网络编程(了解客户端和服务器端原理)

package serverandclient;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.PrintWriter;

import java.net.ServerSocket;

import java.net.Socket;

public class Demo {

/**

* @param args

* @throws IOException

*/

public static void main(String[] args) throws IOException {

// TODO Auto-generated method stub

ServerSocket ss=new ServerSocket(10000);

Socket s=ss.accept();

System.out.println(s.getInetAddress().getHostAddress()+"....connected");

InputStream in=s.getInputStream();

byte [] buf=new byte[1024];

int len=in.read(buf);

String text=new String(buf,0,len);

System.out.println(text);

PrintWriter out=new PrintWriter(s.getOutputStream(),true);

// OutputStream out=s.getOutputStream();

out.println("<font color='red' size='7'>欢迎光临 </font>");

s.close();

ss.close();

}

}

发送的请求是：

GET / HTTP/1.1 请求行 请求方式是：get/post http协议的版本

请求消息头：

Accept: application/x-ms-application, image/jpeg, application/xaml+xml, image/gif, image/pjpeg, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */* 浏览器支持的文件

Referer: http://hao.360.cn/error.html?f=http%3A%2F%2F192%2E168%2E166%2E193%3A10000%2F&u=45074772
Accept-Language: zh-CN 支持语言

User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.3; .NET4.0C; .NET4.0E) 系统版本

Accept-Encoding: gzip, deflate 支持的压缩方式

Host: 192.168.166.193:10000

Connection: Keep-Alive