jsp表头固定

该博客介绍了如何使用CSS实现jsp表格中表头固定的显示效果,以保持在滚动时表头始终可见。通过设置相对定位、固定高度和宽度、以及表达式来调整元素位置,确保表头在数据区域滚动时保持固定。

<HTML> 
<HEAD> 
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">  
<style type="text/css">  
       .FixedTitleRow  
         {  
             position: relative;   
             top: expression(this.offsetParent.scrollTop-2);   
             z-index: 10;  
            background-color: #E6ECF0;  
        }  
  
         .FixedTitleColumn  
         {  
             position: relative;   
             left: expression(this.parentElement.offsetParent.scrollLeft-2);  
         }  
           
        .FixedDataColumn  
         {  
             position: relative;  
             left: expression(this.parentElement.offsetParent.parentElement.scrollLeft-2);  
             background-color: #E6ECF0;  
         }  
  
 </style> 
  
 </HEAD> 
 <BODY> 
 <div style="width:800px;height:560px;overflow-x:auto;overflow-y:no">  
     <Table border=1>  
         <tr class="FixedTitleRow">  
             <th class="FixedTitleColumn" colspan="2">xxxx1</th>
    <th class="FixedTitleColumn">xxxx2</th>
             <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
    <th class="">th4</th>
         </tr> 
         <tr> 
             <td class="FixedDataColumn">xxxxyyyy</td> 
             <td class="FixedDataColumn">xxxxyyyy</td> 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
             <td class="FixedDataColumn" rowspan="19">xxxxyyyy</td> 
             <td class="FixedDataColumn" rowspan="19">xxxxyyyy</td> 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 

             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
   
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
  
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
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             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
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    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
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    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
    <td>td1</td>
    <td>td1</td>
    <td>td1</td>
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    <td>td1</td>
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         </tr>
   <tr> 
 
             <td class="FixedDataColumn">xxxxyyyy</td>  
             <td>td1</td>
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         </tr>
         </tr>
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