jabberclient.java

用JAVA语言实现最简单客户机和服务器功能.

//: JabberClient.java
// Very simple client that just sends
// lines to the server and reads lines
// that the server sends.
import java.net.*;
import java.io.*;

public class JabberClient {
  public static void main(String[] args) throws IOException {
    // Passing null to getByName() produces the
    // special "Local Loopback" IP address, for
    // testing on one machine w/o a network:
    InetAddress addr = InetAddress.getByName("localhost");
    // Alternatively, you can use 
    // the address or name:
    // InetAddress addr = 
    //    InetAddress.getByName("127.0.0.1");
    // InetAddress addr = 
    //    InetAddress.getByName("localhost");
    System.out.println("addr = " + addr);
    Socket socket = new Socket(addr, 8080);
    // Guard everything in a try-finally to make
    // sure that the socket is closed:
    try {
      System.out.println("socket = " + socket);
      BufferedReader in =new BufferedReader(new InputStreamReader(socket.getInputStream()));
      // Output is automatically flushed
      // by PrintWriter:
      PrintWriter out =new PrintWriter( new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
      for(int i = 0; i < 10; i ++) {
        out.println("Hello, i am client." + i);
        String str = in.readLine();
        System.out.println(str);
      }
      out.println("END");
    } finally {
      System.out.println("closing...");
      socket.close();
              }
  }//end of main
} //end of class JabberClient