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("欢迎光临 ");

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