punctuation\">,<\/span>requestId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  }  \r\n  <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_15\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<li>18.<\/li>\n<li>19.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u4e0a\u9762\u4ee3\u7801\u5c06\u52a0\u9501\u7684\u8303\u56f4\u7f29\u5c0f\u4e86\uff0c\u53ea\u6709\u521b\u5efa\u76ee\u5f55\u65f6\u624d\u52a0\u4e86\u9501\u3002\u8fd9\u6837\u770b\u4f3c\u7b80\u5355\u7684\u4f18\u5316\u4e4b\u540e\uff0c\u63a5\u53e3\u6027\u80fd\u80fd\u63d0\u5347\u5f88\u591a\u3002\u8bf4\u4e0d\u5b9a\uff0c\u4f1a\u6709\u610f\u5916\u7684\u60ca\u559c\u5594\u3002\u54c8\u54c8\u54c8\u3002<\/p>\n<p>redis\u5206\u5e03\u5f0f\u9501\u867d\u8bf4\u597d\u7528\uff0c\u4f46\u5b83\u5728\u4f7f\u7528\u65f6\uff0c\u6709\u5f88\u591a\u6ce8\u610f\u7684\u7ec6\u8282\uff0c\u9690\u85cf\u4e86\u5f88\u591a\u5751\uff0c\u5982\u679c\u7a0d\u4e0d\u6ce8\u610f\u5f88\u5bb9\u6613\u8e29\u4e2d\u3002\u8be6\u7ec6\u5185\u5bb9\u53ef\u4ee5\u770b\u770b\u6211\u7684\u53e6\u4e00\u7bc7\u6587\u7ae0\u300a\u804a\u804aredis\u5206\u5e03\u5f0f\u9501\u76848\u5927\u5751\u300b<\/p>\n<h3>7.3 \u6570\u636e\u5e93\u5206\u5e03\u5f0f\u9501<\/h3>\n<p>mysql\u6570\u636e\u5e93\u4e2d\u4e3b\u8981\u6709\u4e09\u79cd\u9501\uff1a<\/p>\n<ul data-id=\"u738a58b-3GB9C0Wb\">\n<li data-id=\"ld70c578-AYK3oL9j\">\u8868\u9501\uff1a\u52a0\u9501\u5feb\uff0c\u4e0d\u4f1a\u51fa\u73b0\u6b7b\u9501\u3002\u4f46\u9501\u5b9a\u7c92\u5ea6\u5927\uff0c\u53d1\u751f\u9501\u51b2\u7a81\u7684\u6982\u7387\u6700\u9ad8\uff0c\u5e76\u53d1\u5ea6\u6700\u4f4e\u3002<\/li>\n<li data-id=\"ld70c578-TjCs7mtJ\">\u884c\u9501\uff1a\u52a0\u9501\u6162\uff0c\u4f1a\u51fa\u73b0\u6b7b\u9501\u3002\u4f46\u9501\u5b9a\u7c92\u5ea6\u6700\u5c0f\uff0c\u53d1\u751f\u9501\u51b2\u7a81\u7684\u6982\u7387\u6700\u4f4e\uff0c\u5e76\u53d1\u5ea6\u4e5f\u6700\u9ad8\u3002<\/li>\n<li data-id=\"ld70c578-rt8IlCJV\">\u95f4\u9699\u9501\uff1a\u5f00\u9500\u548c\u52a0\u9501\u65f6\u95f4\u754c\u4e8e\u8868\u9501\u548c\u884c\u9501\u4e4b\u95f4\u3002\u5b83\u4f1a\u51fa\u73b0\u6b7b\u9501\uff0c\u9501\u5b9a\u7c92\u5ea6\u754c\u4e8e\u8868\u9501\u548c\u884c\u9501\u4e4b\u95f4\uff0c\u5e76\u53d1\u5ea6\u4e00\u822c\u3002<\/li>\n<\/ul>\n<p>\u5e76\u53d1\u5ea6\u8d8a\u9ad8\uff0c\u610f\u5473\u7740\u63a5\u53e3\u6027\u80fd\u8d8a\u597d\u3002<\/p>\n<p>\u6240\u4ee5\u6570\u636e\u5e93\u9501\u7684\u4f18\u5316\u65b9\u5411\u662f\uff1a<\/p>\n<p>\u4f18\u5148\u4f7f\u7528\u884c\u9501\uff0c\u5176\u6b21\u4f7f\u7528\u95f4\u9699\u9501\uff0c\u518d\u5176\u6b21\u4f7f\u7528\u8868\u9501\u3002<\/p>\n<p>\u8d76\u7d27\u770b\u770b\uff0c\u4f60\u7528\u5bf9\u4e86\u6ca1\uff1f<\/p>\n<h2>8.\u5206\u9875\u5904\u7406<\/h2>\n<p>\u6709\u65f6\u5019\u6211\u4f1a\u8c03\u7528\u67d0\u4e2a\u63a5\u53e3\u6279\u91cf\u67e5\u8be2\u6570\u636e\uff0c\u6bd4\u5982\uff1a\u901a\u8fc7\u7528\u6237id\u6279\u91cf\u67e5\u8be2\u51fa\u7528\u6237\u4fe1\u606f\uff0c\u7136\u540e\u7ed9\u8fd9\u4e9b\u7528\u6237\u9001\u79ef\u5206\u3002<\/p>\n<p>\u4f46\u5982\u679c\u4f60\u4e00\u6b21\u6027\u67e5\u8be2\u7684\u7528\u6237\u6570\u91cf\u592a\u591a\u4e86\uff0c\u6bd4\u5982\u4e00\u6b21\u67e5\u8be22000\u4e2a\u7528\u6237\u7684\u6570\u636e\u3002\u53c2\u6570\u4e2d\u4f20\u5165\u4e862000\u4e2a\u7528\u6237\u7684id\uff0c\u8fdc\u7a0b\u8c03\u7528\u63a5\u53e3\uff0c\u4f1a\u53d1\u73b0\u8be5\u7528\u6237\u67e5\u8be2\u63a5\u53e3\u7ecf\u5e38\u8d85\u65f6\u3002<\/p>\n<p>\u8c03\u7528\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_16\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\">List<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">User<\/span><span class=\"token operator\">&gt;<\/span> users <span class=\"token operator\">=<\/span> remoteCallUser<span class=\"token punctuation\">(<\/span>ids<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_16\" class=\"pre-numbering\">\n<li>1.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u4f17\u6240\u5468\u77e5\uff0c\u8c03\u7528\u63a5\u53e3\u4ece\u6570\u636e\u5e93\u83b7\u53d6\u6570\u636e\uff0c\u662f\u9700\u8981\u7ecf\u8fc7\u7f51\u7edc\u4f20\u8f93\u7684\u3002\u5982\u679c\u6570\u636e\u91cf\u592a\u5927\uff0c\u65e0\u8bba\u662f\u83b7\u53d6\u6570\u636e\u7684\u901f\u5ea6\uff0c\u8fd8\u662f\u7f51\u7edc\u4f20\u8f93\u53d7\u9650\u4e8e\u5e26\u5bbd\uff0c\u90fd\u4f1a\u5bfc\u81f4\u8017\u65f6\u65f6\u95f4\u6bd4\u8f83\u957f\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u8fd9\u79cd\u60c5\u51b5\u8981\u5982\u4f55\u4f18\u5316\u5462\uff1f<\/p>\n<p>\u7b54\uff1a\u5206\u9875\u5904\u7406\u3002<\/p>\n<p>\u5c06\u4e00\u6b21\u83b7\u53d6\u6240\u6709\u7684\u6570\u636e\u7684\u8bf7\u6c42\uff0c\u6539\u6210\u5206\u591a\u6b21\u83b7\u53d6\uff0c\u6bcf\u6b21\u53ea\u83b7\u53d6\u4e00\u90e8\u5206\u7528\u6237\u7684\u6570\u636e\uff0c\u6700\u540e\u8fdb\u884c\u5408\u5e76\u548c\u6c47\u603b\u3002<\/p>\n<p>\u5176\u5b9e\uff0c\u5904\u7406\u8fd9\u4e2a\u95ee\u9898\uff0c\u8981\u5206\u4e3a\u4e24\u79cd\u573a\u666f\uff1a\u540c\u6b65\u8c03\u7528\u00a0\u548c\u00a0\u5f02\u6b65\u8c03\u7528\u3002<\/p>\n<h3>8.1 \u540c\u6b65\u8c03\u7528<\/h3>\n<p>\u5982\u679c\u5728job\u4e2d\u9700\u8981\u83b7\u53d62000\u4e2a\u7528\u6237\u7684\u4fe1\u606f\uff0c\u5b83\u8981\u6c42\u53ea\u8981\u80fd\u6b63\u786e\u83b7\u53d6\u5230\u6570\u636e\u5c31\u597d\uff0c\u5bf9\u83b7\u53d6\u6570\u636e\u7684\u603b\u8017\u65f6\u8981\u6c42\u4e0d\u592a\u9ad8\u3002<\/p>\n<p>\u4f46\u5bf9\u6bcf\u4e00\u6b21\u8fdc\u7a0b\u63a5\u53e3\u8c03\u7528\u7684\u8017\u65f6\u6709\u8981\u6c42\uff0c\u4e0d\u80fd\u5927\u4e8e500ms\uff0c\u4e0d\u7136\u4f1a\u6709\u90ae\u4ef6\u9884\u8b66\u3002<\/p>\n<p>\u8fd9\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u540c\u6b65\u5206\u9875\u8c03\u7528\u6279\u91cf\u67e5\u8be2\u7528\u6237\u4fe1\u606f\u63a5\u53e3\u3002<\/p>\n<p>\u5177\u4f53\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_17\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\">List<span class=\"token operator\">&lt;<\/span>List<span class=\"token operator\">&lt;<\/span>Long<span class=\"token operator\">&gt;&gt;<\/span> allIds <span class=\"token operator\">=<\/span> Lists<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">partition<\/span><span class=\"token punctuation\">(<\/span>ids<span class=\"token punctuation\">,<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>List<span class=\"token operator\">&lt;<\/span>Long<span class=\"token operator\">&gt;<\/span> batchIds:allIds<span class=\"token punctuation\">)<\/span> {\r\n   List<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">User<\/span><span class=\"token operator\">&gt;<\/span> users <span class=\"token operator\">=<\/span> remoteCallUser<span class=\"token punctuation\">(<\/span>batchIds<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_17\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u4ee3\u7801\u4e2d\u6211\u7528\u7684google\u7684guava\u5de5\u5177\u4e2d\u7684Lists.partition\u65b9\u6cd5\uff0c\u7528\u5b83\u6765\u505a\u5206\u9875\u7b80\u76f4\u592a\u597d\u7528\u4e86\uff0c\u4e0d\u7136\u8981\u5df4\u62c9\u5df4\u62c9\u5199\u4e00\u5927\u5806\u5206\u9875\u7684\u4ee3\u7801\u3002<\/p>\n<h3>8.2 \u5f02\u6b65\u8c03\u7528<\/h3>\n<p>\u5982\u679c\u662f\u5728\u67d0\u4e2a\u63a5\u53e3\u4e2d\u9700\u8981\u83b7\u53d62000\u4e2a\u7528\u6237\u7684\u4fe1\u606f\uff0c\u5b83\u8003\u8651\u7684\u5c31\u9700\u8981\u66f4\u591a\u4e00\u4e9b\u3002<\/p>\n<p>\u9664\u4e86\u9700\u8981\u8003\u8651\u8fdc\u7a0b\u8c03\u7528\u63a5\u53e3\u7684\u8017\u65f6\u4e4b\u5916\uff0c\u8fd8\u9700\u8981\u8003\u8651\u8be5\u63a5\u53e3\u672c\u8eab\u7684\u603b\u8017\u65f6\uff0c\u4e5f\u4e0d\u80fd\u8d85\u65f6500ms\u3002<\/p>\n<p>\u8fd9\u65f6\u5019\u7528\u4e0a\u9762\u7684\u540c\u6b65\u5206\u9875\u8bf7\u6c42\u8fdc\u7a0b\u63a5\u53e3\uff0c\u80af\u5b9a\u662f\u884c\u4e0d\u901a\u7684\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u53ea\u80fd\u4f7f\u7528\u5f02\u6b65\u8c03\u7528\u4e86\u3002<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_18\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\">List<span class=\"token operator\">&lt;<\/span>List<span class=\"token operator\">&lt;<\/span>Long<span class=\"token operator\">&gt;&gt;<\/span> allIds <span class=\"token operator\">=<\/span> Lists<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">partition<\/span><span class=\"token punctuation\">(<\/span>ids<span class=\"token punctuation\">,<\/span><span class=\"token number\">200<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\nfinal List<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">User<\/span><span class=\"token operator\">&gt;<\/span> result <span class=\"token operator\">=<\/span> Lists<span class=\"token punctuation\">.<\/span>newArrayList<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\nallIds<span class=\"token punctuation\">.<\/span>stream<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>forEach<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>batchIds<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> {\r\n   CompletableFuture<span class=\"token punctuation\">.<\/span>supplyAsync<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> {\r\n        result<span class=\"token punctuation\">.<\/span>addAll<span class=\"token punctuation\">(<\/span>remoteCallUser<span class=\"token punctuation\">(<\/span>batchIds<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">Boolean<\/span><span class=\"token punctuation\">.<\/span><span class=\"token boolean\">TRUE<\/span><span class=\"token punctuation\">;<\/span>\r\n    }<span class=\"token punctuation\">,<\/span> executor<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}<span class=\"token punctuation\">)<\/span><\/code><\/pre>\n<ul id=\"code_id_18\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u4f7f\u7528CompletableFuture\u7c7b\uff0c\u591a\u4e2a\u7ebf\u7a0b\u5f02\u6b65\u8c03\u7528\u8fdc\u7a0b\u63a5\u53e3\uff0c\u6700\u540e\u6c47\u603b\u7ed3\u679c\u7edf\u4e00\u8fd4\u56de\u3002<\/p>\n<h2>9.\u52a0\u7f13\u5b58<\/h2>\n<p>\u89e3\u51b3\u63a5\u53e3\u6027\u80fd\u95ee\u9898\uff0c\u52a0\u7f13\u5b58\u662f\u4e00\u4e2a\u975e\u5e38\u9ad8\u6548\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u4f46\u4e0d\u80fd\u4e3a\u4e86\u7f13\u5b58\u800c\u7f13\u5b58\uff0c\u8fd8\u662f\u8981\u770b\u5177\u4f53\u7684\u4e1a\u52a1\u573a\u666f\u3002\u6bd5\u7adf\u52a0\u4e86\u7f13\u5b58\uff0c\u4f1a\u5bfc\u81f4\u63a5\u53e3\u7684\u590d\u6742\u5ea6\u589e\u52a0\uff0c\u5b83\u4f1a\u5e26\u6765\u6570\u636e\u4e0d\u4e00\u81f4\u95ee\u9898\u3002<\/p>\n<p>\u5728\u6709\u4e9b\u5e76\u53d1\u91cf\u6bd4\u8f83\u4f4e\u7684\u573a\u666f\u4e2d\uff0c\u6bd4\u5982\u7528\u6237\u4e0b\u5355\uff0c\u53ef\u4ee5\u4e0d\u7528\u52a0\u7f13\u5b58\u3002<\/p>\n<p>\u8fd8\u6709\u4e9b\u573a\u666f\uff0c\u6bd4\u5982\u5728\u5546\u57ce\u9996\u9875\u663e\u793a\u5546\u54c1\u5206\u7c7b\u7684\u5730\u65b9\uff0c\u5047\u8bbe\u8fd9\u91cc\u7684\u5206\u7c7b\u662f\u8c03\u7528\u63a5\u53e3\u83b7\u53d6\u5230\u7684\u6570\u636e\uff0c\u4f46\u9875\u9762\u6682\u65f6\u6ca1\u6709\u505a\u9759\u6001\u5316\u3002<\/p>\n<p>\u5982\u679c\u67e5\u8be2\u5206\u7c7b\u6811\u7684\u63a5\u53e3\u6ca1\u6709\u4f7f\u7528\u7f13\u5b58\uff0c\u800c\u76f4\u63a5\u4ece\u6570\u636e\u5e93\u67e5\u8be2\u6570\u636e\uff0c\u6027\u80fd\u4f1a\u975e\u5e38\u5dee\u3002<\/p>\n<p>\u90a3\u4e48\u5982\u4f55\u4f7f\u7528\u7f13\u5b58\u5462\uff1f<\/p>\n<h3>9.1 redis\u7f13\u5b58<\/h3>\n<p>\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u4f7f\u7528\u6700\u591a\u7684\u7f13\u5b58\u53ef\u80fd\u662f\uff1aredis\u548cmemcached\u3002<\/p>\n<p>\u4f46\u5bf9\u4e8ejava\u5e94\u7528\u6765\u8bf4\uff0c\u7edd\u5927\u591a\u6570\u90fd\u662f\u4f7f\u7528\u7684redis\uff0c\u6240\u4ee5\u63a5\u4e0b\u6765\u6211\u4eec\u4ee5redis\u4e3a\u4f8b\u3002<\/p>\n<p>\u7531\u4e8e\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u6bd4\u5982\uff1amysql\u4e2d\uff0c\u83dc\u5355\u662f\u6709\u4e0a\u4e0b\u7ea7\u5173\u7cfb\u7684\u3002\u67d0\u4e2a\u56db\u7ea7\u5206\u7c7b\u662f\u67d0\u4e2a\u4e09\u7ea7\u5206\u7c7b\u7684\u5b50\u5206\u7c7b\uff0c\u8fd9\u4e2a\u4e09\u7ea7\u5206\u7c7b\uff0c\u53c8\u662f\u67d0\u4e2a\u4e8c\u7ea7\u5206\u7c7b\u7684\u5b50\u5206\u7c7b\uff0c\u800c\u8fd9\u4e2a\u4e8c\u7ea7\u5206\u7c7b\uff0c\u53c8\u662f\u67d0\u4e2a\u4e00\u7ea7\u5206\u7c7b\u7684\u5b50\u5206\u7c7b\u3002<\/p>\n<p>\u8fd9\u79cd\u5b58\u50a8\u7ed3\u6784\u51b3\u5b9a\u4e86\uff0c\u60f3\u4e00\u6b21\u6027\u67e5\u51fa\u8fd9\u4e2a\u5206\u7c7b\u6811\uff0c\u5e76\u975e\u662f\u4e00\u4ef6\u975e\u5e38\u5bb9\u6613\u7684\u4e8b\u60c5\u3002\u8fd9\u5c31\u9700\u8981\u4f7f\u7528\u7a0b\u5e8f\u9012\u5f52\u67e5\u8be2\u4e86\uff0c\u5982\u679c\u5206\u7c7b\u591a\u7684\u8bdd\uff0c\u8fd9\u4e2a\u9012\u5f52\u662f\u6bd4\u8f83\u8017\u65f6\u7684\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u5982\u679c\u6bcf\u6b21\u90fd\u76f4\u63a5\u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u5206\u7c7b\u6811\u7684\u6570\u636e\uff0c\u662f\u4e00\u4e2a\u975e\u5e38\u8017\u65f6\u7684\u64cd\u4f5c\u3002<\/p>\n<p>\u8fd9\u65f6\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7f13\u5b58\uff0c\u5927\u90e8\u5206\u60c5\u51b5\uff0c\u63a5\u53e3\u90fd\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u6570\u636e\u3002\u64cd\u4f5credis\u53ef\u4ee5\u4f7f\u7528\u6210\u719f\u7684\u6846\u67b6\uff0c\u6bd4\u5982\uff1ajedis\u548credisson\u7b49\u3002<\/p>\n<p>\u7528jedis\u4f2a\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_19\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\">String json <span class=\"token operator\">=<\/span> jedis<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">key<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>StringUtils<span class=\"token punctuation\">.<\/span>isNotEmpty<span class=\"token punctuation\">(<\/span>json<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n   CategoryTree categoryTree <span class=\"token operator\">=<\/span> JsonUtil<span class=\"token punctuation\">.<\/span>toObject<span class=\"token punctuation\">(<\/span>json<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n   <span class=\"token keyword\">return<\/span> categoryTree<span class=\"token punctuation\">;<\/span>\r\n}\r\n<span class=\"token keyword\">return<\/span> queryCategoryTreeFromDb<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_19\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5148\u4eceredis\u4e2d\u6839\u636e\u67d0\u4e2akey\u67e5\u8be2\u662f\u5426\u6709\u83dc\u5355\u6570\u636e\uff0c\u5982\u679c\u6709\u5219\u8f6c\u6362\u6210\u5bf9\u8c61\uff0c\u76f4\u63a5\u8fd4\u56de\u3002\u5982\u679credis\u4e2d\u6ca1\u6709\u67e5\u5230\u83dc\u5355\u6570\u636e\uff0c\u5219\u518d\u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u83dc\u5355\u6570\u636e\uff0c\u6709\u5219\u8fd4\u56de\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u6709\u4e2ajob\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\uff0c\u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u83dc\u5355\u6570\u636e\uff0c\u66f4\u65b0\u5230redis\u5f53\u4e2d\uff0c\u8fd9\u6837\u4ee5\u540e\u6bcf\u6b21\u90fd\u80fd\u76f4\u63a5\u4eceredis\u4e2d\u83b7\u53d6\u83dc\u5355\u7684\u6570\u636e\uff0c\u800c\u65e0\u9700\u8bbf\u95ee\u6570\u636e\u5e93\u4e86\u3002<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s8.51cto.com\/oss\/202407\/17\/f61329538086a0302611707e08d9081b0a540e.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u8fd9\u6837\u6539\u9020\u4e4b\u540e\uff0c\u80fd\u5feb\u901f\u7684\u63d0\u5347\u6027\u80fd\u3002<\/p>\n<p>\u4f46\u8fd9\u6837\u505a\u6027\u80fd\u63d0\u5347\u4e0d\u662f\u6700\u4f73\u7684\uff0c\u8fd8\u6709\u5176\u4ed6\u7684\u65b9\u6848\uff0c\u6211\u4eec\u4e00\u8d77\u770b\u770b\u4e0b\u9762\u7684\u5185\u5bb9\u3002<\/p>\n<h3>9.2 \u4e8c\u7ea7\u7f13\u5b58<\/h3>\n<p>\u4e0a\u9762\u7684\u65b9\u6848\u662f\u57fa\u4e8eredis\u7f13\u5b58\u7684\uff0c\u867d\u8bf4redis\u8bbf\u95ee\u901f\u5ea6\u5f88\u5feb\u3002\u4f46\u6bd5\u7adf\u662f\u4e00\u4e2a\u8fdc\u7a0b\u8c03\u7528\uff0c\u800c\u4e14\u83dc\u5355\u6811\u7684\u6570\u636e\u5f88\u591a\uff0c\u5728\u7f51\u7edc\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e2d\uff0c\u662f\u6709\u4e9b\u8017\u65f6\u7684\u3002<\/p>\n<p>\u6709\u6ca1\u6709\u529e\u6cd5\uff0c\u4e0d\u7ecf\u8fc7\u8bf7\u6c42\u8fdc\u7a0b\uff0c\u5c31\u80fd\u76f4\u63a5\u83b7\u53d6\u5230\u6570\u636e\u5462\uff1f<\/p>\n<p>\u7b54\uff1a\u4f7f\u7528\u4e8c\u7ea7\u7f13\u5b58\uff0c\u5373\u57fa\u4e8e\u5185\u5b58\u7684\u7f13\u5b58\u3002<\/p>\n<p>\u9664\u4e86\u81ea\u5df1\u624b\u5199\u7684\u5185\u5b58\u7f13\u5b58\u4e4b\u540e\uff0c\u76ee\u524d\u4f7f\u7528\u6bd4\u8f83\u591a\u7684\u5185\u5b58\u7f13\u5b58\u6846\u67b6\u6709\uff1aguava\u3001Ehcache\u3001caffine\u7b49\u3002<\/p>\n<p>\u6211\u4eec\u5728\u8fd9\u91cc\u4ee5caffeine\u4e3a\u4f8b\uff0c\u5b83\u662fspring\u5b98\u65b9\u63a8\u8350\u7684\u3002<\/p>\n<p>\u7b2c\u4e00\u6b65\uff0c\u5f15\u5165caffeine\u7684\u76f8\u5173jar\u5305<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_20\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token operator\">&lt;<\/span>dependency<span class=\"token operator\">&gt;<\/span>\r\n    <span class=\"token operator\">&lt;<\/span>groupId<span class=\"token operator\">&gt;<\/span>org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>boot<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>groupId<span class=\"token operator\">&gt;<\/span>\r\n    <span class=\"token operator\">&lt;<\/span>artifactId<span class=\"token operator\">&gt;<\/span>spring<span class=\"token operator\">-<\/span>boot<span class=\"token operator\">-<\/span>starter<span class=\"token operator\">-<\/span>cache<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>artifactId<span class=\"token operator\">&gt;<\/span>\r\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>dependency<span class=\"token operator\">&gt;<\/span>\r\n<span class=\"token operator\">&lt;<\/span>dependency<span class=\"token operator\">&gt;<\/span>\r\n    <span class=\"token operator\">&lt;<\/span>groupId<span class=\"token operator\">&gt;<\/span>com<span class=\"token punctuation\">.<\/span>github<span class=\"token punctuation\">.<\/span>ben<span class=\"token operator\">-<\/span>manes<span class=\"token punctuation\">.<\/span>caffeine<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>groupId<span class=\"token operator\">&gt;<\/span>\r\n    <span class=\"token operator\">&lt;<\/span>artifactId<span class=\"token operator\">&gt;<\/span>caffeine<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>artifactId<span class=\"token operator\">&gt;<\/span>\r\n    <span class=\"token operator\">&lt;<\/span>version<span class=\"token operator\">&gt;<\/span><span class=\"token number\">2.6<\/span><span class=\"token number\">.0<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>version<span class=\"token operator\">&gt;<\/span>\r\n<span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>dependency<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<ul id=\"code_id_20\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u7b2c\u4e8c\u6b65\uff0c\u914d\u7f6eCacheManager\uff0c\u5f00\u542fEnableCaching<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_21\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token variable\">@Configuration<\/span>\r\n<span class=\"token variable\">@EnableCaching<\/span>\r\n<span class=\"token keyword\">public<\/span> class CacheConfig {\r\n    <span class=\"token variable\">@Bean<\/span>\r\n    <span class=\"token keyword\">public<\/span> CacheManager cacheManager<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>{\r\n        CaffeineCacheManager cacheManager <span class=\"token operator\">=<\/span> new CaffeineCacheManager<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token comment\">\/\/Caffeine\u914d\u7f6e<\/span>\r\n        Caffeine<span class=\"token operator\">&lt;<\/span>Object<span class=\"token punctuation\">,<\/span> Object<span class=\"token operator\">&gt;<\/span> caffeine <span class=\"token operator\">=<\/span> Caffeine<span class=\"token punctuation\">.<\/span>newBuilder<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n                <span class=\"token comment\">\/\/\u6700\u540e\u4e00\u6b21\u5199\u5165\u540e\u7ecf\u8fc7\u56fa\u5b9a\u65f6\u95f4\u8fc7\u671f<\/span>\r\n                <span class=\"token punctuation\">.<\/span>expireAfterWrite<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> TimeUnit<span class=\"token punctuation\">.<\/span>SECONDS<span class=\"token punctuation\">)<\/span>\r\n                <span class=\"token comment\">\/\/\u7f13\u5b58\u7684\u6700\u5927\u6761\u6570<\/span>\r\n                <span class=\"token punctuation\">.<\/span>maximumSize<span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        cacheManager<span class=\"token punctuation\">.<\/span>setCaffeine<span class=\"token punctuation\">(<\/span>caffeine<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token keyword\">return<\/span> cacheManager<span class=\"token punctuation\">;<\/span>\r\n    }\r\n}<\/code><\/pre>\n<ul id=\"code_id_21\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u7b2c\u4e09\u6b65\uff0c\u4f7f\u7528Cacheable\u6ce8\u89e3\u83b7\u53d6\u6570\u636e<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_22\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token variable\">@Service<\/span>\r\n<span class=\"token keyword\">public<\/span> class CategoryService {\r\n   \r\n   <span class=\"token variable\">@Cacheable<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">value<\/span> <span class=\"token operator\">=<\/span> <span class=\"token string\">\"category\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">key<\/span> <span class=\"token operator\">=<\/span> <span class=\"token string\">\"#categoryKey\"<\/span><span class=\"token punctuation\">)<\/span>\r\n   <span class=\"token keyword\">public<\/span> CategoryModel getCategory<span class=\"token punctuation\">(<\/span>String categoryKey<span class=\"token punctuation\">)<\/span> {\r\n      String json <span class=\"token operator\">=<\/span> jedis<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span>categoryKey<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>StringUtils<span class=\"token punctuation\">.<\/span>isNotEmpty<span class=\"token punctuation\">(<\/span>json<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n         CategoryTree categoryTree <span class=\"token operator\">=<\/span> JsonUtil<span class=\"token punctuation\">.<\/span>toObject<span class=\"token punctuation\">(<\/span>json<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n         <span class=\"token keyword\">return<\/span> categoryTree<span class=\"token punctuation\">;<\/span>\r\n      }\r\n      <span class=\"token keyword\">return<\/span> queryCategoryTreeFromDb<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n   }\r\n}<\/code><\/pre>\n<ul id=\"code_id_22\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<li>5.<\/li>\n<li>6.<\/li>\n<li>7.<\/li>\n<li>8.<\/li>\n<li>9.<\/li>\n<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8c03\u7528categoryService.getCategory()\u65b9\u6cd5\u65f6\uff0c\u5148\u4ececaffine\u7f13\u5b58\u4e2d\u83b7\u53d6\u6570\u636e\uff0c\u5982\u679c\u80fd\u591f\u83b7\u53d6\u5230\u6570\u636e\uff0c\u5219\u76f4\u63a5\u8fd4\u56de\u8be5\u6570\u636e\uff0c\u4e0d\u8fdb\u5165\u65b9\u6cd5\u4f53\u3002<\/p>\n<p>\u5982\u679c\u4e0d\u80fd\u83b7\u53d6\u5230\u6570\u636e\uff0c\u5219\u518d\u4eceredis\u4e2d\u67e5\u4e00\u6b21\u6570\u636e\u3002\u5982\u679c\u67e5\u8be2\u5230\u4e86\uff0c\u5219\u8fd4\u56de\u6570\u636e\uff0c\u5e76\u4e14\u653e\u5165caffine\u4e2d\u3002<\/p>\n<p>\u5982\u679c\u8fd8\u662f\u6ca1\u6709\u67e5\u5230\u6570\u636e\uff0c\u5219\u76f4\u63a5\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u5230\u6570\u636e\uff0c\u7136\u540e\u653e\u5230caffine\u7f13\u5b58\u4e2d\u3002<\/p>\n<p>\u5177\u4f53\u6d41\u7a0b\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s2.51cto.com\/oss\/202407\/17\/68b0f7742a61023384d2538bc07bae3b50bc0f.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u8be5\u65b9\u6848\u7684\u6027\u80fd\u66f4\u597d\uff0c\u4f46\u6709\u4e2a\u7f3a\u70b9\u5c31\u662f\uff0c\u5982\u679c\u6570\u636e\u66f4\u65b0\u4e86\uff0c\u4e0d\u80fd\u53ca\u65f6\u5237\u65b0\u7f13\u5b58\u3002\u6b64\u5916\uff0c\u5982\u679c\u6709\u591a\u53f0\u670d\u52a1\u5668\u8282\u70b9\uff0c\u53ef\u80fd\u5b58\u5728\u5404\u4e2a\u8282\u70b9\u4e0a\u6570\u636e\u4e0d\u4e00\u6837\u7684\u60c5\u51b5\u3002<\/p>\n<p>\u7531\u6b64\u53ef\u89c1\uff0c\u4e8c\u7ea7\u7f13\u5b58\u7ed9\u6211\u4eec\u5e26\u6765\u6027\u80fd\u63d0\u5347\u7684\u540c\u65f6\uff0c\u4e5f\u5e26\u6765\u4e86\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u95ee\u9898\u3002\u4f7f\u7528\u4e8c\u7ea7\u7f13\u5b58\u4e00\u5b9a\u8981\u7ed3\u5408\u5b9e\u9645\u7684\u4e1a\u52a1\u573a\u666f\uff0c\u5e76\u975e\u6240\u6709\u7684\u4e1a\u52a1\u573a\u666f\u90fd\u9002\u7528\u3002<\/p>\n<p>\u4f46\u4e0a\u9762\u6211\u5217\u4e3e\u7684\u5206\u7c7b\u573a\u666f\uff0c\u662f\u9002\u5408\u4f7f\u7528\u4e8c\u7ea7\u7f13\u5b58\u7684\u3002\u56e0\u4e3a\u5b83\u5c5e\u4e8e\u7528\u6237\u4e0d\u654f\u611f\u6570\u636e\uff0c\u5373\u4f7f\u51fa\u73b0\u4e86\u7a0d\u5fae\u6709\u70b9\u6570\u636e\u4e0d\u4e00\u81f4\u4e5f\u6ca1\u6709\u5173\u7cfb\uff0c\u7528\u6237\u6709\u53ef\u80fd\u90fd\u6ca1\u6709\u5bdf\u89c9\u51fa\u6765\u3002<\/p>\n<h2>10. \u5206\u5e93\u5206\u8868<\/h2>\n<p>\u6709\u65f6\u5019\uff0c\u63a5\u53e3\u6027\u80fd\u53d7\u9650\u7684\u4e0d\u662f\u522b\u7684\uff0c\u800c\u662f\u6570\u636e\u5e93\u3002<\/p>\n<p>\u5f53\u7cfb\u7edf\u53d1\u5c55\u5230\u4e00\u5b9a\u7684\u9636\u6bb5\uff0c\u7528\u6237\u5e76\u53d1\u91cf\u5927\uff0c\u4f1a\u6709\u5927\u91cf\u7684\u6570\u636e\u5e93\u8bf7\u6c42\uff0c\u9700\u8981\u5360\u7528\u5927\u91cf\u7684\u6570\u636e\u5e93\u8fde\u63a5\uff0c\u540c\u65f6\u4f1a\u5e26\u6765\u78c1\u76d8IO\u7684\u6027\u80fd\u74f6\u9888\u95ee\u9898\u3002<\/p>\n<p>\u6b64\u5916\uff0c\u968f\u7740\u7528\u6237\u6570\u91cf\u8d8a\u6765\u8d8a\u591a\uff0c\u4ea7\u751f\u7684\u6570\u636e\u4e5f\u8d8a\u6765\u8d8a\u591a\uff0c\u4e00\u5f20\u8868\u6709\u53ef\u80fd\u5b58\u4e0d\u4e0b\u3002\u7531\u4e8e\u6570\u636e\u91cf\u592a\u5927\uff0csql\u8bed\u53e5\u67e5\u8be2\u6570\u636e\u65f6\uff0c\u5373\u4f7f\u8d70\u4e86\u7d22\u5f15\u4e5f\u4f1a\u975e\u5e38\u8017\u65f6\u3002<\/p>\n<p>\u8fd9\u65f6\u8be5\u600e\u4e48\u529e\u5462\uff1f<\/p>\n<p>\u7b54\uff1a\u9700\u8981\u505a\u5206\u5e93\u5206\u8868\u3002<\/p>\n<p>\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s7.51cto.com\/oss\/202407\/17\/d65615519d3df590a2094773737713d2cb1a33.jpg\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u56fe\u4e2d\u5c06\u7528\u6237\u5e93\u62c6\u5206\u6210\u4e86\u4e09\u4e2a\u5e93\uff0c\u6bcf\u4e2a\u5e93\u90fd\u5305\u542b\u4e86\u56db\u5f20\u7528\u6237\u8868\u3002<\/p>\n<p>\u5982\u679c\u6709\u7528\u6237\u8bf7\u6c42\u8fc7\u6765\u7684\u65f6\u5019\uff0c\u5148\u6839\u636e\u7528\u6237id\u8def\u7531\u5230\u5176\u4e2d\u4e00\u4e2a\u7528\u6237\u5e93\uff0c\u7136\u540e\u518d\u5b9a\u4f4d\u5230\u67d0\u5f20\u8868\u3002<\/p>\n<p>\u8def\u7531\u7684\u7b97\u6cd5\u633a\u591a\u7684\uff1a<\/p>\n<ul data-id=\"u738a58b-QMReYXFS\">\n<li data-id=\"ld70c578-sITwK1te\">\u6839\u636eid\u53d6\u6a21\uff0c\u6bd4\u5982\uff1aid=7\uff0c\u67094\u5f20\u8868\uff0c\u52197%4=3\uff0c\u6a21\u4e3a3\uff0c\u8def\u7531\u5230\u7528\u6237\u88683\u3002<\/li>\n<li data-id=\"ld70c578-f4Y9G2J3\">\u7ed9id\u6307\u5b9a\u4e00\u4e2a\u533a\u95f4\u8303\u56f4\uff0c\u6bd4\u5982\uff1aid\u7684\u503c\u662f0-10\u4e07\uff0c\u5219\u6570\u636e\u5b58\u5728\u7528\u6237\u88680\uff0cid\u7684\u503c\u662f10-20\u4e07\uff0c\u5219\u6570\u636e\u5b58\u5728\u7528\u6237\u88681\u3002<\/li>\n<li data-id=\"ld70c578-bCEzSr1v\">\u4e00\u81f4\u6027hash\u7b97\u6cd5<\/li>\n<\/ul>\n<p>\u5206\u5e93\u5206\u8868\u4e3b\u8981\u6709\u4e24\u4e2a\u65b9\u5411\uff1a\u5782\u76f4\u548c\u6c34\u5e73\u3002<\/p>\n<p>\u8bf4\u5b9e\u8bdd\u5782\u76f4\u65b9\u5411\uff08\u5373\u4e1a\u52a1\u65b9\u5411\uff09\u66f4\u7b80\u5355\u3002<\/p>\n<p>\u5728\u6c34\u5e73\u65b9\u5411\uff08\u5373\u6570\u636e\u65b9\u5411\uff09\u4e0a\uff0c\u5206\u5e93\u548c\u5206\u8868\u7684\u4f5c\u7528\uff0c\u5176\u5b9e\u662f\u6709\u533a\u522b\u7684\uff0c\u4e0d\u80fd\u6df7\u4e3a\u4e00\u8c08\u3002<\/p>\n<ul data-id=\"u738a58b-0HKKNSYP\">\n<li data-id=\"ld70c578-RmtrL3hM\">\u5206\u5e93\uff1a\u662f\u4e3a\u4e86\u89e3\u51b3\u6570\u636e\u5e93\u8fde\u63a5\u8d44\u6e90\u4e0d\u8db3\u95ee\u9898\uff0c\u548c\u78c1\u76d8IO\u7684\u6027\u80fd\u74f6\u9888\u95ee\u9898\u3002<\/li>\n<li data-id=\"ld70c578-VQq3oPHV\">\u5206\u8868\uff1a\u662f\u4e3a\u4e86\u89e3\u51b3\u5355\u8868\u6570\u636e\u91cf\u592a\u5927\uff0csql\u8bed\u53e5\u67e5\u8be2\u6570\u636e\u65f6\uff0c\u5373\u4f7f\u8d70\u4e86\u7d22\u5f15\u4e5f\u975e\u5e38\u8017\u65f6\u95ee\u9898\u3002\u6b64\u5916\u8fd8\u53ef\u4ee5\u89e3\u51b3\u6d88\u8017cpu\u8d44\u6e90\u95ee\u9898\u3002<\/li>\n<li data-id=\"ld70c578-z9Lwrr79\">\u5206\u5e93\u5206\u8868\uff1a\u53ef\u4ee5\u89e3\u51b3 \u6570\u636e\u5e93\u8fde\u63a5\u8d44\u6e90\u4e0d\u8db3\u3001\u78c1\u76d8IO\u7684\u6027\u80fd\u74f6\u9888\u3001\u68c0\u7d22\u6570\u636e\u8017\u65f6 \u548c \u6d88\u8017cpu\u8d44\u6e90\u7b49\u95ee\u9898\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u5728\u6709\u4e9b\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u7528\u6237\u5e76\u53d1\u91cf\u5f88\u5927\uff0c\u4f46\u662f\u9700\u8981\u4fdd\u5b58\u7684\u6570\u636e\u91cf\u5f88\u5c11\uff0c\u8fd9\u65f6\u53ef\u4ee5\u53ea\u5206\u5e93\uff0c\u4e0d\u5206\u8868\u3002<\/p>\n<p>\u5982\u679c\u5728\u6709\u4e9b\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u7528\u6237\u5e76\u53d1\u91cf\u4e0d\u5927\uff0c\u4f46\u662f\u9700\u8981\u4fdd\u5b58\u7684\u6570\u91cf\u5f88\u591a\uff0c\u8fd9\u65f6\u53ef\u4ee5\u53ea\u5206\u8868\uff0c\u4e0d\u5206\u5e93\u3002<\/p>\n<p>\u5982\u679c\u5728\u6709\u4e9b\u4e1a\u52a1\u573a\u666f\u4e2d\uff0c\u7528\u6237\u5e76\u53d1\u91cf\u5927\uff0c\u5e76\u4e14\u9700\u8981\u4fdd\u5b58\u7684\u6570\u91cf\u4e5f\u5f88\u591a\u65f6\uff0c\u53ef\u4ee5\u5206\u5e93\u5206\u8868\u3002<\/p>\n<p>\u5173\u4e8e\u5206\u5e93\u5206\u8868\u66f4\u8be6\u7ec6\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u770b\u770b\u6211\u53e6\u4e00\u7bc7\u6587\u7ae0\uff0c\u91cc\u9762\u8bb2\u7684\u66f4\u6df1\u5165\u300a\u963f\u91cc\u4e8c\u9762\uff1a\u4e3a\u4ec0\u4e48\u5206\u5e93\u5206\u8868\uff1f\u300b<\/p>\n<h2>11. \u8f85\u52a9\u529f\u80fd<\/h2>\n<p>\u4f18\u5316\u63a5\u53e3\u6027\u80fd\u95ee\u9898\uff0c\u9664\u4e86\u4e0a\u9762\u63d0\u5230\u7684\u8fd9\u4e9b\u5e38\u7528\u65b9\u6cd5\u4e4b\u5916\uff0c\u8fd8\u9700\u8981\u914d\u5408\u4f7f\u7528\u4e00\u4e9b\u8f85\u52a9\u529f\u80fd\uff0c\u56e0\u4e3a\u5b83\u4eec\u771f\u7684\u53ef\u4ee5\u5e2e\u6211\u4eec\u63d0\u5347\u67e5\u627e\u95ee\u9898\u7684\u6548\u7387\u3002<\/p>\n<h3>11.1 \u5f00\u542f\u6162\u67e5\u8be2\u65e5\u5fd7<\/h3>\n<p>\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u5b9a\u4f4dsql\u7684\u6027\u80fd\u74f6\u9888\uff0c\u6211\u4eec\u9700\u8981\u5f00\u542fmysql\u7684\u6162\u67e5\u8be2\u65e5\u5fd7\u3002\u628a\u8d85\u8fc7\u6307\u5b9a\u65f6\u95f4\u7684sql\u8bed\u53e5\uff0c\u5355\u72ec\u8bb0\u5f55\u4e0b\u6765\uff0c\u65b9\u9762\u4ee5\u540e\u5206\u6790\u548c\u5b9a\u4f4d\u95ee\u9898\u3002<\/p>\n<p>\u5f00\u542f\u6162\u67e5\u8be2\u65e5\u5fd7\u9700\u8981\u91cd\u70b9\u5173\u6ce8\u4e09\u4e2a\u53c2\u6570\uff1a<\/p>\n<ul data-id=\"u738a58b-I66oJm25\">\n<li data-id=\"ld70c578-WhfnXLJ8\">slow_query_log\u00a0\u6162\u67e5\u8be2\u5f00\u5173<\/li>\n<li data-id=\"ld70c578-cCKpflVe\">slow_query_log_file\u00a0\u6162\u67e5\u8be2\u65e5\u5fd7\u5b58\u653e\u7684\u8def\u5f84<\/li>\n<li data-id=\"ld70c578-skx37GcA\">long_query_time\u00a0\u8d85\u8fc7\u591a\u5c11\u79d2\u624d\u4f1a\u8bb0\u5f55\u65e5\u5fd7<\/li>\n<\/ul>\n<p>\u901a\u8fc7mysql\u7684set\u547d\u4ee4\u53ef\u4ee5\u8bbe\u7f6e\uff1a<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_23\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token keyword\">set<\/span> <span class=\"token keyword\">global<\/span> slow_query_log<span class=\"token operator\">=<\/span><span class=\"token string\">'ON'<\/span><span class=\"token punctuation\">;<\/span> \r\n<span class=\"token keyword\">set<\/span> <span class=\"token keyword\">global<\/span> slow_query_log_file<span class=\"token operator\">=<\/span><span class=\"token string\">'\/usr\/local\/mysql\/data\/slow.log'<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">set<\/span> <span class=\"token keyword\">global<\/span> long_query_time<span class=\"token operator\">=<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<ul id=\"code_id_23\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8bbe\u7f6e\u5b8c\u4e4b\u540e\uff0c\u5982\u679c\u67d0\u6761sql\u7684\u6267\u884c\u65f6\u95f4\u8d85\u8fc7\u4e862\u79d2\uff0c\u4f1a\u88ab\u81ea\u52a8\u8bb0\u5f55\u5230slow.log\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>\u5f53\u7136\u4e5f\u53ef\u4ee5\u76f4\u63a5\u4fee\u6539\u914d\u7f6e\u6587\u4ef6my.cnf<\/p>\n<div>\n<div class=\"hljs-cto\">\n<div class=\"hljs-cto\"><button class=\"copy_btn disable\" data-clipboard-target=\"#code_id_24\">\u590d\u5236<\/button><\/p>\n<div class=\"code-toolbar\">\n<pre class=\"has-pre-numbering language-sql\" tabindex=\"0\"><code class=\"language-sql\"><span class=\"token punctuation\">[<\/span>mysqld<span class=\"token punctuation\">]<\/span>\r\nslow_query_log <span class=\"token operator\">=<\/span> <span class=\"token keyword\">ON<\/span>\r\nslow_query_log_file <span class=\"token operator\">=<\/span> <span class=\"token operator\">\/<\/span>usr<span class=\"token operator\">\/<\/span><span class=\"token keyword\">local<\/span><span class=\"token operator\">\/<\/span>mysql<span class=\"token operator\">\/<\/span><span class=\"token keyword\">data<\/span><span class=\"token operator\">\/<\/span>slow<span class=\"token punctuation\">.<\/span>log\r\nlong_query_time <span class=\"token operator\">=<\/span> <span class=\"token number\">2<\/span><\/code><\/pre>\n<ul id=\"code_id_24\" class=\"pre-numbering\">\n<li>1.<\/li>\n<li>2.<\/li>\n<li>3.<\/li>\n<li>4.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u4f46\u8fd9\u79cd\u65b9\u5f0f\u9700\u8981\u91cd\u542fmysql\u670d\u52a1\u3002<\/p>\n<p>\u5f88\u591a\u516c\u53f8\u6bcf\u5929\u65e9\u4e0a\u90fd\u4f1a\u53d1\u4e00\u5c01\u6162\u67e5\u8be2\u65e5\u5fd7\u7684\u90ae\u4ef6\uff0c\u5f00\u53d1\u4eba\u5458\u6839\u636e\u8fd9\u4e9b\u4fe1\u606f\u4f18\u5316sql\u3002<\/p>\n<h3>11.2 \u52a0\u76d1\u63a7<\/h3>\n<p>\u4e3a\u4e86\u51fa\u73b0sql\u95ee\u9898\u65f6\uff0c\u80fd\u591f\u8ba9\u6211\u4eec\u53ca\u65f6\u53d1\u73b0\uff0c\u6211\u4eec\u9700\u8981\u5bf9\u7cfb\u7edf\u505a\u76d1\u63a7\u3002<\/p>\n<p>\u76ee\u524d\u4e1a\u754c\u4f7f\u7528\u6bd4\u8f83\u591a\u7684\u5f00\u6e90\u76d1\u63a7\u7cfb\u7edf\u662f\uff1aPrometheus\u3002<\/p>\n<p>\u5b83\u63d0\u4f9b\u4e86\u00a0\u76d1\u63a7\u00a0\u548c\u00a0\u9884\u8b66\u00a0\u7684\u529f\u80fd\u3002<\/p>\n<p>\u67b6\u6784\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s4.51cto.com\/oss\/202407\/17\/821b6721402665f343a57503aeb1bba36f0642.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u7528\u5b83\u76d1\u63a7\u5982\u4e0b\u4fe1\u606f\uff1a<\/p>\n<ul data-id=\"u738a58b-lkoVWZVB\">\n<li data-id=\"ld70c578-IeWH4hzl\">\u63a5\u53e3\u54cd\u5e94\u65f6\u95f4<\/li>\n<li data-id=\"ld70c578-1GzYmwNG\">\u8c03\u7528\u7b2c\u4e09\u65b9\u670d\u52a1\u8017\u65f6<\/li>\n<li data-id=\"ld70c578-uLLSBaCI\">\u6162\u67e5\u8be2sql\u8017\u65f6<\/li>\n<li data-id=\"ld70c578-dLF835lA\">cpu\u4f7f\u7528\u60c5\u51b5<\/li>\n<li data-id=\"ld70c578-OkTwLeeY\">\u5185\u5b58\u4f7f\u7528\u60c5\u51b5<\/li>\n<li data-id=\"ld70c578-oEYsUefz\">\u78c1\u76d8\u4f7f\u7528\u60c5\u51b5<\/li>\n<li data-id=\"ld70c578-KewNb7Zn\">\u6570\u636e\u5e93\u4f7f\u7528\u60c5\u51b5<\/li>\n<\/ul>\n<p>\u7b49\u7b49\u3002\u3002\u3002<\/p>\n<p>\u5b83\u7684\u754c\u9762\u5927\u6982\u957f\u8fd9\u6837\u5b50\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s7.51cto.com\/oss\/202407\/17\/51688795449cb80c4b64592af59f9ac409d7c3.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u53ef\u4ee5\u770b\u5230mysql\u5f53\u524dqps\uff0c\u6d3b\u8dc3\u7ebf\u7a0b\u6570\uff0c\u8fde\u63a5\u6570\uff0c\u7f13\u5b58\u6c60\u7684\u5927\u5c0f\u7b49\u4fe1\u606f\u3002<\/p>\n<p>\u5982\u679c\u53d1\u73b0\u6570\u636e\u91cf\u8fde\u63a5\u6c60\u5360\u7528\u592a\u591a\uff0c\u5bf9\u63a5\u53e3\u7684\u6027\u80fd\u80af\u5b9a\u4f1a\u6709\u5f71\u54cd\u3002<\/p>\n<p>\u8fd9\u65f6\u53ef\u80fd\u662f\u4ee3\u7801\u4e2d\u5f00\u542f\u4e86\u8fde\u63a5\u5fd8\u4e86\u5173\uff0c\u6216\u8005\u5e76\u53d1\u91cf\u592a\u5927\u4e86\u5bfc\u81f4\u7684\uff0c\u9700\u8981\u505a\u8fdb\u4e00\u6b65\u6392\u67e5\u548c\u7cfb\u7edf\u4f18\u5316\u3002<\/p>\n<p>\u622a\u56fe\u4e2d\u53ea\u662f\u5b83\u4e00\u5c0f\u90e8\u5206\u529f\u80fd\uff0c\u5982\u679c\u4f60\u60f3\u4e86\u89e3\u66f4\u591a\u529f\u80fd\uff0c\u53ef\u4ee5\u8bbf\u95eePrometheus\u7684\u5b98\u7f51\uff1ahttps:\/\/prometheus.io\/<\/p>\n<h3>11.3 \u94fe\u8def\u8ddf\u8e2a<\/h3>\n<p>\u6709\u65f6\u5019\u67d0\u4e2a\u63a5\u53e3\u6d89\u53ca\u7684\u903b\u8f91\u5f88\u591a\uff0c\u6bd4\u5982\uff1a\u67e5\u6570\u636e\u5e93\u3001\u67e5redis\u3001\u8fdc\u7a0b\u8c03\u7528\u63a5\u53e3\uff0c\u53d1mq\u6d88\u606f\uff0c\u6267\u884c\u4e1a\u52a1\u4ee3\u7801\u7b49\u7b49\u3002<\/p>\n<p>\u8be5\u63a5\u53e3\u4e00\u6b21\u8bf7\u6c42\u7684\u94fe\u8def\u5f88\u957f\uff0c\u5982\u679c\u9010\u4e00\u6392\u67e5\uff0c\u9700\u8981\u82b1\u8d39\u5927\u91cf\u7684\u65f6\u95f4\uff0c\u8fd9\u65f6\u5019\uff0c\u6211\u4eec\u5df2\u7ecf\u6ca1\u6cd5\u7528\u4f20\u7edf\u7684\u529e\u6cd5\u5b9a\u4f4d\u95ee\u9898\u4e86\u3002<\/p>\n<p>\u6709\u6ca1\u6709\u529e\u6cd5\u89e3\u51b3\u8fd9\u95ee\u9898\u5462\uff1f<\/p>\n<p>\u7528\u5206\u5e03\u5f0f\u94fe\u8def\u8ddf\u8e2a\u7cfb\u7edf\uff1askywalking\u3002<\/p>\n<p>\u67b6\u6784\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s8.51cto.com\/oss\/202407\/17\/227257567bca80a9de16579f16abb842a5f1be.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u901a\u8fc7skywalking\u5b9a\u4f4d\u6027\u80fd\u95ee\u9898\uff1a<\/p>\n<p><img decoding=\"async\" title=\"\u56fe\u7247\" src=\"https:\/\/s8.51cto.com\/oss\/202407\/17\/72e7091135d0faf7ecc607c6c70633a28d1146.png\" alt=\"\u56fe\u7247\" data-type=\"block\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<p>\u5728skywalking\u4e2d\u53ef\u4ee5\u901a\u8fc7traceId\uff08\u5168\u5c40\u552f\u4e00\u7684id\uff09\uff0c\u4e32\u8054\u4e00\u4e2a\u63a5\u53e3\u8bf7\u6c42\u7684\u5b8c\u6574\u94fe\u8def\u3002\u53ef\u4ee5\u770b\u5230\u6574\u4e2a\u63a5\u53e3\u7684\u8017\u65f6\uff0c\u8c03\u7528\u7684\u8fdc\u7a0b\u670d\u52a1\u7684\u8017\u65f6\uff0c\u8bbf\u95ee\u6570\u636e\u5e93\u6216\u8005redis\u7684\u8017\u65f6\u7b49\u7b49\uff0c\u529f\u80fd\u975e\u5e38\u5f3a\u5927\u3002<\/p>\n<p>\u4e4b\u524d\u6ca1\u6709\u8fd9\u4e2a\u529f\u80fd\u7684\u65f6\u5019\uff0c\u4e3a\u4e86\u5b9a\u4f4d\u7ebf\u4e0a\u63a5\u53e3\u6027\u80fd\u95ee\u9898\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u5728\u4ee3\u7801\u4e2d\u52a0\u65e5\u5fd7\uff0c\u624b\u52a8\u6253\u5370\u51fa\u94fe\u8def\u4e2d\u5404\u4e2a\u73af\u8282\u7684\u8017\u65f6\u60c5\u51b5\uff0c\u7136\u540e\u518d\u9010\u4e00\u6392\u67e5\u3002<\/p>\n<p>\u5982\u679c\u4f60\u7528\u8fc7skywalking\u6392\u67e5\u63a5\u53e3\u6027\u80fd\u95ee\u9898\uff0c\u4e0d\u81ea\u89c9\u7684\u4f1a\u7231\u4e0a\u5b83\u7684\u3002\u5982\u679c\u4f60\u60f3\u4e86\u89e3\u66f4\u591a\u529f\u80fd\uff0c\u53ef\u4ee5\u8bbf\u95eeskywalking\u7684\u5b98\u7f51\uff1ahttps:\/\/skywalking.apache.org\/<\/p>\n<\/div>\n<\/div>\n<div 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70 36 67 87 -16 290 -86 209 -89 214 -129 231 -35 14 -42 15 -82 7z\"\/><path d=\"M3689 3066 c-15 -9 -33 -30 -42 -48 -48 -103 -147 -355 -147 -375 0 -98 131 -148 192 -74 13 15 57 108 97 206 80 196 84 226 37 273 -30 30 -99 39 -137 18z\"\/><path d=\"M583 2784 c-38 -19 -67 -74 -58 -113 9 -42 211 -354 242 -373 16 -10 45 -18 66 -18 51 0 107 52 107 100 0 39 -1 41 -124 234 -80 126 -108 162 -133 173 -41 17 -61 16 -100 -3z\"\/><path d=\"M4250 2784 c-14 -9 -74 -91 -133 -183 -95 -150 -107 -173 -107 -213 0 -55 33 -94 87 -104 67 -13 90 8 211 198 130 202 137 225 78 284 -27 27 -42 34 -72 34 -22 0 -50 -8 -64 -16z\"\/><path d=\"M2275 2693 c-553 -48 -1095 -270 -1585 -649 -135 -104 -459 -423 -483 -476 -23 -49 -22 -139 2 -186 73 -142 361 -457 571 -626 285 -228 642 -407 990 -497 242 -63 336 -73 660 -74 310 0 370 5 595 52 535 111 1045 392 1455 803 122 121 250 273 275 326 19 41 19 137 0 174 -41 79 -309 363 -465 492 -447 370 -946 591 -1479 653 -113 14 -422 18 -536 8z m395 -428 c171 -34 330 -124 456 -258 112 -119 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src=\"https:\/\/aif.amtbbs.org\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5728skywalking\u4e2d\u53ef\u4ee5\u901a\u8fc7\u200b\u200b\u200btraceId\u200b\u200b\uff08\u5168\u5c40\u552f\u4e00\u7684id\uff09\uff0c\u4e32\u8054\u4e00\u4e2a\u63a5\u53e3\u8bf7\u6c42\u7684\u5b8c\u6574\u94fe\u8def\u3002\u53ef\u4ee5\u770b [&hellip;]<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_21206\" class=\"pvc_stats total_only  \" data-element-id=\"21206\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.0\" viewBox=\"0 0 502 315\" preserveAspectRatio=\"xMidYMid meet\"><g transform=\"translate(0,332) scale(0.1,-0.1)\" fill=\"\" stroke=\"none\"><path d=\"M2394 3279 l-29 -30 -3 -207 c-2 -182 0 -211 15 -242 39 -76 157 -76 196 0 15 31 17 60 15 243 l-3 209 -33 29 c-26 23 -41 29 -80 29 -41 0 -53 -5 -78 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class=\"pvc_clear\"><\/div>\n","protected":false},"author":56,"featured_media":21208,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,20,80],"tags":[1211,923,1210],"class_list":["post-21206","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-23","category-20","category-80","tag-1211","tag-923","tag-1210"],"_links":{"self":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/21206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/users\/56"}],"replies":[{"embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/comments?post=21206"}],"version-history":[{"count":1,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/21206\/revisions"}],"predecessor-version":[{"id":21211,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/posts\/21206\/revisions\/21211"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/media\/21208"}],"wp:attachment":[{"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/media?parent=21206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/categories?post=21206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aif.amtbbs.org\/index.php\/wp-json\/wp\/v2\/tags?post=21206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}