package com.panzhihua.common.utlis;
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import com.panzhihua.common.constants.HttpConstant;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.http.Header;
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import org.apache.http.HttpEntity;
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import org.apache.http.HttpResponse;
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import org.apache.http.client.HttpClient;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.entity.StringEntity;
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import org.apache.http.message.BasicHeader;
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import org.apache.http.util.EntityUtils;
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import org.springframework.util.ObjectUtils;
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import java.io.IOException;
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/**
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* @program: springcloud_k8s_panzhihuazhihuishequ
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* @description:
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* @author: huang.hongfa weixin hhf9596 qq 959656820
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* @create: 2021-01-08 10:23
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**/
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@Slf4j
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public class HttpClientUtil {
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/**
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* 通过post方式调用http接口
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* @param url url路径
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* @param jsonParam json格式的参数
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* @param reSend 重发次数
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* @param headerKey header键值
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* @param headerValue headervalue
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* @return
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* @throws Exception
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*/
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public static String sendPostByJson(String url, String jsonParam,int reSend,String headerKey,String headerValue) {
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//声明返回结果
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String result = "";
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//开始请求API接口时间
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long startTime=System.currentTimeMillis();
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//请求API接口的响应时间
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long endTime= 0L;
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HttpEntity httpEntity = null;
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HttpResponse httpResponse = null;
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HttpClient httpClient = null;
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try {
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// 创建连接
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httpClient = HttpClientFactory.getInstance().getHttpClient();
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// 设置请求头和报文
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HttpPost httpPost = HttpClientFactory.getInstance().httpPost(url);
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Header header=new BasicHeader("Accept-Encoding",null);
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httpPost.setHeader(header);
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if (!ObjectUtils.isEmpty(headerKey)) {
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httpPost.setHeader(headerKey,headerValue);
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}
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// 设置报文和通讯格式
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StringEntity stringEntity = new StringEntity(jsonParam, HttpConstant.UTF8_ENCODE);
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stringEntity.setContentEncoding(HttpConstant.UTF8_ENCODE);
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stringEntity.setContentType(HttpConstant.APPLICATION_JSON);
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httpPost.setEntity(stringEntity);
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log.info("请求{}接口的参数为{}",url,jsonParam);
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//执行发送，获取相应结果
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httpResponse = httpClient.execute(httpPost);
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httpEntity= httpResponse.getEntity();
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result = EntityUtils.toString(httpEntity);
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} catch (Exception e) {
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log.error("请求{}接口出现异常",url,e);
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if (reSend > 0) {
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log.info("请求{}出现异常:{}，进行重发。进行第{}次重发",url,e.getMessage(),(HttpConstant.REQ_TIMES-reSend +1));
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result = sendPostByJson(url, jsonParam, reSend - 1,headerKey,headerValue);
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if (result != null && !"".equals(result)) {
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return result;
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}
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}
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}finally {
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try {
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EntityUtils.consume(httpEntity);
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} catch (IOException e) {
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log.error("http请求释放资源异常",e);
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}
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}
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//请求接口的响应时间
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endTime=System.currentTimeMillis();
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log.info("请求{}接口的响应报文内容为{},本次请求API接口的响应时间为:{}毫秒",url,result,(endTime-startTime));
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return result;
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}
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}
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