socket聊天功能

package chatSocket;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

public class ServerDemo {
		public static void main(String arg[]) throws IOException{
				ServerDemo server =new ServerDemo();
				server.start();
		}
		
		public void start() throws IOException{
			ServerSocket ss =new ServerSocket(8899);
			System.out.println("等待用户连接。。。");
			Socket s=ss.accept();
			System.out.println("客户连接成功:"+s.getInetAddress());
			InputStream in=s.getInputStream();
			OutputStream out =s.getOutputStream();
			new Reader(out).start();
			new Writer(in).start();
		}
}

package chatSocket;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;

public class ClientDemo {
	public static void main(String args[]) throws IOException{
		ClientDemo client=new ClientDemo();
		client.open();
	}
	public void open() throws IOException{
		Socket s =new Socket("localhost",8899);
		InputStream in=s.getInputStream();
		OutputStream out =s.getOutputStream();
		new Reader(out).start();
		new Writer(in).start();
	}
}

package chatSocket;

import java.io.IOException;
import java.io.OutputStream;
import java.util.Scanner;

public class Reader  extends Thread{
		OutputStream out;
		
	public Reader(OutputStream out){
		this.out=out;
		setDaemon(true);//添加守护进程，一旦前台线程结束，加载程序运行完毕
	}
	public void run(){
		Scanner s=new Scanner(System.in);
		try{
			while(true){
				String str=s.nextLine();
				out.write(str.getBytes());
				out.write('\n');
				out.flush();
			}
		}catch(IOException e){
			e.printStackTrace();
		}
		
	}
}

<pre name="code" class="java">package chatSocket;

import java.io.InputStream;

public class Writer extends Thread{
		InputStream in;
	
	public Writer(InputStream in){
		this.in=in;
	}
	public void run(){
		try{
			int b;
			while((b=in.read())!=-1){
				System.out.write(b);//输出字符流
			}
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}

然后先启动serverDemo再启动 clientDemo

在console中输入

手打辛苦，骚年看到这里，看你骨骼精奇，气吐非凡，下面有个‘顶’字，你就顶了吧！