package com.yihu.wlyy.util; import java.io.IOException; import java.io.UnsupportedEncodingException; import java.util.List; import org.apache.http.HttpEntity; import org.apache.http.NameValuePair; import org.apache.http.ParseException; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.util.EntityUtils; public class HttpClientUtil { /** * 发送post请求 * @param url 请求地址 * @param params 请求参数 * @param chatSet 编码格式 * @return */ public static String post(String url, List params, String chatSet) { // 创建默认的httpClient实例. CloseableHttpClient httpclient = HttpClients.createDefault(); // 创建httppost HttpPost httppost = new HttpPost(url); UrlEncodedFormEntity uefEntity; try { uefEntity = new UrlEncodedFormEntity(params, chatSet); httppost.setEntity(uefEntity); CloseableHttpResponse response = httpclient.execute(httppost); try { HttpEntity entity = response.getEntity(); if (entity != null) { return EntityUtils.toString(entity, chatSet); } } finally { response.close(); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (UnsupportedEncodingException e1) { e1.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { // 关闭连接,释放资源 try { httpclient.close(); } catch (IOException e) { e.printStackTrace(); } } return null; } /** * 发送get请求 * @param url 请求地址 * @param chatSet 编码格式 * @return */ public static String get(String url, String chatSet) { CloseableHttpClient httpclient = HttpClients.createDefault(); try { // 创建httpget. HttpGet httpget = new HttpGet(url); // 执行get请求. CloseableHttpResponse response = httpclient.execute(httpget); try { // 获取响应实体 HttpEntity entity = response.getEntity(); if (entity != null) { return EntityUtils.toString(entity, chatSet); } } finally { response.close(); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (ParseException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { // 关闭连接,释放资源 try { httpclient.close(); } catch (IOException e) { e.printStackTrace(); } } return null; } }