Sending a POST Request Using a Socket - Java Network

Java examples for Network:Socket

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Description

Sending a POST Request Using a Socket

Demo Code

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.InetAddress;
import java.net.Socket;
import java.net.URLEncoder;

public class Main {
  void m() {// w  ww.  j av  a  2s .c  o m
    try {
      String data = URLEncoder.encode("key1", "UTF-8") + "=" + URLEncoder.encode("value1", "UTF-8");
      data += "&" + URLEncoder.encode("key2", "UTF-8") + "=" + URLEncoder.encode("value2", "UTF-8");

      // Create a socket to the host
      String hostname = "hostname.com";
      int port = 80;
      InetAddress addr = InetAddress.getByName(hostname);
      Socket socket = new Socket(addr, port);

      // Send header
      String path = "/servlet/SomeServlet";
      BufferedWriter wr = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(), "UTF8"));
      wr.write("POST " + path + " HTTP/1.0\r\n");
      wr.write("Content-Length: " + data.length() + "\r\n");
      wr.write("Content-Type: application/x-www-form-urlencoded\r\n");
      wr.write("\r\n");

      // Send data
      wr.write(data);
      wr.flush();

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

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