ajax调用action问题

Question

很简单的例子http://blog.sina.com.cn/s/blog_7d0c4ede0101bxms.html

Answer 1

网页代码：
<div id="writeObserver">
  <a id="a2" href="#readObserver">局部刷新页面</a><!--点击这里出发action在下面层中显示-->
  </div> 
  <br/>
  <div id="readObserver"><!-- 这个层里显示数据库的数据 -->
  <table width="1024px" border="1">
    <tr style="font-size:12px;">
    <th>vip</th><th>北站</th> <th>德雅路</th> <th>福安</th><th>四方坪</th><th>远大</th><th>大托铺</th><th>女大</th><th>新开铺</th><th>花侯</th>
    <th>井湾子</th> <th>圭塘</th><th>南湖路</th><th>三一</th><th>荣银桥</th><th>望城</th> <th>车站路</th> <th>火星</th><th>桐梓坡</th>  <th>曙光</th>
    
    </tr>
    <!-- 接收的属性为users 取别名为u 
    -->
     <c:forEach items="${data}" var="a"  begin="0" end="3">
     <tr>
     <td width="48">${a.vip}</td> <td width="48">${a.beiz}</td>  <td width="48">${a.deyl}</td> <td width="48">${a.fuan}</td><td width="48">${a.sifp }</td> <td width="48">${a.yuand}</td>  <td width="48">${a.datp}</td> <td width="48">${a.nvd}</td> <td width="48">${a.xinkp }</td> <td width="48">${a.huah}</td>  <td width="48">${a.jinwz}</td> 
     <td width="48">${a.guit}</td> <td width="48">${a.nanhl}</td><td width="48">${a.sany}</td> <td width="48">${a.rongyq}</td><td width="48">${a.wangc }</td> <td width="48">${a.chezl}</td>  <td width="48">${a.huox}</td> <td width="48">${a.tongzp}</td> <td width="48">${a.shug}</td>
     </tr>
     </c:forEach>
    
    </table><br/><br/>
</div>
  <script type="text/javascript">
  $(function(){a();});
     function a(){
   $("#a2").bind("click",function(){readComment();});   //初始为从0条记录开始查询
  }
  function readComment(){
   $.post("ches.action", function(data){$("#readObserver").html(data);});
  }
  </script>
Struts.xml代码：
<action name="ches" class="com.UserAction" method="selects">
<result name="error">WEB-INF/error.jsp</result>
<result name="success">WEB-INF/regist.jsp</result>
</action>
求大神帮我修改
com.UserAction下面的方法
 public String selects() { 
  List arr=new ArrayList();
String sql = "select * from xiaoqume";
ResultSet rs = dao.executeQuery(sql);
try {
while(rs.next()) {
User user=new User();
user.setId(rs.getInt(1));
user.setVip(rs.getString(2));
user.setBeiz(rs.getString(3));
user.setDeyl(rs.getString(4));
user.setFuan(rs.getString(5));
user.setSifp(rs.getString(6));
user.setYuand(rs.getString(7));
user.setDatp(rs.getString(8));
user.setNvd(rs.getString(9));
user.setXinkp(rs.getString(10));
user.setHuah(rs.getString(11));
user.setJinwz(rs.getString(12));
user.setGuit(rs.getString(13));
user.setNanhl(rs.getString(14));
user.setSany(rs.getString(15));
user.setRongyq(rs.getString(16));
user.setWangc(rs.getString(17));
user.setChezl(rs.getString(18));
user.setHuox(rs.getString(19));
user.setTongzp(rs.getString(20));
user.setShug(rs.getString(21));
arr.add(user);
}
  ActionContext.getContext().put("data", arr);
return SUCCESS;
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return ERROR;

}
 } 求修改