{"id":27285,"date":"2025-09-26T08:30:51","date_gmt":"2025-09-26T00:30:51","guid":{"rendered":"https:\/\/aif.amtbbs.org\/?p=27285"},"modified":"2025-09-26T08:30:51","modified_gmt":"2025-09-26T00:30:51","slug":"springai-redis%ef%bc%9a%e6%9e%84%e5%bb%ba%e9%ab%98%e6%80%a7%e8%83%bdrag%e9%97%ae%e7%ad%94%e7%b3%bb%e7%bb%9f%e7%9a%84%e6%9e%b6%e6%9e%84%e8%ae%be%e8%ae%a1%e4%b8%8e%e5%ae%9e%e6%88%98","status":"publish","type":"post","link":"https:\/\/aif.amtbbs.org\/index.php\/2025\/09\/26\/27285\/","title":{"rendered":"SpringAI + Redis\uff1a\u6784\u5efa\u9ad8\u6027\u80fdRAG\u95ee\u7b54\u7cfb\u7edf\u7684\u67b6\u6784\u8bbe\u8ba1\u4e0e\u5b9e\u6218"},"content":{"rendered":"<div class=\"article-desc\">Spring AI\u4e0eRedis\u7684\u7ed3\u5408\u4e3aJava\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u6784\u5efa\u9ad8\u6027\u80fdRAG\u7cfb\u7edf\u7684\u7406\u60f3\u65b9\u6848\u3002\u901a\u8fc7\u672c\u6587\u4ecb\u7ecd\u7684\u67b6\u6784\u8bbe\u8ba1\u548c\u5b9e\u73b0\u65b9\u6848\uff0c\u4f01\u4e1a\u53ef\u4ee5\u5feb\u901f\u642d\u5efa\u5c5e\u4e8e\u81ea\u5df1\u7684\u667a\u80fd\u95ee\u7b54\u7cfb\u7edf\uff0c\u663e\u8457\u63d0\u5347\u77e5\u8bc6\u7ba1\u7406\u6548\u7387\u3002<\/div>\n<div id=\"postspictures\" class=\"article-content\">\n<div id=\"container\" class=\"container am-engine\" data-v-01a18e2f=\"\" data-element=\"root\">\n<h2>\u5f15\u8a00\uff1aRAG\u6280\u672f\u4e3a\u4f55\u6210\u4e3a\u4f01\u4e1aAI\u5e94\u7528\u9996\u9009<\/h2>\n<blockquote><p>\u5b9e\u73b0\u6210\u672c\u964d\u4f4e\u5343\u500d\u3001\u54cd\u5e94\u901f\u5ea6\u79d2\u7ea7\u7684\u4f01\u4e1a\u7ea7\u77e5\u8bc6\u5e93\u89e3\u51b3\u65b9\u6848<\/p><\/blockquote>\n<p>\u5728\u5f53\u524dAI\u6280\u672f\u98de\u901f\u53d1\u5c55\u7684\u80cc\u666f\u4e0b\uff0c\u4f01\u4e1a\u9762\u4e34\u7740\u4e00\u4e2a\u6838\u5fc3\u6311\u6218\uff1a\u5982\u4f55\u8ba9\u5927\u8bed\u8a00\u6a21\u578b\uff08LLM\uff09\u51c6\u786e\u638c\u63e1\u4f01\u4e1a\u5185\u90e8\u77e5\u8bc6\u5e76\u907f\u514d\u4ea7\u751f\u5e7b\u89c9\uff08Hallucination\uff09\uff1f\u68c0\u7d22\u589e\u5f3a\u751f\u6210\uff08Retrieval-Augmented Generation\uff0cRAG\uff09\u6280\u672f\u5e94\u8fd0\u800c\u751f\uff0c\u5b83\u901a\u8fc7\u5c06\u4fe1\u606f\u68c0\u7d22\u4e0e\u751f\u6210\u6a21\u578b\u76f8\u7ed3\u5408\uff0c\u6709\u6548\u89e3\u51b3\u4e86\u8fd9\u4e00\u96be\u9898\u3002<\/p>\n<p>Spring AI\u4f5c\u4e3aSpring\u5b98\u65b9\u63a8\u51fa\u7684AI\u5f00\u53d1\u6846\u67b6\uff0c\u4e3aJava\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u6784\u5efaAI\u5e94\u7528\u7684\u6807\u51c6\u5316\u65b9\u6848\u3002\u7ed3\u5408Redis\u8fd9\u4e00\u9ad8\u6027\u80fd\u5411\u91cf\u6570\u636e\u5e93\uff0c\u6211\u4eec\u53ef\u4ee5\u6784\u5efa\u51fa\u54cd\u5e94\u8fc5\u901f\u3001\u6210\u672c\u53ef\u63a7\u3001\u6613\u4e8e\u7ef4\u62a4\u7684RAG\u95ee\u7b54\u7cfb\u7edf\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8\u8fd9\u4e00\u6280\u672f\u7ec4\u5408\u7684\u67b6\u6784\u8bbe\u8ba1\u3001\u6838\u5fc3\u5b9e\u73b0\u548c\u4f18\u5316\u7b56\u7565\u3002<\/p>\n<h2>\u4e00\u3001RAG\u6280\u672f\u67b6\u6784\u8bbe\u8ba1<\/h2>\n<h3>1.1 \u7cfb\u7edf\u6574\u4f53\u67b6\u6784<\/h3>\n<p>\u57fa\u4e8eSpring AI\u548cRedis\u7684RAG\u7cfb\u7edf\u4e3b\u8981\u5305\u542b\u4ee5\u4e0b\u7ec4\u4ef6\uff1a<\/p>\n<p><img data-dominant-color=\"eff0f7\" data-has-transparency=\"false\" style=\"--dominant-color: #eff0f7;\" loading=\"lazy\" decoding=\"async\" class=\"not-transparent alignnone size-full wp-image-27286\" src=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/09\/b33c0fe594d86e174968836ab38d18becd040d.png\" width=\"277\" height=\"548\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" srcset=\"https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/09\/b33c0fe594d86e174968836ab38d18becd040d.png 277w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/09\/b33c0fe594d86e174968836ab38d18becd040d-152x300.png 152w, https:\/\/aiforumimage.oss-cn-shanghai.aliyuncs.com\/wp-content\/uploads\/2025\/09\/b33c0fe594d86e174968836ab38d18becd040d-76x150.png 76w\" sizes=\"auto, (max-width: 277px) 100vw, 277px\" \/><span class=\"data-image-title\">\u56fe\u7247<\/span><\/p>\n<h3>1.2 \u6280\u672f\u6808\u9009\u578b\u4f9d\u636e<\/h3>\n<ul data-id=\"u738a58b-YEleRCJd\">\n<li data-id=\"ld70c578-QbeUXbHR\">Spring AI\uff1a\u63d0\u4f9b\u7edf\u4e00\u7684AI\u5e94\u7528\u5f00\u53d1\u63a5\u53e3\uff0c\u652f\u6301\u591a\u79cd\u5927\u6a21\u578b\u548c\u5411\u91cf\u6570\u636e\u5e93<\/li>\n<li data-id=\"ld70c578-DEk89P15\">Redis Stack\uff1a\u5177\u5907\u5411\u91cf\u641c\u7d22\u80fd\u529b\u7684\u9ad8\u6027\u80fd\u5185\u5b58\u6570\u636e\u5e93\uff0c\u9002\u5408\u5b9e\u65f6\u68c0\u7d22\u573a\u666f<\/li>\n<li data-id=\"ld70c578-28SXknMd\">OpenAI API\/\u672c\u5730\u6a21\u578b\uff1a\u5e73\u8861\u6027\u80fd\u4e0e\u6210\u672c\u7684\u9700\u6c42<\/li>\n<\/ul>\n<h2>\u4e8c\u3001\u73af\u5883\u51c6\u5907\u4e0e\u6838\u5fc3\u914d\u7f6e<\/h2>\n<h3>2.1 \u9879\u76ee\u4f9d\u8d56\u914d\u7f6e<\/h3>\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>dependencies<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>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>web<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>org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>ai<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>ai<span class=\"token operator\">-<\/span>openai<span class=\"token operator\">-<\/span>spring<span class=\"token operator\">-<\/span>boot<span class=\"token operator\">-<\/span>starter<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><span class=\"token operator\">!<\/span><span class=\"token comment\">-- Redis \u5411\u91cf\u5b58\u50a8 --&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>org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>ai<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>ai<span class=\"token operator\">-<\/span>starter<span class=\"token operator\">-<\/span>vector<span class=\"token operator\">-<\/span>store<span class=\"token operator\">-<\/span>redis<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>org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>ai<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>ai<span class=\"token operator\">-<\/span>redis<span class=\"token operator\">-<\/span>spring<span class=\"token operator\">-<\/span>boot<span class=\"token operator\">-<\/span>starter<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>org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>ai<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>ai<span class=\"token operator\">-<\/span>pdf<span class=\"token operator\">-<\/span>document<span class=\"token operator\">-<\/span>reader<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><span class=\"token operator\">!<\/span><span class=\"token comment\">-- \u6587\u6863\u89e3\u6790\uff08\u652f\u6301 Word\u3001Excel \u7b49\uff09 --&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>org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>ai<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>ai<span class=\"token operator\">-<\/span>tika<span class=\"token operator\">-<\/span>document<span class=\"token operator\">-<\/span>reader<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><span class=\"token operator\">\/<\/span>dependencies<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<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<h3>2.2 \u5e94\u7528\u914d\u7f6e\u6587\u4ef6<\/h3>\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 comment\"># application.yml<\/span>\r\nspring:\r\n  ai:\r\n    openai:\r\n      embedding:\r\n        options:\r\n          model: <span class=\"token keyword\">text<\/span><span class=\"token operator\">-<\/span>embedding<span class=\"token operator\">-<\/span>v4 <span class=\"token comment\"># \u4f7f\u7528\u767e\u70bc\u5e73\u53f0\u7684\u5d4c\u5165\u6a21\u578b<\/span>\r\n    vectorstore:\r\n      redis:\r\n        uri: redis:<span class=\"token comment\">\/\/localhost:6379<\/span>\r\n        <span class=\"token keyword\">index<\/span>: knowledge<span class=\"token operator\">-<\/span>base\r\n        prefix: <span class=\"token string\">\"doc:\"<\/span>\r\n        initialize<span class=\"token operator\">-<\/span><span class=\"token keyword\">schema<\/span>: <span class=\"token boolean\">true<\/span>\r\n\r\n\r\nserver:\r\n  port: <span class=\"token number\">8080<\/span><\/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<li>14.<\/li>\n<li>15.<\/li>\n<li>16.<\/li>\n<li>17.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2>\u4e09\u3001\u6838\u5fc3\u5b9e\u73b0\u6e90\u7801\u89e3\u6790<\/h2>\n<h3>3.1 \u6570\u636e\u52a0\u8f7d\u670d\u52a1\u5b9e\u73b0<\/h3>\n<p>\u77e5\u8bc6\u5e93\u7684\u521d\u59cb\u5316\u662fRAG\u7cfb\u7edf\u7684\u57fa\u7840\uff0c\u9700\u8981\u5c06\u6587\u6863\u8f6c\u6362\u4e3a\u5411\u91cf\u5e76\u5b58\u50a8\u5230Redis\u4e2d\u3002<\/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 variable\">@Service<\/span>\r\n<span class=\"token variable\">@Slf4j<\/span>\r\n<span class=\"token keyword\">public<\/span> class DataLoaderService {\r\n\r\n\r\n    <span class=\"token variable\">@Value<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"classpath:knowledge\/*.pdf\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    private Resource<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> knowledgeResources<span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private VectorStore vectorStore<span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n    <span class=\"token variable\">@PostConstruct<\/span>\r\n    <span class=\"token keyword\">public<\/span> void initializeKnowledgeBase<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> {\r\n        log<span class=\"token punctuation\">.<\/span>info<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5f00\u59cb\u521d\u59cb\u5316\u77e5\u8bc6\u5e93...\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>Resource resource : knowledgeResources<span class=\"token punctuation\">)<\/span> {\r\n            try {\r\n                <span class=\"token comment\">\/\/ \u4f7f\u7528PDF\u6587\u6863\u9605\u8bfb\u5668<\/span>\r\n                PagePdfDocumentReader pdfReader <span class=\"token operator\">=<\/span> new PagePdfDocumentReader<span class=\"token punctuation\">(<\/span>\r\n                    resource<span class=\"token punctuation\">,<\/span>\r\n                    PdfDocumentReaderConfig<span class=\"token punctuation\">.<\/span>builder<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n                        <span class=\"token punctuation\">.<\/span>withPagesPerDocument<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span>\r\n                        <span class=\"token punctuation\">.<\/span>build<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n                <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n                <span class=\"token comment\">\/\/ \u6587\u672c\u5206\u5272\u5668\uff0c\u786e\u4fdd\u6587\u6863\u5757\u5927\u5c0f\u5408\u9002<\/span>\r\n                TokenTextSplitter textSplitter <span class=\"token operator\">=<\/span> new TokenTextSplitter<span class=\"token punctuation\">(<\/span>\r\n                    <span class=\"token number\">1000<\/span><span class=\"token punctuation\">,<\/span>  <span class=\"token comment\">\/\/ \u6700\u5927token\u6570<\/span>\r\n                    <span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span>   <span class=\"token comment\">\/\/ \u91cd\u53e0token\u6570<\/span>\r\n                    <span class=\"token boolean\">true<\/span>   <span class=\"token comment\">\/\/ \u5206\u6bb5\u5b58\u50a8<\/span>\r\n                <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n                <span class=\"token comment\">\/\/ \u8bfb\u53d6\u3001\u5206\u5272\u5e76\u5b58\u50a8\u6587\u6863<\/span>\r\n                List<span class=\"token operator\">&lt;<\/span>Document<span class=\"token operator\">&gt;<\/span> documents <span class=\"token operator\">=<\/span> pdfReader<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n                List<span class=\"token operator\">&lt;<\/span>Document<span class=\"token operator\">&gt;<\/span> chunks <span class=\"token operator\">=<\/span> textSplitter<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">apply<\/span><span class=\"token punctuation\">(<\/span>documents<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n                vectorStore<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">add<\/span><span class=\"token punctuation\">(<\/span>chunks<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n                log<span class=\"token punctuation\">.<\/span>info<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5df2\u52a0\u8f7d\u6587\u6863: {}\uff0c\u5206\u5272\u4e3a {} \u4e2a\u5757\"<\/span><span class=\"token punctuation\">,<\/span> \r\n                    resource<span class=\"token punctuation\">.<\/span>getFilename<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> chunks<span class=\"token punctuation\">.<\/span>size<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n            } catch <span class=\"token punctuation\">(<\/span>Exception e<span class=\"token punctuation\">)<\/span> {\r\n                log<span class=\"token punctuation\">.<\/span>error<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u52a0\u8f7d\u6587\u6863\u5931\u8d25: {}\"<\/span><span class=\"token punctuation\">,<\/span> resource<span class=\"token punctuation\">.<\/span>getFilename<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n            }\r\n        }\r\n        log<span class=\"token punctuation\">.<\/span>info<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u77e5\u8bc6\u5e93\u521d\u59cb\u5316\u5b8c\u6210\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\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<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<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<li>52.<\/li>\n<li>53.<\/li>\n<li>54.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3>3.2 RAG\u670d\u52a1\u6838\u5fc3\u903b\u8f91<\/h3>\n<p>RAG\u670d\u52a1\u7684\u6838\u5fc3\u5728\u4e8e\u5b9e\u73b0\u68c0\u7d22\u4e0e\u751f\u6210\u7684\u534f\u540c\u5de5\u4f5c\u3002<\/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 variable\">@Service<\/span>\r\n<span class=\"token variable\">@Slf4j<\/span>\r\n<span class=\"token keyword\">public<\/span> class RagService {\r\n\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private VectorStore vectorStore<span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private ChatClient chatClient<span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n    <span class=\"token comment\">\/\/ \u76f8\u4f3c\u5ea6\u641c\u7d22\u914d\u7f6e<\/span>\r\n    private static final <span class=\"token keyword\">int<\/span> TOP_K <span class=\"token operator\">=<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span>\r\n    private static final <span class=\"token keyword\">double<\/span> SIMILARITY_THRESHOLD <span class=\"token operator\">=<\/span> <span class=\"token number\">0.7<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n    <span class=\"token keyword\">public<\/span> Generation retrieve<span class=\"token punctuation\">(<\/span>String userQuery<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token comment\">\/\/ 1. \u5411\u91cf\u76f8\u4f3c\u5ea6\u641c\u7d22<\/span>\r\n        SearchRequest searchRequest <span class=\"token operator\">=<\/span> SearchRequest<span class=\"token punctuation\">.<\/span>query<span class=\"token punctuation\">(<\/span>userQuery<span class=\"token punctuation\">)<\/span>\r\n            <span class=\"token punctuation\">.<\/span>withTopK<span class=\"token punctuation\">(<\/span>TOP_K<span class=\"token punctuation\">)<\/span>\r\n            <span class=\"token punctuation\">.<\/span>withSimilarityThreshold<span class=\"token punctuation\">(<\/span>SIMILARITY_THRESHOLD<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        List<span class=\"token operator\">&lt;<\/span>Document<span class=\"token operator\">&gt;<\/span> relevantDocs <span class=\"token operator\">=<\/span> vectorStore<span class=\"token punctuation\">.<\/span>similaritySearch<span class=\"token punctuation\">(<\/span>searchRequest<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>relevantDocs<span class=\"token punctuation\">.<\/span>isEmpty<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n            <span class=\"token keyword\">return<\/span> new Generation<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u672a\u627e\u5230\u76f8\u5173\u4fe1\u606f\uff0c\u8bf7\u5c1d\u8bd5\u5176\u4ed6\u95ee\u9898\u3002\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        }\r\n\r\n\r\n        <span class=\"token comment\">\/\/ 2. \u6784\u5efa\u589e\u5f3a\u63d0\u793a<\/span>\r\n        String context <span class=\"token operator\">=<\/span> buildContext<span class=\"token punctuation\">(<\/span>relevantDocs<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        String enhancedPrompt <span class=\"token operator\">=<\/span> buildEnhancedPrompt<span class=\"token punctuation\">(<\/span>userQuery<span class=\"token punctuation\">,<\/span> context<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        <span class=\"token comment\">\/\/ 3. \u8c03\u7528LLM\u751f\u6210\u56de\u7b54<\/span>\r\n        Prompt prompt <span class=\"token operator\">=<\/span> new Prompt<span class=\"token punctuation\">(<\/span>enhancedPrompt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        ChatResponse response <span class=\"token operator\">=<\/span> chatClient<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">call<\/span><span class=\"token punctuation\">(<\/span>prompt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        <span class=\"token keyword\">return<\/span> response<span class=\"token punctuation\">.<\/span>getResult<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n\r\n    private String buildContext<span class=\"token punctuation\">(<\/span>List<span class=\"token operator\">&lt;<\/span>Document<span class=\"token operator\">&gt;<\/span> documents<span class=\"token punctuation\">)<\/span> {\r\n        StringBuilder contextBuilder <span class=\"token operator\">=<\/span> new StringBuilder<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        contextBuilder<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u76f8\u5173\u53c2\u8003\u4fe1\u606f\uff1a\\n\\n\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> documents<span class=\"token punctuation\">.<\/span>size<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">+<\/span><span class=\"token operator\">+<\/span><span class=\"token punctuation\">)<\/span> {\r\n            Document doc <span class=\"token operator\">=<\/span> documents<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n            contextBuilder<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span>String<span class=\"token punctuation\">.<\/span><span class=\"token function\">format<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"[%d] %s\\n\\n\"<\/span><span class=\"token punctuation\">,<\/span> i <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> doc<span class=\"token punctuation\">.<\/span>getText<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        }\r\n\r\n\r\n        <span class=\"token keyword\">return<\/span> contextBuilder<span class=\"token punctuation\">.<\/span>toString<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n\r\n    private String buildEnhancedPrompt<span class=\"token punctuation\">(<\/span>String userQuery<span class=\"token punctuation\">,<\/span> String context<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> String<span class=\"token punctuation\">.<\/span><span class=\"token function\">format<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\"\"\r\n            \u4f60\u662f\u4e00\u4e2a\u4e13\u4e1a\u7684\u5ba2\u670d\u52a9\u624b\uff0c\u8bf7\u6839\u636e\u4ee5\u4e0b\u53c2\u8003\u4fe1\u606f\u56de\u7b54\u95ee\u9898\u3002\r\n            \u5982\u679c\u53c2\u8003\u4fe1\u606f\u4e0d\u8db3\u4ee5\u56de\u7b54\u95ee\u9898\uff0c\u8bf7\u660e\u786e\u8bf4\u660e\u3002\r\n            \u4e0d\u8981\u7f16\u9020\u4fe1\u606f\uff0c\u4fdd\u6301\u56de\u7b54\u51c6\u786e\u3001\u7b80\u6d01\u3002\r\n\r\n\r\n            %s\r\n\r\n\r\n            \u7528\u6237\u95ee\u9898\uff1a%s\r\n\r\n\r\n            \u8bf7\u6839\u636e\u4ee5\u4e0a\u4fe1\u606f\u63d0\u4f9b\u56de\u7b54\uff1a\r\n            \"\"\"<\/span><span class=\"token punctuation\">,<\/span> context<span class=\"token punctuation\">,<\/span> userQuery<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<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<li>52.<\/li>\n<li>53.<\/li>\n<li>54.<\/li>\n<li>55.<\/li>\n<li>56.<\/li>\n<li>57.<\/li>\n<li>58.<\/li>\n<li>59.<\/li>\n<li>60.<\/li>\n<li>61.<\/li>\n<li>62.<\/li>\n<li>63.<\/li>\n<li>64.<\/li>\n<li>65.<\/li>\n<li>66.<\/li>\n<li>67.<\/li>\n<li>68.<\/li>\n<li>69.<\/li>\n<li>70.<\/li>\n<li>71.<\/li>\n<li>72.<\/li>\n<li>73.<\/li>\n<li>74.<\/li>\n<li>75.<\/li>\n<li>76.<\/li>\n<li>77.<\/li>\n<li>78.<\/li>\n<li>79.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3>3.3 \u63a7\u5236\u5668\u5c42\u5b9e\u73b0<\/h3>\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 variable\">@RestController<\/span>\r\n<span class=\"token variable\">@RequestMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\/api\/rag\"<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token variable\">@Slf4j<\/span>\r\n<span class=\"token keyword\">public<\/span> class RagController {\r\n\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private RagService ragService<span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n    <span class=\"token variable\">@PostMapping<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\/chat\"<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token keyword\">public<\/span> ResponseEntity<span class=\"token operator\">&lt;<\/span>ChatResponse<span class=\"token operator\">&gt;<\/span> chat<span class=\"token punctuation\">(<\/span><span class=\"token variable\">@RequestBody<\/span> ChatRequest request<span class=\"token punctuation\">)<\/span> {\r\n        try {\r\n            long startTime <span class=\"token operator\">=<\/span> System<span class=\"token punctuation\">.<\/span>currentTimeMillis<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n            Generation generation <span class=\"token operator\">=<\/span> ragService<span class=\"token punctuation\">.<\/span>retrieve<span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">.<\/span>getQuestion<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n            long responseTime <span class=\"token operator\">=<\/span> System<span class=\"token punctuation\">.<\/span>currentTimeMillis<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">-<\/span> startTime<span class=\"token punctuation\">;<\/span>\r\n            log<span class=\"token punctuation\">.<\/span>info<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u95ee\u9898\u5904\u7406\u5b8c\u6210: \u95ee\u9898\u957f\u5ea6={}, \u54cd\u5e94\u65f6\u95f4={}ms\"<\/span><span class=\"token punctuation\">,<\/span> \r\n                request<span class=\"token punctuation\">.<\/span>getQuestion<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> responseTime<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n            ChatResponse response <span class=\"token operator\">=<\/span> new ChatResponse<span class=\"token punctuation\">(<\/span>\r\n                generation<span class=\"token punctuation\">.<\/span>getOutput<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>getContent<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n                responseTime\r\n            <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n            <span class=\"token keyword\">return<\/span> ResponseEntity<span class=\"token punctuation\">.<\/span>ok<span class=\"token punctuation\">(<\/span>response<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        } catch <span class=\"token punctuation\">(<\/span>Exception e<span class=\"token punctuation\">)<\/span> {\r\n            log<span class=\"token punctuation\">.<\/span>error<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5904\u7406\u95ee\u9898\u65f6\u53d1\u751f\u9519\u8bef\"<\/span><span class=\"token punctuation\">,<\/span> e<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n            <span class=\"token keyword\">return<\/span> ResponseEntity<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">status<\/span><span class=\"token punctuation\">(<\/span>HttpStatus<span class=\"token punctuation\">.<\/span>INTERNAL_SERVER_ERROR<span class=\"token punctuation\">)<\/span>\r\n                <span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">(<\/span>new ChatResponse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u7cfb\u7edf\u7e41\u5fd9\uff0c\u8bf7\u7a0d\u540e\u91cd\u8bd5\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        }\r\n    }\r\n\r\n\r\n    <span class=\"token comment\">\/\/ DTO\u7c7b<\/span>\r\n    <span class=\"token variable\">@Data<\/span>\r\n    <span class=\"token variable\">@AllArgsConstructor<\/span>\r\n    <span class=\"token keyword\">public<\/span> static class ChatRequest {\r\n        private String question<span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n\r\n    <span class=\"token variable\">@Data<\/span>\r\n    <span class=\"token variable\">@AllArgsConstructor<\/span>\r\n    <span class=\"token keyword\">public<\/span> static class ChatResponse {\r\n        private String answer<span class=\"token punctuation\">;<\/span>\r\n        private long responseTimeMs<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<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<li>52.<\/li>\n<li>53.<\/li>\n<li>54.<\/li>\n<li>55.<\/li>\n<li>56.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2>\u56db\u3001\u9ad8\u7ea7\u7279\u6027\u4e0e\u4f18\u5316\u7b56\u7565<\/h2>\n<h3>4.1 \u4f7f\u7528QuestionAnswerAdvisor\u4f18\u5316RAG\u6d41\u7a0b<\/h3>\n<p>Spring AI\u63d0\u4f9b\u4e86Advisor\u63a5\u53e3\u6765\u6807\u51c6\u5316RAG\u6d41\u7a0b\u7684\u5b9e\u73b0\u3002<\/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 variable\">@Configuration<\/span>\r\n<span class=\"token variable\">@Slf4j<\/span>\r\n<span class=\"token keyword\">public<\/span> class RagAdvisorConfig {\r\n\r\n\r\n    <span class=\"token variable\">@Bean<\/span>\r\n    <span class=\"token keyword\">public<\/span> QuestionAnswerAdvisor questionAnswerAdvisor<span class=\"token punctuation\">(<\/span>\r\n            VectorStore vectorStore<span class=\"token punctuation\">,<\/span> \r\n            ChatClient chatClient<span class=\"token punctuation\">)<\/span> {\r\n\r\n\r\n        <span class=\"token keyword\">return<\/span> new QuestionAnswerAdvisor<span class=\"token punctuation\">(<\/span>vectorStore<span class=\"token punctuation\">,<\/span> chatClient<span class=\"token punctuation\">)<\/span> {\r\n            <span class=\"token variable\">@Override<\/span>\r\n            <span class=\"token keyword\">public<\/span> Prompt before<span class=\"token punctuation\">(<\/span>String question<span class=\"token punctuation\">)<\/span> {\r\n                <span class=\"token comment\">\/\/ \u81ea\u5b9a\u4e49\u68c0\u7d22\u903b\u8f91<\/span>\r\n                SearchRequest request <span class=\"token operator\">=<\/span> SearchRequest<span class=\"token punctuation\">.<\/span>query<span class=\"token punctuation\">(<\/span>question<span class=\"token punctuation\">)<\/span>\r\n                    <span class=\"token punctuation\">.<\/span>withTopK<span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span>\r\n                    <span class=\"token punctuation\">.<\/span>withSimilarityThreshold<span class=\"token punctuation\">(<\/span><span class=\"token number\">0.75<\/span><span class=\"token punctuation\">)<\/span>\r\n                    <span class=\"token punctuation\">.<\/span>withFilterExpression<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"category == 'technical'\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n                List<span class=\"token operator\">&lt;<\/span>Document<span class=\"token operator\">&gt;<\/span> docs <span class=\"token operator\">=<\/span> vectorStore<span class=\"token punctuation\">.<\/span>similaritySearch<span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n                <span class=\"token comment\">\/\/ \u6784\u5efa\u7cfb\u7edf\u6d88\u606f<\/span>\r\n                SystemMessage systemMessage <span class=\"token operator\">=<\/span> new SystemMessage<span class=\"token punctuation\">(<\/span>\r\n                    <span class=\"token string\">\"\u4f60\u662f\u4e00\u4e2a\u6280\u672f\u4e13\u5bb6\uff0c\u8bf7\u6839\u636e\u4ee5\u4e0b\u6587\u6863\u56de\u7b54\u95ee\u9898\uff1a\\n\"<\/span> <span class=\"token operator\">+<\/span> \r\n                    docs<span class=\"token punctuation\">.<\/span>stream<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n                        <span class=\"token punctuation\">.<\/span>map<span class=\"token punctuation\">(<\/span>Document::getText<span class=\"token punctuation\">)<\/span>\r\n                        <span class=\"token punctuation\">.<\/span>collect<span class=\"token punctuation\">(<\/span>Collectors<span class=\"token punctuation\">.<\/span>joining<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\\n\\n\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\r\n                <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n                UserMessage userMessage <span class=\"token operator\">=<\/span> new UserMessage<span class=\"token punctuation\">(<\/span>question<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n                <span class=\"token keyword\">return<\/span> new Prompt<span class=\"token punctuation\">(<\/span>List<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">of<\/span><span class=\"token punctuation\">(<\/span>systemMessage<span class=\"token punctuation\">,<\/span> userMessage<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n            }\r\n\r\n\r\n            <span class=\"token variable\">@Override<\/span>\r\n            <span class=\"token keyword\">public<\/span> String <span class=\"token keyword\">after<\/span><span class=\"token punctuation\">(<\/span>ChatResponse response<span class=\"token punctuation\">)<\/span> {\r\n                <span class=\"token comment\">\/\/ \u540e\u5904\u7406\uff1a\u6dfb\u52a0\u5f15\u7528\u548c\u9a8c\u8bc1<\/span>\r\n                String answer <span class=\"token operator\">=<\/span> response<span class=\"token punctuation\">.<\/span>getResult<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>getOutput<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>getContent<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n                <span class=\"token keyword\">return<\/span> answer <span class=\"token operator\">+<\/span> <span class=\"token string\">\"\\n\\n*\u4ee5\u4e0a\u4fe1\u606f\u4ec5\u4f9b\u53c2\u8003*\"<\/span><span class=\"token punctuation\">;<\/span>\r\n            }\r\n        }<span class=\"token punctuation\">;<\/span>\r\n    }\r\n}<\/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<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<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h3>4.2 \u6027\u80fd\u4f18\u5316\u5b9e\u8df5<\/h3>\n<h4>\u5411\u91cf\u7d22\u5f15\u4f18\u5316<\/h4>\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  ai:\r\n    vectorstore:\r\n      redis:\r\n        <span class=\"token keyword\">index<\/span><span class=\"token operator\">-<\/span><span class=\"token keyword\">type<\/span>: HNSW  <span class=\"token comment\"># \u4f7f\u7528\u5206\u5c42\u5bfc\u822a\u5c0f\u4e16\u754c\u7b97\u6cd5<\/span>\r\n        distance<span class=\"token operator\">-<\/span>metric: COSINE  <span class=\"token comment\"># \u4f59\u5f26\u76f8\u4f3c\u5ea6<\/span>\r\n        <span class=\"token keyword\">index<\/span><span class=\"token operator\">-<\/span>options: <span class=\"token operator\">|<\/span>\r\n          {\r\n            <span class=\"token string\">\"EF_CONSTRUCTION\"<\/span>: <span class=\"token number\">200<\/span><span class=\"token punctuation\">,<\/span>\r\n            <span class=\"token string\">\"M\"<\/span>: <span class=\"token number\">16<\/span>\r\n          }<\/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<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<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h4>\u7f13\u5b58\u7b56\u7565\u5b9e\u73b0<\/h4>\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 variable\">@Service<\/span>\r\n<span class=\"token variable\">@Slf4j<\/span>\r\n<span class=\"token keyword\">public<\/span> class CachingRagService {\r\n\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private RagService ragService<span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n    <span class=\"token variable\">@Autowired<\/span>\r\n    private RedisTemplate<span class=\"token operator\">&lt;<\/span>String<span class=\"token punctuation\">,<\/span> String<span class=\"token operator\">&gt;<\/span> redisTemplate<span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n    private static final long CACHE_TTL <span class=\"token operator\">=<\/span> <span class=\"token number\">3600<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ 1\u5c0f\u65f6<\/span>\r\n\r\n\r\n    <span class=\"token keyword\">public<\/span> Generation retrieveWithCache<span class=\"token punctuation\">(<\/span>String userQuery<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token comment\">\/\/ \u751f\u6210\u67e5\u8be2\u6307\u7eb9\u4f5c\u4e3a\u7f13\u5b58\u952e<\/span>\r\n        String cacheKey <span class=\"token operator\">=<\/span> generateCacheKey<span class=\"token punctuation\">(<\/span>userQuery<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        <span class=\"token comment\">\/\/ \u5c1d\u8bd5\u4ece\u7f13\u5b58\u83b7\u53d6<\/span>\r\n        String cachedAnswer <span class=\"token operator\">=<\/span> redisTemplate<span class=\"token punctuation\">.<\/span>opsForValue<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span>cacheKey<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>cachedAnswer <span class=\"token operator\">!=<\/span> <span class=\"token boolean\">null<\/span><span class=\"token punctuation\">)<\/span> {\r\n            log<span class=\"token punctuation\">.<\/span>debug<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u7f13\u5b58\u547d\u4e2d: {}\"<\/span><span class=\"token punctuation\">,<\/span> cacheKey<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n            <span class=\"token keyword\">return<\/span> new Generation<span class=\"token punctuation\">(<\/span>cachedAnswer<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        }\r\n\r\n\r\n        <span class=\"token comment\">\/\/ \u7f13\u5b58\u672a\u547d\u4e2d\uff0c\u6267\u884cRAG\u6d41\u7a0b<\/span>\r\n        Generation generation <span class=\"token operator\">=<\/span> ragService<span class=\"token punctuation\">.<\/span>retrieve<span class=\"token punctuation\">(<\/span>userQuery<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\r\n        <span class=\"token comment\">\/\/ \u7f13\u5b58\u7ed3\u679c<\/span>\r\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>shouldCache<span class=\"token punctuation\">(<\/span>generation<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> {\r\n            redisTemplate<span class=\"token punctuation\">.<\/span>opsForValue<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">set<\/span><span class=\"token punctuation\">(<\/span>\r\n                cacheKey<span class=\"token punctuation\">,<\/span> \r\n                generation<span class=\"token punctuation\">.<\/span>getOutput<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>getContent<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>\r\n                Duration<span class=\"token punctuation\">.<\/span>ofSeconds<span class=\"token punctuation\">(<\/span>CACHE_TTL<span class=\"token punctuation\">)<\/span>\r\n            <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        }\r\n\r\n\r\n        <span class=\"token keyword\">return<\/span> generation<span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n\r\n    private String generateCacheKey<span class=\"token punctuation\">(<\/span>String query<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">\"rag:cache:\"<\/span> <span class=\"token operator\">+<\/span> <span class=\"token keyword\">Integer<\/span><span class=\"token punctuation\">.<\/span>toHexString<span class=\"token punctuation\">(<\/span>query<span class=\"token punctuation\">.<\/span>hashCode<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\r\n\r\n\r\n    private <span class=\"token keyword\">boolean<\/span> shouldCache<span class=\"token punctuation\">(<\/span>Generation generation<span class=\"token punctuation\">)<\/span> {\r\n        <span class=\"token comment\">\/\/ \u53ea\u7f13\u5b58\u9ad8\u8d28\u91cf\u7684\u56de\u7b54<\/span>\r\n        String content <span class=\"token operator\">=<\/span> generation<span class=\"token punctuation\">.<\/span>getOutput<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>getContent<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 operator\">!<\/span>content<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e0d\u786e\u5b9a\"<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span> <span class=\"token operator\">!<\/span>content<span class=\"token punctuation\">.<\/span><span class=\"token keyword\">contains<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u65e0\u6cd5\u56de\u7b54\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    }\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<li>25.<\/li>\n<li>26.<\/li>\n<li>27.<\/li>\n<li>28.<\/li>\n<li>29.<\/li>\n<li>30.<\/li>\n<li>31.<\/li>\n<li>32.<\/li>\n<li>33.<\/li>\n<li>34.<\/li>\n<li>35.<\/li>\n<li>36.<\/li>\n<li>37.<\/li>\n<li>38.<\/li>\n<li>39.<\/li>\n<li>40.<\/li>\n<li>41.<\/li>\n<li>42.<\/li>\n<li>43.<\/li>\n<li>44.<\/li>\n<li>45.<\/li>\n<li>46.<\/li>\n<li>47.<\/li>\n<li>48.<\/li>\n<li>49.<\/li>\n<li>50.<\/li>\n<li>51.<\/li>\n<li>52.<\/li>\n<li>53.<\/li>\n<li>54.<\/li>\n<li>55.<\/li>\n<li>56.<\/li>\n<li>57.<\/li>\n<li>58.<\/li>\n<\/ul>\n<div class=\"toolbar\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2>\u4e94\u3001\u5b9e\u6218\u6848\u4f8b\uff1a\u4f01\u4e1a\u77e5\u8bc6\u5e93\u95ee\u7b54\u7cfb\u7edf<\/h2>\n<h3>5.1 \u7cfb\u7edf\u7279\u8272\u529f\u80fd<\/h3>\n<p>\u57fa\u4e8eSpring AI\u548cRedis\u7684RAG\u7cfb\u7edf\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u8868\u73b0\u51fa\u8272\uff1a<\/p>\n<ol class=\"list-paddingleft-1\" start=\"1\" data-id=\"o70a67a5-h13XD23V\">\n<li data-id=\"ld70c578-0JQfm75a\">\u7cbe\u51c6\u95ee\u7b54\uff1a\u9488\u5bf9&#8221;\u516c\u53f8\u8bf7\u5047\u6d41\u7a0b\u662f\u4ec0\u4e48\uff1f&#8221;\u7b49\u95ee\u9898\uff0c\u80fd\u76f4\u63a5\u4ece\u5458\u5de5\u624b\u518c\u4e2d\u68c0\u7d22\u76f8\u5173\u4fe1\u606f\u751f\u6210\u51c6\u786e\u56de\u7b54<\/li>\n<li data-id=\"ld70c578-5pd9C223\">\u591a\u6587\u6863\u652f\u6301\uff1a\u652f\u6301PDF\u3001Word\u3001HTML\u7b49\u591a\u79cd\u683c\u5f0f\u6587\u6863\u7684\u81ea\u52a8\u5904\u7406\u548c\u5411\u91cf\u5316<\/li>\n<li 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