单网页应用如何实现后退和前进操作
-
本实例实现锚点来支持浏览器的前进和后退
代码:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> </head> <body> <div id="menu" style="position: fixed;"> <a href="#index">首页</a> <a href="#task">任务</a> </div> <div id="index" style=" 100%;height: 100%;background-color: aqua;text-align: center;vertical-align: middle;font-size: 50px;">我是首页</div> <div id="task" style=" 100%;height: 100%;background-color: aquamarine;text-align: center;vertical-align: middle;font-size: 50px;">我是任务</div> </body> <style type="text/css"> *{ margin: 0; padding: 0; } html,body{ height: 100%; } </style> </html>
-
本实例实现的是点击连接之后,异步请求后台,拿到数据显示到页面,并且能够实现前进和后台的操作。
先上代码:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title></title> <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script> </head> <body style="height: 100%;"> <div id="main" style=" position: absolute; 100%;height: 100%;background-color: aliceblue;box-sizing: border-box;"> <div style="height: 20%;"> <a href="#index" onclick="show(this)" data-type="index">首页</a> <a href="#task" onclick="show(this)" data-type="task">任务</a> </div> <div id="content" style="background-color: aquamarine;position: absolute;top: 20%;right: 0;bottom: 0;left: 0;"> <!-- <div id="index" style="background-color: aqua; 100%;height: 100%;">我是首页</div> <div id="task" style="background-color: aqua; 100%;height: 100%;display: none;">我是内容</div> --> </div> </div> </body> <style> *{ margin: 0; padding: 0; } html,body{ height: 100%; } </style> <script> function show(obj){ var type = $(obj).data("type"); $.getJSON("content.json",function(result){ console.log(type); console.log(result); $("#content").text(result[type]); }); } /*核心方法:浏览器前进或后退*/ window.onhashchange = hashchange; function hashchange(){ if(location.hash=="#index"){ $.getJSON("content.json",function(result){ $("#content").text(result["index"]); }); } if(location.hash=="#task"){ $.getJSON("content.json",function(result){ $("#content").text(result["task"]); }); } if(!location.hash){ $("#content").text(""); } } </script> </html>
{ "index":"我是首页", "task":"我是内容" }