{"id":21013,"date":"2024-07-08T09:53:12","date_gmt":"2024-07-08T01:53:12","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=21013"},"modified":"2024-07-08T09:53:12","modified_gmt":"2024-07-08T01:53:12","slug":"mongodb%e5%9c%a8ai%e5%92%8c%e5%a4%a7%e6%95%b0%e6%8d%ae%e4%b8%ad%e7%9a%84%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2024\/07\/08\/21013\/","title":{"rendered":"MongoDB\u5728AI\u548c\u5927\u6570\u636e\u4e2d\u7684\u5e94\u7528"},"content":{"rendered":"<div><img data-dominant-color=\"d8d8db\" data-has-transparency=\"false\" style=\"--dominant-color: #d8d8db;\" loading=\"lazy\" decoding=\"async\" class=\"not-transparent alignnone size-full wp-image-21015\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/4960ade70a58c114e1d38433a16539df558d69-300x167-1.jpg\" width=\"300\" height=\"167\" alt=\"\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/4960ade70a58c114e1d38433a16539df558d69-300x167-1.jpg 300w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2024\/07\/4960ade70a58c114e1d38433a16539df558d69-300x167-1-150x84.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/div>\n<div class=\"article-desc\">\u901a\u8fc7\u672c\u6587\u7684\u8bb2\u89e3\uff0c\u6211\u4eec\u6df1\u5165\u63a2\u8ba8\u4e86MongoDB\u5728AI\u548c\u5927\u6570\u636e\u4e2d\u7684\u5e94\u7528\uff0c\u5305\u62ec\u5728\u673a\u5668\u5b66\u4e60\u4e2d\u7684\u5e94\u7528\u3001\u5927\u6570\u636e\u5904\u7406\u3001AI\u4e0e\u5927\u6570\u636e\u7ed3\u5408\u7684\u5b9e\u8df5\u4f8b\u5b50\u4ee5\u53ca\u9762\u4e34\u7684\u6311\u6218\u548c\u89e3\u51b3\u529e\u6cd5\u3002<\/div>\n<div id=\"postspictures\" class=\"article-content\">\n<div id=\"container\" class=\"container am-engine\" data-v-1d7a5742=\"\" data-element=\"root\">\u8fd9\u4e00\u7cfb\u5217\u8bfe\u7a0b\u5c06\u5305\u542bSpring Boot \u8bb8\u591a\u5173\u952e\u7684\u6280\u672f\u548c\u5de5\u5177\uff0c\u5305\u62ec Mybatis-Plus\u3001Redis\u3001Mongodb\u3001MinIO\u3001Kafka\u3001MySQL\u3001\u6d88\u606f\u961f\u5217\uff08MQ\uff09\u3001OAuth2 \u7b49\u76f8\u5173\u5185\u5bb9\u3002<\/p>\n<h3>MongoDB\u5728AI\u548c\u5927\u6570\u636e\u4e2d\u7684\u5e94\u7528<\/h3>\n<p>MongoDB\u4f5c\u4e3a\u4e00\u79cdNoSQL\u6570\u636e\u5e93\uff0c\u5177\u6709\u9ad8\u6269\u5c55\u6027\u548c\u7075\u6d3b\u7684\u6570\u636e\u6a21\u578b\uff0c\u7279\u522b\u9002\u5408\u5b58\u50a8\u548c\u5904\u7406\u5927\u89c4\u6a21\u7684\u975e\u7ed3\u6784\u5316\u6570\u636e\u3002\u5728\u673a\u5668\u5b66\u4e60\u4e2d\uff0cMongoDB\u53ef\u4ee5\u7528\u4e8e\u5b58\u50a8\u8bad\u7ec3\u6570\u636e\u3001\u6a21\u578b\u548c\u9884\u6d4b\u7ed3\u679c\u3002<\/p>\n<h5>\u793a\u4f8b\u4ee3\u7801\uff1a\u4f7f\u7528MongoDB\u5b58\u50a8\u548c\u8bfb\u53d6\u8bad\u7ec3\u6570\u636e<\/h5>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5728Spring Boot\u9879\u76ee\u4e2d\u6dfb\u52a0MongoDB\u7684\u4f9d\u8d56\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 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><span class=\"token keyword\">data<\/span><span class=\"token operator\">-<\/span>mongodb<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><\/code><\/pre>\n<ul id=\"code_id_0\" 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>\u63a5\u4e0b\u6765\uff0c\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f53\u7c7bTrainingData\uff0c\u7528\u4e8e\u5b58\u50a8\u8bad\u7ec3\u6570\u636e\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Id<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>mongodb<span class=\"token punctuation\">.<\/span>core<span class=\"token punctuation\">.<\/span>mapping<span class=\"token punctuation\">.<\/span>Document<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@Document<\/span><span class=\"token punctuation\">(<\/span>collection <span class=\"token operator\">=<\/span> <span class=\"token string\">\"training_data\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">public<\/span> class TrainingData {\r\n\r\n    <span class=\"token variable\">@Id<\/span>\r\n    private String id<span class=\"token punctuation\">;<\/span>\r\n    private String feature<span class=\"token punctuation\">;<\/span>\r\n    private <span class=\"token keyword\">double<\/span> label<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ Getters and setters omitted for brevity<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_1\" 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>\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u8bbf\u95ee\u5c42\u63a5\u53e3TrainingDataRepository\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>mongodb<span class=\"token punctuation\">.<\/span>repository<span class=\"token punctuation\">.<\/span>MongoRepository<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">public<\/span> interface TrainingDataRepository extends MongoRepository<span class=\"token operator\">&lt;<\/span>TrainingData<span class=\"token punctuation\">,<\/span> String<span class=\"token operator\">&gt;<\/span> {\r\n    <span class=\"token comment\">\/\/ \u5b9a\u4e49\u6839\u636e\u7279\u5f81\u67e5\u8be2\u8bad\u7ec3\u6570\u636e\u7684\u65b9\u6cd5<\/span>\r\n    List<span class=\"token operator\">&lt;<\/span>TrainingData<span class=\"token operator\">&gt;<\/span> findByFeature<span class=\"token punctuation\">(<\/span>String feature<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n}<\/code><\/pre>\n<ul id=\"code_id_2\" 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>\u521b\u5efa\u4e00\u4e2a\u670d\u52a1\u7c7bTrainingDataService\uff0c\u7528\u4e8e\u5904\u7406\u8bad\u7ec3\u6570\u636e\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Autowired<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span>Service<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">import<\/span> java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>List<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@Service<\/span>\r\n<span class=\"token keyword\">public<\/span> class TrainingDataService {\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private TrainingDataRepository trainingDataRepository<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ \u4fdd\u5b58\u8bad\u7ec3\u6570\u636e<\/span>\r\n    <span class=\"token keyword\">public<\/span> void saveTrainingData<span class=\"token punctuation\">(<\/span>String feature<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">double<\/span> label<span class=\"token punctuation\">)<\/span> {\r\n        TrainingData trainingData <span class=\"token operator\">=<\/span> new TrainingData<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        trainingData<span class=\"token punctuation\">.<\/span>setFeature<span class=\"token punctuation\">(<\/span>feature<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        trainingData<span class=\"token punctuation\">.<\/span>setLabel<span class=\"token punctuation\">(<\/span>label<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        trainingDataRepository<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">save<\/span><span class=\"token punctuation\">(<\/span>trainingData<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n    <span class=\"token comment\">\/\/ \u83b7\u53d6\u8bad\u7ec3\u6570\u636e<\/span>\r\n    <span class=\"token keyword\">public<\/span> List<span class=\"token operator\">&lt;<\/span>TrainingData<span class=\"token operator\">&gt;<\/span> getTrainingData<span class=\"token punctuation\">(<\/span>String feature<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> trainingDataRepository<span class=\"token punctuation\">.<\/span>findByFeature<span class=\"token punctuation\">(<\/span>feature<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n}<\/code><\/pre>\n<ul id=\"code_id_3\" 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<p>\u521b\u5efa\u4e00\u4e2a\u63a7\u5236\u5668\u7c7bTrainingDataController\uff0c\u7528\u4e8e\u63a5\u6536\u548c\u8fd4\u56de\u8bad\u7ec3\u6570\u636e\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Autowired<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">import<\/span> java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>List<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@RestController<\/span>\r\n<span class=\"token variable\">@RequestMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\/api\/training-data\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">public<\/span> class TrainingDataController {\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private TrainingDataService trainingDataService<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ \u63a5\u6536\u8bad\u7ec3\u6570\u636e<\/span>\r\n    <span class=\"token variable\">@PostMapping<\/span>\r\n    <span class=\"token keyword\">public<\/span> String saveTrainingData<span class=\"token punctuation\">(<\/span><span class=\"token variable\">@RequestParam<\/span> String feature<span class=\"token punctuation\">,<\/span> <span class=\"token variable\">@RequestParam<\/span> <span class=\"token keyword\">double<\/span> label<span class=\"token punctuation\">)<\/span> {\r\n        trainingDataService<span class=\"token punctuation\">.<\/span>saveTrainingData<span class=\"token punctuation\">(<\/span>feature<span class=\"token punctuation\">,<\/span> label<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">\"\u8bad\u7ec3\u6570\u636e\u4fdd\u5b58\u6210\u529f\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n    <span class=\"token comment\">\/\/ \u8fd4\u56de\u8bad\u7ec3\u6570\u636e<\/span>\r\n    <span class=\"token variable\">@GetMapping<\/span>\r\n    <span class=\"token keyword\">public<\/span> List<span class=\"token operator\">&lt;<\/span>TrainingData<span class=\"token operator\">&gt;<\/span> getTrainingData<span class=\"token punctuation\">(<\/span><span class=\"token variable\">@RequestParam<\/span> String feature<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> trainingDataService<span class=\"token punctuation\">.<\/span>getTrainingData<span class=\"token punctuation\">(<\/span>feature<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n}<\/code><\/pre>\n<ul id=\"code_id_4\" 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<li>25.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528MongoDB\u5b58\u50a8\u548c\u8bfb\u53d6\u673a\u5668\u5b66\u4e60\u6240\u9700\u7684\u8bad\u7ec3\u6570\u636e\u3002MongoDB\u7684\u6587\u6863\u6a21\u578b\u4f7f\u5f97\u5b58\u50a8\u548c\u67e5\u8be2\u6570\u636e\u53d8\u5f97\u975e\u5e38\u7075\u6d3b\u548c\u9ad8\u6548\u3002<\/p>\n<h4>\u5927\u6570\u636e\u5904\u7406\u548cMongoDB<\/h4>\n<p>\u5728\u5927\u6570\u636e\u5904\u7406\u65b9\u9762\uff0cMongoDB\u7684\u9ad8\u53ef\u6269\u5c55\u6027\u548c\u5206\u5e03\u5f0f\u67b6\u6784\u4f7f\u5176\u6210\u4e3a\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u7684\u7406\u60f3\u9009\u62e9\u3002MongoDB\u652f\u6301\u5206\u7247\uff08Sharding\uff09\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u5206\u5e03\u5728\u591a\u4e2a\u8282\u70b9\u4e0a\uff0c\u63d0\u4f9b\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u3002<\/p>\n<h5>\u793a\u4f8b\u4ee3\u7801\uff1a\u4f7f\u7528MongoDB\u8fdb\u884c\u5927\u6570\u636e\u5904\u7406<\/h5>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u914d\u7f6eMongoDB\u7684\u5206\u7247\u96c6\u7fa4\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8fd9\u9700\u8981\u5728MongoDB\u670d\u52a1\u5668\u4e0a\u8fdb\u884c\u914d\u7f6e\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u5206\u7247\u914d\u7f6e\u793a\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_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 comment\"># \u542f\u52a8\u914d\u7f6e\u670d\u52a1\u5668<\/span>\r\nmongod <span class=\"token comment\">--configsvr --replSet configReplSet --dbpath \/data\/configdb --port 27019<\/span>\r\n\r\n<span class=\"token comment\"># \u542f\u52a8\u5206\u7247\u670d\u52a1\u5668<\/span>\r\nmongod <span class=\"token comment\">--shardsvr --replSet shardReplSet1 --dbpath \/data\/shard1 --port 27018<\/span>\r\nmongod <span class=\"token comment\">--shardsvr --replSet shardReplSet2 --dbpath \/data\/shard2 --port 27018<\/span>\r\n\r\n<span class=\"token comment\"># \u542f\u52a8mongos\u8def\u7531<\/span>\r\nmongos <span class=\"token comment\">--configdb configReplSet\/localhost:27019 --port 27017<\/span><\/code><\/pre>\n<ul id=\"code_id_5\" 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>\u5728Spring Boot\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Spring Data MongoDB\u6765\u8fde\u63a5\u548c\u64cd\u4f5c\u5206\u7247\u96c6\u7fa4\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\">spring:\r\n  <span class=\"token keyword\">data<\/span>:\r\n    mongodb:\r\n      uri: mongodb:<span class=\"token comment\">\/\/localhost:27017,localhost:27018,localhost:27019\/mydb?replicaSet=shardReplSet1<\/span><\/code><\/pre>\n<ul id=\"code_id_6\" 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>\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f53\u7c7bBigData\uff0c\u7528\u4e8e\u5b58\u50a8\u5927\u6570\u636e\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Id<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>mongodb<span class=\"token punctuation\">.<\/span>core<span class=\"token punctuation\">.<\/span>mapping<span class=\"token punctuation\">.<\/span>Document<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@Document<\/span><span class=\"token punctuation\">(<\/span>collection <span class=\"token operator\">=<\/span> <span class=\"token string\">\"big_data\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">public<\/span> class BigData {\r\n\r\n    <span class=\"token variable\">@Id<\/span>\r\n    private String id<span class=\"token punctuation\">;<\/span>\r\n    private String <span class=\"token keyword\">data<\/span><span class=\"token punctuation\">;<\/span>\r\n    private long <span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ Getters and setters omitted for brevity<\/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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u8bbf\u95ee\u5c42\u63a5\u53e3BigDataRepository\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>mongodb<span class=\"token punctuation\">.<\/span>repository<span class=\"token punctuation\">.<\/span>MongoRepository<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">public<\/span> interface BigDataRepository extends MongoRepository<span class=\"token operator\">&lt;<\/span>BigData<span class=\"token punctuation\">,<\/span> String<span class=\"token operator\">&gt;<\/span> {\r\n    <span class=\"token comment\">\/\/ \u5b9a\u4e49\u6839\u636e\u65f6\u95f4\u6233\u67e5\u8be2\u5927\u6570\u636e\u7684\u65b9\u6cd5<\/span>\r\n    List<span class=\"token operator\">&lt;<\/span>BigData<span class=\"token operator\">&gt;<\/span> findByTimestampGreaterThan<span class=\"token punctuation\">(<\/span>long <span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span><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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u521b\u5efa\u4e00\u4e2a\u670d\u52a1\u7c7bBigDataService\uff0c\u7528\u4e8e\u5904\u7406\u5927\u6570\u636e\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Autowired<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span>Service<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">import<\/span> java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>List<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@Service<\/span>\r\n<span class=\"token keyword\">public<\/span> class BigDataService {\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private BigDataRepository bigDataRepository<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ \u4fdd\u5b58\u5927\u6570\u636e<\/span>\r\n    <span class=\"token keyword\">public<\/span> void saveBigData<span class=\"token punctuation\">(<\/span>String <span class=\"token keyword\">data<\/span><span class=\"token punctuation\">,<\/span> long <span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span> {\r\n        BigData bigData <span class=\"token operator\">=<\/span> new BigData<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        bigData<span class=\"token punctuation\">.<\/span>setData<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        bigData<span class=\"token punctuation\">.<\/span>setTimestamp<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        bigDataRepository<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">save<\/span><span class=\"token punctuation\">(<\/span>bigData<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n    <span class=\"token comment\">\/\/ \u83b7\u53d6\u5927\u6570\u636e<\/span>\r\n    <span class=\"token keyword\">public<\/span> List<span class=\"token operator\">&lt;<\/span>BigData<span class=\"token operator\">&gt;<\/span> getBigData<span class=\"token punctuation\">(<\/span>long <span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> bigDataRepository<span class=\"token punctuation\">.<\/span>findByTimestampGreaterThan<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\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<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<p>\u521b\u5efa\u4e00\u4e2a\u63a7\u5236\u5668\u7c7b\u00a0BigDataController\uff0c\u7528\u4e8e\u63a5\u6536\u548c\u8fd4\u56de\u5927\u6570\u636e\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Autowired<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">import<\/span> java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>List<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@RestController<\/span>\r\n<span class=\"token variable\">@RequestMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\/api\/big-data\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">public<\/span> class BigDataController {\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private BigDataService bigDataService<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ \u63a5\u6536\u5927\u6570\u636e<\/span>\r\n    <span class=\"token variable\">@PostMapping<\/span>\r\n    <span class=\"token keyword\">public<\/span> String saveBigData<span class=\"token punctuation\">(<\/span><span class=\"token variable\">@RequestParam<\/span> String <span class=\"token keyword\">data<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token variable\">@RequestParam<\/span> long <span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span> {\r\n        bigDataService<span class=\"token punctuation\">.<\/span>saveBigData<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">\"\u5927\u6570\u636e\u4fdd\u5b58\u6210\u529f\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n    <span class=\"token comment\">\/\/ \u8fd4\u56de\u5927\u6570\u636e<\/span>\r\n    <span class=\"token variable\">@GetMapping<\/span>\r\n    <span class=\"token keyword\">public<\/span> List<span class=\"token operator\">&lt;<\/span>BigData<span class=\"token operator\">&gt;<\/span> getBigData<span class=\"token punctuation\">(<\/span><span class=\"token variable\">@RequestParam<\/span> long <span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> bigDataService<span class=\"token punctuation\">.<\/span>getBigData<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\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<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<li>25.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u4ee3\u7801\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528MongoDB\u5b58\u50a8\u548c\u5904\u7406\u5927\u89c4\u6a21\u6570\u636e\u3002MongoDB\u7684\u5206\u7247\u673a\u5236\u786e\u4fdd\u4e86\u6570\u636e\u7684\u9ad8\u53ef\u7528\u6027\u548c\u9ad8\u6027\u80fd\u3002<\/p>\n<h4>AI\u4e0e\u5927\u6570\u636e\u7ed3\u5408\u7684\u5b9e\u8df5\u4f8b\u5b50<\/h4>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cAI\u548c\u5927\u6570\u636e\u7684\u7ed3\u5408\u53ef\u4ee5\u7528\u4e8e\u591a\u79cd\u573a\u666f\uff0c\u5982\u63a8\u8350\u7cfb\u7edf\u3001\u5f02\u5e38\u68c0\u6d4b\u548c\u9884\u6d4b\u5206\u6790\u7b49\u3002\u8fd9\u91cc\u6211\u4eec\u4ee5\u4e00\u4e2a\u7b80\u5355\u7684\u63a8\u8350\u7cfb\u7edf\u4e3a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528MongoDB\u548c\u673a\u5668\u5b66\u4e60\u7b97\u6cd5\u5b9e\u73b0\u63a8\u8350\u529f\u80fd\u3002<\/p>\n<h5>\u793a\u4f8b\u4ee3\u7801\uff1a\u6784\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u63a8\u8350\u7cfb\u7edf<\/h5>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u51c6\u5907\u7528\u6237\u884c\u4e3a\u6570\u636e\uff0c\u5e76\u5c06\u5176\u5b58\u50a8\u5728MongoDB\u4e2d\u3002\u7528\u6237\u884c\u4e3a\u6570\u636e\u53ef\u4ee5\u5305\u62ec\u7528\u6237\u7684\u6d4f\u89c8\u8bb0\u5f55\u3001\u70b9\u51fb\u8bb0\u5f55\u548c\u8d2d\u4e70\u8bb0\u5f55\u7b49\u3002<\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u5b9e\u4f53\u7c7b\u00a0UserBehavior\uff0c\u7528\u4e8e\u5b58\u50a8\u7528\u6237\u884c\u4e3a\u6570\u636e\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Id<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>mongodb<span class=\"token punctuation\">.<\/span>core<span class=\"token punctuation\">.<\/span>mapping<span class=\"token punctuation\">.<\/span>Document<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@Document<\/span><span class=\"token punctuation\">(<\/span>collection <span class=\"token operator\">=<\/span> <span class=\"token string\">\"user_behavior\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">public<\/span> class UserBehavior {\r\n\r\n    <span class=\"token variable\">@Id<\/span>\r\n    private String id<span class=\"token punctuation\">;<\/span>\r\n    private String userId<span class=\"token punctuation\">;<\/span>\r\n    private String itemId<span class=\"token punctuation\">;<\/span>\r\n    private String behaviorType<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u6d4f\u89c8\u3001\u70b9\u51fb\u3001\u8d2d\u4e70\u7b49<\/span>\r\n    private long <span class=\"token keyword\">timestamp<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ Getters and setters omitted for brevity<\/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<li>10.<\/li>\n<li>11.<\/li>\n<li>12.<\/li>\n<li>13.<\/li>\n<li>14.<\/li>\n<li>15.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u8bbf\u95ee\u5c42\u63a5\u53e3\u00a0UserBehaviorRepository\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">data<\/span><span class=\"token punctuation\">.<\/span>mongodb<span class=\"token punctuation\">.<\/span>repository<span class=\"token punctuation\">.<\/span>MongoRepository<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">public<\/span> interface UserBehaviorRepository extends MongoRepository<span class=\"token operator\">&lt;<\/span>UserBehavior<span class=\"token punctuation\">,<\/span> String<span class=\"token operator\">&gt;<\/span> {\r\n    <span class=\"token comment\">\/\/ \u5b9a\u4e49\u6839\u636e\u7528\u6237ID\u67e5\u8be2\u884c\u4e3a\u6570\u636e\u7684\u65b9\u6cd5<\/span>\r\n    List<span class=\"token operator\">&lt;<\/span>UserBehavior<span class=\"token operator\">&gt;<\/span> findByUserId<span class=\"token punctuation\">(<\/span>String userId<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<li>6.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u521b\u5efa\u4e00\u4e2a\u670d\u52a1\u7c7b\u00a0RecommendationService\uff0c\u7528\u4e8e\u5b9e\u73b0\u63a8\u8350\u7b97\u6cd5\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Autowired<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span>Service<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">import<\/span> java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>List<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>stream<span class=\"token punctuation\">.<\/span>Collectors<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@Service<\/span>\r\n<span class=\"token keyword\">public<\/span> class RecommendationService {\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private UserBehaviorRepository userBehaviorRepository<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ \u83b7\u53d6\u7528\u6237\u7684\u63a8\u8350\u5217\u8868<\/span>\r\n    <span class=\"token keyword\">public<\/span> List<span class=\"token operator\">&lt;<\/span>String<span class=\"token operator\">&gt;<\/span> getRecommendations<span class=\"token punctuation\">(<\/span>String userId<span class=\"token punctuation\">)<\/span> {\r\n        List<span class=\"token operator\">&lt;<\/span>UserBehavior<span class=\"token operator\">&gt;<\/span> behaviors <span class=\"token operator\">=<\/span> userBehaviorRepository<span class=\"token punctuation\">.<\/span>findByUserId<span class=\"token punctuation\">(<\/span>userId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n        <span class=\"token comment\">\/\/ \u7b80\u5355\u7684\u534f\u540c\u8fc7\u6ee4\u7b97\u6cd5\u793a\u4f8b\uff0c\u6839\u636e\u7528\u6237\u7684\u6d4f\u89c8\u8bb0\u5f55\u63a8\u8350\u76f8\u4f3c\u7684\u5546\u54c1<\/span>\r\n        List<span class=\"token operator\">&lt;<\/span>String<span class=\"token operator\">&gt;<\/span> viewedItems <span class=\"token operator\">=<\/span> behaviors<span class=\"token punctuation\">.<\/span>stream<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n                <span class=\"token punctuation\">.<\/span>filter<span class=\"token punctuation\">(<\/span>behavior <span class=\"token operator\">-<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token string\">\"view\"<\/span><span class=\"token punctuation\">.<\/span>equals<span class=\"token punctuation\">(<\/span>behavior<span class=\"token punctuation\">.<\/span>getBehaviorType<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 punctuation\">.<\/span>map<span class=\"token punctuation\">(<\/span>UserBehavior::getItemId<span class=\"token punctuation\">)<\/span>\r\n                <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\r\n        <span class=\"token comment\">\/\/ \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u66f4\u590d\u6742\u7684\u7b97\u6cd5\uff0c\u5982\u77e9\u9635\u5206\u89e3\u3001\u6df1\u5ea6\u5b66\u4e60\u7b49<\/span>\r\n        <span class=\"token keyword\">return<\/span> viewedItems<span class=\"token punctuation\">.<\/span>stream<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n                <span class=\"token punctuation\">.<\/span><span class=\"token keyword\">distinct<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n                <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    }\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<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<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u521b\u5efa\u4e00\u4e2a\u63a7\u5236\u5668\u7c7b\u00a0RecommendationController\uff0c\u7528\u4e8e\u8fd4\u56de\u63a8\u8350\u5217\u8868\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\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>beans<span class=\"token punctuation\">.<\/span>factory<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span>Autowired<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token keyword\">import<\/span> org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>web<span class=\"token punctuation\">.<\/span>bind<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token keyword\">import<\/span> java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>List<span class=\"token punctuation\">;<\/span>\r\n\r\n<span class=\"token variable\">@RestController<\/span>\r\n<span class=\"token variable\">@RequestMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\/api\/recommendations\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token keyword\">public<\/span> class RecommendationController {\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private RecommendationService recommendationService<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token comment\">\/\/ \u8fd4\u56de\u7528\u6237\u7684\u63a8\u8350\u5217\u8868<\/span>\r\n    <span class=\"token variable\">@GetMapping<\/span>\r\n    <span class=\"token keyword\">public<\/span> List<span class=\"token operator\">&lt;<\/span>String<span class=\"token operator\">&gt;<\/span> getRecommendations<span class=\"token punctuation\">(<\/span><span class=\"token variable\">@RequestParam<\/span> String userId<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> recommendationService<span class=\"token punctuation\">.<\/span>getRecommendations<span class=\"token punctuation\">(<\/span>userId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\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<li>17.<\/li>\n<li>18.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u901a\u8fc7\u4ee5\u4e0a\u4ee3\u7801\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u63a8\u8350\u7cfb\u7edf\u3002\u7528\u6237\u7684\u884c\u4e3a\u6570\u636e\u5b58\u50a8\u5728MongoDB\u4e2d\uff0c\u63a8\u8350\u7b97\u6cd5\u57fa\u4e8e\u8fd9\u4e9b\u6570\u636e\u751f\u6210\u63a8\u8350\u5217\u8868\u3002<\/p>\n<h4>\u9762\u4e34\u6311\u6218\u4ee5\u53ca\u76f8\u5e94\u7684\u89e3\u51b3\u529e\u6cd5<\/h4>\n<p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u4f7f\u7528MongoDB\u8fdb\u884cAI\u548c\u5927\u6570\u636e\u5904\u7406\u65f6\u53ef\u80fd\u4f1a\u9762\u4e34\u4e00\u4e9b\u6311\u6218\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u6311\u6218\u53ca\u5176\u89e3\u51b3\u529e\u6cd5\uff1a<\/p>\n<h5>\u6311\u62181\uff1a\u6570\u636e\u91cf\u5927\uff0c\u67e5\u8be2\u6027\u80fd\u4e0b\u964d<\/h5>\n<p>\u89e3\u51b3\u529e\u6cd5\uff1a<\/p>\n<ul data-id=\"u738a58b-0hJAf02V\">\n<li 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