Ajax Session Timeout 超时处理

礼物 — Thu, 05 Dec 2013 08:11:00 GMT

/**
* Author : Larry Li
* Date : 2013-12-5
* Email : larry.li@aicent.com
*/
var Session = function() {
   var defaults = {
           title        : 'Session Notification',
           message      : 'Your session is about to expire.',
           keepAliveUrl : '/admin/session/keep-alive',
           redirUrl     : '/account/timed-out',
           logoutUrl    : '/account/logout',
           warnAfter    : 900000, // 15 minutes
           redirAfter   : 1200000 // 20 minutes
   };

   var o = defaults, dialogTimer, redirTimer;

   var controlRedirTimer = function(action) {
       switch(action) {
           case 'start':
               // Dialog has been shown, if no action taken during redir period, redirect
               redirTimer = setTimeout(function(){
                   window.location = o.redirUrl;
               }, o.redirAfter - o.warnAfter);
               break;

           case 'stop':
               clearTimeout(redirTimer);
               break;
           case 'restart':
               clearTimeout(redirTimer);
               redirTimer = setTimeout(function(){
                   window.location = o.redirUrl;
               }, o.redirAfter - o.warnAfter);
               break;
       }
   };

   var controlDialogTimer = function(action) {
       switch(action) {
           case 'start':
               dialogTimer = setTimeout(function(){
                   $('#sessionTimeout-dialog').modal('show');
                   controlRedirTimer('start');
               }, o.warnAfter);
               break;
           case 'stop':
               clearTimeout(dialogTimer);
               break;
           case 'restart':
               clearTimeout(dialogTimer);
               dialogTimer = setTimeout(function(){
                   $('#sessionTimeout-dialog').modal('show');
                   controlRedirTimer('restart');
               }, o.warnAfter);
               break;
       }
   };

   var doKeepAlive = function() {
       $.ajax({
           type: 'POST',
           url: o.keepAliveUrl,
           success: function() {
               // Stop redirect timer and restart warning timer
               controlRedirTimer('restart');
               controlDialogTimer('restart');
           }
       });
   };

   return {
       sessionTimeout: function(options) {
           if ( options ) { o = $.extend( defaults, options ); }

           var warning_dialog = '';

           $('body').append(warning_dialog);

           $('#sessionTimeout-dialog-logout').on('click', function () { window.location = o.logoutUrl; });

           $('#_close,#sessionTimeout-dialog-keepalive').click(function() {
               doKeepAlive();
           });
           // Begin warning period
           controlDialogTimer('start');
       },

       sessionTimeoutKeepAlive: function() {
           controlRedirTimer('restart');
           controlDialogTimer('restart');
       }
   };
}();

$(function() {
   Session.sessionTimeout({
       title: 'Session Timeout Notification',
       message: 'Your session is about to expire.',
       keepAliveUrl: contextPath + '/admin/session/keep-alive',
       redirUrl: contextPath + '/account/login',
       logoutUrl: contextPath + '/account/logout',
       warnAfter: 1500000,
       redirAfter: 1780000
   });

   $(document).ajaxComplete(function() {
       Session.sessionTimeoutKeepAlive();
   });
});

礼物 2013-12-05 16:11 发表评论

GWT基础框架使用

礼物 — Tue, 21 Dec 2010 16:36:00 GMT

1. 我们通过 xxx.gwt.xml中的：

                class='com.huawei.iread.manager.frame.client.ModuleEntryPoint' />中进入我们预置的类：ModuleEntryPoint'中的 public void onModuleLoad()方法


   2. 主要通过分配器来进行页面的调整

        2.1 dispatcher中添加控制器controneller.
        2.2 controneller中注册各种事件的处理方式
        2.3 跳转到制定的页面只需要调用dispatch(注册的事件)

详细代码如下所示:
onModuleLoad方法：
       Dispatcher.get().addController(new FrameController());                //分配器添加控制器
      Dispatcher.get().addController(new WorkController());
      Dispatcher.get().dispatch(new EventType(FrameEvents.INIT));           //跳转到init事件的处理

3.FrameController控制器中注册事件:

    //控制持有一个视图对象 view
     view = new FrameView(this);

     // 给控制器添加注册的事件
     registerEventTypes(new EventType(FrameEvents.INIT));


    控制器拥有一个事件的集合（LIST），及需要覆盖 public void handleEvent(AppEvent event)方法：
   该方法即是处理注册事件的方法.一般在其中处理页面跳转
     @Override
    public void handleEvent(AppEvent event)
    {
        GWT.log("FrameController event:"+event.getType().getEventCode());

        //该方法就是初始化控制器所持有的view的初始化其中再调用handleEvent方法
        forwardToView(view, event);
    }

4.view 对象

     4.1持有一个viewPoint对象，该对象继承之LayoutContainer，即属于容器类对象
    @Override
    protected void handleEvent(AppEvent event)
    {
            GWT.log("frame view code:"+event.getType().getEventCode());
        if (event.getType().getEventCode() == FrameEvents.INIT)
        {
            viewPort = new Viewport();
            viewPort.setLayout(new BorderLayout());

           //构建画面
            Registry.register("viewport", viewPort);
            Registry.register("north", north);
            Registry.register("south", south);
            Registry.register("west", west);
            Registry.register("center", center);
            viewPort.repaint();

           //添加容器
            RootPanel.get().add(viewPort);
        }
    }

    4.2持有一个控制器对象crontroller


5 Registry对象

   维护一个map,将一些公用的容器添加到application级别的map中

礼物 2010-12-22 00:36 发表评论

BlogJava-Terry.Li-彬-文章分类-Web前端

Ajax Session Timeout 超时 处理

'+ o.title +'

GWT基础框架使用

Ajax Session Timeout 超时处理