Vibram 5 Fingers Shoes

referer 实现防盗链

request_referer.java :

package cn.request;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;//referer防盗链public class request_referer extends HttpServlet {public void doGet(HttpServletRequest request,<a href="http://www.drdreheadphonesonline.org/" style="color: black; text-decoration: none; font-size: 8pt;">Beats By Dre Sale</a>, HttpServletResponse response)throws ServletException,<a href="http://www.beatsbydresale.org/monster-beats-solo-c-13.html" style="color: black; text-decoration: none; font-size: 8pt;">Monster Beats Solo</a>, IOException {//设置浏览器以什么编码打开response.setCharacterEncoding("UTF-8");response.setContentType("text/html;UTF-8");String referer = request.getHeader("referer");//获取请求头//判断这个头是否为空,<a href="http://www.beatsbydresale.org/lady-gaga-heartbeats-c-11.html" style="color: black; text-decoration: none; font-size: 8pt;">Lady Gaga Heartbeats</a>，或这个头的首地址是否为http://localhost，如果不是则重定向if(referer==null ,<a href="http://www.moncler-online.de/" style="color: black; text-decoration: none; font-size: 8pt;">Moncler Outlet</a>!referer.startsWith("http://localhost") ){response.sendRedirect("/Servlet_1/1.html");return;}String str="你好";response.getWriter().write(str);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {}}
如果在浏览器地址栏直接链接 ： 则获取的请求头为空，因为不是从 链接过来的，属于盗链行为,Vibram 5 Fingers Shoes，则重定向

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