{"id":95303,"date":"2026-08-26T08:50:25","date_gmt":"2026-08-26T00:50:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/95303.html"},"modified":"2026-08-26T08:50:25","modified_gmt":"2026-08-26T00:50:25","slug":"%e4%bb%8e%e9%9b%b6%e6%9e%84%e5%bb%ba-java-%e6%99%ba%e8%83%bd%e4%bd%93-rag-%e7%b3%bb%e7%bb%9f%ef%bc%9amilvus-%e5%90%91%e9%87%8f%e6%95%b0%e6%8d%ae%e5%ba%93%e5%ae%9e%e6%88%98%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/95303.html","title":{"rendered":"\u4ece\u96f6\u6784\u5efa Java \u667a\u80fd\u4f53 RAG \u7cfb\u7edf\uff1aMilvus \u5411\u91cf\u6570\u636e\u5e93\u5b9e\u6218\u6307\u5357"},"content":{"rendered":"

🧑 \u535a\u4e3b\u7b80\u4ecb：CSDN\u535a\u5ba2\u4e13\u5bb6，\u300c\u5386\u4ee3\u6587\u5b66\u7f51\u300d（PC\u7aef\u53ef\u4ee5\u8bbf\u95ee：https:\/\/lidaiwenxue.com\/#\/?__c=1000，\u79fb\u52a8\u7aef\u53ef\u5173\u6ce8\u516c\u4f17\u53f7 \u201c \u5fc3\u6d77\u4e91\u56fe \u201d \u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u641c\u7d22\u201c\u5386\u4ee3\u6587\u5b66\u201d）\u603b\u67b6\u6784\u5e08，\u9996\u5e2d\u67b6\u6784\u5e08，\u4e5f\u662f\u8054\u5408\u521b\u59cb\u4eba！16\u5e74\u5de5\u4f5c\u7ecf\u9a8c，\u7cbe\u901aJava\u7f16\u7a0b，\u9ad8\u5e76\u53d1\u8bbe\u8ba1，\u5206\u5e03\u5f0f\u7cfb\u7edf\u67b6\u6784\u8bbe\u8ba1，Springboot\u548c\u5fae\u670d\u52a1，\u719f\u6089Linux，ESXI\u865a\u62df\u5316\u4ee5\u53ca\u4e91\u539f\u751fDocker\u548cK8s，\u70ed\u8877\u4e8e\u63a2\u7d22\u79d1\u6280\u7684\u8fb9\u754c，\u5e76\u5c06\u7406\u8bba\u77e5\u8bc6\u8f6c\u5316\u4e3a\u5b9e\u9645\u5e94\u7528\u3002\u4fdd\u6301\u5bf9\u65b0\u6280\u672f\u7684\u597d\u5947\u5fc3，\u4e50\u4e8e\u5206\u4eab\u6240\u5b66，\u5e0c\u671b\u901a\u8fc7\u6211\u7684\u5b9e\u8df5\u7ecf\u5386\u548c\u89c1\u89e3，\u542f\u53d1\u4ed6\u4eba\u7684\u521b\u65b0\u601d\u7ef4\u3002\u5728\u8fd9\u91cc，\u6211\u5e0c\u671b\u80fd\u4e0e\u5fd7\u540c\u9053\u5408\u7684\u670b\u53cb\u4ea4\u6d41\u63a2\u8ba8，\u5171\u540c\u8fdb\u6b65，\u4e00\u8d77\u5728\u6280\u672f\u7684\u4e16\u754c\u91cc\u4e0d\u65ad\u5b66\u4e60\u6210\u957f\u3002 🤝\u5546\u52a1\u5408\u4f5c：\u8bf7\u641c\u7d22\u6216\u626b\u7801\u5173\u6ce8\u5fae\u4fe1\u516c\u4f17\u53f7 \u201c \u5fc3\u6d77\u4e91\u56fe \u201d<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u4ece\u96f6\u6784\u5efa Java \u667a\u80fd\u4f53 RAG \u7cfb\u7edf：Milvus \u5411\u91cf\u6570\u636e\u5e93\u5b9e\u6218\u6307\u5357<\/h2>\n
\n

\u4e00\u3001\u5f15\u8a00<\/h3>\n

RAG（\u68c0\u7d22\u589e\u5f3a\u751f\u6210）\u901a\u8fc7\u4e3a\u5927\u8bed\u8a00\u6a21\u578b\u63d0\u4f9b\u5916\u90e8\u77e5\u8bc6\u5e93，\u89e3\u51b3\u4e86\u6a21\u578b\u77e5\u8bc6\u622a\u6b62\u65e5\u671f\u548c\u201c\u5e7b\u89c9\u201d\u95ee\u9898\u3002Milvus \u4f5c\u4e3a CNCF \u6bd5\u4e1a\u7684\u5411\u91cf\u6570\u636e\u5e93，\u63d0\u4f9b\u4e13\u4e1a\u7684\u5411\u91cf\u7d22\u5f15（HNSW\u3001IVF_FLAT \u7b49），\u53ef\u5b9e\u73b0\u767e\u4ebf\u6570\u636e\u7684\u6beb\u79d2\u7ea7\u68c0\u7d22\u3002<\/p>\n

\u672c\u6587\u6863\u5c06\u5e26\u4f60\u4f7f\u7528 Java + Spring Boot + Milvus \u4ece\u96f6\u6784\u5efa\u4e00\u4e2a\u4f01\u4e1a\u7ea7 RAG \u667a\u80fd\u95ee\u7b54\u7cfb\u7edf\u3002<\/p>\n

\n

\u4e8c\u3001\u73af\u5883\u51c6\u5907<\/h3>\n

2.1 \u5b89\u88c5 Milvus（\u63a8\u8350 Docker \u65b9\u5f0f）<\/h4>\n

# \u4e0b\u8f7d docker-compose.yml<\/span>
\nwget<\/span> https:\/\/github.com\/milvus-io\/milvus\/releases\/download\/v2.6.22\/milvus-standalone-docker-compose.yml -O<\/span> docker-compose.yml<\/p>\n

# \u542f\u52a8 Milvus<\/span>
\nsudo<\/span> docker-compose<\/span> up -d<\/span><\/p>\n

# \u9a8c\u8bc1\u670d\u52a1（\u9ed8\u8ba4\u7aef\u53e3 19530）<\/span>
\ndocker<\/span> ps<\/span><\/p>\n

2.2 \u5f15\u5165 Java SDK \u4f9d\u8d56<\/h4>\n

Milvus Java SDK \u8981\u6c42 Java 8 \u6216\u66f4\u9ad8\u7248\u672c\u3002\u6839\u636e Milvus \u7248\u672c\u9009\u62e9\u5bf9\u5e94\u7684 SDK \u7248\u672c：<\/p>\n\nMilvus \u7248\u672cJava SDK \u7248\u672c<\/tr>\n\n\n\n
2.6.x<\/td>\n2.6.22<\/td>\n<\/tr>\n
3.0.x<\/td>\n3.0.6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Maven \u4f9d\u8d56：<\/p>\n

<<\/span>dependency<\/span>><\/span><\/span>
\n <<\/span>groupId<\/span>><\/span><\/span>io.milvus<\/<\/span>groupId<\/span>><\/span><\/span>
\n <<\/span>artifactId<\/span>><\/span><\/span>milvus-sdk-java<\/<\/span>artifactId<\/span>><\/span><\/span>
\n <<\/span>version<\/span>><\/span><\/span>2.6.22<\/<\/span>version<\/span>><\/span><\/span>
\n<\/<\/span>dependency<\/span>><\/span><\/span><\/p>\n

\u26a0\ufe0f \u4ece v2.5.2 \u8d77，SDK \u62c6\u5206\u4e3a\u4e24\u4e2a\u5305：milvus-sdk-java \u548c milvus-sdk-java-bulkwriter\u3002\u5982\u4e0d\u9700\u8981\u6279\u91cf\u5199\u5165\u5de5\u5177，\u4ec5\u5f15\u5165\u7b2c\u4e00\u4e2a\u5373\u53ef\u3002<\/p>\n

\n

\u4e09\u3001Milvus Java SDK \u6838\u5fc3\u64cd\u4f5c<\/h3>\n

💡 \u7248\u672c\u8bf4\u660e：\u65b0\u7248 SDK \u7684\u6838\u5fc3\u5ba2\u6237\u7aef\u7c7b\u662f MilvusClientV2，\u5404\u8bed\u8a00 SDK \u91c7\u7528\u7edf\u4e00\u7684 API \u7ed3\u6784\u3002<\/p>\n

3.1 \u8fde\u63a5 Milvus \u670d\u52a1<\/h4>\n

import<\/span> io.<\/span>milvus.<\/span>v2.<\/span>client.<\/span><\/span>ConnectConfig<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>client.<\/span><\/span>MilvusClientV2<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>collection.<\/span>response.<\/span><\/span>ListCollectionsResp<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>database.<\/span>response.<\/span><\/span>ListDatabasesResp<\/span><\/span>;<\/span><\/p>\n

public<\/span> class<\/span> MilvusConnection<\/span> {<\/span><\/p>\n

private<\/span> static<\/span> MilvusClientV2<\/span> client;<\/span><\/p>\n

public<\/span> static<\/span> MilvusClientV2<\/span> connect<\/span>(<\/span>)<\/span> {<\/span>
\n ConnectConfig<\/span> connectConfig =<\/span> ConnectConfig<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>uri<\/span>(<\/span>"http:\/\/localhost:19530"<\/span>)<\/span> \/\/ Milvus \u670d\u52a1\u5730\u5740<\/span>
\n .<\/span>username<\/span>(<\/span>"root"<\/span>)<\/span> \/\/ \u53ef\u9009<\/span>
\n .<\/span>password<\/span>(<\/span>"Milvus"<\/span>)<\/span> \/\/ \u53ef\u9009<\/span>
\n .<\/span>dbName<\/span>(<\/span>"default"<\/span>)<\/span> \/\/ \u53ef\u9009，\u9ed8\u8ba4\u6570\u636e\u5e93<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

MilvusClientV2<\/span> client =<\/span> new<\/span> MilvusClientV2<\/span>(<\/span>connectConfig)<\/span>;<\/span><\/p>\n

\/\/ \u9a8c\u8bc1\u8fde\u63a5：\u5217\u51fa\u6240\u6709\u6570\u636e\u5e93<\/span>
\n ListDatabasesResp<\/span> databases =<\/span> client.<\/span>listDatabases<\/span>(<\/span>)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u5df2\u8fde\u63a5，\u6570\u636e\u5e93\u5217\u8868: "<\/span> +<\/span> databases.<\/span>getDatabaseNames<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5217\u51fa\u6240\u6709\u96c6\u5408<\/span>
\n ListCollectionsResp<\/span> collections =<\/span> client.<\/span>listCollections<\/span>(<\/span>)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u96c6\u5408\u5217\u8868: "<\/span> +<\/span> collections.<\/span>getCollectionNames<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

return<\/span> client;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

3.2 \u521b\u5efa\u96c6\u5408（Collection）<\/h4>\n

\u96c6\u5408\u7c7b\u4f3c\u4e8e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\u7684\u201c\u8868\u201d\u3002<\/p>\n

import<\/span> io.<\/span>milvus.<\/span>v2.<\/span>common.<\/span><\/span>DataType<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>common.<\/span><\/span>IndexParam<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>collection.<\/span>request.<\/span><\/span>AddFieldReq<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>collection.<\/span>request.<\/span><\/span>CreateCollectionReq<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>collection.<\/span>request.<\/span><\/span>CreateIndexReq<\/span><\/span>;<\/span><\/p>\n

public<\/span> class<\/span> CollectionManager<\/span> {<\/span><\/p>\n

public<\/span> static<\/span> void<\/span> createRagCollection<\/span>(<\/span>MilvusClientV2<\/span> client,<\/span> String<\/span> collectionName)<\/span> {<\/span>
\n \/\/ 1. \u521b\u5efa Schema（\u6a21\u5f0f）<\/span>
\n CreateCollectionReq.<\/span>CollectionSchema<\/span> schema =<\/span> client.<\/span>createSchema<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 2. \u6dfb\u52a0\u5b57\u6bb5<\/span>
\n \/\/ \u4e3b\u952e\u5b57\u6bb5：id<\/span>
\n schema.<\/span>addField<\/span>(<\/span>AddFieldReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>fieldName<\/span>(<\/span>"id"<\/span>)<\/span>
\n .<\/span>dataType<\/span>(<\/span>DataType.<\/span>Int64<\/span>)<\/span>
\n .<\/span>isPrimaryKey<\/span>(<\/span>true<\/span>)<\/span>
\n .<\/span>autoID<\/span>(<\/span>true<\/span>)<\/span> \/\/ \u81ea\u52a8\u751f\u6210 ID<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u6587\u672c\u5b57\u6bb5：\u5b58\u50a8\u539f\u59cb\u6587\u6863\u5185\u5bb9<\/span>
\n schema.<\/span>addField<\/span>(<\/span>AddFieldReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>fieldName<\/span>(<\/span>"text"<\/span>)<\/span>
\n .<\/span>dataType<\/span>(<\/span>DataType.<\/span>VarChar<\/span>)<\/span>
\n .<\/span>maxLength<\/span>(<\/span>65535<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5411\u91cf\u5b57\u6bb5：\u5b58\u50a8\u6587\u672c\u7684\u5411\u91cf\u8868\u793a（\u7ef4\u5ea6\u9700\u4e0e embedding \u6a21\u578b\u4e00\u81f4）<\/span>
\n schema.<\/span>addField<\/span>(<\/span>AddFieldReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>fieldName<\/span>(<\/span>"embedding"<\/span>)<\/span>
\n .<\/span>dataType<\/span>(<\/span>DataType.<\/span>FloatVector<\/span>)<\/span>
\n .<\/span>dimension<\/span>(<\/span>768<\/span>)<\/span> \/\/ \u4ee5 nomic-embed-text \u4e3a\u4f8b<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5143\u6570\u636e\u5b57\u6bb5：\u6587\u6863\u6765\u6e90<\/span>
\n schema.<\/span>addField<\/span>(<\/span>AddFieldReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>fieldName<\/span>(<\/span>"source"<\/span>)<\/span>
\n .<\/span>dataType<\/span>(<\/span>DataType.<\/span>VarChar<\/span>)<\/span>
\n .<\/span>maxLength<\/span>(<\/span>512<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 3. \u521b\u5efa\u96c6\u5408<\/span>
\n CreateCollectionReq<\/span> createReq =<\/span> CreateCollectionReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>collectionName<\/span>(<\/span>collectionName)<\/span>
\n .<\/span>collectionSchema<\/span>(<\/span>schema)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

client.<\/span>createCollection<\/span>(<\/span>createReq)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u2705 \u96c6\u5408\u521b\u5efa\u6210\u529f: "<\/span> +<\/span> collectionName)<\/span>;<\/span><\/p>\n

\/\/ 4. \u521b\u5efa\u7d22\u5f15（\u63d0\u5347\u68c0\u7d22\u6027\u80fd）<\/span>
\n IndexParam<\/span> indexParam =<\/span> IndexParam<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>fieldName<\/span>(<\/span>"embedding"<\/span>)<\/span>
\n .<\/span>indexType<\/span>(<\/span>IndexParam.<\/span>IndexType<\/span>.<\/span>HNSW<\/span>)<\/span> \/\/ HNSW \u7d22\u5f15，\u9002\u5408\u9ad8\u53ec\u56de\u7387\u573a\u666f<\/span>
\n .<\/span>metricType<\/span>(<\/span>IndexParam.<\/span>MetricType<\/span>.<\/span>COSINE<\/span>)<\/span>
\n .<\/span>extraParams<\/span>(<\/span>Map<\/span>.<\/span>of<\/span>(<\/span>"M"<\/span>,<\/span> 16<\/span>,<\/span> "efConstruction"<\/span>,<\/span> 256<\/span>)<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

CreateIndexReq<\/span> indexReq =<\/span> CreateIndexReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>collectionName<\/span>(<\/span>collectionName)<\/span>
\n .<\/span>indexParams<\/span>(<\/span>Collections<\/span>.<\/span>singletonList<\/span>(<\/span>indexParam)<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

client.<\/span>createIndex<\/span>(<\/span>indexReq)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u2705 \u7d22\u5f15\u521b\u5efa\u6210\u529f"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u7d22\u5f15\u7c7b\u578b\u9009\u62e9\u5efa\u8bae：<\/p>\n\n\u7d22\u5f15\u7c7b\u578b\u9002\u7528\u573a\u666f\u7279\u70b9<\/tr>\n\n\n\n\n
HNSW<\/td>\n\u9ad8\u53ec\u56de\u7387\u3001\u4f4e\u5ef6\u8fdf<\/td>\n\u67e5\u8be2\u5feb，\u4f46\u6784\u5efa\u7d22\u5f15\u8017\u65f6，\u5185\u5b58\u5360\u7528\u8f83\u9ad8<\/td>\n<\/tr>\n
IVF_FLAT<\/td>\n\u5927\u89c4\u6a21\u6570\u636e\u3001\u5e73\u8861\u6027\u80fd<\/td>\n\u9700\u8981\u8c03\u6574 nlist\/nprobe \u53c2\u6570<\/td>\n<\/tr>\n
IVF_SQ8<\/td>\n\u5b58\u50a8\u53d7\u9650\u573a\u666f<\/td>\n\u91cf\u5316\u538b\u7f29，\u7cbe\u5ea6\u7565\u964d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

3.3 \u63d2\u5165\u5411\u91cf\u6570\u636e<\/h4>\n

import<\/span> com.<\/span>google.<\/span>gson.<\/span><\/span>Gson<\/span><\/span>;<\/span>
\nimport<\/span> com.<\/span>google.<\/span>gson.<\/span><\/span>JsonObject<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>vector.<\/span>request.<\/span><\/span>UpsertReq<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>vector.<\/span>response.<\/span><\/span>UpsertResp<\/span><\/span>;<\/span>
\nimport<\/span> java.<\/span>util.<\/span><\/span>ArrayList<\/span><\/span>;<\/span>
\nimport<\/span> java.<\/span>util.<\/span><\/span>List<\/span><\/span>;<\/span>
\nimport<\/span> java.<\/span>util.<\/span><\/span>Map<\/span><\/span>;<\/span><\/p>\n

public<\/span> class<\/span> DataIngestion<\/span> {<\/span><\/p>\n

\/\/ \u6a21\u62df embedding \u8c03\u7528（\u5b9e\u9645\u5e94\u8c03\u7528 embedding \u6a21\u578b API）<\/span>
\n private<\/span> static<\/span> float<\/span>[<\/span>]<\/span> embedText<\/span>(<\/span>String<\/span> text)<\/span> {<\/span>
\n \/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\u8c03\u7528 OpenAI\u3001\u5343\u5e06\u7b49 embedding \u63a5\u53e3<\/span>
\n \/\/ \u6b64\u5904\u8fd4\u56de\u968f\u673a\u5411\u91cf\u4f5c\u4e3a\u793a\u4f8b<\/span>
\n float<\/span>[<\/span>]<\/span> vector =<\/span> new<\/span> float<\/span>[<\/span>768<\/span>]<\/span>;<\/span>
\n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> 768<\/span>;<\/span> i++<\/span>)<\/span> {<\/span>
\n vector[<\/span>i]<\/span> =<\/span> (<\/span>float<\/span>)<\/span> Math<\/span>.<\/span>random<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>
\n return<\/span> vector;<\/span>
\n }<\/span><\/p>\n

public<\/span> static<\/span> void<\/span> insertDocuments<\/span>(<\/span>MilvusClientV2<\/span> client,<\/span> String<\/span> collectionName)<\/span> {<\/span>
\n \/\/ \u51c6\u5907\u6587\u6863\u6570\u636e<\/span>
\n List<\/span><<\/span>Map<\/span><<\/span>String<\/span>,<\/span> Object<\/span>><\/span>><\/span><\/span> documents =<\/span> List<\/span>.<\/span>of<\/span>(<\/span>
\n Map<\/span>.<\/span>of<\/span>(<\/span>"text"<\/span>,<\/span> "Spring AI \u662f\u4e00\u4e2a\u7528\u4e8e\u7b80\u5316 AI \u5e94\u7528\u5f00\u53d1\u7684 Spring \u6846\u67b6\u6269\u5c55\u3002"<\/span>)<\/span>,<\/span>
\n Map<\/span>.<\/span>of<\/span>(<\/span>"text"<\/span>,<\/span> "Milvus \u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u5411\u91cf\u6570\u636e\u5e93，\u4e13\u4e3a\u6d77\u91cf\u5411\u91cf\u6570\u636e\u7684\u5b58\u50a8\u548c\u76f8\u4f3c\u6027\u641c\u7d22\u800c\u8bbe\u8ba1\u3002"<\/span>)<\/span>,<\/span>
\n Map<\/span>.<\/span>of<\/span>(<\/span>"text"<\/span>,<\/span> "RAG（\u68c0\u7d22\u589e\u5f3a\u751f\u6210）\u5c06\u4fe1\u606f\u68c0\u7d22\u4e0e\u5927\u8bed\u8a00\u6a21\u578b\u751f\u6210\u76f8\u7ed3\u5408\u3002"<\/span>)<\/span>
\n )<\/span>;<\/span><\/p>\n

Gson<\/span> gson =<\/span> new<\/span> Gson<\/span>(<\/span>)<\/span>;<\/span>
\n List<\/span><<\/span>JsonObject<\/span>><\/span><\/span> dataList =<\/span> new<\/span> ArrayList<\/span><<\/span>><\/span><\/span>(<\/span>)<\/span>;<\/span><\/p>\n

for<\/span> (<\/span>Map<\/span><<\/span>String<\/span>,<\/span> Object<\/span>><\/span><\/span> doc :<\/span> documents)<\/span> {<\/span>
\n String<\/span> text =<\/span> (<\/span>String<\/span>)<\/span> doc.<\/span>get<\/span>(<\/span>"text"<\/span>)<\/span>;<\/span>
\n float<\/span>[<\/span>]<\/span> embedding =<\/span> embedText<\/span>(<\/span>text)<\/span>;<\/span><\/p>\n

Map<\/span><<\/span>String<\/span>,<\/span> Object<\/span>><\/span><\/span> row =<\/span> Map<\/span>.<\/span>of<\/span>(<\/span>
\n "text"<\/span>,<\/span> text,<\/span>
\n "embedding"<\/span>,<\/span> embedding,<\/span>
\n "source"<\/span>,<\/span> "demo_knowledge_base"<\/span>
\n )<\/span>;<\/span><\/p>\n

dataList.<\/span>add<\/span>(<\/span>gson.<\/span>toJsonTree<\/span>(<\/span>row)<\/span>.<\/span>getAsJsonObject<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

\/\/ \u6279\u91cf\u63d2\u5165（Upsert：\u5b58\u5728\u5219\u66f4\u65b0，\u4e0d\u5b58\u5728\u5219\u63d2\u5165）<\/span>
\n UpsertReq<\/span> upsertReq =<\/span> UpsertReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>collectionName<\/span>(<\/span>collectionName)<\/span>
\n .<\/span>data<\/span>(<\/span>dataList)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

UpsertResp<\/span> response =<\/span> client.<\/span>upsert<\/span>(<\/span>upsertReq)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u2705 \u6210\u529f\u63d2\u5165 "<\/span> +<\/span> response.<\/span>getUpsertCnt<\/span>(<\/span>)<\/span> +<\/span> " \u6761\u6570\u636e"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

3.4 \u5411\u91cf\u68c0\u7d22<\/h4>\n

import<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>vector.<\/span>request.<\/span><\/span>SearchReq<\/span><\/span>;<\/span>
\nimport<\/span> io.<\/span>milvus.<\/span>v2.<\/span>service.<\/span>vector.<\/span>response.<\/span><\/span>SearchResp<\/span><\/span>;<\/span><\/p>\n

public<\/span> class<\/span> VectorSearch<\/span> {<\/span><\/p>\n

public<\/span> static<\/span> List<\/span><<\/span>SearchResp.<\/span>SearchResult<\/span>><\/span><\/span> search<\/span>(<\/span>
\n MilvusClientV2<\/span> client,<\/span>
\n String<\/span> collectionName,<\/span>
\n String<\/span> queryText,<\/span>
\n int<\/span> topK)<\/span> {<\/span><\/p>\n

\/\/ 1. \u5c06\u67e5\u8be2\u6587\u672c\u5411\u91cf\u5316<\/span>
\n float<\/span>[<\/span>]<\/span> queryVector =<\/span> embedText<\/span>(<\/span>queryText)<\/span>;<\/span> \/\/ \u590d\u7528\u4e0a\u9762\u7684 embedText \u65b9\u6cd5<\/span>
\n FloatVec<\/span> queryVec =<\/span> new<\/span> FloatVec<\/span>(<\/span>queryVector)<\/span>;<\/span><\/p>\n

\/\/ 2. \u6784\u5efa\u641c\u7d22\u8bf7\u6c42<\/span>
\n SearchReq<\/span> searchReq =<\/span> SearchReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>collectionName<\/span>(<\/span>collectionName)<\/span>
\n .<\/span>data<\/span>(<\/span>Collections<\/span>.<\/span>singletonList<\/span>(<\/span>queryVec)<\/span>)<\/span>
\n .<\/span>annsField<\/span>(<\/span>"embedding"<\/span>)<\/span> \/\/ \u6307\u5b9a\u5411\u91cf\u5b57\u6bb5<\/span>
\n .<\/span>outputFields<\/span>(<\/span>Arrays<\/span>.<\/span>asList<\/span>(<\/span>"text"<\/span>,<\/span> "source"<\/span>)<\/span>)<\/span> \/\/ \u8fd4\u56de\u7684\u5b57\u6bb5<\/span>
\n .<\/span>topK<\/span>(<\/span>topK)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 3. \u6267\u884c\u641c\u7d22<\/span>
\n SearchResp<\/span> searchResp =<\/span> client.<\/span>search<\/span>(<\/span>searchReq)<\/span>;<\/span>
\n List<\/span><<\/span>List<\/span><<\/span>SearchResp.<\/span>SearchResult<\/span>><\/span>><\/span><\/span> results =<\/span> searchResp.<\/span>getSearchResults<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 4. \u8f93\u51fa\u7ed3\u679c<\/span>
\n for<\/span> (<\/span>List<\/span><<\/span>SearchResp.<\/span>SearchResult<\/span>><\/span><\/span> resultList :<\/span> results)<\/span> {<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"Top "<\/span> +<\/span> topK +<\/span> " \u7ed3\u679c:"<\/span>)<\/span>;<\/span>
\n for<\/span> (<\/span>SearchResp.<\/span>SearchResult<\/span> result :<\/span> resultList)<\/span> {<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>" – \u76f8\u4f3c\u5ea6: "<\/span> +<\/span> result.<\/span>getScore<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>" \u6587\u672c: "<\/span> +<\/span> result.<\/span>getEntity<\/span>(<\/span>)<\/span>.<\/span>get<\/span>(<\/span>"text"<\/span>)<\/span>)<\/span>;<\/span>
\n }<\/span>
\n }<\/span><\/p>\n

return<\/span> results.<\/span>isEmpty<\/span>(<\/span>)<\/span> ?<\/span> Collections<\/span>.<\/span>emptyList<\/span>(<\/span>)<\/span> :<\/span> results.<\/span>get<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\n

\u56db\u3001\u6784\u5efa\u5b8c\u6574\u7684 RAG \u7cfb\u7edf<\/h3>\n

4.1 \u6280\u672f\u6808\u9009\u578b<\/h4>\n\n\u7ec4\u4ef6\u63a8\u8350\u65b9\u6848<\/tr>\n\n\n\n\n\n
\u540e\u7aef\u6846\u67b6<\/td>\nSpring Boot 3.x<\/td>\n<\/tr>\n
AI \u96c6\u6210<\/td>\nSpring AI 1.0.0<\/td>\n<\/tr>\n
\u5411\u91cf\u6570\u636e\u5e93<\/td>\nMilvus 2.6.x<\/td>\n<\/tr>\n
LLM<\/td>\nOpenAI API \u517c\u5bb9\u63a5\u53e3（\u767e\u5ea6\u5343\u5e06\u3001Ollama \u7b49）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

4.2 Spring Boot \u914d\u7f6e<\/h4>\n

application.yml：<\/p>\n

spring<\/span>:<\/span>
\n ai<\/span>:<\/span>
\n openai<\/span>:<\/span>
\n base-url<\/span>:<\/span> http:<\/span>\/\/localhost:<\/span>11434<\/span> # Ollama \u6216\u5343\u5e06 API \u5730\u5740<\/span>
\n chat<\/span>:<\/span>
\n options<\/span>:<\/span>
\n model<\/span>:<\/span> qwen2.5:<\/span>7b
\n embedding<\/span>:<\/span>
\n options<\/span>:<\/span>
\n model<\/span>:<\/span> nomic–<\/span>embed–<\/span>text
\n dimensions<\/span>:<\/span> 768<\/span><\/p>\n

milvus<\/span>:<\/span>
\n uri<\/span>:<\/span> http:<\/span>\/\/localhost:<\/span>19530<\/span>
\n username<\/span>:<\/span> root
\n password<\/span>:<\/span> Milvus
\n database<\/span>:<\/span> default
\n collection<\/span>:<\/span> rag_knowledge<\/p>\n

4.3 \u6587\u6863 ETL \u670d\u52a1<\/h4>\n

\u5c06 PDF\u3001Word \u7b49\u6587\u6863\u5207\u5206\u5e76\u5b58\u5165 Milvus：<\/p>\n

import<\/span> org.<\/span>springframework.<\/span>ai.<\/span>document.<\/span><\/span>Document<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>ai.<\/span>reader.<\/span>tika.<\/span><\/span>TikaDocumentReader<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>ai.<\/span>splitter.<\/span><\/span>TokenTextSplitter<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>ai.<\/span>vectorstore.<\/span><\/span>VectorStore<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>core.<\/span>io.<\/span><\/span>Resource<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>stereotype.<\/span><\/span>Service<\/span><\/span>;<\/span>
\nimport<\/span> reactor.<\/span>core.<\/span>publisher.<\/span><\/span>Flux<\/span><\/span>;<\/span><\/p>\n

@Service<\/span>
\npublic<\/span> class<\/span> DocumentIngestionService<\/span> {<\/span><\/p>\n

private<\/span> final<\/span> VectorStore<\/span> vectorStore;<\/span>
\n private<\/span> final<\/span> TokenTextSplitter<\/span> textSplitter;<\/span><\/p>\n

public<\/span> DocumentIngestionService<\/span>(<\/span>VectorStore<\/span> vectorStore)<\/span> {<\/span>
\n this<\/span>.<\/span>vectorStore =<\/span> vectorStore;<\/span>
\n this<\/span>.<\/span>textSplitter =<\/span> new<\/span> TokenTextSplitter<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

public<\/span> void<\/span> ingestDocument<\/span>(<\/span>Resource<\/span> resource)<\/span> {<\/span>
\n \/\/ 1. \u8bfb\u53d6\u6587\u6863（\u652f\u6301 PDF\u3001Word\u3001TXT \u7b49）<\/span>
\n TikaDocumentReader<\/span> reader =<\/span> new<\/span> TikaDocumentReader<\/span>(<\/span>resource)<\/span>;<\/span><\/p>\n

\/\/ 2. \u6587\u672c\u5206\u5757（\u63a7\u5236\u4e0a\u4e0b\u6587\u957f\u5ea6）<\/span>
\n List<\/span><<\/span>Document<\/span>><\/span><\/span> documents =<\/span> textSplitter.<\/span>apply<\/span>(<\/span>reader.<\/span>read<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 3. \u5b58\u5165 Milvus（\u81ea\u52a8\u5411\u91cf\u5316\u5e76\u5b58\u50a8）<\/span>
\n vectorStore.<\/span>add<\/span>(<\/span>documents)<\/span>;<\/span><\/p>\n

System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u2705 \u6210\u529f\u52a0\u8f7d "<\/span> +<\/span> documents.<\/span>size<\/span>(<\/span>)<\/span> +<\/span> " \u4e2a\u6587\u6863\u7247\u6bb5\u5230\u77e5\u8bc6\u5e93"<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

4.4 RAG \u6838\u5fc3\u670d\u52a1<\/h4>\n

\u5b9e\u73b0\u201c\u68c0\u7d22 + \u751f\u6210\u201d\u7684\u5b8c\u6574\u6d41\u7a0b：<\/p>\n

import<\/span> org.<\/span>springframework.<\/span>ai.<\/span>chat.<\/span>client.<\/span><\/span>ChatClient<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>ai.<\/span>chat.<\/span>prompt.<\/span><\/span>PromptTemplate<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>ai.<\/span>document.<\/span><\/span>Document<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>ai.<\/span>vectorstore.<\/span><\/span>SearchRequest<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>ai.<\/span>vectorstore.<\/span><\/span>VectorStore<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>stereotype.<\/span><\/span>Service<\/span><\/span>;<\/span>
\nimport<\/span> java.<\/span>util.<\/span><\/span>List<\/span><\/span>;<\/span>
\nimport<\/span> java.<\/span>util.<\/span><\/span>Map<\/span><\/span>;<\/span>
\nimport<\/span> java.<\/span>util.<\/span>stream.<\/span><\/span>Collectors<\/span><\/span>;<\/span><\/p>\n

@Service<\/span>
\npublic<\/span> class<\/span> RAGService<\/span> {<\/span><\/p>\n

private<\/span> final<\/span> ChatClient<\/span> chatClient;<\/span>
\n private<\/span> final<\/span> VectorStore<\/span> vectorStore;<\/span><\/p>\n

public<\/span> RAGService<\/span>(<\/span>ChatClient.<\/span>Builder<\/span> chatClientBuilder,<\/span> VectorStore<\/span> vectorStore)<\/span> {<\/span>
\n this<\/span>.<\/span>chatClient =<\/span> chatClientBuilder.<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
\n this<\/span>.<\/span>vectorStore =<\/span> vectorStore;<\/span>
\n }<\/span><\/p>\n

public<\/span> String<\/span> ask<\/span>(<\/span>String<\/span> question)<\/span> {<\/span>
\n \/\/ 1. \u4ece Milvus \u68c0\u7d22\u6700\u76f8\u5173\u7684\u6587\u6863\u7247\u6bb5<\/span>
\n SearchRequest<\/span> searchRequest =<\/span> SearchRequest<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>query<\/span>(<\/span>question)<\/span>
\n .<\/span>topK<\/span>(<\/span>5<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

List<\/span><<\/span>Document<\/span>><\/span><\/span> documents =<\/span> vectorStore.<\/span>similaritySearch<\/span>(<\/span>searchRequest)<\/span>;<\/span><\/p>\n

\/\/ 2. \u63d0\u53d6\u68c0\u7d22\u7ed3\u679c\u4f5c\u4e3a\u4e0a\u4e0b\u6587<\/span>
\n List<\/span><<\/span>String<\/span>><\/span><\/span> context =<\/span> documents.<\/span>stream<\/span>(<\/span>)<\/span>
\n .<\/span>map<\/span>(<\/span>Document<\/span>::<\/span>getText<\/span>)<\/span>
\n .<\/span>collect<\/span>(<\/span>Collectors<\/span>.<\/span>toList<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 3. \u6784\u5efa Prompt<\/span>
\n PromptTemplate<\/span> promptTemplate =<\/span> new<\/span> PromptTemplate<\/span>(<\/span>"""
\n \u8bf7\u6839\u636e\u4ee5\u4e0b\u80cc\u666f\u4fe1\u606f\u56de\u7b54\u7528\u6237\u7684\u95ee\u9898\u3002
\n \u5982\u679c\u80cc\u666f\u4fe1\u606f\u4e0d\u5305\u542b\u7b54\u6848，\u8bf7\u8bf4\u660e"\u4f9d\u636e\u73b0\u6709\u8d44\u6599\u65e0\u6cd5\u56de\u7b54"\u3002<\/p>\n

### \u80cc\u666f\u4fe1\u606f:
\n {context}<\/p>\n

### \u7528\u6237\u95ee\u9898:
\n {question}<\/p>\n

### \u56de\u7b54:
\n """<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 4. \u8c03\u7528 LLM \u751f\u6210\u7b54\u6848<\/span>
\n return<\/span> chatClient.<\/span>prompt<\/span>(<\/span>
\n promptTemplate.<\/span>create<\/span>(<\/span>Map<\/span>.<\/span>of<\/span>(<\/span>
\n "context"<\/span>,<\/span> String<\/span>.<\/span>join<\/span>(<\/span>"\\\\n"<\/span>,<\/span> context)<\/span>,<\/span>
\n "question"<\/span>,<\/span> question
\n )<\/span>)<\/span>
\n )<\/span>.<\/span>call<\/span>(<\/span>)<\/span>.<\/span>content<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

4.5 REST API \u63a5\u53e3<\/h4>\n

import<\/span> org.<\/span>springframework.<\/span>web.<\/span>bind.<\/span>annotation.<\/span><\/span>*<\/span><\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>beans.<\/span>factory.<\/span>annotation.<\/span><\/span>Autowired<\/span><\/span>;<\/span><\/p>\n

@RestController<\/span>
\n@RequestMapping<\/span>(<\/span>"\/api\/rag"<\/span>)<\/span>
\npublic<\/span> class<\/span> RAGController<\/span> {<\/span><\/p>\n

@Autowired<\/span>
\n private<\/span> RAGService<\/span> ragService;<\/span><\/p>\n

@PostMapping<\/span>(<\/span>"\/ask"<\/span>)<\/span>
\n public<\/span> String<\/span> askQuestion<\/span>(<\/span>@RequestBody<\/span> String<\/span> question)<\/span> {<\/span>
\n return<\/span> ragService.<\/span>ask<\/span>(<\/span>question)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\n

\u4e94\u3001AI \u667a\u80fd\u4f53\u589e\u5f3a<\/h3>\n

5.1 \u4ece RAG \u5230\u667a\u80fd\u4f53\u8bb0\u5fc6<\/h4>\n

\u4f20\u7edf RAG \u662f\u201c\u53ea\u8bfb\u7684\u5916\u90e8\u77e5\u8bc6\u5e93\u201d，\u800c AI \u667a\u80fd\u4f53\u9700\u8981\u52a8\u6001\u8bb0\u5fc6\u80fd\u529b\u2014\u2014\u8bb0\u4f4f\u5386\u53f2\u5bf9\u8bdd\u3001\u79ef\u7d2f\u4e0a\u4e0b\u6587\u3002<\/p>\n

Milvus \u53ef\u4ee5\u5b58\u50a8\u4e24\u7c7b\u8bb0\u5fc6：<\/p>\n

    \n
  • \u77ed\u671f\u8bb0\u5fc6：\u5f53\u524d\u4f1a\u8bdd\u7684\u5bf9\u8bdd\u5386\u53f2<\/li>\n
  • \u957f\u671f\u8bb0\u5fc6：\u8de8\u4f1a\u8bdd\u7684\u7528\u6237\u504f\u597d\u548c\u5386\u53f2\u77e5\u8bc6<\/li>\n<\/ul>\n

    5.2 \u5bf9\u8bdd\u8bb0\u5fc6\u5b58\u50a8<\/h4>\n

    @Service<\/span>
    \npublic<\/span> class<\/span> ConversationMemoryService<\/span> {<\/span><\/p>\n

    private<\/span> final<\/span> MilvusClientV2<\/span> client;<\/span>
    \n private<\/span> final<\/span> String<\/span> memoryCollection =<\/span> "conversation_memory"<\/span>;<\/span><\/p>\n

    public<\/span> void<\/span> saveConversation<\/span>(<\/span>String<\/span> sessionId,<\/span> String<\/span> userMessage,<\/span> String<\/span> assistantMessage)<\/span> {<\/span>
    \n \/\/ \u5c06\u5bf9\u8bdd\u5185\u5bb9\u5411\u91cf\u5316\u5e76\u5b58\u50a8<\/span>
    \n float<\/span>[<\/span>]<\/span> userVector =<\/span> embedText<\/span>(<\/span>userMessage)<\/span>;<\/span>
    \n float<\/span>[<\/span>]<\/span> assistantVector =<\/span> embedText<\/span>(<\/span>assistantMessage)<\/span>;<\/span><\/p>\n

    JsonObject<\/span> memory =<\/span> new<\/span> JsonObject<\/span>(<\/span>)<\/span>;<\/span>
    \n memory.<\/span>addProperty<\/span>(<\/span>"session_id"<\/span>,<\/span> sessionId)<\/span>;<\/span>
    \n memory.<\/span>addProperty<\/span>(<\/span>"user_message"<\/span>,<\/span> userMessage)<\/span>;<\/span>
    \n memory.<\/span>addProperty<\/span>(<\/span>"assistant_message"<\/span>,<\/span> assistantMessage)<\/span>;<\/span>
    \n memory.<\/span>add<\/span>(<\/span>"user_embedding"<\/span>,<\/span> gson.<\/span>toJsonTree<\/span>(<\/span>userVector)<\/span>)<\/span>;<\/span>
    \n memory.<\/span>add<\/span>(<\/span>"assistant_embedding"<\/span>,<\/span> gson.<\/span>toJsonTree<\/span>(<\/span>assistantVector)<\/span>)<\/span>;<\/span>
    \n memory.<\/span>addProperty<\/span>(<\/span>"timestamp"<\/span>,<\/span> System<\/span>.<\/span>currentTimeMillis<\/span>(<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

    UpsertReq<\/span> req =<\/span> UpsertReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
    \n .<\/span>collectionName<\/span>(<\/span>memoryCollection)<\/span>
    \n .<\/span>data<\/span>(<\/span>Collections<\/span>.<\/span>singletonList<\/span>(<\/span>memory)<\/span>)<\/span>
    \n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    client.<\/span>upsert<\/span>(<\/span>req)<\/span>;<\/span>
    \n }<\/span><\/p>\n

    public<\/span> List<\/span><<\/span>String<\/span>><\/span><\/span> retrieveRelevantMemories<\/span>(<\/span>String<\/span> sessionId,<\/span> String<\/span> currentQuery,<\/span> int<\/span> topK)<\/span> {<\/span>
    \n \/\/ \u68c0\u7d22\u4e0e\u5f53\u524d\u95ee\u9898\u76f8\u5173\u7684\u5386\u53f2\u5bf9\u8bdd<\/span>
    \n float<\/span>[<\/span>]<\/span> queryVector =<\/span> embedText<\/span>(<\/span>currentQuery)<\/span>;<\/span><\/p>\n

    SearchReq<\/span> searchReq =<\/span> SearchReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
    \n .<\/span>collectionName<\/span>(<\/span>memoryCollection)<\/span>
    \n .<\/span>data<\/span>(<\/span>Collections<\/span>.<\/span>singletonList<\/span>(<\/span>new<\/span> FloatVec<\/span>(<\/span>queryVector)<\/span>)<\/span>)<\/span>
    \n .<\/span>annsField<\/span>(<\/span>"user_embedding"<\/span>)<\/span>
    \n .<\/span>filter<\/span>(<\/span>"session_id == '"<\/span> +<\/span> sessionId +<\/span> "'"<\/span>)<\/span> \/\/ \u4ec5\u68c0\u7d22\u5f53\u524d\u4f1a\u8bdd<\/span>
    \n .<\/span>outputFields<\/span>(<\/span>Arrays<\/span>.<\/span>asList<\/span>(<\/span>"user_message"<\/span>,<\/span> "assistant_message"<\/span>)<\/span>)<\/span>
    \n .<\/span>topK<\/span>(<\/span>topK)<\/span>
    \n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    SearchResp<\/span> resp =<\/span> client.<\/span>search<\/span>(<\/span>searchReq)<\/span>;<\/span>
    \n \/\/ \u89e3\u6790\u5e76\u8fd4\u56de\u5386\u53f2\u5bf9\u8bdd<\/span>
    \n return<\/span> extractMessages<\/span>(<\/span>resp)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    5.3 Hybrid RAG（\u6df7\u5408\u68c0\u7d22）<\/h4>\n

    Milvus 2.6 \u652f\u6301\u6df7\u5408\u68c0\u7d22\u2014\u2014\u7ed3\u5408\u8bed\u4e49\u641c\u7d22（\u5bc6\u96c6\u5411\u91cf）\u548c\u5173\u952e\u8bcd\u641c\u7d22（\u7a00\u758f\u5411\u91cf \/ BM25），\u63d0\u5347\u68c0\u7d22\u51c6\u786e\u7387\u3002<\/p>\n

    \/\/ \u6df7\u5408\u68c0\u7d22\u793a\u4f8b（\u9700\u8981\u521b\u5efa\u7a00\u758f\u5411\u91cf\u5b57\u6bb5）<\/span>
    \npublic<\/span> SearchResp<\/span> hybridSearch<\/span>(<\/span>MilvusClientV2<\/span> client,<\/span> String<\/span> collectionName,<\/span>
    \n String<\/span> query,<\/span> float<\/span>[<\/span>]<\/span> denseVector,<\/span> float<\/span>[<\/span>]<\/span> sparseVector)<\/span> {<\/span>
    \n \/\/ \u540c\u65f6\u6267\u884c\u5bc6\u96c6\u5411\u91cf\u68c0\u7d22\u548c\u7a00\u758f\u5411\u91cf\u68c0\u7d22<\/span>
    \n \/\/ \u7136\u540e\u901a\u8fc7\u52a0\u6743\u878d\u5408（\u5982 RRF）\u5408\u5e76\u7ed3\u679c<\/span><\/p>\n

    SearchReq<\/span> denseSearch =<\/span> SearchReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
    \n .<\/span>collectionName<\/span>(<\/span>collectionName)<\/span>
    \n .<\/span>data<\/span>(<\/span>Collections<\/span>.<\/span>singletonList<\/span>(<\/span>new<\/span> FloatVec<\/span>(<\/span>denseVector)<\/span>)<\/span>)<\/span>
    \n .<\/span>annsField<\/span>(<\/span>"dense_embedding"<\/span>)<\/span>
    \n .<\/span>topK<\/span>(<\/span>10<\/span>)<\/span>
    \n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    SearchReq<\/span> sparseSearch =<\/span> SearchReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
    \n .<\/span>collectionName<\/span>(<\/span>collectionName)<\/span>
    \n .<\/span>data<\/span>(<\/span>Collections<\/span>.<\/span>singletonList<\/span>(<\/span>new<\/span> SparseFloatVec<\/span>(<\/span>sparseVector)<\/span>)<\/span>)<\/span>
    \n .<\/span>annsField<\/span>(<\/span>"sparse_embedding"<\/span>)<\/span>
    \n .<\/span>topK<\/span>(<\/span>10<\/span>)<\/span>
    \n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

    \/\/ \u5206\u522b\u6267\u884c\u540e\u505a\u7ed3\u679c\u878d\u5408<\/span>
    \n \/\/ …<\/span>
    \n}<\/span><\/p>\n

    \n

    \u516d\u3001\u6027\u80fd\u4f18\u5316\u4e0e\u751f\u4ea7\u5b9e\u8df5<\/h3>\n

    6.1 \u6279\u91cf\u63d2\u5165\u4f18\u5316<\/h4>\n

    \u751f\u4ea7\u73af\u5883\u4e2d，\u6279\u91cf\u63d2\u5165\u5e94\u9075\u5faa\u4ee5\u4e0b\u539f\u5219：<\/p>\n

      \n
    • \u6bcf\u6279\u6b21\u63a7\u5236\u5728 2-5MB \u6570\u636e\u91cf<\/li>\n
    • \u4f7f\u7528\u591a\u7ebf\u7a0b\u5e76\u53d1\u63d2\u5165\u65f6\u4fdd\u8bc1\u6279\u6b21\u6709\u5e8f<\/li>\n
    • \u5f02\u5e38\u5904\u7406\u5305\u542b\u91cd\u8bd5\u673a\u5236<\/li>\n<\/ul>\n

      public<\/span> void<\/span> batchInsertWithRetry<\/span>(<\/span>MilvusClientV2<\/span> client,<\/span> String<\/span> collectionName,<\/span>
      \n List<\/span><<\/span>JsonObject<\/span>><\/span><\/span> dataList,<\/span> int<\/span> batchSize)<\/span> {<\/span>
      \n int<\/span> maxRetries =<\/span> 3<\/span>;<\/span>
      \n for<\/span> (<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> dataList.<\/span>size<\/span>(<\/span>)<\/span>;<\/span> i +=<\/span> batchSize)<\/span> {<\/span>
      \n int<\/span> end =<\/span> Math<\/span>.<\/span>min<\/span>(<\/span>i +<\/span> batchSize,<\/span> dataList.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
      \n List<\/span><<\/span>JsonObject<\/span>><\/span><\/span> batch =<\/span> dataList.<\/span>subList<\/span>(<\/span>i,<\/span> end)<\/span>;<\/span><\/p>\n

      int<\/span> retry =<\/span> 0<\/span>;<\/span>
      \n while<\/span> (<\/span>retry <<\/span> maxRetries)<\/span> {<\/span>
      \n try<\/span> {<\/span>
      \n UpsertReq<\/span> req =<\/span> UpsertReq<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
      \n .<\/span>collectionName<\/span>(<\/span>collectionName)<\/span>
      \n .<\/span>data<\/span>(<\/span>batch)<\/span>
      \n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span>
      \n client.<\/span>upsert<\/span>(<\/span>req)<\/span>;<\/span>
      \n break<\/span>;<\/span>
      \n }<\/span> catch<\/span> (<\/span>Exception<\/span> e)<\/span> {<\/span>
      \n retry++<\/span>;<\/span>
      \n if<\/span> (<\/span>retry >=<\/span> maxRetries)<\/span> {<\/span>
      \n throw<\/span> new<\/span> RuntimeException<\/span>(<\/span>"\u6279\u91cf\u63d2\u5165\u5931\u8d25，\u5df2\u91cd\u8bd5 "<\/span> +<\/span> maxRetries +<\/span> " \u6b21"<\/span>,<\/span> e)<\/span>;<\/span>
      \n }<\/span>
      \n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u91cd\u8bd5\u7b2c "<\/span> +<\/span> retry +<\/span> " \u6b21…"<\/span>)<\/span>;<\/span>
      \n Thread<\/span>.<\/span>sleep<\/span>(<\/span>1000<\/span> *<\/span> retry)<\/span>;<\/span>
      \n }<\/span>
      \n }<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      6.2 \u76d1\u63a7\u4e0e\u8c03\u4f18<\/h4>\n
        \n
      • \u4f7f\u7528 Attu（Milvus \u5b98\u65b9 GUI \u7ba1\u7406\u5de5\u5177）\u76d1\u63a7\u96c6\u7fa4\u72b6\u6001<\/li>\n
      • \u5173\u6ce8\u67e5\u8be2\u5ef6\u8fdf（P99）\u3001\u7cfb\u7edf\u8d1f\u8f7d\u7b49\u6307\u6807<\/li>\n
      • \u6839\u636e\u6570\u636e\u589e\u957f\u5b9a\u671f\u91cd\u5efa\u7d22\u5f15\u6216\u8c03\u6574\u7d22\u5f15\u53c2\u6570<\/li>\n<\/ul>\n

        6.3 \u5b89\u5168\u5b9e\u8df5<\/h4>\n
          \n
        • \u4e0d\u8981\u5728\u4ee3\u7801\u6216\u914d\u7f6e\u6587\u4ef6\u4e2d\u786c\u7f16\u7801 API KEY，\u4f7f\u7528\u73af\u5883\u53d8\u91cf<\/li>\n
        • \u751f\u4ea7\u73af\u5883\u5f00\u542f Milvus \u7684\u8ba4\u8bc1\u4e0e\u6388\u6743\u529f\u80fd<\/li>\n
        • \u654f\u611f\u6570\u636e\u8003\u8651\u5b57\u6bb5\u7ea7\u52a0\u5bc6<\/li>\n<\/ul>\n
          \n

          \u4e03\u3001\u5b8c\u6574\u9879\u76ee\u7ed3\u6784<\/h3>\n

          spring-ai-rag\/
          \n\u251c\u2500\u2500 src\/main\/java\/com\/example\/rag\/
          \n\u2502 \u251c\u2500\u2500 config\/
          \n\u2502 \u2502 \u2514\u2500\u2500 MilvusConfig.java # Milvus \u8fde\u63a5\u914d\u7f6e
          \n\u2502 \u251c\u2500\u2500 service\/
          \n\u2502 \u2502 \u251c\u2500\u2500 DocumentIngestionService.java # \u6587\u6863 ETL
          \n\u2502 \u2502 \u251c\u2500\u2500 RAGService.java # RAG \u6838\u5fc3\u670d\u52a1
          \n\u2502 \u2502 \u2514\u2500\u2500 ConversationMemoryService.java # \u5bf9\u8bdd\u8bb0\u5fc6
          \n\u2502 \u251c\u2500\u2500 controller\/
          \n\u2502 \u2502 \u2514\u2500\u2500 RAGController.java # REST API
          \n\u2502 \u2514\u2500\u2500 Application.java
          \n\u251c\u2500\u2500 src\/main\/resources\/
          \n\u2502 \u251c\u2500\u2500 application.yml
          \n\u2502 \u2514\u2500\u2500 data\/ # \u6d4b\u8bd5\u6587\u6863\u76ee\u5f55
          \n\u2514\u2500\u2500 pom.xml<\/p>\n

          💡 \u5b8c\u6574\u7684\u53ef\u8fd0\u884c\u793a\u4f8b\u4ee3\u7801\u53ef\u53c2\u8003\u5b98\u65b9\u793a\u4f8b\u4ed3\u5e93：milvus-sdk-java\/examples\u4ee5\u53ca Spring AI RAG \u793a\u4f8b spring-ai-rag\u3002<\/p>\n

          \n

          \u603b\u7ed3<\/h3>\n

          \u672c\u6587\u4ece\u96f6\u5f00\u59cb，\u4f7f\u7528 Java + Milvus \u6784\u5efa\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684 AI \u667a\u80fd\u4f53 RAG \u7cfb\u7edf，\u6db5\u76d6：<\/p>\n

        • Milvus \u73af\u5883\u642d\u5efa\u4e0e Java SDK \u914d\u7f6e<\/li>\n
        • \u96c6\u5408\u7ba1\u7406：Schema \u8bbe\u8ba1\u3001\u7d22\u5f15\u521b\u5efa<\/li>\n
        • \u6570\u636e\u64cd\u4f5c：\u5411\u91cf\u63d2\u5165\u3001\u76f8\u4f3c\u6027\u68c0\u7d22<\/li>\n
        • RAG \u6838\u5fc3\u94fe\u8def：\u6587\u6863 ETL \u2192 \u5411\u91cf\u68c0\u7d22 \u2192 LLM \u751f\u6210<\/li>\n
        • \u667a\u80fd\u4f53\u589e\u5f3a：\u5bf9\u8bdd\u8bb0\u5fc6\u5b58\u50a8\u4e0e\u68c0\u7d22<\/li>\n
        • \u751f\u4ea7\u5b9e\u8df5：\u6279\u91cf\u4f18\u5316\u3001\u76d1\u63a7\u3001\u5b89\u5168<\/li>\n","protected":false},"excerpt":{"rendered":"

          🧑 \u535a\u4e3b\u7b80\u4ecb：CSDN\u535a\u5ba2\u4e13\u5bb6，\u300c\u5386\u4ee3\u6587\u5b66\u7f51\u300d（PC\u7aef\u53ef\u4ee5\u8bbf\u95ee：https:\/\/lidaiwenxue.com\/#\/?__c1000，\u79fb\u52a8\u7aef\u53ef\u5173\u6ce8\u516c\u4f17\u53f7 \u201c \u5fc3\u6d77\u4e91\u56fe \u201d \u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u641c\u7d22\u201c\u5386\u4ee3\u6587\u5b66\u201d）\u603b\u67b6\u6784\u5e08，\u9996\u5e2d\u67b6\u6784\u5e08，\u4e5f\u662f\u8054\u5408\u521b\u59cb\u4eba！16\u5e74\u5de5\u4f5c\u7ecf\u9a8c，\u7cbe\u901aJava\u7f16\u7a0b，\u9ad8\u5e76\u53d1\u8bbe\u8ba1，\u5206\u5e03\u5f0f\u7cfb\u7edf\u67b6<\/p>\n","protected":false},"author":2,"featured_media":95283,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[10187,99,1741,100],"topic":[],"class_list":["post-95303","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-codingplan","tag-java","tag-milvus","tag-100"],"yoast_head":"\n\u4ece\u96f6\u6784\u5efa Java \u667a\u80fd\u4f53 RAG \u7cfb\u7edf\uff1aMilvus \u5411\u91cf\u6570\u636e\u5e93\u5b9e\u6218\u6307\u5357 - 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