Java tutorial
//package com.java2s; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.List; import java.util.Map; public class Main { public static String openPostConnection(String urlString, Map<String, String> map) { HttpClient client = new DefaultHttpClient(); HttpPost post = new HttpPost(urlString); List<NameValuePair> nameValuePairs = new ArrayList<>(); for (String key : map.keySet()) { nameValuePairs.add(new BasicNameValuePair(key, map.get(key))); } try { post.setEntity(new UrlEncodedFormEntity(nameValuePairs)); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } try { HttpResponse httpResponse = client.execute(post); BufferedReader br = new BufferedReader(new InputStreamReader(httpResponse.getEntity().getContent())); StringBuilder json = new StringBuilder(""); String line = null; while ((line = br.readLine()) != null) { json.append(line); } return json.toString(); } catch (IOException e) { e.printStackTrace(); } return null; } }