client_application_service_layer.java

局域网内聊天程序

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

public class Client_application_service_layer extends Socket{
	private   Socket socket;
	private  BufferedReader input;
	private  PrintWriter output;
	
	public Client_application_service_layer(InetAddress acceptorHost,int acceptorPort)throws 
	SocketException,IOException{
		socket = new Socket(acceptorHost,acceptorPort);
		setStream();}
	
	private void setStream()throws IOException{
		input = new BufferedReader(new InputStreamReader(socket.getInputStream()));
		output = new PrintWriter(new OutputStreamWriter(socket.getOutputStream()));}
	
	public void sendMessage(String s)throws IOException{
		output.println(s);
		output.flush();}
	
    public String receiveMessage()throws IOException{
    	String message = input.readLine();
    	return message;}
    public void close(){
    	try{
    		socket.close();
    	}
    	catch(IOException err) {
           System.out.println(err.toString());
        }
    }
}