使用tcp通信，创建服务端

[java]代码库

package cn.itcast.sh.reg;

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

public class RegServer {

	public static void main(String[] args) throws IOException {
		/*
		 * 使用tcp通信，创建服务端
		 */
		ServerSocket ss = new ServerSocket(9090);
		
		//接受客户端
		Socket s = ss.accept();
		
		//获取输入流对象接受客户端提交过来的数据
		InputStream in =  s.getInputStream();
		
		byte[] buf = new byte[1024];
		
		int len = in.read(buf);
		
		System.out.println(new String(buf,0,len));
		
		//给客户端回送数据，告诉客户端注册成功
		OutputStream out = s.getOutputStream();
		out.write("<font color='red' size='7'>恭喜，注册成功</font>".getBytes());
		
		//关闭客户端
		s.close();
		//关闭服务端
		ss.close();
	}
}