echoclient.java

Java网络编程精解的全部源代码

package block;
import java.net.*;
import java.nio.channels.*;
import java.nio.*;
import java.io.*;
import java.nio.charset.*;

public class EchoClient{
  private SocketChannel socketChannel = null;

  public EchoClient()throws IOException{
    socketChannel = SocketChannel.open();
    InetAddress ia = InetAddress.getLocalHost();
    InetSocketAddress isa = new InetSocketAddress(ia,8000);
    socketChannel.connect(isa);
    System.out.println("与服务器的连接建立成功");
  }
  public static void main(String args[])throws IOException{
     new EchoClient().talk();
  }
  private PrintWriter getWriter(Socket socket)throws IOException{
     OutputStream socketOut = socket.getOutputStream();
     return new PrintWriter(socketOut,true);
  }
  private BufferedReader getReader(Socket socket)throws IOException{
     InputStream socketIn = socket.getInputStream();
     return new BufferedReader(new InputStreamReader(socketIn));
  }
  public void talk()throws IOException {
     try{
       BufferedReader br=getReader(socketChannel.socket());
       PrintWriter pw=getWriter(socketChannel.socket());
       BufferedReader localReader=new BufferedReader(new InputStreamReader(System.in));
       String msg=null;
       while((msg=localReader.readLine())!=null){
         pw.println(msg);
         System.out.println(br.readLine());

         if(msg.equals("bye"))
           break;
       }
     }catch(IOException e){
        e.printStackTrace();
     }finally{
        try{socketChannel.close();}catch(IOException e){e.printStackTrace();}
     }
  }
}


/****************************************************
 * 作者：孙卫琴                                     *
 * 来源：<<Java网络编程精解>>                       *
 * 技术支持网址：www.javathinker.org                *
 ***************************************************/