Web应用中实现页面加载提示

来源:互联网 发布:淘宝361官方旗舰店 编辑:程序博客网 时间:2024/06/13 22:41
  1. processbar.jsp  
  2.   
  3. <%@ page language="java" contentType="text/html; charset=UTF-8"  
  4.     pageEncoding="UTF-8"%>  
  5. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
  6. <html>  
  7.     <head>  
  8.         <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  
  9.         <title>process bar</title>  
  10.         <script type="text/javascript" language="JavaScript">  
  11.               
  12.             //: 判断网页是否加载完成  
  13.             document.onreadystatechange = function () {   
  14.                 if(document.readyState=="complete") {         
  15.                     document.getElementById('divprogressbar').style.display='none';   
  16.                 }  
  17.             }   
  18.               
  19.         </script>  
  20.     </head>  
  21.     <body>  
  22.         <div id="divprogressbar"  
  23.             style="position: absolute; width: 100%; height: 100%; left: 0px; top: 0px; background-color: #ffffff; filter: alpha (     opacity =     100 ); z-index: 50000">  
  24.             <div style="text-align: center; padding-top: 200px">  
  25.                 <table align="center" border="1" width="37%" cellspacing="0"  
  26.                     cellpadding="4" style="border-collapse: collapse" bgcolor="#FFFFEC"  
  27.                     height="87">  
  28.                     <tr>  
  29.                         <td bgcolor="#3399FF" style="font-size: 12px;" height="24"  
  30.                             align="center">  
  31.                             友情提示, 数据正在载入中...  
  32.                         </td>  
  33.                     </tr>  
  34.                     <tr>  
  35.                         <td style="font-size: 12px; line-height: 200%" align="center">  
  36.                             网页正在载入数据中.请耐心等待...  
  37.                             <marquee style="border: 1px solid #000000" direction="right"  
  38.                                 width="300" scrollamount="5" scrolldelay="10" bgcolor="#ECF2FF">  
  39.                                 <table cellspacing="1" cellpadding="0">  
  40.                                     <tr height=8>  
  41.                                         <td bgcolor=#3399FF width=8></td>  
  42.                                         <td></td>  
  43.                                         <td bgcolor=#3399FF width=8></td>  
  44.                                         <td></td>  
  45.                                         <td bgcolor=#3399FF width=8></td>  
  46.                                         <td></td>  
  47.                                         <td bgcolor=#3399FF width=8></td>  
  48.                                         <td></td>  
  49.                                     </tr>  
  50.                                 </table>  
  51.                             </marquee>  
  52.                         </td>  
  53.                     </tr>  
  54.                 </table>  
  55.             </div>  
  56.         </div>  
  57.     </body>  
  58. </html>  
  59.   
  60. 然后在另外需要使用的页面中加入如下代码即可:  
  61.   
  62. <jsp:include page="processbar.jsp"></jsp:include>  
  63.   
  64. 注意哦, 只有当页面加载真的需要花费时间的时候才会看到效果。  
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