1、pom文件

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>3.4.3</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.langfuse</groupId><artifactId>spring-ai-demo</artifactId><version>0.0.1-SNAPSHOT</version><name>spring-ai-demo</name><description>Spring AI demo project for Spring Boot</description><url/><properties><java.version>21</java.version></properties><dependencyManagement><dependencies><dependency><groupId>io.opentelemetry.instrumentation</groupId><artifactId>opentelemetry-instrumentation-bom</artifactId><version>2.14.0</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.ai</groupId><artifactId>spring-ai-openai-spring-boot-starter</artifactId><version>1.0.0-M6</version><exclusions><exclusion><groupId>org.springframework.ai</groupId><artifactId>spring-ai-openai</artifactId></exclusion></exclusions></dependency><dependency><groupId>org.springframework.ai</groupId><artifactId>spring-ai-openai</artifactId><version>1.0.0-M6-XIN</version></dependency><dependency><groupId>com.squareup.okhttp3</groupId><artifactId>okhttp</artifactId><version>4.12.0</version></dependency><dependency><groupId>io.projectreactor.netty</groupId><artifactId>reactor-netty</artifactId><version>1.3.0-M1</version></dependency><!-- Spring AI needs a reactive web server to run for some reason--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>io.opentelemetry.instrumentation</groupId><artifactId>opentelemetry-spring-boot-starter</artifactId></dependency><!-- Spring Boot Actuator for observability support --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency><!-- Micrometer Observation -> OpenTelemetry bridge --><dependency><groupId>io.micrometer</groupId><artifactId>micrometer-tracing-bridge-otel</artifactId></dependency><!-- OpenTelemetry OTLP exporter for traces --><dependency><groupId>io.opentelemetry</groupId><artifactId>opentelemetry-exporter-otlp</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build>
</project>

2、配置文件

spring:application:name: java-demoai:chat:observations:include-prompt: true       # Include prompt content in tracing (disabled by default for privacy)include-completion: true   # Include completion content in tracing (disabled by default)openai:api-key: "not empty"base-url: http://192.168.3.100:9997#  兼容其他OpenAI格式的大模型配置示例chat:options:# 模型ID,需要替換為實際的接入點IDmodel: qwen2-instructmanagement:tracing:sampling:probability: 1.0    # Sample 100% of requests for full tracing (adjust in production as needed)observations:annotations:enabled: true       # Enable @Observed (if you use observation annotations in code)# sk-lf-c8d2601e-xxxx-xxxx-b10f-9275c48878a7
# pk-lf-b23b07b2-oooo-oooo-a689-c658d36ab616
# http://192.168.3.100:33000
#  pk-lf-b23b07b2-oooo-oooo-a689-c658d36ab616:sk-lf-c8d2601e-xxxx-xxxx-b10f-9275c48878a7# sk-lf-29ac1c23-xxxx-xxxx-b5cb-606fcff3be92
# pk-lf-2efef304-oooo-oooo-9bb5-84147f8dce94
# pk-lf-2efef304-oooo-oooo-9bb5-84147f8dce94:sk-lf-29ac1c23-xxxx-xxxx-b5cb-606fcff3be92#  pk-lf-2cbd8bc2-xxxx-xxxx-bad8-9eab53553926
#  sk-lf-11e8581c-oooo-oooo-9b02-5d89cefff193# pk-lf-2cbd8bc2-xxxx-xxxx-bad8-9eab53553926:sk-lf-11e8581c-oooo-oooo-9b02-5d89cefff193otel:exporter:otlp:endpoint: http://117.xx.xxx.4:3000/api/public/otelheaders:Authorization: Basic cGstbGYtMmNiZDhiYzItMWMzYS00NmE3LWJhZDgtOWVhYjUzNTUzOTI2OnNrLWxmLTExZTg1ODFjLWYxM2MtNGZlMC05YjAyLTVkODljZWZmZjE5Mw==#   Authorization =  Basic 加空格 加 pk:sk的base64server:port: 58000

3、service代碼

package com.langfuse.springai;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.ai.chat.client.ChatClient;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Service;@Service
public class ChatService {static final Logger LOGGER = LoggerFactory.getLogger(ChatService.class);private final ChatClient chatClient;public ChatService(ChatClient.Builder builder) {chatClient = builder.build();}public String testAiCall() {LOGGER.info("Invoking LLM");String answer = chatClient.prompt("Reply with the word 'java'").call().content();LOGGER.info("AI answered: {}", answer);return answer;}
}

controller代碼

package com.langfuse.springai;import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
@RequestMapping("/v1/chat")
public class ChatController {private final ChatService chatService;public ChatController(ChatService chatService) {this.chatService = chatService;}@GetMappingpublic String get() {return chatService.testAiCall();}
}

啟動類

package com.langfuse.springai;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication
public class SpringAiDemoApplication {public static void main(String[] args) {SpringApplication.run(SpringAiDemoApplication.class, args);}
}

4、訪問地址

http://localhost:58000/v1/chat

5、langfuse地址

http://xxx.xxx.xx.4:3000/project/cma6p4ytt0005o207mv7dm6rw/traces

如下