How to maintain ajax in page status
This time I will show you how to maintain ajax in the page state, and what are the things to note . The following is a practical case, let's take a look.
For traditional pages, the browser accesses the The traditional status is saved in the address bar, such as: www.abc.com/search?s=abc&id=23&page=3If this method is used, the browser will refresh the page. If you use anchors, the browser will not refresh. Specifically, when you click on the page to request data, the value after "#" in the address bar will be changed. We turn to the fourth pageFor example:abc.com/search#s=abc&id=23&page=4
This is not enough. If the user clicks " Forward" and "Back", the page content will not change accordingly. I used atimer to solve the problem based on what others have done online.
/** * URL Watcher(require jQuery) * 监测url的变化 * useage: * UrlWatcher.init(50); * UrlWatcher.AddListener(function(url,isFirstLoad){ * FrontEngine.generateFront(); * }); * */ var UrlWatcher = { "init": function (waittime) { this.UrlArray = [window.location.href];//set current url as default this.ListenerArray = []; this.ResetWaitTime(waittime); }, "AddListener": function (listener) {//add a process function this.ListenerArray.push(listener || function () {}); }, "DeleteListener": function () { this.ListenerArray = []; }, "ResetWaitTime": function (time) {//start timer if (this.IntervalHandle) {window.clearInterval(this.IntervalHandle); } this.WaitTime = time || 1000; this.IntervalHandle = window.setInterval(this.ListenerCall.setThis(this), this.WaitTime); }, "ListenerCall": function () { var self = this, url = window.location.href; if (self.UrlArray[self.UrlArray.length - 1] === url) {return; } window.clearInterval(this.IntervalHandle); $.each(this.ListenerArray, function (c, listener) { listener(url, self.UrlArray.length === 0); }); this.UrlArray.push(url); this.ResetWaitTime(this.WaitTime); } };
document.documentMode.
if( ('onhashchange' in window) && ((typeof document.documentMode==='undefined') || document.documentMode==8)) { // 浏览器支持onhashchange事件 indow.onhashchange = hashChangeFire; // TODO,对应新的hash执行的操作函数 } else { // 不支持则用定时器检测的办法 setInterval(function() { var ischanged = isHashChanged(); // TODO,检测hash值或其中某一段是否更改的函数 if(ischanged) { hashChangeFire(); // TODO,对应新的hash执行的操作函数 } }, 150); }
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