{"id":77241,"date":"2026-02-24T09:09:27","date_gmt":"2026-02-24T01:09:27","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/77241.html"},"modified":"2026-02-24T09:09:27","modified_gmt":"2026-02-24T01:09:27","slug":"%e9%ab%98%e7%ba%a7java%e6%af%8f%e6%97%a5%e4%b8%80%e9%81%93%e9%9d%a2%e8%af%95%e9%a2%98-2025%e5%b9%b47%e6%9c%8820%e6%97%a5-%e5%9f%ba%e7%a1%80%e7%af%87langchain4j-langchain4j-%e6%94%af%e6%8c%81","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/77241.html","title":{"rendered":"\u9ad8\u7ea7java\u6bcf\u65e5\u4e00\u9053\u9762\u8bd5\u9898-2025\u5e747\u670820\u65e5-\u57fa\u7840\u7bc7[LangChain4j]-LangChain4j \u652f\u6301\u54ea\u4e9b\u5411\u91cf\u6570\u636e\u5e93\uff1f\u5404\u81ea\u7684\u4f18\u7f3a\u70b9\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

LangChain4j\u652f\u6301\u7684\u5411\u91cf\u6570\u636e\u5e93\u79cd\u7c7b，\u4ee5\u53ca\u8fd9\u4e9b\u6570\u636e\u5e93\u5404\u81ea\u7684\u4f18\u7f3a\u70b9，\u8fd9\u662fLangChain4j\u5728RAG（\u68c0\u7d22\u589e\u5f3a\u751f\u6210）\u573a\u666f\u843d\u5730\u7684\u6838\u5fc3\u8003\u70b9，\u65e2\u8003\u5bdf\u5bf9\u6846\u67b6\u751f\u6001\u7684\u719f\u6089\u5ea6，\u4e5f\u8003\u5bdf\u5b9e\u9645\u9879\u76ee\u4e2d\u5411\u91cf\u6570\u636e\u5e93\u9009\u578b\u7684\u5de5\u7a0b\u601d\u7ef4\u3002<\/p>\n

\u4e00\u3001LangChain4j\u652f\u6301\u7684\u6838\u5fc3\u5411\u91cf\u6570\u636e\u5e93\u53ca\u96c6\u6210\u903b\u8f91<\/h4>\n

LangChain4j\u901a\u8fc7\u7edf\u4e00\u7684\u5411\u91cf\u5b58\u50a8\u63a5\u53e3（VectorStore） \u9002\u914d\u4e3b\u6d41\u5411\u91cf\u6570\u636e\u5e93，\u5e95\u5c42\u5c01\u88c5\u4e86\u5404\u6570\u636e\u5e93\u7684SDK，\u4e0a\u5c42\u63d0\u4f9b\u4e00\u81f4\u7684\u8c03\u7528\u65b9\u5f0f（\u5b58\u50a8\u5411\u91cf\u3001\u76f8\u4f3c\u6027\u68c0\u7d22\u3001\u5220\u9664\u7b49）\u3002\u4ee5\u4e0b\u662f\u751f\u4ea7\u73af\u5883\u4e2d\u6700\u5e38\u7528\u76848\u7c7b\u5411\u91cf\u6570\u636e\u5e93，\u6309\u300c\u6613\u7528\u6027+\u6210\u719f\u5ea6\u300d\u6392\u5e8f：<\/p>\n\n\u5411\u91cf\u6570\u636e\u5e93LangChain4j\u96c6\u6210\u4f9d\u8d56\u6838\u5fc3\u9002\u914d\u7c7b\u9002\u7528\u573a\u666f<\/tr>\n\n\n\n\n\n\n\n\n\n
Chroma<\/td>\nlangchain4j-chroma<\/td>\nChromaVectorStore<\/td>\n\u5f00\u53d1\/\u6d4b\u8bd5\u3001\u8f7b\u91cf\u7ea7\u9879\u76ee<\/td>\n<\/tr>\n
Pinecone<\/td>\nlangchain4j-pinecone<\/td>\nPineconeVectorStore<\/td>\n\u4e91\u539f\u751f\u3001\u9ad8\u5e76\u53d1\u751f\u4ea7\u73af\u5883<\/td>\n<\/tr>\n
Milvus\/ZHIPU AI<\/td>\nlangchain4j-milvus<\/td>\nMilvusVectorStore<\/td>\n\u5927\u89c4\u6a21\u6570\u636e\u3001\u79c1\u6709\u5316\u90e8\u7f72<\/td>\n<\/tr>\n
Weaviate<\/td>\nlangchain4j-weaviate<\/td>\nWeaviateVectorStore<\/td>\n\u6df7\u5408\u641c\u7d22（\u5411\u91cf+\u7ed3\u6784\u5316）<\/td>\n<\/tr>\n
Elasticsearch<\/td>\nlangchain4j-elasticsearch<\/td>\nElasticsearchVectorStore<\/td>\n\u5df2\u6709ES\u96c6\u7fa4\u3001\u5168\u6587+\u5411\u91cf\u878d\u5408<\/td>\n<\/tr>\n
Redis<\/td>\nlangchain4j-redis<\/td>\nRedisVectorStore<\/td>\n\u8f7b\u91cf\u7ea7\u3001\u7f13\u5b58+\u5411\u91cf\u4e00\u4f53\u5316<\/td>\n<\/tr>\n
PGVector (PostgreSQL)<\/td>\nlangchain4j-pgvector<\/td>\nPgVectorStore<\/td>\n\u5df2\u6709PG\u6570\u636e\u5e93\u3001\u4f4e\u6210\u672c\u90e8\u7f72<\/td>\n<\/tr>\n
FAISS<\/td>\nlangchain4j-faiss<\/td>\nFaissVectorStore<\/td>\n\u672c\u5730\u6d4b\u8bd5\u3001\u9ad8\u6027\u80fd\u5355\u673a\u68c0\u7d22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e8c\u3001\u6838\u5fc3\u5411\u91cf\u6570\u636e\u5e93\u8be6\u89e3（\u96c6\u6210\u793a\u4f8b+\u4f18\u7f3a\u70b9）<\/h4>\n

\u4ee5\u4e0b\u662f\u6bcf\u7c7b\u6570\u636e\u5e93\u7684\u96c6\u6210\u793a\u4f8b\u3001\u6838\u5fc3\u4f18\u7f3a\u70b9，\u7ed3\u5408\u9762\u8bd5\u9ad8\u9891\u8003\u70b9\u5c55\u5f00：<\/p>\n

1. Chroma<\/h5>\n
\u96c6\u6210\u793a\u4f8b（\u6700\u7b80）<\/h6>\n

import<\/span> dev.<\/span>langchain4j.<\/span>data.<\/span>embedding.<\/span><\/span>Embedding<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>data.<\/span>segment.<\/span><\/span>TextSegment<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>ChromaVectorStore<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>VectorStore<\/span>;<\/span><\/p>\n

import<\/span> java.<\/span>util.<\/span><\/span>List<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> ChromaIntegration<\/span> {<\/span>
\n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
\n \/\/ 1. \u6784\u5efaChroma\u5411\u91cf\u5e93（\u9ed8\u8ba4\u672c\u5730\u5185\u5b58\u6a21\u5f0f）<\/span>
\n VectorStore<\/span> vectorStore =<\/span> ChromaVectorStore<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>baseUrl<\/span>(<\/span>"http:\/\/localhost:8000"<\/span>)<\/span> \/\/ Chroma\u670d\u52a1\u5730\u5740<\/span>
\n .<\/span>collectionName<\/span>(<\/span>"my-collection"<\/span>)<\/span> \/\/ \u96c6\u5408\u540d<\/span>
\n .<\/span>dimension<\/span>(<\/span>1536<\/span>)<\/span> \/\/ \u5d4c\u5165\u7ef4\u5ea6（\u5982OpenAI text-embedding-ada-002）<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ 2. \u5b58\u50a8\u5411\u91cf<\/span>
\n TextSegment<\/span> segment =<\/span> TextSegment<\/span>.<\/span>from<\/span>(<\/span>"LangChain4j\u652f\u6301\u591a\u79cd\u5411\u91cf\u6570\u636e\u5e93"<\/span>)<\/span>;<\/span>
\n Embedding<\/span> embedding =<\/span> Embedding<\/span>.<\/span>from<\/span>(<\/span>new<\/span> float<\/span>[<\/span>1536<\/span>]<\/span>)<\/span>;<\/span> \/\/ \u5b9e\u9645\u9700\u4f20\u5165\u771f\u5b9e\u5d4c\u5165\u5411\u91cf<\/span>
\n vectorStore.<\/span>add<\/span>(<\/span>segment,<\/span> embedding)<\/span>;<\/span><\/p>\n

\/\/ 3. \u76f8\u4f3c\u6027\u68c0\u7d22<\/span>
\n List<\/span><<\/span>TextSegment<\/span>><\/span><\/span> results =<\/span> vectorStore.<\/span>similaritySearch<\/span>(<\/span>embedding,<\/span> 5<\/span>)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>"\u68c0\u7d22\u7ed3\u679c："<\/span> +<\/span> results)<\/span>;<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u4f18\u7f3a\u70b9<\/h6>\n\n\u4f18\u70b9\u7f3a\u70b9<\/tr>\n\n\n\n\n\n
\u5f00\u7bb1\u5373\u7528，\u65e0\u9700\u590d\u6742\u914d\u7f6e<\/td>\n\u751f\u4ea7\u73af\u5883\u7a33\u5b9a\u6027\u4e0d\u8db3，\u7f3a\u4e4f\u4f01\u4e1a\u7ea7\u7279\u6027<\/td>\n<\/tr>\n
\u8f7b\u91cf\u7ea7，\u652f\u6301\u5185\u5b58\/\u6301\u4e45\u5316\u4e24\u79cd\u6a21\u5f0f<\/td>\n\u4e0d\u652f\u6301\u5927\u89c4\u6a21\u6570\u636e（\u5343\u4e07\u7ea7\u4ee5\u4e0a\u6027\u80fd\u4e0b\u964d）<\/td>\n<\/tr>\n
\u4e13\u4e3aLLM\u573a\u666f\u8bbe\u8ba1，API\u7b80\u6d01<\/td>\n\u96c6\u7fa4\u90e8\u7f72\u80fd\u529b\u5f31，\u65e0\u5b8c\u5584\u7684\u6743\u9650\u7ba1\u63a7<\/td>\n<\/tr>\n
\u9002\u5408\u5feb\u901f\u539f\u578b\u9a8c\u8bc1<\/td>\n\u793e\u533a\u751f\u6001\u8f83\u5c0f，\u95ee\u9898\u6392\u67e5\u8d44\u6e90\u5c11<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9762\u8bd5\u8003\u70b9：Chroma\u9002\u5408\u4ec0\u4e48\u573a\u666f？<\/h6>\n

\u2192 \u5f00\u53d1\/\u6d4b\u8bd5\u9636\u6bb5\u3001\u5c0f\u578b\u9879\u76ee\u3001\u5feb\u901f\u9a8c\u8bc1RAG\u6d41\u7a0b，\u4e0d\u5efa\u8bae\u7528\u4e8e\u751f\u4ea7\u73af\u5883\u3002<\/p>\n

2. Pinecone<\/h5>\n
\u96c6\u6210\u793a\u4f8b<\/h6>\n

import<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>PineconeVectorStore<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>VectorStore<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> PineconeIntegration<\/span> {<\/span>
\n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
\n VectorStore<\/span> vectorStore =<\/span> PineconeVectorStore<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>apiKey<\/span>(<\/span>"your-pinecone-api-key"<\/span>)<\/span> \/\/ \u4e91\u670d\u52a1API Key<\/span>
\n .<\/span>environment<\/span>(<\/span>"us-west1-gcp"<\/span>)<\/span> \/\/ \u90e8\u7f72\u73af\u5883<\/span>
\n .<\/span>indexName<\/span>(<\/span>"my-index"<\/span>)<\/span> \/\/ \u7d22\u5f15\u540d<\/span>
\n .<\/span>dimension<\/span>(<\/span>1536<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5b58\u50a8\/\u68c0\u7d22\u903b\u8f91\u540cChroma（\u63a5\u53e3\u7edf\u4e00）<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u4f18\u7f3a\u70b9<\/h6>\n\n\u4f18\u70b9\u7f3a\u70b9<\/tr>\n\n\n\n\n\n
\u4e91\u539f\u751f\u6258\u7ba1，\u65e0\u9700\u8fd0\u7ef4<\/td>\n\u6210\u672c\u9ad8（\u6309\u5b58\u50a8\/\u67e5\u8be2\u91cf\u8ba1\u8d39）<\/td>\n<\/tr>\n
\u652f\u6301\u81ea\u52a8\u5206\u7247\u3001\u8d1f\u8f7d\u5747\u8861，\u9ad8\u53ef\u7528<\/td>\n\u79c1\u6709\u5316\u90e8\u7f72\u56f0\u96be（\u4ec5\u652f\u6301\u4e91\u670d\u52a1）<\/td>\n<\/tr>\n
\u4e13\u4e3a\u5411\u91cf\u68c0\u7d22\u4f18\u5316，\u4f4e\u5ef6\u8fdf\u9ad8\u5e76\u53d1<\/td>\n\u4f9d\u8d56\u5916\u7f51，\u56fd\u5185\u8bbf\u95ee\u7a33\u5b9a\u6027\u5dee<\/td>\n<\/tr>\n
\u652f\u6301\u52a8\u6001\u7d22\u5f15\u8c03\u6574\u3001\u5143\u6570\u636e\u8fc7\u6ee4<\/td>\n\u81ea\u5b9a\u4e49\u914d\u7f6e\u9879\u5c11，\u7075\u6d3b\u6027\u4e0d\u8db3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9762\u8bd5\u8003\u70b9：Pinecone\u7684\u6838\u5fc3\u4f18\u52bf？<\/h6>\n

\u2192 \u4f01\u4e1a\u7ea7\u6258\u7ba1\u670d\u52a1，\u65e0\u9700\u5173\u6ce8\u5e95\u5c42\u8fd0\u7ef4，\u9002\u5408\u5bf9\u7a33\u5b9a\u6027\u8981\u6c42\u9ad8\u3001\u65e0\u79c1\u6709\u5316\u90e8\u7f72\u9700\u6c42\u7684\u6d77\u5916\u9879\u76ee\u3002<\/p>\n

3. Milvus（\u542bZHIPU AI\u7248）<\/h5>\n
\u96c6\u6210\u793a\u4f8b<\/h6>\n

import<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>MilvusVectorStore<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>VectorStore<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> MilvusIntegration<\/span> {<\/span>
\n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
\n VectorStore<\/span> vectorStore =<\/span> MilvusVectorStore<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>host<\/span>(<\/span>"localhost"<\/span>)<\/span>
\n .<\/span>port<\/span>(<\/span>19530<\/span>)<\/span> \/\/ Milvus\u9ed8\u8ba4\u7aef\u53e3<\/span>
\n .<\/span>collectionName<\/span>(<\/span>"my-collection"<\/span>)<\/span>
\n .<\/span>dimension<\/span>(<\/span>1536<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5b58\u50a8\/\u68c0\u7d22\u903b\u8f91\u540c\u524d<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u4f18\u7f3a\u70b9<\/h6>\n\n\u4f18\u70b9\u7f3a\u70b9<\/tr>\n\n\n\n\n\n
\u5f00\u6e90\u514d\u8d39，\u652f\u6301\u79c1\u6709\u5316\u90e8\u7f72<\/td>\n\u90e8\u7f72\u8fd0\u7ef4\u590d\u6742（\u9700\u914d\u7f6eETCD\u3001MinIO\u7b49）<\/td>\n<\/tr>\n
\u652f\u6301\u5927\u89c4\u6a21\u6570\u636e（\u4ebf\u7ea7\u5411\u91cf）<\/td>\n\u5355\u673a\u6027\u80fd\u4e00\u822c，\u9700\u96c6\u7fa4\u4f18\u5316<\/td>\n<\/tr>\n
\u4e30\u5bcc\u7684\u7d22\u5f15\u7c7b\u578b（IVF_FLAT\u3001HNSW\u7b49）<\/td>\n\u5b66\u4e60\u6210\u672c\u9ad8，\u53c2\u6570\u8c03\u4f18\u590d\u6742<\/td>\n<\/tr>\n
\u56fd\u5185\u751f\u6001\u5b8c\u5584（ZHIPU AI\u6df1\u5ea6\u9002\u914d）<\/td>\n\u8d44\u6e90\u5360\u7528\u9ad8（\u5185\u5b58\/CPU）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9762\u8bd5\u8003\u70b9：Milvus\u7684\u7d22\u5f15\u9009\u62e9？<\/h6>\n

\u2192 \u5c0f\u89c4\u6a21\u6570\u636e\u7528HNSW（\u9ad8\u68c0\u7d22\u901f\u5ea6），\u5927\u89c4\u6a21\u6570\u636e\u7528IVF_FLAT（\u9ad8\u53ec\u56de\u7387），\u5e73\u8861\u573a\u666f\u7528IVF_HNSW\u3002<\/p>\n

4. Elasticsearch<\/h5>\n
\u96c6\u6210\u793a\u4f8b<\/h6>\n

import<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>ElasticsearchVectorStore<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>VectorStore<\/span>;<\/span>
\nimport<\/span> org.<\/span>apache.<\/span>http.<\/span><\/span>HttpHost<\/span>;<\/span>
\nimport<\/span> org.<\/span>elasticsearch.<\/span>client.<\/span><\/span>RestClient<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> EsIntegration<\/span> {<\/span>
\n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
\n RestClient<\/span> restClient =<\/span> RestClient<\/span>.<\/span>builder<\/span>(<\/span>new<\/span> HttpHost<\/span>(<\/span>"localhost"<\/span>,<\/span> 9200<\/span>)<\/span>)<\/span>.<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

VectorStore<\/span> vectorStore =<\/span> ElasticsearchVectorStore<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>restClient<\/span>(<\/span>restClient)<\/span>
\n .<\/span>indexName<\/span>(<\/span>"my-vector-index"<\/span>)<\/span>
\n .<\/span>dimension<\/span>(<\/span>1536<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5b58\u50a8\/\u68c0\u7d22\u903b\u8f91\u540c\u524d<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u4f18\u7f3a\u70b9<\/h6>\n\n\u4f18\u70b9\u7f3a\u70b9<\/tr>\n\n\n\n\n\n
\u652f\u6301\u5168\u6587\u68c0\u7d22+\u5411\u91cf\u68c0\u7d22\u878d\u5408<\/td>\n\u5411\u91cf\u68c0\u7d22\u6027\u80fd\u4e0d\u5982\u4e13\u7528\u5411\u91cf\u6570\u636e\u5e93<\/td>\n<\/tr>\n
\u5df2\u6709ES\u96c6\u7fa4\u53ef\u76f4\u63a5\u590d\u7528，\u65e0\u9700\u989d\u5916\u90e8\u7f72<\/td>\n\u7d22\u5f15\u914d\u7f6e\u590d\u6742（\u9700\u81ea\u5b9a\u4e49mapping）<\/td>\n<\/tr>\n
\u5b8c\u5584\u7684\u76d1\u63a7\u3001\u6743\u9650\u3001\u96c6\u7fa4\u80fd\u529b<\/td>\n\u9ad8\u5e76\u53d1\u5411\u91cf\u68c0\u7d22\u65f6\u8d44\u6e90\u5360\u7528\u9ad8<\/td>\n<\/tr>\n
\u652f\u6301\u4e30\u5bcc\u7684\u8fc7\u6ee4\u6761\u4ef6（\u7ed3\u6784\u5316+\u5411\u91cf）<\/td>\n\u4e0d\u652f\u6301\u90e8\u5206\u9ad8\u7ea7\u5411\u91cf\u68c0\u7d22\u7b97\u6cd5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9762\u8bd5\u8003\u70b9：ES\u505a\u5411\u91cf\u6570\u636e\u5e93\u7684\u9002\u7528\u573a\u666f？<\/h6>\n

\u2192 \u5df2\u6709ES\u96c6\u7fa4\u3001\u9700\u8981\u300c\u6587\u672c\u5173\u952e\u8bcd\u68c0\u7d22 + \u8bed\u4e49\u5411\u91cf\u68c0\u7d22\u300d\u878d\u5408\u7684\u573a\u666f（\u5982\u7535\u5546\u641c\u7d22）\u3002<\/p>\n

5. Redis<\/h5>\n
\u96c6\u6210\u793a\u4f8b<\/h6>\n

import<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>RedisVectorStore<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>VectorStore<\/span>;<\/span>
\nimport<\/span> redis.<\/span>clients.<\/span>jedis.<\/span><\/span>JedisPool<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> RedisIntegration<\/span> {<\/span>
\n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
\n JedisPool<\/span> jedisPool =<\/span> new<\/span> JedisPool<\/span>(<\/span>"localhost"<\/span>,<\/span> 6379<\/span>)<\/span>;<\/span><\/p>\n

VectorStore<\/span> vectorStore =<\/span> RedisVectorStore<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>jedisPool<\/span>(<\/span>jedisPool)<\/span>
\n .<\/span>indexName<\/span>(<\/span>"my-vector-index"<\/span>)<\/span>
\n .<\/span>dimension<\/span>(<\/span>1536<\/span>)<\/span>
\n .<\/span>distanceFunction<\/span>(<\/span>"COSINE"<\/span>)<\/span> \/\/ \u8ddd\u79bb\u51fd\u6570：\u4f59\u5f26\u76f8\u4f3c\u5ea6<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5b58\u50a8\/\u68c0\u7d22\u903b\u8f91\u540c\u524d<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u4f18\u7f3a\u70b9<\/h6>\n\n\u4f18\u70b9\u7f3a\u70b9<\/tr>\n\n\n\n\n\n
\u8f7b\u91cf\u7ea7，\u7f13\u5b58+\u5411\u91cf\u4e00\u4f53\u5316<\/td>\n\u4ec5\u652f\u6301\u5c0f\u89c4\u6a21\u6570\u636e（\u767e\u4e07\u7ea7\u4ee5\u4e0b）<\/td>\n<\/tr>\n
\u90e8\u7f72\u8fd0\u7ef4\u7b80\u5355，\u751f\u6001\u6210\u719f<\/td>\n\u5411\u91cf\u68c0\u7d22\u7b97\u6cd5\u5355\u4e00（\u4ec5HNSW）<\/td>\n<\/tr>\n
\u4f4e\u5ef6\u8fdf，\u9002\u5408\u9ad8\u9891\u5c0f\u6279\u91cf\u68c0\u7d22<\/td>\n\u6301\u4e45\u5316\u80fd\u529b\u5f31，\u6570\u636e\u6613\u4e22\u5931<\/td>\n<\/tr>\n
\u652f\u6301Redis\u96c6\u7fa4，\u9ad8\u53ef\u7528<\/td>\n\u4e0d\u652f\u6301\u590d\u6742\u7684\u5143\u6570\u636e\u8fc7\u6ee4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9762\u8bd5\u8003\u70b9：Redis\u5411\u91cf\u6570\u636e\u5e93\u7684\u6838\u5fc3\u9002\u7528\u573a\u666f？<\/h6>\n

\u2192 \u8f7b\u91cf\u7ea7RAG\u573a\u666f\u3001\u5b9e\u65f6\u6027\u8981\u6c42\u9ad8\u7684\u5c0f\u6279\u91cf\u5411\u91cf\u68c0\u7d22（\u5982\u4f1a\u8bdd\u7ea7\u4e0a\u4e0b\u6587\u68c0\u7d22）\u3002<\/p>\n

6. PGVector（PostgreSQL）<\/h5>\n
\u96c6\u6210\u793a\u4f8b<\/h6>\n

import<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>PgVectorStore<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>VectorStore<\/span>;<\/span>
\nimport<\/span> javax.<\/span>sql.<\/span><\/span>DataSource<\/span>;<\/span>
\nimport<\/span> org.<\/span>springframework.<\/span>jdbc.<\/span>datasource.<\/span><\/span>DriverManagerDataSource<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> PgVectorIntegration<\/span> {<\/span>
\n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
\n DataSource<\/span> dataSource =<\/span> new<\/span> DriverManagerDataSource<\/span>(<\/span>
\n "jdbc:postgresql:\/\/localhost:5432\/mydb"<\/span>,<\/span>
\n "username"<\/span>,<\/span>
\n "password"<\/span>
\n )<\/span>;<\/span><\/p>\n

VectorStore<\/span> vectorStore =<\/span> PgVectorStore<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>dataSource<\/span>(<\/span>dataSource)<\/span>
\n .<\/span>tableName<\/span>(<\/span>"vector_table"<\/span>)<\/span>
\n .<\/span>dimension<\/span>(<\/span>1536<\/span>)<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5b58\u50a8\/\u68c0\u7d22\u903b\u8f91\u540c\u524d<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u4f18\u7f3a\u70b9<\/h6>\n\n\u4f18\u70b9\u7f3a\u70b9<\/tr>\n\n\n\n\n\n
\u5df2\u6709PG\u6570\u636e\u5e93\u53ef\u76f4\u63a5\u590d\u7528，\u6210\u672c\u4f4e<\/td>\n\u5927\u89c4\u6a21\u6570\u636e\u68c0\u7d22\u6027\u80fd\u5dee<\/td>\n<\/tr>\n
\u652f\u6301\u7ed3\u6784\u5316\u67e5\u8be2+\u5411\u91cf\u68c0\u7d22<\/td>\n\u9700\u5b89\u88c5pgvector\u6269\u5c55，\u914d\u7f6e\u590d\u6742<\/td>\n<\/tr>\n
\u4e8b\u52a1\u652f\u6301\u5b8c\u5584，\u6570\u636e\u4e00\u81f4\u6027\u9ad8<\/td>\n\u7d22\u5f15\u7c7b\u578b\u6709\u9650（\u4ec5IVF\u3001HNSW）<\/td>\n<\/tr>\n
\u5b66\u4e60\u6210\u672c\u4f4e（SQL\u8bed\u6cd5）<\/td>\n\u9ad8\u5e76\u53d1\u4e0b\u6027\u80fd\u74f6\u9888\u660e\u663e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9762\u8bd5\u8003\u70b9：PGVector\u7684\u9002\u7528\u573a\u666f？<\/h6>\n

\u2192 \u4e2d\u5c0f\u89c4\u6a21\u6570\u636e\u3001\u9700\u8981\u300c\u4e1a\u52a1\u6570\u636e + \u5411\u91cf\u6570\u636e\u300d\u7edf\u4e00\u5b58\u50a8\u7684\u573a\u666f（\u5982\u4f01\u4e1a\u5185\u90e8\u77e5\u8bc6\u5e93）\u3002<\/p>\n

7. FAISS<\/h5>\n
\u96c6\u6210\u793a\u4f8b<\/h6>\n

import<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>FaissVectorStore<\/span>;<\/span>
\nimport<\/span> dev.<\/span>langchain4j.<\/span>store.<\/span>vector.<\/span><\/span>VectorStore<\/span>;<\/span><\/p>\n

public<\/span> class<\/span> FaissIntegration<\/span> {<\/span>
\n public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[<\/span>]<\/span> args)<\/span> {<\/span>
\n VectorStore<\/span> vectorStore =<\/span> FaissVectorStore<\/span>.<\/span>builder<\/span>(<\/span>)<\/span>
\n .<\/span>dimension<\/span>(<\/span>1536<\/span>)<\/span>
\n .<\/span>indexFactory<\/span>(<\/span>(<\/span>)<\/span> -><\/span> faiss.<\/span><\/span>IndexFlatL2<\/span>.<\/span>create<\/span>(<\/span>1536<\/span>)<\/span>)<\/span> \/\/ L2\u8ddd\u79bb\u7d22\u5f15<\/span>
\n .<\/span>build<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u5b58\u50a8\/\u68c0\u7d22\u903b\u8f91\u540c\u524d<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\u4f18\u7f3a\u70b9<\/h6>\n\n\u4f18\u70b9\u7f3a\u70b9<\/tr>\n\n\n\n\n\n
\u5355\u673a\u68c0\u7d22\u6027\u80fd\u6781\u81f4（\u6beb\u79d2\u7ea7）<\/td>\n\u4e0d\u652f\u6301\u5206\u5e03\u5f0f\u90e8\u7f72<\/td>\n<\/tr>\n
\u4e30\u5bcc\u7684\u7d22\u5f15\u7b97\u6cd5，\u53ec\u56de\u7387\u9ad8<\/td>\n\u65e0\u6301\u4e45\u5316\u80fd\u529b（\u5185\u5b58\u578b）<\/td>\n<\/tr>\n
\u8f7b\u91cf\u7ea7，\u9002\u5408\u672c\u5730\u6d4b\u8bd5<\/td>\n\u65e0\u96c6\u7fa4\u3001\u6743\u9650\u3001\u76d1\u63a7\u7b49\u4f01\u4e1a\u7ea7\u7279\u6027<\/td>\n<\/tr>\n
\u5f00\u6e90\u514d\u8d39，\u65e0\u5546\u4e1a\u9650\u5236<\/td>\n\u4ec5\u652f\u6301Java Native\u8c03\u7528，\u517c\u5bb9\u6027\u5dee<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u9762\u8bd5\u8003\u70b9：FAISS\u7684\u4f7f\u7528\u573a\u666f？<\/h6>\n

\u2192 \u672c\u5730\u6d4b\u8bd5\u3001\u7b97\u6cd5\u9a8c\u8bc1\u3001\u5355\u673a\u5c0f\u89c4\u6a21\u9ad8\u6027\u80fd\u68c0\u7d22，\u4e0d\u9002\u5408\u751f\u4ea7\u73af\u5883\u3002<\/p>\n

\u4e09\u3001\u9762\u8bd5\u9ad8\u9891\u6269\u5c55\u95ee\u9898<\/h4>\n

1. \u5411\u91cf\u6570\u636e\u5e93\u9009\u578b\u7684\u6838\u5fc3\u4f9d\u636e？<\/h5>\n
    \n
  • \u6570\u636e\u89c4\u6a21：\u767e\u4e07\u7ea7\u4ee5\u4e0b\u9009Redis\/PGVector，\u5343\u4e07\u7ea7\u9009Milvus，\u4ebf\u7ea7\u9009Milvus\u96c6\u7fa4\/Pinecone；<\/li>\n
  • \u90e8\u7f72\u65b9\u5f0f：\u79c1\u6709\u5316\u90e8\u7f72\u9009Milvus\/ES\/PGVector，\u6258\u7ba1\u670d\u52a1\u9009Pinecone；<\/li>\n
  • \u6210\u672c：\u4f4e\u6210\u672c\u9009Chroma\/Redis\/PGVector，\u9ad8\u9884\u7b97\u9009Pinecone；<\/li>\n
  • \u529f\u80fd\u9700\u6c42：\u9700\u5168\u6587+\u5411\u91cf\u878d\u5408\u9009ES，\u9700\u9ad8\u6027\u80fd\u5355\u673a\u68c0\u7d22\u9009FAISS，\u9700\u4f01\u4e1a\u7ea7\u9ad8\u53ef\u7528\u9009Pinecone\/Milvus\u3002<\/li>\n<\/ul>\n
    2. LangChain4j\u9002\u914d\u5411\u91cf\u6570\u636e\u5e93\u7684\u6838\u5fc3\u8bbe\u8ba1？<\/h5>\n
      \n
    • \u7edf\u4e00\u7684VectorStore\u63a5\u53e3，\u5c4f\u853d\u5404\u6570\u636e\u5e93\u7684\u5e95\u5c42\u5dee\u5f02；<\/li>\n
    • \u57fa\u4e8e\u300c\u5d4c\u5165\u7ef4\u5ea6 + \u8ddd\u79bb\u51fd\u6570\u300d\u7684\u6807\u51c6\u5316\u914d\u7f6e；<\/li>\n
    • \u652f\u6301similaritySearch（\u76f8\u4f3c\u6027\u68c0\u7d22）\u3001similaritySearchWithScore（\u5e26\u8bc4\u5206\u68c0\u7d22）\u3001add\/delete\u7b49\u901a\u7528\u64cd\u4f5c；<\/li>\n
    • \u53ef\u6269\u5c55\u7684\u7d22\u5f15\u914d\u7f6e，\u9002\u914d\u4e0d\u540c\u6570\u636e\u5e93\u7684\u7d22\u5f15\u7c7b\u578b\u3002<\/li>\n<\/ul>\n
      3. \u5982\u4f55\u4f18\u5316\u5411\u91cf\u6570\u636e\u5e93\u7684\u68c0\u7d22\u6027\u80fd？<\/h5>\n
        \n
      • \u7d22\u5f15\u9009\u62e9：\u5c0f\u89c4\u6a21\u7528HNSW，\u5927\u89c4\u6a21\u7528IVF_FLAT\/IVF_HNSW；<\/li>\n
      • \u7ef4\u5ea6\u4f18\u5316：\u5bf9\u5d4c\u5165\u5411\u91cf\u964d\u7ef4（\u5982\u4ece1536\u7ef4\u964d\u5230768\u7ef4）；<\/li>\n
      • \u5206\u7247\u7b56\u7565：Milvus\/ES\/Pinecone\u6309\u6570\u636e\u7279\u5f81\u5206\u7247；<\/li>\n
      • \u7f13\u5b58\u4f18\u5316：Redis\u7f13\u5b58\u9ad8\u9891\u68c0\u7d22\u7ed3\u679c，\u51cf\u5c11\u5411\u91cf\u5e93\u67e5\u8be2；<\/li>\n
      • \u53c2\u6570\u8c03\u4f18：Milvus\u8c03\u6574nlist\/nprobe，ES\u8c03\u6574number_of_shards\u3002<\/li>\n<\/ul>\n

        \u603b\u7ed3<\/h4>\n
      • \u6838\u5fc3\u652f\u6301\u7684\u5411\u91cf\u6570\u636e\u5e93：\n
          \n
        • \u8f7b\u91cf\u7ea7\/\u6d4b\u8bd5：Chroma\u3001FAISS\u3001Redis；<\/li>\n
        • \u751f\u4ea7\u7ea7\/\u79c1\u6709\u5316：Milvus\u3001Elasticsearch\u3001PGVector；<\/li>\n
        • \u4e91\u539f\u751f\/\u6258\u7ba1：Pinecone；<\/li>\n<\/ul>\n<\/li>\n
        • \u9009\u578b\u6838\u5fc3\u539f\u5219：\n
            \n
          • \u4f18\u5148\u590d\u7528\u5df2\u6709\u6570\u636e\u5e93（\u5982\u5df2\u6709ES\/PG\u5219\u4e0d\u65b0\u589eMilvus）；<\/li>\n
          • \u5c0f\u89c4\u6a21\u9009\u8f7b\u91cf\u578b，\u5927\u89c4\u6a21\u9009\u5206\u5e03\u5f0f；<\/li>\n
          • \u56fd\u5185\u9879\u76ee\u4f18\u5148\u9009Milvus（\u79c1\u6709\u5316）\/ES（\u878d\u5408\u68c0\u7d22）；<\/li>\n<\/ul>\n<\/li>\n
          • \u9762\u8bd5\u52a0\u5206\u70b9：\n
              \n
            • \u638c\u63e1\u4e0d\u540c\u6570\u636e\u5e93\u7684\u6838\u5fc3\u4f18\u7f3a\u70b9\u548c\u9002\u7528\u573a\u666f；<\/li>\n
            • \u7406\u89e3LangChain4j\u7edf\u4e00\u63a5\u53e3\u7684\u8bbe\u8ba1\u601d\u60f3；<\/li>\n
            • \u80fd\u7ed3\u5408\u6570\u636e\u89c4\u6a21\u3001\u90e8\u7f72\u65b9\u5f0f\u3001\u6210\u672c\u7ed9\u51fa\u9009\u578b\u65b9\u6848\u3002<\/li>\n<\/ul>\n<\/li>\n

              \u8fd9\u4e2a\u77e5\u8bc6\u70b9\u7684\u9762\u8bd5\u8003\u5bdf\u91cd\u70b9\u662f\u300c\u751f\u6001\u719f\u6089\u5ea6\u300d+\u300c\u9009\u578b\u601d\u7ef4\u300d，\u4e0a\u8ff0\u5185\u5bb9\u8986\u76d6\u4e86\u6838\u5fc3\u6570\u636e\u5e93\u7684\u96c6\u6210\u3001\u4f18\u7f3a\u70b9\u548c\u9009\u578b\u4f9d\u636e，\u80fd\u5145\u5206\u4f53\u73b0\u4f60\u5bf9RAG\u573a\u666f\u7684\u843d\u5730\u80fd\u529b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

              LangChain4j\u652f\u6301\u7684\u5411\u91cf\u6570\u636e\u5e93\u79cd\u7c7b，\u4ee5\u53ca\u8fd9\u4e9b\u6570\u636e\u5e93\u5404\u81ea\u7684\u4f18\u7f3a\u70b9，\u8fd9\u662fLangChain4j\u5728RAG（\u68c0\u7d22\u589e\u5f3a\u751f\u6210）\u573a\u666f\u843d\u5730\u7684\u6838\u5fc3\u8003\u70b9，\u65e2\u8003\u5bdf\u5bf9\u6846\u67b6\u751f\u6001\u7684\u719f\u6089\u5ea6，\u4e5f\u8003\u5bdf\u5b9e\u9645\u9879\u76ee\u4e2d\u5411\u91cf\u6570\u636e\u5e93\u9009\u578b\u7684\u5de5\u7a0b\u601d\u7ef4\u3002
              \n\u4e00\u3001LangChain4j\u652f\u6301\u7684\u6838\u5fc3\u5411\u91cf\u6570\u636e\u5e93\u53ca\u96c6\u6210\u903b\u8f91
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