Mobile versionDieses Modell unterstützt Vektorwerte von 1024. Dies ist das Alibaba-Cloud-DasScope-Modell
langchain4j:
community:
dashscope:
chat-model:
model-name: deepseek-r1
embedding-model:
model-name: text-embedding-v3
< /code>
Dies ist die POM-Datei, die Version der zugehörigen Abhängigkeiten < /p>
Code: Select all
21
21
UTF-8
1.18.30
5.11.4
2.24.3
3.3.2
42.3.8
3.5.8
2.4.8
3.1.8
5.4.1
1.0.0-SNAPSHOT
1.0.0-beta1
< /code>
Initialisierung Einbettung und PGVectorembedingstore < /p>
@Bean
public Assistant init(EmbeddingStore embeddingStore) {
return AiServices.builder(Assistant.class)
.chatMemoryProvider(memoryId -> MessageWindowChatMemory.withMaxMessages(10))
.contentRetriever(EmbeddingStoreContentRetriever.from(embeddingStore))
.chatLanguageModel(chatLanguageModel).build();
}
@Bean
public EmbeddingStore initEmbeddingStore() {
return PgVectorEmbeddingStore.builder()
.table(pgConfig.getTable())
.dropTableFirst(true)
.createTable(true)
.host(pgConfig.getHost())
.port(pgConfig.getPort())
.user(pgConfig.getUser())
.password(pgConfig.getPassword())
.dimension(1024)
.database(pgConfig.getDatabase())
.build();
}
< /code>
Der erste Schritt bestand darin, die Datei in die Vektortabelle in PGVector über die Ladeschnittstelle zu laden, und dieser Schritt war erfolgreich. Im zweiten Teil habe ich Assistant.chat über die Schnittstelle/High/Chat angerufen, um meine Frage zu beantworten und die RAG -Funktion zu implementieren. Der zweite ist jedoch fehlgeschlagen
@GetMapping("/load")
public String load(@RequestParam(value = "maxSegmentSizeInChars",required = false,defaultValue = "50") int maxSegmentSizeInChars
, @RequestParam(value = "maxOverlapSizeInChars",required = false ,defaultValue = "10") int maxOverlapSizeInChars) {
List documents = FileSystemDocumentLoader.loadDocuments("D:\\work\\lecture-langchain-20250525\\documents");
// EmbeddingStoreIngestor.ingest(documents,embeddingStore);
EmbeddingStoreIngestor.builder().embeddingStore(embeddingStore)
.embeddingModel(embeddingModel)
.documentSplitter(new DocumentByLineSplitter(maxSegmentSizeInChars, maxOverlapSizeInChars))
.build().ingest(documents);
return "success";
}
@GetMapping("/high/chat")
public String lowChat(@RequestParam(value = "message") String message) {
return assistant.chat(message);
}
< /code>
Fehlermeldung < /p>
org.postgresql.util.PSQLException: ERROR: different vector dimensions 1024 and 384
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2675) ~[postgresql-42.3.8.jar:42.3.8]
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2365) ~[postgresql-42.3.8.jar:42.3.8]
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:355) ~[postgresql-42.3.8.jar:42.3.8]
at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:490) ~[postgresql-42.3.8.jar:42.3.8]
at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:408) ~[postgresql-42.3.8.jar:42.3.8]
at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:167) ~[postgresql-42.3.8.jar:42.3.8]
at org.postgresql.jdbc.PgPreparedStatement.executeQuery(PgPreparedStatement.java:119) ~[postgresql-42.3.8.jar:42.3.8]
at dev.langchain4j.store.embedding.pgvector.PgVectorEmbeddingStore.search(PgVectorEmbeddingStore.java:294) ~[langchain4j-pgvector-1.0.0-beta1.jar:na]
at dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever.retrieve(EmbeddingStoreContentRetriever.java:241) ~[langchain4j-core-1.0.0-beta1.jar:na]
at dev.langchain4j.rag.DefaultRetrievalAugmentor.process(DefaultRetrievalAugmentor.java:182) ~[langchain4j-core-1.0.0-beta1.jar:na]
at dev.langchain4j.rag.DefaultRetrievalAugmentor.augment(DefaultRetrievalAugmentor.java:162) ~[langchain4j-core-1.0.0-beta1.jar:na]
at dev.langchain4j.service.DefaultAiServices$1.invoke(DefaultAiServices.java:140) ~[langchain4j-1.0.0-beta1.jar:na]
at jdk.proxy2/jdk.proxy2.$Proxy60.chat(Unknown Source) ~[na:na]
at com.xmin.lecture.rag.RagAPI.lowChat(RagAPI.java:31) ~[classes/:na]
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:255) ~[spring-web-6.1.11.jar:6.1.11]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:188) ~[spring-web-6.1.11.jar:6.1.11]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118) ~[spring-webmvc-6.1.11.jar:6.1.11]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:926) ~[spring-webmvc-6.1.11.jar:6.1.11]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:831) ~[spring-webmvc-6.1.11.jar:6.1.11]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-6.1.11.jar:6.1.11]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1089) ~[spring-webmvc-6.1.11.jar:6.1.11]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979) ~[spring-webmvc-6.1.11.jar:6.1.11]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) ~[spring-webmvc-6.1.11.jar:6.1.11]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903) ~[spring-webmvc-6.1.11.jar:6.1.11]
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) ~[spring-webmvc-6.1.11.jar:6.1.11]
at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:195) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[tomcat-embed-websocket-10.1.26.jar:10.1.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-6.1.11.jar:6.1.11]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.11.jar:6.1.11]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-6.1.11.jar:6.1.11]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.11.jar:6.1.11]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-6.1.11.jar:6.1.11]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) ~[spring-web-6.1.11.jar:6.1.11]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:164) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:140) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:344) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:389) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:904) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1741) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1190) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) ~[tomcat-embed-core-10.1.26.jar:10.1.26]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]