server_application_service_layer.java

局域网内聊天程序

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
//import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketException;
//import java.net.*; 

public class Server_application_service_layer extends Socket{ 
	private  Socket socket;
	private  BufferedReader input;
	private  PrintWriter output;
	
	public Server_application_service_layer(Socket socket)throws 
	SocketException,IOException{
	    this.socket = socket;
		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{
		//chat.chat.textArea2.append(output.println());
		output.println(s);
		output.flush();
		}
	
    public String receiveMessage()throws IOException{
    	String message = input.readLine();
    	return message;}
    
    public boolean isClosed(){
    	return socket.isClosed();
    }
}