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Java 接入deepseek(非流式)

news 来源：原创 2025/4/21 0:46:27

一、官方文档

首次调用 API | DeepSeek API Docs

二、获取密钥

DeepSeek

三、配置

1、yaml

openai:config:deepseekApiurl: https://api.deepseek.com/v1/chat/completionsdeepseekApikey: yourscrect

2、获取配置

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;@Component
@Data
@ConfigurationProperties(prefix = "openai.config")
public class OpenaiUrlAndSecert {private String deepseekApiurl;private String deepseekApikey;
}

四、工具类

1、消息发送实体

import lombok.Builder;
import lombok.Data;import java.util.List;@Data
@Builder
public class DeepSeekRequestModel {/*** 所用DeepSeek模型*/private String model;private List<Message> messages;/*** 消息体*/@Data@Builderpublic static class Message {private String role;private String content;}
}

2、发送消息方法

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import okhttp3.*;import java.io.IOException;
import java.util.Collections;
import java.util.concurrent.TimeUnit;public class DeepSeekSendMessage {private final OkHttpClient client = new OkHttpClient().newBuilder().connectTimeout(15, TimeUnit.SECONDS).readTimeout(60, TimeUnit.SECONDS).build();public String getResponse(String apiurl, String apikey, String prompt) throws IOException {// 构建请求体DeepSeekRequestModel.Message message = DeepSeekRequestModel.Message.builder().role("user").content(prompt).build();DeepSeekRequestModel requestBody = DeepSeekRequestModel.builder().model("deepseek-chat").messages(Collections.singletonList(message)).build();//构建请求体json：{"messages":[{"content":"你好，DeepSeek！","role":"user"}],"model":"deepseek-chat"}String jsonBody = JSON.toJSONString(requestBody);// 创建HTTP请求Request request = new Request.Builder().url(apiurl).post(RequestBody.create(jsonBody, MediaType.get("application/json"))).addHeader("Authorization", "Bearer " + apikey).build();// 发送请求并处理响应try (Response response = client.newCall(request).execute()) {//如果响应成功，并且返回体有内容，就输出内容，否则表示响应失败if (response.isSuccessful() && response.body() != null) {String responseBody = response.body().string();JSONObject jsonResponse = JSON.parseObject(responseBody);JSONArray choices = jsonResponse.getJSONArray("choices");if (choices != null && !choices.isEmpty()) {JSONObject firstChoice = choices.getJSONObject(0);JSONObject messageResult = firstChoice.getJSONObject("message");return messageResult.getString("content");}}return response.body().string();}}}

五、调用方法

1、controller

    @GetMapping("/deepseek")@Operation(summary = "deepseek")@Parameter(name = "message", description = "内容", required = true)public CommonResult<String> deepseek(@RequestParam("message") String message) throws IOException {return success(testService.deepseek(message));}

2、service

    /*** 获取deepseek生成* @param message* @return*/String deepseek(String message) throws IOException;

3、impl

    @Resourceprivate OpenaiUrlAndSecert openaiUrlAndSecert;    @Overridepublic String deepseek(String message) throws IOException {return new DeepSeekSendMessage().getResponse(openaiUrlAndSecert.getDeepseekApiurl(),openaiUrlAndSecert.getDeepseekApikey(),message);}