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> */@Slf4jpublic 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 ???}}使用httpClient调用接口获取响应数据
原文地址：https://www.cnblogs.com/yadongliang/p/9665532.html