让jsp页面不被浏览器缓存

效果:使得点击浏览器后退,浏览器从缓存中找不到页面, 从而会重新请求服务器。
过滤器:
package filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class NoCacheFilter implements Filter {


    public void doFilter(ServletRequest req, ServletResponse resp,
            FilterChain chain) throws IOException, ServletException {
        //把ServletRequest强转成HttpServletRequest
        HttpServletRequest request = (HttpServletRequest) req;
        //把ServletResponse强转成HttpServletResponse
        HttpServletResponse response = (HttpServletResponse) resp;
        //禁止浏览器缓存所有动态页面
        response.setDateHeader("Expires", -1);
        response.setHeader("Cache-Control", "no-store");
        response.setHeader("Pragma", "no-cache");
        chain.doFilter(request, response);
    }

    public void init(FilterConfig filterConfig) throws ServletException {

    }
    
    public void destroy() {
        
    }
}

jsp页面:
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta HTTP-EQUIV="pragma" CONTENT="no-cache">
<meta HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate">
<meta HTTP-EQUIV="expires" CONTENT="0">
<title>Insert title here</title>
</head>
<body>
<% System.out.println("不缓存页面"); %>
不缓存页面
</body>
</html>

web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
	<filter>
      <filter-name>NoCacheFilter</filter-name>
      <filter-class>filter.NoCacheFilter</filter-class>
 	</filter>
  
   	<filter-mapping>
      <filter-name>NoCacheFilter</filter-name>
      <url-pattern>/*</url-pattern>
   	</filter-mapping>
  </web-app>


参考博文:
http://www.cnblogs.com/xdp-gacl/p/3948422.html
http://blog.sina.com.cn/s/blog_5f458b8b0100cr69.html

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