参考黑马的Langchain4j
This commit is contained in:
spllzh
137
pom.xml
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137
pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>3.5.4</version>
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<relativePath/> <!-- lookup parent from repository -->
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</parent>
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<groupId>com.cst</groupId>
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<artifactId>Langchain4j-heima</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>Langchain4j-heima20250803</name>
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<description>Langchain4j-heima20250803</description>
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<url/>
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<licenses>
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<license/>
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</licenses>
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<developers>
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<developer/>
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</developers>
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<scm>
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<connection/>
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<developerConnection/>
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<tag/>
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<url/>
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</scm>
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<properties>
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<java.version>17</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-configuration-processor</artifactId>
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<optional>true</optional>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<optional>true</optional>
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</dependency>
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<!-- 添加依赖 langchain4j-open-ai -->
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<!-- <dependency>-->
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<!-- <groupId>dev.langchain4j</groupId>-->
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<!-- <artifactId>langchain4j-open-ai</artifactId>-->
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<!-- <version>1.0.1</version>-->
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<!-- </dependency>-->
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<dependency>
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<groupId>dev.langchain4j</groupId>
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<artifactId>langchain4j-open-ai-spring-boot-starter</artifactId>
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<version>1.0.1-beta6</version>
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</dependency>
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<!-- langchain4j Ai service 相关依赖 -->
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<dependency>
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<groupId>dev.langchain4j</groupId>
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<artifactId>langchain4j-spring-boot-starter</artifactId>
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<version>1.0.1-beta6</version>
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</dependency>
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<!-- langchain4j Ai service 相关依赖 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-webflux</artifactId>
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</dependency>
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<dependency>
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<groupId>dev.langchain4j</groupId>
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<artifactId>langchain4j-reactor</artifactId>
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<version>1.0.1-beta6</version>
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</dependency>
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<!-- 配置后，可以查看大模型交互的日志 logback-classic -->
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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<version>1.5.18</version>
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</dependency>
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<!-- 配置后， 链接Redis ，保存会话数据 -->
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-redis</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<annotationProcessorPaths>
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<path>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-configuration-processor</artifactId>
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</path>
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<path>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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</path>
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</annotationProcessorPaths>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<configuration>
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<excludes>
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<exclude>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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</exclude>
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</excludes>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>
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package com.cst.langchain4jheima;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class Langchain4jHeima20250803Application {
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public static void main(String[] args) {
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SpringApplication.run(Langchain4jHeima20250803Application.class, args);
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}
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}
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package com.cst.langchain4jheima.aiservice;
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import dev.langchain4j.service.spring.AiService;
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import dev.langchain4j.service.spring.AiServiceWiringMode;
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/**
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* Author: 李中华 wx: spllzh email(qq): 28668817@qq.com
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* Date: 2025/8/4 10:21
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**/
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@AiService(
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wiringMode = AiServiceWiringMode.EXPLICIT,
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chatModel = "openAiChatModel"
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)
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public interface CstAIService {
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public String chat(String message);
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}
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package com.cst.langchain4jheima.aiservice;
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import dev.langchain4j.service.MemoryId;
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import dev.langchain4j.service.SystemMessage;
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import dev.langchain4j.service.UserMessage;
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import dev.langchain4j.service.spring.AiService;
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import dev.langchain4j.service.spring.AiServiceWiringMode;
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import reactor.core.publisher.Flux;
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/**
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* Author: 李中华 wx: spllzh email(qq): 28668817@qq.com
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* Date: 2025/8/4 11:50
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**/
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@AiService(
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wiringMode = AiServiceWiringMode.EXPLICIT,
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chatModel = "openAiChatModel",
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streamingChatModel = "openAiStreamingChatModel", //配置流式 输出模型
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// chatMemory = "chatMemory", // 配置聊天记忆对象 ，基于内存
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chatMemoryProvider = "chatMemoryProvider"
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)
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public interface CstAIStreamingService {
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@SystemMessage(fromResource = "system.txt")
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public Flux<String> chat(String message);
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@SystemMessage(fromResource = "system.txt")
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public Flux<String> chatMemoryId(@MemoryId String memoryId, @UserMessage String message);
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}
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package com.cst.langchain4jheima.config;
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import com.cst.langchain4jheima.aiservice.CstAIService;
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import dev.langchain4j.memory.ChatMemory;
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import dev.langchain4j.memory.chat.ChatMemoryProvider;
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import dev.langchain4j.memory.chat.MessageWindowChatMemory;
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import dev.langchain4j.model.openai.OpenAiChatModel;
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import dev.langchain4j.service.AiServices;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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/**
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* Author: 李中华 wx: spllzh email(qq): 28668817@qq.com
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* Date: 2025/8/4 10:24
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**/
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@Configuration
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public class CommonConfig {
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@Autowired
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private OpenAiChatModel openAiChatModel;
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// @Bean
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public CstAIService cstAIService() {
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CstAIService cstAIService = AiServices.builder(CstAIService.class)
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.chatModel(openAiChatModel)
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.build();
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return cstAIService;
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}
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@Bean
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public ChatMemory chatMemory() {
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MessageWindowChatMemory build = MessageWindowChatMemory.builder()
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.maxMessages(10)
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.build();
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return build;
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}
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@Bean
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public ChatMemoryProvider chatMemoryProvider() {
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ChatMemoryProvider chatMemoryProvider = new ChatMemoryProvider() {
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@Override
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public ChatMemory get(Object memoryId) {
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MessageWindowChatMemory chatMemory = MessageWindowChatMemory.builder()
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.id(memoryId)
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.maxMessages(10)
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.build();
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return chatMemory;
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}
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};
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return chatMemoryProvider;
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}
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}
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package com.cst.langchain4jheima.controller;
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import com.cst.langchain4jheima.aiservice.CstAIService;
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import com.cst.langchain4jheima.aiservice.CstAIStreamingService;
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import dev.langchain4j.model.openai.OpenAiChatModel;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.bind.annotation.RestController;
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import reactor.core.publisher.Flux;
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/**
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* Author: 李中华 wx: spllzh email(qq): 28668817@qq.com
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* Date: 2025/8/4 10:04
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**/
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@RestController
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public class ChatController
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{
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@Autowired
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private OpenAiChatModel model;
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@Autowired
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CstAIStreamingService streamingModel;
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@GetMapping("/chat")
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public String chat(String question)
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{
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String chat = model.chat(question);
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return chat;
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}
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@Autowired
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private CstAIService cstService;
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@GetMapping("/chatByInterface" )
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public String chatByInterface(String question)
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{
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String chat = cstService.chat(question);
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return chat;
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}
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@GetMapping("/chatByStreaming" )
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public Flux<String> chatByStreaming(String question)
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{
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Flux<String> chat = streamingModel.chat(question);
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return chat;
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}
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/**
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* 通过 memoryId ,实现会话隔离
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* @param memoryId
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* @param question
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* @return
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*/
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@GetMapping("/chatByStreamingByMemoryId" )
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public Flux<String> chatByStreamingByMemoryId(String memoryId,String question)
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{
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Flux<String> chat = streamingModel.chatMemoryId(memoryId,question);
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return chat;
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}
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}
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1
src/main/resources/application.properties
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1
src/main/resources/application.properties
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spring.application.name=Langchain4j-heima20250803
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25
src/main/resources/application.yml
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25
src/main/resources/application.yml
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langchain4j:
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open-ai:
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chat-model:
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base-url: https://dashscope.aliyuncs.com/compatible-mode/v1
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api-key: ${DASHSCOPE_API_KEY}
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model-name: qwen-plus
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log-requests: true
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log-responses: true
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streaming-chat-model:
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base-url: https://dashscope.aliyuncs.com/compatible-mode/v1
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api-key: ${DASHSCOPE_API_KEY}
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model-name: qwen-plus
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log-requests: true
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log-responses: true
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logging:
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level:
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dev.langchain4j: DEBUG
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spring:
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data:
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redis:
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host: localhost
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port: 6379
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13
src/main/resources/system.txt
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13
src/main/resources/system.txt
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你是传智教育提供的专业的AI志愿填报顾问，可以给用户提供如下功能:
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1.查询目标院校的院校简介
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2.查询目标院校的录取规则
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3.查询目标院校的奖学金设置状况
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4.查询目标院校的食宿条件
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5.查询目标院校招生联系方式
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6.查询目标院2024年不同专业录取情况
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7.查询热门专业
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8.查询天坑专业9.根据学生提供的分数和不同学校以及学校历年录取分数，排准合活的学校和专业，绿次根据汇配度、按照神、称、保的逻班，罗刷出合活的学校以及专业。给用户早现时黑要里10.高考志愿填报一对一沟通预约服务
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11.查询志愿指导服务预约详情1.每次回答完用户问题，
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最后都加上一句话:<br/>志愿填报需要考虑的因素有很多，如果要得到专业的志愿填报指导，建议您预约一个一对一的指导服务，是否需要预约2,下预约单需要用户提供生姓名、考生件别、考生电话、考生顶约沟通时间(日期+时间)、考生所在省份、考生预估分数，当用户表达出需要顶约志愿指导服务的意爆后。3.一旦预约成功，最后不要再跟上面第1条指定的话术，而是更改为;恭喜您，一对一志愿指导服务已经预约成功，我们会准时联系您，请注意接听电话!4.给用户的回复中，不要提及类似"根据您提供的信息/根据资料中的信息"这样的话术
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说明:
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你是传智教育提供的智能志愿填报咨询师，只回答有关高考志愿填报的问题，其它问题不予回答。
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31
src/test/java/com/cst/langchain4jheima/AppTest.java
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31
src/test/java/com/cst/langchain4jheima/AppTest.java
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@@ -0,0 +1,31 @@
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package com.cst.langchain4jheima;
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import dev.langchain4j.model.openai.OpenAiChatModel;
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/**
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* Author: 李中华 wx: spllzh email(qq): 28668817@qq.com
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* Date: 2025/8/4 9:55
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**/
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public class AppTest {
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public static void main(String[] args) {
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System.out.println("Hello World!");
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}
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public AppTest( String testName )
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{
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System.out.println( "chatModel Hello World!" );
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// 构建chatmodel对象
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OpenAiChatModel chatModel = OpenAiChatModel.builder()
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.apiKey(System.getenv("DASHSCOPE_API_KEY"))
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.baseUrl("https://dashscope.aliyuncs.com/compatible-mode/v1")
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.modelName("qwen-plus")
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.logRequests(true) // 输出请求大模型的日志
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.logResponses(true)
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.build();
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String chat = chatModel.chat("2008年奥运会，哪个国际金牌最多？");
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System.out.println(chat);
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}
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}
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@@ -0,0 +1,13 @@
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package com.cst.langchain4jheima;
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import org.junit.jupiter.api.Test;
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import org.springframework.boot.test.context.SpringBootTest;
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@SpringBootTest
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class Langchain4jHeima20250803ApplicationTests {
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@Test
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void contextLoads() {
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}
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}
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Block a user