JAVA连接DeepSeek API接口

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import okhttp3.*;
import java.io.IOException;
import java.util.concurrent.TimeUnit;


/**
 * date: 2025/3/15
 */


public class DeepSeek {


    private String apiKey = "向官网申请一个API密钥";

    private String apiUrl = "https://api.deepseek.com/chat/completions";//请求网站


    public String getFoodInfo(String foodName) throws IOException {
       //发送请求的内容
    String gs = foodName+",你给我该食物的名称,热量,营养成分,好处,坏处,图片地址。如 草莓      32/49(卡路里/克)        " +
                "碳水化合物：约8克，主要为天然糖。膳食纤维：约2克，有助于消化和饱腹感。维生素C：约98%的每日推荐摄入量，支持免疫系统和皮肤健康。" +
                "锰：约24%的每日推荐摄入量，有助于骨骼健康和代谢功能。抗氧化剂：如花青素，有助于减少炎症和氧化应激。       " +
                "增强免疫力：高维生素C含量有助于增强免疫系统。支持心脏健康：抗氧化剂有助于降低胆固醇和血压。促进消化：纤维有助于预防便秘。       " +
                "农药残留：草莓常被列为农药残留较高的水果之一，建议清洗干净或选择有机草莓。过敏反应：部分人可能对草莓过敏。       " +
                "/static/images/strawberry.jpg ,每个属性用一个@键隔开";
        // 创建 OkHttpClient 实例，设置超时时间
        OkHttpClient client = new OkHttpClient().newBuilder()
                .readTimeout(30, TimeUnit.SECONDS) // 读取超时
                .connectTimeout(30, TimeUnit.SECONDS) // 连接超时
                .build();

        // 构建请求体（JSON 格式）
        MediaType mediaType = MediaType.parse("application/json");
        String jsonBody = "{\n" +
                "  \"messages\": [\n" +
                "    {\n" +
                "      \"content\": \"You are a helpful assistant\",\n" +
                "      \"role\": \"system\"\n" +
                "    },\n" +
                "    {\n" +
                "      \"content\": \""+gs+"\",\n" +
                "      \"role\": \"user\"\n" +
                "    }\n" +
                "  ],\n" +
                "  \"model\": \"deepseek-chat\",\n" +
                "  \"frequency_penalty\": 0,\n" +
                "  \"max_tokens\": 2048,\n" +
                "  \"presence_penalty\": 0,\n" +
                "  \"response_format\": {\n" +
                "    \"type\": \"text\"\n" +
                "  },\n" +
                "  \"stop\": null,\n" +
                "  \"stream\": false,\n" +
                "  \"stream_options\": null,\n" +
                "  \"temperature\": 1,\n" +
                "  \"top_p\": 1,\n" +
                "  \"tools\": null,\n" +
                "  \"tool_choice\": \"none\",\n" +
                "  \"logprobs\": false,\n" +
                "  \"top_logprobs\": null\n" +
                "}";
        RequestBody body = RequestBody.create(mediaType, jsonBody);
        System.out.println("key -- >"+apiKey +"\nurl -- >"+apiUrl);
        // 构建请求
        Request request = new Request.Builder()
                .url(apiUrl)
                .method("POST", body)
                .addHeader("Content-Type", "application/json")
                .addHeader("Accept", "application/json")
                .addHeader("Authorization", "Bearer " + apiKey) // 添加认证头
                .build();

        // 发送请求并处理响应
        try (Response response = client.newCall(request).execute()) {
            if (response.isSuccessful()) {
                String responseBody = response.body().string();
                JSONObject jsonObject = JSON.parseObject(responseBody);
//                System.out.println("Response: " + responseBody);
//                System.out.println(jsonObject.toJSONString());
                //提取 choices 数组
                JSONArray choicesArray = jsonObject.getJSONArray("choices");

                // 遍历 choices 数组
                for (int i = 0; i < choicesArray.size(); i++) {
                    JSONObject choiceObject = choicesArray.getJSONObject(i);
                    JSONObject messageObject = choiceObject.getJSONObject("message");

                    // 提取 content 属性
                    String content = messageObject.getString("content");
                    System.out.println("Content: " + content);
                        //我们最后想要的结果
                    return content;
                }

            } else {
                System.out.println("Request failed with code: " + response.code());
                System.out.println("Error message: " + response.body().string());
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

}

下面是申请密钥的步骤