@RequestMapping("/list")
  public @ResponseBody java.util.ListUserVO> List() throws Exception{
    return service.get();
  }

body>
div id="datatable">/div>
/body>
script type="text/javascript">
$(document).ready(function(){
  $.ajax({
    type:"get",
    url:"/meihao/login/list.action",
    async:true,
    success:function(result){
      var m="ul>";
      result=JSON.parse(result); 
      $.each(result, function(i,n) {
        console.log(n);
        m+="li>"+"姓名："+n["username"]+"密码："+n["password"]+"/li>";
      });
      m+="/ul>";
      $("#datatable").append(m);  
    },
    error:function(error){
      alert(error.status+""+error.statusText);
    }
  });
});
/script>