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+package com.chinaitop.depot.utils;
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+import org.apache.http.*;
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+import org.apache.http.client.HttpClient;
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+import org.apache.http.client.entity.UrlEncodedFormEntity;
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+import org.apache.http.client.methods.CloseableHttpResponse;
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+import org.apache.http.client.methods.HttpGet;
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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.impl.client.CloseableHttpClient;
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+import org.apache.http.impl.client.DefaultHttpClient;
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+import org.apache.http.impl.client.HttpClientBuilder;
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+import org.apache.http.impl.client.HttpClients;
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+import org.apache.http.message.BasicNameValuePair;
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+import org.apache.http.protocol.HTTP;
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+import org.apache.http.util.EntityUtils;
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+import org.springframework.http.HttpHeaders;
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+import org.springframework.http.converter.HttpMessageConverter;
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+import org.springframework.http.converter.StringHttpMessageConverter;
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+import org.springframework.web.client.RestTemplate;
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+
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+import java.io.BufferedReader;
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+import java.io.IOException;
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+import java.io.InputStreamReader;
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+import java.net.URI;
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+import java.nio.charset.StandardCharsets;
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+import java.util.ArrayList;
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+import java.util.Iterator;
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+import java.util.List;
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+import java.util.Map;
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+
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+/**
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+ * @author qingsong.han
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+ * @description: http工具类
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+ * @create 2020-04-19 12:48
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+ */
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+public class HttpUtil {
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+
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+ /**
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+ * 使用apache的HttpClient发送http
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+ *
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+ * @param wsdlURL
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+ * 请求URL
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+ * @param contentType
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+ * 如:application/json;charset=utf8
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+ * @param content
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+ * 数据内容
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+ * @DATE 2018年9月22日 下午10:29:17
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+ */
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+ public static String doHttpPostByHttpClient(final String wsdlURL, final String contentType, final String content) throws IOException {
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+ // 获得Http客户端(可以理解为:你得先有一个浏览器;注意:实际上HttpClient与浏览器是不一样的)
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+ CloseableHttpClient httpClient = HttpClientBuilder.create().build();
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+ // 创建Post请求
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+// HttpPost httpPost = new HttpPost(wsdlURL);
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+ HttpGet httpGet = new HttpGet(wsdlURL);
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+ /*StringEntity entity = new StringEntity(content, "UTF-8");
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+ // 将数据放入entity中
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+ httpPost.setEntity(entity);
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+ httpPost.setHeader("Content-Type", contentType);*/
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+ // 响应模型
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+ CloseableHttpResponse response = null;
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+ String result = "";
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+ try {
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+ // 由客户端执行(发送)Post请求
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+// response = httpClient.execute(httpPost);
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+ response = httpClient.execute(httpGet);
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+ // 从响应模型中获取响应实体
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+ // 注意:和doHttpPostByRestTemplate方法用的不是同一个HttpEntity
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+ HttpEntity responseEntity = response.getEntity();
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+ System.out.println("响应ContentType为:" + responseEntity.getContentType());
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+ System.out.println("响应状态为:" + response.getStatusLine());
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+ if (responseEntity != null) {
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+ result = EntityUtils.toString(responseEntity);
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+ System.out.println("响应内容为:" + result);
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+ }
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+ } finally {
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+ // 释放资源
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+ if (httpClient != null) {
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+ httpClient.close();
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+ }
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+ if (response != null) {
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+ response.close();
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+ }
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+ }
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+ return result;
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+ }
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+
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+ /**
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+ * 使用springframework的RestTemplate发送http
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+ *
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+ * @param wsdlURL
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+ * 请求URL
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+ * @param contentType
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+ * 如:application/json;charset=utf8
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+ * @param content
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+ * 数据内容
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+ * @DATE 2018年9月22日 下午10:30:48
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+ */
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+ public static String doHttpPostByRestTemplate(final String wsdlURL, final String contentType, final String content) {
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+ // http使用无参构造;https需要使用有参构造
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+ RestTemplate restTemplate = new RestTemplate();
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+ // 解决中文乱码
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+ List<HttpMessageConverter<?>> converterList = restTemplate.getMessageConverters();
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+ converterList.remove(1);
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+ HttpMessageConverter<?> converter = new StringHttpMessageConverter(StandardCharsets.UTF_8);
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+ converterList.add(1, converter);
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+ restTemplate.setMessageConverters(converterList);
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+ // 设置Content-Type
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+ HttpHeaders headers = new HttpHeaders();
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+ headers.remove("Content-Type");
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+ headers.add("Content-Type", contentType);
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+ // 数据信息封装
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+ // 注意:和doHttpPostByHttpClient方法用的不是同一个HttpEntity
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+ org.springframework.http.HttpEntity<String> formEntity = new org.springframework.http.HttpEntity<String>(
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+ content, headers);
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+ String result = restTemplate.postForObject(wsdlURL, formEntity, String.class);
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+ return result;
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+ }
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+
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+ /**
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+ * post请求(用于key-value格式的参数)
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+ * @param url
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+ * @param params
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+ * @return
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+ */
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+ public static String doPost(String url, Map params){
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+
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+ BufferedReader in = null;
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+ try {
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+ // 定义HttpClient
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+ HttpClient client = new DefaultHttpClient();
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+ // 实例化HTTP方法
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+ HttpPost request = new HttpPost();
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+ request.setURI(new URI(url));
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+ //设置参数
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+ List<NameValuePair> nvps = new ArrayList<NameValuePair>();
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+ for (Iterator iter = params.keySet().iterator(); iter.hasNext();) {
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+ String name = (String) iter.next();
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+ String value = String.valueOf(params.get(name));
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+ nvps.add(new BasicNameValuePair(name, value));
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+
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+ //System.out.println(name +"-"+value);
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+ }
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+ request.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
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+
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+ HttpResponse response = client.execute(request);
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+ int code = response.getStatusLine().getStatusCode();
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+ if(code == 200){ //请求成功
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+ in = new BufferedReader(new InputStreamReader(response.getEntity()
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+ .getContent(),"utf-8"));
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+ StringBuffer sb = new StringBuffer("");
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+ String line = "";
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+ String NL = System.getProperty("line.separator");
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+ while ((line = in.readLine()) != null) {
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+ sb.append(line + NL);
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+ }
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+
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+ in.close();
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+
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+ return sb.toString();
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+ }
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+ else{ //
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+ System.out.println("状态码:" + code);
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+ return null;
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+ }
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+ }
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+ catch(Exception e){
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+ e.printStackTrace();
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+
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+ return null;
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+ }
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+ }
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+
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+ /**
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+ * get请求
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+ * @return
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+ */
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+ public static String doGet(String url) {
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+ try {
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+ HttpClient client = new DefaultHttpClient();
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+ //发送get请求
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+ HttpGet request = new HttpGet(url);
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+ HttpResponse response = client.execute(request);
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+
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+ /**请求发送成功,并得到响应**/
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+ if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
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+ /**读取服务器返回过来的json字符串数据**/
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+ String strResult = EntityUtils.toString(response.getEntity());
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+
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+ return strResult;
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+ }
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+ }
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+ catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+
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+ return null;
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+ }
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+
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+ /**
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+ * post请求(用于请求json格式的参数)
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+ * @param url
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+ * @param params
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+ * @return
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+ */
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+ public static String doPost(String url, String params) throws Exception {
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+
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+ CloseableHttpClient httpclient = HttpClients.createDefault();
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+ HttpPost httpPost = new HttpPost(url);// 创建httpPost
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+ httpPost.setHeader("Accept", "application/json");
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+// httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");
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+ httpPost.setHeader("Content-Type", "application/json");
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+ String charSet = "UTF-8";
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+ StringEntity entity = new StringEntity(params, charSet);
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+ httpPost.setEntity(entity);
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+ CloseableHttpResponse response = null;
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+
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+ try {
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+
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+ response = httpclient.execute(httpPost);
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+ StatusLine status = response.getStatusLine();
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+ int state = status.getStatusCode();
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+ if (state == HttpStatus.SC_OK) {
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+ HttpEntity responseEntity = response.getEntity();
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+ String jsonString = EntityUtils.toString(responseEntity);
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+ return jsonString;
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+ }
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+ }
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+ finally {
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+ if (response != null) {
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+ try {
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+ response.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ try {
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+ httpclient.close();
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+ } catch (IOException e) {
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+ e.printStackTrace();
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+ }
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+ }
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+ return null;
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+ }
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+}
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