使用httpClient调用接口获取响应数据

转自:https://blog.csdn.net/shuaishuaidewo/article/details/81136088

import lombok.extern.slf4j.Slf4j;
import okhttp3.*;

/**
* 需要注入依赖
*  <dependency>
*         <groupId>com.squareup.okhttp3</groupId>
*        <artifactId>okhttp</artifactId>
*        <version>3.6.0</version>
*  </dependency>
*/
@Slf4j
public class HttpClientUtils {

public static final MediaType JSON = MediaType.parse("application/json;charset=utf-8");

/**
* get请求获取请求数据
* @param url
* @return
*/
public static String httpGet(String url){
String getData ;
OkHttpClient httpClient = new OkHttpClient();
Request request = new Request.Builder()
.url(url)
.build();
try {
Response response = httpClient.newCall(request).execute();
getData = response.body().string();

}catch (Exception e){
log.info("【发送 GET 请求出现异常】！" + e.getMessage());
return "-1";
}
return getData;
}

/**
* post请求获取请求数据
* @param url
* @param json
* json数据的生成方式（可选）；
*      JSONObject json=new JSONObject();
*      json.put("name","张三");
*      json.put("sex","男");等
*      json.toString()
* @return
*/
public static String httpPost(String url, String json){
String postData ;
OkHttpClient httpClient = new OkHttpClient();
RequestBody requestBody = RequestBody.create(JSON, json);
Request request = new Request.Builder()
.url(url)
.post(requestBody)
.build();
try {
Response response = httpClient.newCall(request).execute();
postData = response.body().string();
}catch (Exception e){
log.info("【发送 POST 请求出现异常】！" + e.getMessage());
return "-1";
}
return postData;
}

public static void main(String[] args) {
String loadJSON = httpGet("https://vhouyun.com/goods/RankGoodsList?day=yesterday&role=3");
System.out.println(loadJSON);
//post方式请求自己测试即可
}

}