sockettest_server.java

简单的客户端

import java.io.*;
import java.net.*;

public class SocketTest_Server
{
	public static void main(String[] args) throws UnknownHostException,IOException,ConnectException
	{
	ServerSocket aServerSocket=new ServerSocket(3434);
	Socket aServer=null;
	try
	{
	aServer=aServerSocket.accept();
	try
	{
	BufferedReader input=new BufferedReader(new InputStreamReader(System.in));
	BufferedReader in=new BufferedReader(new InputStreamReader(aServer.getInputStream()));
	PrintWriter out=new PrintWriter(new OutputStreamWriter(aServer.getOutputStream()));
	
	String serverstring=null;
	String clientstring=null;
	System.out.println("hello! enter the bye to exit.");
	System.out.print("Server:wait client");
	serverstring=input.readLine();
	boolean done=false;
	while(!done)
	{
	if(serverstring !=null)
	{
	out.println(serverstring);
	out.flush();
	}
	clientstring=in.readLine();
	if(clientstring !=null)
	System.out.println("client:"+clientstring);
	System.out.print("server:");
	serverstring=input.readLine();
	if(serverstring.equals("bye")) done=true;
	}
	}
	catch(Exception e)
	{
	System.out.println(e.getMessage());
	}
	finally
	{
	aServer.close();
	} 
	
	}
	catch(Exception e)
	{
	System.out.println(e.getMessage());
	}
	finally
	{
	aServerSocket.close();
	}
	
	}
}