Here you can find the source of sendPost(String url, String param)
public static String sendPost(String url, String param)
//package com.java2s; //License from project: Open Source License import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.URL; import java.net.URLConnection; public class Main { public static String sendPost(String url, String param) { PrintWriter out = null;/* w w w. ja v a2 s . c o m*/ BufferedReader in = null; String result = ""; try { URL realUrl = new URL(url); URLConnection conn = realUrl.openConnection(); conn.setRequestProperty("accept", "*/*"); conn.setRequestProperty("connection", "Keep-Alive"); conn.setRequestProperty("user-agent", "Mozilla/4.0 {compatible; MSIE 6.0; Windows NT 5.1;SV1"); conn.setDoOutput(true); conn.setDoInput(true); out = new PrintWriter(conn.getOutputStream()); out.print(param); out.flush(); in = new BufferedReader(new InputStreamReader(conn.getInputStream())); String line; while ((line = in.readLine()) != null) { result += line; } } catch (Exception e) { e.printStackTrace(); } finally { try { if (out != null) { out.close(); } if (in != null) { in.close(); } } catch (Exception ex) { ex.printStackTrace(); } } return result; } }