Java URL Post post(String urlString, HashMap values)

Description

post

License

Open Source License

Declaration

public static String post(String urlString, HashMap<String, String> values) throws IOException 

Method Source Code

//package com.java2s;
/**// w w  w .  ja v  a 2 s  . c o  m
 * LICENSING
 * 
 * This software is copyright by sunkid <sunkid@iminurnetz.com> and is
 * distributed under a dual license:
 * 
 * Non-Commercial Use:
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation, either version 3 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * Commercial Use:
 *    Please contact sunkid@iminurnetz.com
 */

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.HashMap;

public class Main {
    public static String post(String urlString, HashMap<String, String> values) throws IOException {
        StringBuffer retval = new StringBuffer();
        URL url = new URL(urlString);

        StringBuffer data = new StringBuffer();
        for (String key : values.keySet()) {
            data.append(URLEncoder.encode(key, "UTF-8") + "=");
            data.append(URLEncoder.encode(values.get(key), "UTF-8") + "&");
        }

        URLConnection conn = url.openConnection();
        conn.setDoOutput(true);

        OutputStreamWriter osw = new OutputStreamWriter(conn.getOutputStream());
        osw.write(data.substring(0, data.length() - 1));
        osw.flush();

        BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String line;
        while ((line = rd.readLine()) != null) {
            retval.append(line);
        }
        osw.close();
        rd.close();

        return retval.toString();
    }
}

Related

1. post(JSONObject json, String url)
2. post(String url, Map parameters)
3. post(String url, String content)
4. post(String url, String content)
5. post(String urlstr, String[] params)
6. postData(String urlStr, String data)
7. postData(URL base, String urlAddress, Map data)
8. postForString(URL url, String data)
9. postRequest(URLConnection conn, Map nameValuePairs)