angent.java

《Java TCP/IP应用开发详解》的部分源程序,开发环境为ECLIPSE3.1

package Section17;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket; 

public class Angent {

	
	public Socket socket=null;
	public String userName=null;
	public PrintWriter out=null;
	public BufferedReader in=null;
	
	public Angent(Socket theSocket) {
		socket=theSocket;
		try{
			in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
            out=new PrintWriter(socket.getOutputStream(),true);
		}catch(IOException e)
		{e.printStackTrace();
		
		}
	}


    public void close()
    {
    	try{
    		out.close();
        	in.close();
        	socket.close();
        	
    	}catch(IOException e){}
    }


    public boolean exist()
    {
    	if(socket!=null&&in!=null&&out!=null&&userName!=null)return true;
    	else return false;
    }
}