利用jQuery中的ajax分页实现代码_jquery

<div style="display: none;"> 
 <div id="productMessageDiv" class="showParentDiv" style="width:950px;height:400px"> 
  <div id="showProductListMsg"> 
   <div class="grayBg"> 
    <div id="toolbarScroll"> 
    <span> 
     <input type="button" value=" 确定 " onclick="submitProductMessage();"> 
     <input type="button" value=" 取消 " onclick="closeProduct();"> 
     <input type="button" value=" 查询 " onclick="selectProduct();"> 
     <input id="value" name="value" type="text" class="width_132"> 
     <select id="key" name="key" class="width_115"> 
     </select> 
    </span> 
    </div> 
   <div class="page" id="page"> 
    <jsp:include page="/portal/common/page/page_ajax.jsp"> 
   </jsp:include></div> 
   <div class="clearFloat"></div> 
   </div> 
  <div class="scrollInfo"> 
   <div class="tableInfo" style="overflow-y:scroll; height:365px;"> 
    <table id="dragTable" border="0" cellpadding="0" cellspacing="0"> 
    <thead> 
     <tr> 
     <td width="4%"> 
      <input type="checkbox" id="selectallCheckBox" onclick="selectListall();"> 
     </td> 
     <td width="%">产品编码</td> 
     <td width="%">产品名称</td> 
     <td width="%">产品型号</td> 
     <td width="%">产品品牌</td> 
     <td width="%">产品分类</td> 
     <td width="%">供应商</td> 
     <td width="%">产品规格</td> 
     </tr> 
    </thead> 
    <tbody id="msgContent"> 
     
    </tbody> 
    </table> 
   </div> 
  </div> </div></div></div>

var ajaxUrl; 
var showDivName; 
var ajaxFunctionName; 
jQuery.extend({ 
 pageAjax: function(url,div,functionName){ 
 ajaxUrl=url; 
 showDivName=div; 
 ajaxFunctionName=functionName; 
 $.ajax({ 
  url:url, 
  data:{"pageRequest.page":$('#pagePage').val(),"pageRequest.rows":$('#pageRows').val()}, 
  dataType: "json", 
  success: function(data){ 
  eval(functionName+"(data)"); 
  $.changePageAjax(data); 
  showWin(div); 
  } 
 }); 
 }, 
 pageAjaxOfParam: function(url,div,functionName,key,value){ 
 $.ajax({ 
  url:url, 
  data:{"pageRequest.page":$('#pagePage').val(),"pageRequest.rows":$('#pageRows').val(),"key":key,"value":value}, 
  dataType: "json", 
  success: function(data){ 
  eval(functionName+"(data)"); 
  $.changePageAjax(data); 
  showWin(div); 
  } 
 }); 
 } 
 , 
 changePageAjax: function(data) { 
 var totalCount = data.totalCount; 
 changeDefaultRows(data); 
 var pageCount = totalCount % parseInt($("#pageRows").val())== 0 ? 
   parseInt(totalCount/parseInt($("#pageRows").val())): 
   parseInt(totalCount/parseInt($("#pageRows").val()))+1; 
 $("#totalPage").html(pageCount+''); 
 $("#totalCount").html(totalCount+''); 
 changeButton(pageCount); 
 } 
}); 
 
function changePage(pageTitle) { 
 if(pageTitle == "previous"){ 
 $('#pagePage').val(parseInt($('#pagePage').val()) - 1); 
 }else if(pageTitle == "next"){ 
 $('#pagePage').val(parseInt($('#pagePage').val()) + 1); 
 }else if(pageTitle == "first"){ 
 $('#pagePage').val(1); 
 }else if(pageTitle == "last"){ 
 var totalCount = parseInt($('#totalCount').html()); 
 $('#pagePage').val(parseInt((totalCount - 1) / parseInt($('#pageRows').val()) + '') + 1); 
 } 
 go(); 
} 
 
function goToPointedPage(){ 
 var pointedPageNum = $('#forwardPageNum').val(); 
 var patrn = /^\+?[1-9][0-9]*$/; 
 if(!patrn.exec(pointedPageNum)){ 
 alert('页数请输入正整数'); 
 return; 
 } 
 if(parseInt(pointedPageNum) > parseInt($('#totalPage').html())){ 
 alert('输入页数不得超过最大页数'); 
 return; 
 } 
 $('#pagePage').val(parseInt(pointedPageNum)); 
 go(); 
} 
 
function changeButton(pageCount){ 
 $('#forwardPageNum').val($('#pagePage').val()); 
 if(pageCount == 1){ 
 $("#beforePage").attr("disabled","disabled"); 
 $("#firstPage").attr("disabled","disabled"); 
 $("#nextPage").attr("disabled","disabled"); 
 $("#lastPage").attr("disabled","disabled"); 
 }else if($("#forwardPageNum").val() < pageCount){ //如果页数比总页数小，则下一页和末页能用 
 $("#nextPage").removeAttr("disabled"); 
 $("#lastPage").removeAttr("disabled"); 
 if($("#forwardPageNum").val() >1){ //如果页数大于1，说明 1<页数<总页数 说明全部都可用 
  $("#firstPage").removeAttr("disabled"); 
  $("#beforePage").removeAttr("disabled"); 
 }else{     //在页数比总页数小的其他情况下，就只存在一种就是等于1 
  $("#firstPage").attr("disabled","disabled"); //当等于1 的时候，首页和上一页不可用 
  $("#beforePage").attr("disabled","disabled"); 
 } 
 } else{ 
 $("#beforePage").removeAttr("disabled"); 
 $("#firstPage").removeAttr("disabled"); 
 $("#nextPage").attr("disabled","disabled"); 
 $("#lastPage").attr("disabled","disabled"); 
 } 
} 
 
function changeDefaultRows(data){ 
 if($("#pageRows").val()==null||$("#pageRows").val()==""){ 
 $("#pageRows").empty(); 
 $("#pageRows").append("<option value=""+data.pAGESIZES[0]+"">默认条数</option><option value=""+data.pAGESIZES[1]+"">"+data.pAGESIZES[1]+"</option><option value=""+data.pAGESIZES[2]+"">"+data.pAGESIZES[2]+"</option>"); 
 } 
} 
 
function changeRows(){ 
 $('#pagePage').val(1); 
 go(); 
} 
function go(){ 
 $.pageAjax(ajaxUrl,showDivName,ajaxFunctionName); 
} 
 
function clearPageInfo(){ 
 $("#pagePage").val('1'); 
} 
 
$(function(){ 
 $("body").keydown(function(event){ 
  if(event.keyCode == 13){ 
  goToPointedPage(); 
 } 
 }); 
}); 
 
<!-- script--> 
<div class="toolbarScroll"> 
 <s:hidden name="pageRequest.page" id="pagePage"> 
 <input id="firstPage" value=" 首页 " type="button" onclick="changePage('first')"> 
 <input id="beforePage" value=" 上一页 " type="button" onclick="changePage('previous')"> 
 <input size="6" maxlength="3" id="forwardPageNum" class="formStylePage" onblur="goToPointedPage()" value="" type="text" style="text-align: center;">/ 
 <span class="currentPage" id="totalPage"> 
 </span> 
 <input id="nextPage" value=" 下一页 " type="button" onclick="changePage('next')"> 
 <input id="lastPage" value=" 末页 " type="button" onclick="changePage('last')"> 
 共<span id="totalCount"></span>条 
 <span> 
 <select id="pageRows" name="pageRequest.rows" onchange="changeRows()"></select> 
 </span> 
</s:hidden></div>