Sending a POST Request Using a URL - Java Network

Java examples for Network:URL

  1. HOME
  2. Java
  3. Network
  4. URL

Description

Sending a POST Request Using a URL

Demo Code

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;

public class Main {

  public void main(String[] argv) {
    try {//from  w  w  w.j  ava2s.com
      // Construct data
      String data = URLEncoder.encode("key1", "UTF-8") + "="
          + URLEncoder.encode("value1", "UTF-8");
      data += "&" + URLEncoder.encode("key2", "UTF-8") + "="
          + URLEncoder.encode("value2", "UTF-8");

      // Send data
      URL url = new URL("http://hostname:80/cgi");
      URLConnection conn = url.openConnection();
      conn.setDoOutput(true);
      OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
      wr.write(data);
      wr.flush();

      // Get the response
      BufferedReader rd = new BufferedReader(new InputStreamReader(
          conn.getInputStream()));
      String line;
      while ((line = rd.readLine()) != null) {
        // Process line...
      }
      wr.close();
      rd.close();
    } catch (Exception e) {
    }
  }
}

Related Tutorials