基于Jquery+Ajax+Json实现分页显示

1.后台action产生json数据。

 List blackList = blackService.getBlackInfoList(mobileNum, gatewayid, startDate, endDate);
 int totalRows = blackList.size();
 StringBuffer sb = new StringBuffer();
          sb.append("{\"totalCount\":\""+totalRows+"\",");
          sb.append("\"jsonRoot\":[");
          for (int i=0;i
              LBlack blackInfo = (LBlack)blackList.get(i);
              sb.append("{\"id\":\""+ blackInfo.getId());
              sb.append("\",");
              sb.append("\"mobile\":\""+ blackInfo.getMobile());
              sb.append("\",");
              sb.append("\"province\":\""+ blackInfo.getProvince());
              sb.append("\",");
              sb.append("\"gateway\":\""+ blackInfo.getGateway());
              sb.append("\",");
              sb.append("\"insertTime\":\""+ blackInfo.getInsertTime());
              sb.append("\",");
              sb.append("\"remark\":\""+ blackInfo.getRemark());
              sb.append("\"");
              sb.append("},");
          }
          sb.deleteCharAt(sb.lastIndexOf(","));  // 删去最后一个逗号
          sb.append("]}");

          HttpServletResponse response = ServletActionContext.getResponse();
          response.setContentType("text/plain");
          response.getWriter().print(sb);

2.struts.xml相关配置

 <action name="blackList" class="blackAction" method="blackList">

     <result type="plainText">
     <param name="charSet">UTF-8param>
     <param name="location">/WEB-INF/jsp/manage/black.jspparam>
     result>
 action>

3.js获取json数据分页显示

 function getJSONData(pn) {
     // alert(pn);
     $.getJSON("blackList.ce", function(data) {
         var totalCount = data.totalCount; // 总记录数
         var pageSize = 10; // 每页显示几条记录
         var pageTotal = Math.ceil(totalCount / pageSize); // 总页数
         var startPage = pageSize * (pn - 1);
         var endPage = startPage + pageSize - 1;
         var $ul = $("#json-list");
         $ul.empty();
         for (var i = 0; i < pageSize; i++) {
             $ul.append('
         }
         var dataRoot = data.jsonRoot;
         if (pageTotal == 1) {     // 当只有一页时
             for (var j = 0; j < totalCount; j++) {
                 $(".li-tag").eq(j).append("+parseInt(j + 1)+"'/>")
                 .append("" + parseInt(j + 1)
                         + "").append("" + dataRoot[j].mobile
                         + "").append("" + dataRoot[j].province
                         + "").append("" + dataRoot[j].gateway
                         + "").append("" + dataRoot[j].insertTime
                         + "").append("" + dataRoot[j].remark
                         + "")
             }
         } else {
             for (var j = startPage, k = 0; j < endPage, k < pageSize; j++, k++) {
                 if( j == totalCount){
                     break;       // 当遍历到最后一条记录时，跳出循环
                 }
                 $(".li-tag").eq(k).append("+parseInt(j + 1)+"'/>")
                 .append("" + parseInt(j + 1)
                         + "").append("" + dataRoot[j].mobile
                         + "").append("" + dataRoot[j].province
                         + "").append("" + dataRoot[j].gateway
                         + "").append("" + dataRoot[j].insertTime
                         + "").append("" + dataRoot[j].remark
                         + "")
             }
         }
         $(".page-count").text(pageTotal);
     })
 }
 function getPage() {
     $.getJSON("blackList.ce", function(data) {
                 pn = 1;
                 var totalCount = data.totalCount; // 总记录数
                 var pageSize = 10; // 每页显示几条记录
                 var pageTotal = Math.ceil(totalCount / pageSize); // 总页数
                 $("#next").click(function() {
                             if (pn == pageTotal) {
                                 alert("后面没有了");
                                 pn = pageTotal;
                             } else {
                                 pn++;
                                 gotoPage(pn);
                             }
                         });
                 $("#prev").click(function() {
                             if (pn == 1) {
                                 alert("前面没有了");
                                 pn = 1;
                             } else {
                                 pn--;
                                 gotoPage(pn);
                             }
                         })
                 $("#firstPage").click(function() {
                             pn = 1;
                             gotoPage(pn);
                         });
                 $("#lastPage").click(function() {
                             pn = pageTotal;
                             gotoPage(pn);
                         });
                 $("#page-jump").click(function(){
                     if($(".page-num").val()  <= pageTotal && $(".page-num").val() != ''){
                         pn = $(".page-num").val();
                         gotoPage(pn);
                     }else{
                         alert("您输入的页码有误！");
                         $(".page-num").val('').focus();
                     }
                 })
                 $("#firstPage").trigger("click");

             })
 }
 function gotoPage(pn) {
     // alert(pn);
     $(".current-page").text(pn);
     getJSONData(pn)
 }

 $(function() {
     getPage();
 })