SpringBoot接入deepseek深度求索示例代码(jdk1.8)

仗酒祓清愁 · 发表于 2025-2-17 18:22:13

1. 创建 API key

deepseek API keys

新用户会有500万的免费token额度

2. 封装询问deepseek的工具方法

添加key值和询问路径。API_KEY为你创建的key值。这个在配置文件或者是写在常量文件都可以，我这是写在配置文件里了

接下来就是代码实例了

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.zhiwonders.paperserver.service.IAuthService;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
@RestController
@RequestMapping("/api/v1")
@Slf4j
public class OpenAIController {
@Value("${ai.config.deepseek.apiKey}")
private String API_KEY;
@Value("${ai.config.deepseek.baseUrl}")
private String API_URL;
@Autowired
private IAuthService authService;
private final ExecutorService executorService = Executors.newCachedThreadPool();
private final ObjectMapper objectMapper = new ObjectMapper();
@PostMapping(value = "/chat", produces = MediaType.TEXT_EVENT_STREAM_VALUE)
public SseEmitter chat(
// @RequestHeader("Authorization")String token,
@RequestBody String question) {
// String openid = authService.openid(token);
// if (openid == null) {
// throw new RuntimeException("用户未登录");
// }
SseEmitter emitter = new SseEmitter(-1L);
executorService.execute(() -> {
try {
log.info("流式回答开始,问题:{}", question);
try (CloseableHttpClient client = HttpClients.createDefault()) {
HttpPost request = new HttpPost(API_URL);
request.setHeader("Content-Type", "application/json");
request.setHeader("Authorization", "Bearer " + API_KEY);
Map<String, Object> message = new HashMap<>();
message.put("role", "user");
message.put("content", question);
Map<String, Object> requestMap = new HashMap<>();
requestMap.put("model", "deepseek-chat");
requestMap.put("messages", Collections.singletonList(message));
requestMap.put("stream", true);
String requestBody = objectMapper.writeValueAsString(requestMap);
request.setEntity(new StringEntity(requestBody, StandardCharsets.UTF_8));
try (CloseableHttpResponse response = client.execute(request);
BufferedReader reader = new BufferedReader(
new InputStreamReader(response.getEntity().getContent(), StandardCharsets.UTF_8))) {
String line;
while ((line = reader.readLine()) != null) {
if (line.startsWith("data: ")) {
String jsonData = line.substring(6);
if ("[DONE]".equals(jsonData)) {
break;
}
JsonNode node = objectMapper.readTree(jsonData);
String content = node.path("choices")
.path(0)
.path("delta")
.path("content")
.asText("");
if (!content.isEmpty()) {
emitter.send(content);
}
}
}
log.info("流式回答结束,{}",question);
emitter.complete();
}
} catch (Exception e) {
log.error("处理 Deepseek 请求时发生错误", e);
emitter.completeWithError(e);
}
} catch (Exception e) {
log.error("处理 Deepseek 请求时发生错误", e);
emitter.completeWithError(e);
}
});
return emitter;
}
}

复制代码

3.调用测试

curl -v -X POST \
http://localhost:8091/api/v1/chat \
-H "Content-Type: application/json" \
-d '"帮我写一篇2000字的我的祖国的文字"' \
--no-buffer

复制代码

打开终端输入上述命令回车即可但是端口必须要和你后端的一致我这里是8091

4.运行结果

总结

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邢韦茹 · 发表于 4 天前

顶顶更健康！！！

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