//1.页面布局
<div style="padding: 0 0 20px 0;">
 <input type="hidden" class="tip" value="1">
 <input style="background:#01affe;color: #fff;cursor: pointer;
    text-align:center;height:30px;vertical-align: middle;padding:0 5px;
    type="button" name="more" id="more" value="加载更多" onclick="moredata();"/>
</div>

//2.js代码
function moredata(){
  var ptip = $('.tip').val();
  var jstr = {pageno:ptip};
  $.ajax({
   url: '${rc.getcontextpath()}/publicity/more.do',//url以具体为实现
   type: 'post',
   datatype: 'html',
   data:jstr,
   timeout: 5000,
   cache: false,
   beforesend: loadfunction, //加载执行方法
   error: erryfunction, //错误执行方法
   success: succfunction //成功执行方法
  })

  function loadfunction() {
   $("#more").val('加载中...');
  }
  function erryfunction() {
  alert("获取数据错误，请重试！");
  $("#more").val('加载更多');
  }
  function succfunction(data) {
  if(data!=null && data!=""){
   $('.tip').val(++ptip);
   $("#more").val('加载更多');
   $('.maincontent').append(data);
  }else{
   $("#more").val('无更多数据');
   $("#more").attr('disabled',true);
  }
 }

//3.后台代码
//3.1 java代码实现
import java.util.list;
import javax.servlet.http.httpservletrequest;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.stereotype.controller;
import org.springframework.ui.modelmap;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestmethod;
import com.appmoudle.base.consts;
import com.appmoudle.model.ssdj.publicity;
import com.appmoudle.service.publicityservice;

@controller
@requestmapping("/publicity")
public class moredata {

 private string ftlurl = ".../publicity/moredata.ftl";

 @autowired
 private publicityservice publicityservice;

 @requestmapping(value="more",method=requestmethod.post)
 public string getmoredata(httpservletrequest request,modelmap map){
  integer start = 0;
  string pageno = request.getparameter("pageno");
  if(pageno!=null){
   start = integer.parseint(pageno) * 20;
  }
  list<publicity> datalist = publicityservice.findlist(start, consts.page_size, null, "1", null, null);
  map.put("index_number", start);
  map.put("datalist", datalist);
  return ftlurl;
 }
}

//3.2 模板页面
//(moredata.ftl)
<#if datalist??>
 <#list datalist as dataitem>
  <tr>
   <td class='f-blue'>${dataitem_index+1+index_number}</td>
   <td>
    <#if dataitem.comp_name?length &gt; 12>
     ${dataitem.comp_name?substring(0,12)}..
    <#else>
     ${dataitem.comp_name}
    </#if>
   </td>
   <td>${dataitem.license_number}</td>
   <td>
    <#if dataitem.license_name?length &gt; 10>
     ${dataitem.license_name?substring(0,10)}..
    <#else>
     ${dataitem.license_name}
    </#if>
   </td>  
   <td>
    <#if dataitem.validaty_start?has_content>
     ${dataitem.validaty_start?date}
    </#if>
   </td> 
   <td>
    <#if dataitem.validaty_end?has_content>
     ${dataitem.validaty_end?date}
    </#if>
   </td> 
   <td>
    <#if dataitem.license_content?length &gt; 20>
     ${dataitem.license_content?substring(0,20)}..
    <#else>
     ${dataitem.license_content}
    </#if>
    </td>
  </tr>
 </#list>
</#if>