Retrofit：后端发送HTTP请求

引入Maven依赖：

<dependency>
     <groupId>com.github.lianjiatech</groupId>
     <artifactId>retrofit-spring-boot-starter</artifactId>
     <version>2.2.5</version>
</dependency>

定义HTTP接口：

import com.alibaba.fastjson.JSONObject;
import com.github.lianjiatech.retrofit.spring.boot.annotation.RetrofitClient;
import retrofit2.http.*;
import java.util.Map;

@RetrofitClient(baseUrl = "https://api.doctorxiong.club")
public interface httpApi {

    @GET("/v1/fund?code=202015,007339")
    Map<String,Object> httpGetTest();

    @POST("/v1/fund/rank")
    Map<String,Object> httpPostTest(@Body JSONObject jsonObject);
    
}

将HTTP接口注入Service中使用：

@Service
public class testServiceImpl {
    @Autowired
    private httpApi httpApi;

    @Scheduled(cron = "*/5 * * * * ?")
    public void TestTask() {
        JSONObject jsonObject = new JSONObject();
        List<Object> list = new ArrayList<>();
        list.add("zs");
        jsonObject.put("fundType",list);
        jsonObject.put("sort","z");
        List<Object> list1 = new ArrayList<>();
        list1.add("80000248");
        jsonObject.put("fundCompany",list1);
        jsonObject.put("pageIndex",1);
        jsonObject.put("pageSize",10);
        System.out.println(jsonObject);
        Map<String, Object> getMap = httpApi.httpGetTest();
        System.out.println(getMap);
        Map<String, Object> postMap = httpApi.httpPostTest(jsonObject);
        System.out.println(postMap);
    }

}

可使用的HTTP网址：https://www.doctorxiong.club/api/#api-Fund-fund

Retrofit 的GitHub官网：https://github.com/LianjiaTech/retrofit-spring-boot-starter

Retrofit 的官网文档：https://square.github.io/retrofit/#introduction