echoclient.java

线程池的开发,创建一个池来提高资源利用率

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

public class EchoClient
{
	private String host="localhost";
	private int port=8000;
	private Socket socket;
	
	public EchoClient() throws IOException
	{
		socket=new Socket(host,port);
	}
	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));
	}
	
	private void talk() throws IOException
	{
		try{
			BufferedReader br=getReader(socket);
			PrintWriter pw=getWriter(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{socket.close();}catch(IOException e){e.printStackTrace();}
		}
	}
}