防止用户注销后后退到原来页面的javascript与jsp解决方案

本文提供了两种网页优化方案:一是使用JavaScript阻止链接被缓存并实现平滑跳转;二是通过JSP代码设置响应头来避免浏览器缓存页面,确保用户每次访问都能获取到最新的网页内容。

1,JavaScript解决方案

 <script type="text/javascript" src="jquery-1.4.2.min.js"></script>

<script type="text/javascript">
$(document).ready(function(){
 $("#test").click(
 function (e){
     var ev = window.event;//获取event对象 
  location.replace(this.href);
  ev.returnValue=false;
  
 });
 
 
});

</script>

<a id="test" href="b.htm" >test1</a>

 

2,Jsp代码解决方案

 

<%
 response.setHeader("Pragma","No-cache");
 response.setHeader("Cache-Control","No-cache");
 response.setDateHeader("Expires", -1);
 response.setHeader("Cache-Control", "No-store");
%>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="javax.servlet.*,java.text.*" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta name="renderer" content="webkit"> <title>收入综合分析平台</title> <link rel="stylesheet" href="${pageContext.request.contextPath}/resources/bootstrap-3.3.7-dist/css/bootstrap.min.css"> <%-- 右击菜单样式 --%> <link href="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/css/jquery.contextMenu.min.css" rel="stylesheet"/> <%-- <link href="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/css/animate.min.css" rel="stylesheet"/>--%> <link href="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/css/style.min.css" rel="stylesheet"/> <link href="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/css/skins.css" rel="stylesheet"/> <link href="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/css/ry-ui.css?v=4.6.1" rel="stylesheet"/> <%-- 图标库 --%> <link href="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/css/font-awesome.min.css" rel="stylesheet"/> <script src="${pageContext.request.contextPath}/resources/js/jquery-1.11.3.min.js?v=<%=System.currentTimeMillis()%>"></script> <script src="${pageContext.request.contextPath}/resources/bootstrap-3.3.7-dist/js/bootstrap.min.js?v=<%=System.currentTimeMillis()%>"></script> <script src="${pageContext.request.contextPath}/resources/global/global.js?v=<%=System.currentTimeMillis()%>"></script> <script type="text/javascript"> $(function(){ $.ajax({ type: 'get', url: "dic/getUrlByUser", async: false, dataType: 'json', success: function (data) {//返回list数据并循环获取 var ht = ""; var arr = ['desktop','calculator','leanpub','map','send','bar-chart','line-chart','train','american-sign-language-interpreting','gears','user-circle-o','paper-plane','firefox']; for(var i=0;i<data.length;i++){ //循环一级菜单 ht = ht +'<li>'+ '<a href="#">' + '<i class="fa fa-'+arr[i]+'"></i> ' + '<span class="nav-label">'+data[i].mkName+'</span>' + '<span class="fa arrow"></span>' + '</a>'+ '<ul class="nav nav-second-level collapse">'; var obj = data[i].obj; if(obj[0].cdlb == ""){//该模块不存在二级菜单 for(var j=0;j<obj.length;j++){ ht = ht + '<li>\n' + '<a class="menuItem" href="'+obj[j].cdUrl+'">'+ obj[j].cdName +'</a>' + '</li>'; } ht = ht + '</ul></li>'; }else{ var cdlbArr = new Array(); for(var j=0;j<obj.length;j++){ cdlbArr.push(obj[j].cdlb); } cdlbArr = uniqueArr(cdlbArr); for(var k=0;k<cdlbArr.length;k++){ ht = ht + '<li>\n' + '<a href="#"><i class="fa fa-pied-piper"></i> '+cdlbArr[k]+'<span class="fa arrow"></span></a>\n' + '<ul class="nav nav-third-level collapse">'; for(var m=0;m<obj.length;m++){ if(cdlbArr[k] == obj[m].cdlb){ ht = ht + '<li>\n' + '<a class="menuItem" href="'+obj[m].cdUrl+'">'+ obj[m].cdName +'</a>' + '</li>'; } } ht = ht + '</ul></li>'; } } ht = ht + '</ul></li>'; } $("#side-menu").append(ht); } }); }) /* * 用于解决浏览器关闭后Cookie未失效,攻击者可在用户关闭浏览器后,通过同一cookie直接访问网站(无需重新登录),窃取用户会话; * 由于ajax是异步 使用时会造成发送不过去的现象 需要使用同步请求 * 另外 如果只是使用 window.addEventListener('beforeunload'来判断 会出现 刷野也会消除session 所以只能通过一下方法来实现 * */ window.addEventListener('beforeunload', function(e) { // 获取导航类型(替代废弃的performance.navigation.type) console.log(JSON.stringify(performance.getEntriesByType("navigation")[0].toJSON().type)) const navType = performance.getEntriesByType("navigation")[0].toJSON().type; sendLogoutRequest(navType) // 排除刷新行为,仅在离开/关闭时触发逻辑 if (navType !== 'reload') { console.log('离开页面,执行逻辑') //sendLogoutRequest() return '111'; } }); /*class PageLeaveHandler { constructor() { this.isRefreshing = false; this.pendingUnload = false; this.pendingUnloadnum = 0;//默认值 this.init(); } init() { // 监听刷新快捷键 window.addEventListener('keydown', (e) => { if (e.key === 'F5' || (e.ctrlKey && e.key === 'F5')) { this.isRefreshing = true; } }); // 监听beforeunload事件 window.addEventListener('beforeunload', this.handleBeforeUnload.bind(this)); } handleBeforeUnload(e) { if (this.isRefreshing) { this.pendingUnload = false; return; } //sendLogoutRequest(this.isRefreshing) this.pendingUnload = true; return 1; } } new PageLeaveHandler();*/ function sendLogoutRequest(navType) { const logoutUrl = '${pageContext.request.contextPath}/sys/loginoutall?navType='+navType; if (navigator.sendBeacon) { navigator.sendBeacon(logoutUrl, 'loginoutall'); } else { const xhr = new XMLHttpRequest(); xhr.open('GET', logoutUrl, false); // 同步请求 xhr.timeout = 2000; try { xhr.send(); } catch (e) { // 忽略错误 } } } /*window.addEventListener('beforeunload', function(e) { // 取消事件的默认行为(部分浏览器需要) e.preventDefault(); if(!e.isTrusted){ // 2. 拼接正确的上下文路径(关键:避免404) const logoutUrl = '${pageContext.request.contextPath}/sys/loginoutall'; // 3. 用sendBeacon发送请求,浏览器会优先保证发送完成 if (navigator.sendBeacon) { navigator.sendBeacon(logoutUrl, 'loginoutall'); } else { const xhr = new XMLHttpRequest(); xhr.open('GET', logoutUrl, false); // 同步请求 xhr.timeout = 2000; try { xhr.send(); } catch (e) { } } } });*/ </script> </head> <body class="fixed-sidebar full-height-layout gray-bg skin-blue theme-light" style="overflow: hidden"> <div id="wrapper"> <!--左侧导航开始--> <nav class="navbar-default navbar-static-side" role="navigation"> <div class="nav-close"> <i class="fa fa-times-circle"></i> </div> <a href=""> <li class="logo hidden-xs"> <span class="logo-lg">欢迎${user.username}</span> </li> </a> <div class="sidebar-collapse"> <ul class="nav" id="side-menu"> <li> <div class="user-panel"> <%-- 该位置换谁个人中心地址 --%> <a class="menuItem noactive" title="个人中心" href=""> <div class="hide" text="个人中心"></div> <div class="pull-left image"> <%--<img src="resources/ruoyi/favicon.ico" class="img-circle" alt="User Image">--%> <img src="resources/image/eee.png" class="img-circle" alt="User Image"> </div> </a> <div class="pull-left info"> <%-- 该位置可以加上el表达式 然后读取成登录名即可 --%> <p></p> <a href="#"><i class="fa fa-circle text-success"></i> 在线</a> <%-- 该位置发起退出请求 换上即可 --%> <a href="sys/loginout" style="padding-left:5px;"><i class="fa fa-sign-out text-danger"></i> 注销</a> </div> </div> </li> <li> <a class="menuItem" href="web/main/sy.jsp"><i class="fa fa-home"></i> <span class="nav-label">首页</span></a> </li> </ul> </div> </nav> <!--左侧导航结束--> <!--右侧部分开始--> <div id="page-wrapper" class="gray-bg dashbard-1"> <div class="row border-bottom"> <nav class="navbar navbar-static-top" role="navigation" style="margin-bottom: 0"> <div class="navbar-header"> <a class="navbar-minimalize minimalize-styl-2" style="color:#FFF;" href="#" title="收起菜单"> <i class="fa fa-bars"></i> </a> </div> <ul class="nav navbar-top-links navbar-right welcome-message"> <%--<li><a data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="开发文档" href="http://doc.ruoyi.vip/ruoyi" target="_blank"><i class="fa fa-question-circle"></i> 文档</a></li> <li><a data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="锁定屏幕" href="#" id="lockScreen"><i class="fa fa-lock"></i> 锁屏</a></li>--%> <li><a data-toggle="tooltip" data-trigger="hover" data-placement="bottom" title="全屏显示" href="#" id="fullScreen"><i class="fa fa-arrows-alt"></i> 全屏</a></li> <%--<li class="dropdown user-menu"> <a href="javascript:void(0)" class="dropdown-toggle" data-hover="dropdown"> <img src="resources/image/eee.png" class="user-image"> <%– 该位置用el表达式读取登录名 –%> <span class="hidden-xs">海来怡天</span> </a> <ul class="dropdown-menu"> <li class="mt5"> <%– 该位置是个人中心超链接 –%> <a href="" class="menuItem noactive"> <i class="fa fa-user"></i> 个人中心</a> </li> <li> <a onclick="resetPwd()"> <i class="fa fa-key"></i> 修改密码</a> </li> <li> <a onclick="switchSkin()"> <%–<a id="btn" >–%> <i class="fa fa-dashboard"></i> 切换主题 </a> </li> <li class="divider"></li> <li> <%– 该位置是推出登录请求 –%> <a href=""> <i class="fa fa-sign-out"></i> 退出登录</a> </li> </ul> </li>--%> </ul> </nav> </div> <div class="row content-tabs"> <button class="roll-nav roll-left tabLeft"> <i class="fa fa-backward"></i> </button> <nav class="page-tabs menuTabs"> <div class="page-tabs-content"> <a href="javascript:" class="active menuTab" data-id="web/main/sy.jsp">首页</a> </div> </nav> <button class="roll-nav roll-right tabRight"> <i class="fa fa-forward"></i> </button> <a href="javascript:void(0);" class="roll-nav roll-right tabReload"><i class="fa fa-refresh"></i> 刷新</a> </div> <a id="ax_close_max" class="ax_close_max" href="#" title="关闭全屏"> <i class="fa fa-times-circle-o"></i> </a> <div class="row mainContent" id="content-main" > <iframe class="RuoYi_iframe" name="iframe0" width="100%" height="100%" data-id="web/main/sy.jsp" src="web/main/sy.jsp" frameborder="0" seamless></iframe> </div> </div> <!--右侧部分结束--> </div> <!-- 全局js --> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/js/plugins/metisMenu/jquery.metisMenu.js?v=<%=System.currentTimeMillis()%>"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/js/plugins/slimscroll/jquery.slimscroll.min.js?v=<%=System.currentTimeMillis()%>"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/js/jquery.contextMenu.min.js?v=<%=System.currentTimeMillis()%>"></script> <%--<script src="${pageContext.request.contextPath}/resources/ruoyi/ajax/libs/layui/layui.js?v=<%=System.currentTimeMillis()%>"></script>--%> <%-- 该方法用于将页面加载到本页面 --%> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/ajax/libs/blockUI/jquery.blockUI.js?v=<%=System.currentTimeMillis()%>"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/ajax/libs/layer/layer.min.js?v=<%=System.currentTimeMillis()%>"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/js/ry-ui.js?v=<%=System.currentTimeMillis()%>"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/js/common.js?v=<%=System.currentTimeMillis()%>"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/ruoyi/index.js?v=<%=System.currentTimeMillis()%>"></script> <script type="text/javascript" src="${pageContext.request.contextPath}/resources/ruoyi/ajax/libs/fullscreen/jquery.fullscreen.js?v=<%=System.currentTimeMillis()%>"></script> <script> /*window.history.forward(1); var ctx = "/zhfx"; // 皮肤缓存 var skin = storage.get("skin");*/ // history(表示去掉地址的#)否则地址以"#"形式展示 var mode = "history"; // 历史访问路径缓存 var historyPath = storage.get("historyPath"); // 是否页签菜单联动 var isLinkage = true; /* * 这个js如果删了 按下F12编辑时 页面会不起作用 * */ $(function() { var lockPath = storage.get('lockPath'); if($.common.equals("history", mode) && window.performance.navigation.type == 1) { var url = storage.get('publicPath'); if ($.common.isNotEmpty(url)) { applyPath(url); } } else if($.common.isNotEmpty(lockPath)) { applyPath(lockPath); storage.remove('lockPath'); } else { var hash = location.hash; if ($.common.isNotEmpty(hash)) { var url = hash.substring(1, hash.length); applyPath(url); } else { if($.common.equals("history", mode)) { storage.set('publicPath', ""); } } } $("[data-toggle='tooltip']").tooltip(); }); </script> </body> </html> 为什么 一个刷新 一个跳转 这俩 点刷新是reload 再点跳转还是reload 必须第二下才是navigate 但是这样点了navigate之后 再点刷新还是navigate 必须再点刷新才是reload 这可不能这样
最新发布
11-12
评论
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符
 
红包 添加红包
表情包 插入表情
 条评论被折叠 查看
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值