http://zeusami.iteye.com/blog/1172864
package com.alibaba.xteam.web.travel.module.rpc; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.URL; import java.net.URLConnection; import java.util.List; import java.util.Map; import org.apache.http.client.ClientProtocolException; public class PayTest { public static void main(String[] args) throws ClientProtocolException, IOException { for(int i=0;i<10;i++){ new Thread(new Runnable(){ @Override public void run() { //发送 GET 请求 String s1=PayTest.sendGet("http://10.125.25.187/dingtalk/hx/index.do","debug=y"); String s2=PayTest.sendGet("http://10.125.25.187/open/didi/pay/pay_notify.json", "orderId=5675551694383500500&normalDistance=11&totalPrice=11.33&status=700&callbackInfo=3831,221"); //String s2=PayTest.sendGet("http://10.125.25.187/dingtalk/dingtalk/taxi/special/createOrder.jsonp","__Order.create()__=&passengerGeotype=wgs84&serviceType=KC&carLevel=KC&cityId=5&appTime=1464100743424&fromCityName=%E6%9D%AD%E5%B7%9E%E5%B8%82&fromAddr=%E9%98%BF%E9%87%8C%E5%B7%B4%E5%B7%B4%E8%A5%BF%E6%BA%AA%E5%9B%AD%E5%8C%BA&fromAddrDetail=&fromLongitude=120.025459&fromLatitude=30.2791019&toCityName=%E6%9D%AD%E5%B7%9E%E5%B8%82&toAddr=%E5%98%89%E7%A6%BE%E8%8A%B1%E8%8B%918%E5%B9%A2&toLongitude=120.096661&toLatitude=30.272399&passengerMobile=15088688387&businessCategory=WORK&memo=uu&timeType=IN_TIME&_=1464100743427&callback=jsonp"); System.out.println(s1); } } ).start(); } } public static String convertStreamToString(InputStream is) { BufferedReader reader = new BufferedReader(new InputStreamReader(is)); StringBuilder sb = new StringBuilder(); String line = null; try { while ((line = reader.readLine()) != null) { sb.append(line + " "); } } catch (IOException e) { e.printStackTrace(); } finally { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } return sb.toString(); } /** * 向指定URL发送GET方法的请求 * * @param url 发送请求的URL * @param param 请求参数,请求参数应该是 name1=value1&name2=value2 的形式。 * @return URL 所代表远程资源的响应结果 */ public static String sendGet(String url, String param) { String result = ""; BufferedReader in = null; try { String urlNameString = url + "?" + param; URL realUrl = new URL(urlNameString); // 打开和URL之间的连接 URLConnection connection = realUrl.openConnection(); // 设置通用的请求属性 connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // 建立实际的连接 connection.connect(); // 获取所有响应头字段 Map<String, List<String>> map = connection.getHeaderFields(); // 遍历所有的响应头字段 for (String key : map.keySet()) { System.out.println(key + "--->" + map.get(key)); } // 定义 BufferedReader输入流来读取URL的响应 in = new BufferedReader(new InputStreamReader(connection.getInputStream())); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("发送GET请求出现异常!" + e); e.printStackTrace(); } // 使用finally块来关闭输入流 finally { try { if (in != null) { in.close(); } } catch (Exception e2) { e2.printStackTrace(); } } return result; } /** * 向指定 URL 发送POST方法的请求 * * @param url 发送请求的 URL * @param param 请求参数,请求参数应该是 name1=value1&name2=value2 的形式。 * @return 所代表远程资源的响应结果 */ public static String sendPost(String url, String param) { PrintWriter out = null; BufferedReader in = null; String result = ""; try { URL realUrl = new URL(url); // 打开和URL之间的连接 URLConnection conn = realUrl.openConnection(); // 设置通用的请求属性 conn.setRequestProperty("accept", "*/*"); conn.setRequestProperty("connection", "Keep-Alive"); conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // 发送POST请求必须设置如下两行 conn.setDoOutput(true); conn.setDoInput(true); // 获取URLConnection对象对应的输出流 out = new PrintWriter(conn.getOutputStream()); // 发送请求参数 out.print(param); // flush输出流的缓冲 out.flush(); // 定义BufferedReader输入流来读取URL的响应 in = new BufferedReader(new InputStreamReader(conn.getInputStream())); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { System.out.println("发送 POST 请求出现异常!" + e); e.printStackTrace(); } // 使用finally块来关闭输出流、输入流 finally { try { if (out != null) { out.close(); } if (in != null) { in.close(); } } catch (IOException ex) { ex.printStackTrace(); } } return result; } }