lostecho/langchain4j-ai-java
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Initial commit

Browse Source
This commit is contained in:
userpu
2025-12-17 19:47:14 +08:00
commit 0d15e20780
119 changed files with 3582 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
langchain4j-ai-model-params/pom.xml Normal file
View File

@@ -0,0 +1,51 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.iwe3</groupId>
<artifactId>langchain4j-ai-java</artifactId>
<version>1.0-SNAPSHOT</version>
</parent>
<artifactId>langchain4j-ai-model-params</artifactId>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>5.8.39</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--导入低阶依赖-->
<dependency>
<groupId>dev.langchain4j</groupId>
<artifactId>langchain4j-open-ai-spring-boot-starter</artifactId>
<version>1.9.1-beta17</version>
</dependency>
<!--导入高阶依赖-->
<dependency>
<groupId>dev.langchain4j</groupId>
<artifactId>langchain4j-spring-boot-starter</artifactId>
<version>1.9.1-beta17</version>
</dependency>
</dependencies>
</project>

12
langchain4j-ai-model-params/src/main/java/com/iwe3/langchain4j/ModelParamsApplication.java Normal file
View File

@@ -0,0 +1,12 @@
package com.iwe3.langchain4j;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ModelParamsApplication {
public static void main(String[] args) {
SpringApplication.run(ModelParamsApplication.class,args);
}
}

45
langchain4j-ai-model-params/src/main/java/com/iwe3/langchain4j/config/LLMConfig.java Normal file
View File

@@ -0,0 +1,45 @@
package com.iwe3.langchain4j.config;
import com.iwe3.langchain4j.listener.UserpuChatModelListener;
import dev.langchain4j.model.chat.ChatModel;
import dev.langchain4j.model.openai.OpenAiChatModel;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import java.time.Duration;
import java.util.List;
@Configuration
public class LLMConfig {
@Bean(name = "qwen")
public ChatModel chatModelQwen(){
/*模型3件套：apikey - modelName - baseUrl */
return OpenAiChatModel.builder()
.apiKey(System.getenv("DASH_SCOPE_API_KEY"))
.modelName("qwen-plus")
.baseUrl("https://dashscope.aliyuncs.com/compatible-mode/v1")
.logRequests(true)
.logResponses(true)
.listeners(List.of(new UserpuChatModelListener()))
.maxRetries(3)
.timeout(Duration.ofSeconds(5))
.build();
}
/**
* @Description:
* 知识出处，https://api-docs.deepseek.com/zh-cn/
*/
@Bean(name = "deepseek")
public ChatModel chatModelDeepSeek(){
return
OpenAiChatModel.builder()
.apiKey(System.getenv("DEEP_SEEK_API_KEY"))
.modelName("deepseek-chat")
//.modelName("deepseek-reasoner")
.baseUrl("https://api.deepseek.com/v1")
.build();
}
}

27
langchain4j-ai-model-params/src/main/java/com/iwe3/langchain4j/controller/ModelParameterController.java Normal file
View File

@@ -0,0 +1,27 @@
package com.iwe3.langchain4j.controller;
import dev.langchain4j.model.chat.ChatModel;
import jakarta.annotation.Resource;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
@RestController
@Slf4j
public class ModelParameterController
{
@Resource(name = "qwen")
private ChatModel chatModelQwen;
// http://localhost:9004/lc4j/modelparam/config?prompt=我是谁
@GetMapping(value = "/lc4j/modelparam/config")
public String config(@RequestParam(value = "prompt", defaultValue = "你是谁") String prompt)
{
var result = chatModelQwen.chat(prompt);
System.out.println("通过langchain4j调用模型返回结果："+result);
return result;
}
}

36
langchain4j-ai-model-params/src/main/java/com/iwe3/langchain4j/listener/UserpuChatModelListener.java Normal file
View File

@@ -0,0 +1,36 @@
package com.iwe3.langchain4j.listener;
import cn.hutool.core.util.IdUtil;
import dev.langchain4j.model.chat.listener.ChatModelErrorContext;
import dev.langchain4j.model.chat.listener.ChatModelListener;
import dev.langchain4j.model.chat.listener.ChatModelRequestContext;
import dev.langchain4j.model.chat.listener.ChatModelResponseContext;
import lombok.extern.slf4j.Slf4j;
@Slf4j
public class UserpuChatModelListener implements ChatModelListener
{
@Override
public void onRequest(ChatModelRequestContext requestContext)
{
// onRequest配置的k:v键值对，在onResponse阶段可以获得，上下文传递参数好用
String uuidValue = IdUtil.simpleUUID();
requestContext.attributes().put("TraceID",uuidValue);
log.info("请求参数requestContext:{}", requestContext+"\t"+uuidValue);
}
@Override
public void onResponse(ChatModelResponseContext responseContext)
{
Object object = responseContext.attributes().get("TraceID");
log.info("返回结果responseContext:{}", object);
}
@Override
public void onError(ChatModelErrorContext errorContext)
{
log.error("请求异常ChatModelErrorContext:{}", errorContext);
}
}

9
langchain4j-ai-model-params/src/main/resources/application.yml Normal file
View File

@@ -0,0 +1,9 @@
server:
port: 9004
spring:
application:
name: langchain4j-ai-model-params
logging:
level:
dev:
langchain4j: debug