给个TCP/IP的通讯(client)的例子

Question

class Client extends Thread{
    private Socket socket;
    private InputStream socketInputStream;
    private OutputStream socketOutputStream;    public Client(String ip, int port) throws Exception{
        socket = new Socket(ip,port);
        this.socket.setSoTimeout(30000); //数据超时为30秒
        this.socketOutputStream = socket.getOutputStream();
        this.socketInputStream = socket.getInputStream();
        start();
    }    public void run() throws Throwable {
        int readSize = 0;
        while (true) {
            byte[] in = new byte[1024];
            try{
                readSize = this.socketInputStream.read(in);
                // 处理你的数据 in                send(....);
            } catch(Exception e){
                try{
                    socketInputStream.close();
                    socketOutputStream.close();
                    socket.close();
                }catch(Exception ex){
                }
            }
        }
    }    private void send(byte[] ob){
        socketOutputStream.write(ob, 0, ob.length);
        socketOutputStream.flush();
    }
}

Answer 1

import java.net.*;
import java.io.*;public class myClient2
{
   public static void main( String[ ] args )
   {
      try
      {
         Socket s = new Socket( "10.0.0.143", 5656 );
         PrintStream out = new PrintStream( s.getOutputStream( ) );
         BufferedReader in = new BufferedReader( new InputStreamReader( s.getInputStream( ) ) );
         BufferedReader std = new BufferedReader( new InputStreamReader( System.in ) );
         String x = in.readLine( );
         String x1 = std.readLine( );
         if( !x.equals( "password") )
         {
            System.out.println( "Server Wrong" );
            System.exit( 0 );
         }
         else
         {
            out.println( x1 );
         }
         x = in.readLine( );
         if( x.equals( "wrong" ) )
         {
            System.out.println( "wrong password" );
         }
         else
         {
            System.out.println( x );
         }
         out.close( );
         s.close( );
         in.close( );
      }
      catch( IOException e )
      {
      }
   }
}
import java.net.*;
import java.io.*;
import java.util.*;public class myServer2
{
   public static void main( String[ ] args )
   {
      try
      {
         ServerSocket ss = new ServerSocket( 5656 );
         while( true )
         {
            Socket s = ss.accept( );
            PrintStream out = new PrintStream( s.getOutputStream( ) );
            BufferedReader in = new BufferedReader( new InputStreamReader( s.getInputStream( ) ) );         
            out.println( "password" );
            String pass = in.readLine( );
            System.out.println( pass );
            if( !pass.equals( "xiaoqiang" ) )
            {
               out.println( "wrong" );
            }
            else
            {
               Date d = new Date( );
               String t = d.toString( );
               out.println( t );
            }
            out.close( );
            s.close( );
            in.close ( );
         }
      }
      catch( IOException e )
      {
      }
   }   
}不知是否符合楼主的要求

Answer 2

import java.net.*;
import java.io.*;public class TestSocketClient{
public  static  void  main(String[]  args)
{  
String  serviceHost  =  "10.34.52.51";  
int  servicePort  =  7777;  

java.net.Socket  socket=null;
BufferedReader reader=null;
PrintWriter out=null;
try
{
socket  =  new  java.net.Socket(serviceHost,servicePort);  
System.out.println("client  socket:  "  +  socket); 

reader = new BufferedReader (new InputStreamReader(System.in)); 

out=new PrintWriter(socket.getOutputStream()); 

String str="";
do{
str=reader.readLine();
System.out.println("out:"+str);
out.println(str);
}while(!str.equals("."));

}
catch  (IOException  ex)
{  
ex.printStackTrace(); 
}
catch(Exception ex)
{
ex.printStackTrace();
}
finally
{
try
{
reader.close();
out.close();
socket.close();
}
catch  (IOException  ex)
{  
ex.printStackTrace();  
} 
}
}
}