程序员刘杨

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2010年01月10日   JavaScript, 头条, 码农之路   7,258 次浏览

祝大家新年快乐,有任何问题可与我联系:点击这里给我发消息

今天本来是准备用STRUTS2实现表格分页的,但是突然间发现很麻烦,因为我所有的东西都已经做好了,就只剩下表格没有分页了,要再去改代码的话会很麻烦,就去网上找看有没有简单点的方法,最后决定了用JS实现分页,原因有两点:1、用JS去做不用去改程序的代码,只要加上JS代码就可以了;2、我所有的表格里面的数据都不是很多,不用担心处理速度和内存的问题。

在网上找了上些代码,都不是很好,不能够通用,自己修改了一下,能够通用了,以下是代码(直接复制就可以在网页中看到效果):

————————pagesplit.js——————————————–

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// 纯js分页分页函数
// 参数:表对象,当前页码,每页行数,表头行数,表尾行数,分页对象
function pageSplit(obj, pno, psize, headNum, footNum,obj1) {
 var itable = document.getElementById(obj);
 var num = itable.rows.length;//表格行数
 var realNum = num - headNum - footNum;//实际数据行数
 var pageSize = psize;//每页显示行数
 
 if(realNum <= pageSize) {
  return;
 }
 
 var totalPage = parseInt((realNum+pageSize-1)/pageSize);//总页数
 var currentPage = pno;//当前页码
 var startRow = (currentPage - 1) * pageSize + 1;//开始显示的行
 var endRow = currentPage * pageSize + 1;//结束显示的行
 endRow = (endRow > num) ? num : endRow;
 
 //前headNum行始终显示
 for (i = 0; i < headNum; i++) {
  var irow = itable.rows[i];
  irow.style.display = "block";
 }
 for (var i = headNum; i < num - footNum; i++) {
  var irow = itable.rows[i];
  if (i >= startRow && i < endRow) {
   irow.style.display = "block";
  } else {
   irow.style.display = "none";
  }
 }
 //后footNum行始终显示
 for (i = num - footNum; i < footNum; i++) {
  var irow = itable.rows[i];
  irow.style.display = "block";
 }
 
 var tempStr = "共" + currentPage + "/" + totalPage + "页";
 if (currentPage > 1) {
  tempStr += "<a style='cursor:hand;' onClick=\"pageSplit('" + obj + "'," + (1) + "," + psize + "," + headNum + "," + footNum + ",'" + obj1 + "')\">首页</a>";
  tempStr += "<a style='cursor:hand;' onClick=\"pageSplit('" + obj + "'," + (currentPage - 1) + "," + psize + "," + headNum + "," + footNum + ",'" + obj1 + "')\">上一页</a>";
 }
 else {
  tempStr += "首页";
  tempStr += "上一页";
 }
 if (currentPage < totalPage) {
  tempStr += "<a style='cursor:hand;' onClick=\"pageSplit('" + obj + "'," + (currentPage + 1) + "," + psize + "," + headNum + "," + footNum + ",'" + obj1 + "')\">下一页</a>";
  tempStr += "<a style='cursor:hand;' onClick=\"pageSplit('" + obj + "'," + (totalPage) + "," + psize + "," + headNum + "," + footNum + ",'" + obj1 + "')\">尾页</a>";
 }
 else {
  tempStr += "下一页";
  tempStr += "尾页";
 }
 
 document.getElementById(obj1).innerHTML = tempStr;
}

————————pagesplit.js——————————————–

————————pagesplit.html——————————————–

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<html>
 <head>
  <script type="text/javascript" src="pagesplit.js"></script>
  </head>
 
 <body onLoad="pageSplit('pTable',1,3,1,1,'pSpan');">
  <table id="pTable">
   <thead>
    <tr><td>姓名</td><td>姓别</td><td>年龄</td></tr>
   </thead>
   <tbody>
    <tr><td>name1</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name2</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name3</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name4</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name5</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name6</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name7</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name8</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name9</td><td>sex1</td><td>age1</td></tr>
    <tr><td>name10</td><td>sex1</td><td>age1</td></tr>
   </tbody>
   <tfoot>
    <tr><td colspan="3"><span id="pSpan"></span></td></tr>
   </tfoot>
  </table>
 </body>
 
</html>

————————pagesplit.html——————————————–

我已经自己调试能过了,希望能对大家有用。

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