请问 DataGrid 删除的话是如何实现？以下是我的代码

userDatagrid.datagrid({
                url : User.URL.getUsers(),
                striped : true,
                rownumbers : true,
                pagination : true,
                singleSelect : true,
                idField : 'id',
                sortName : 'createTime',
                sortOrder : 'asc',
                pageSize : 20,
                pageList : [ 10, 20, 30, 40, 50, 100, 200, 300, 400, 500 ],
                frozenColumns : [ [
                    {field: 'ck', checkbox: true},
                    {width:'10',title:'id',field:'id',hidden:true},
                    {
                    width : '80',
                    title : '登录名',
                    field : 'loginName',
                    sortable : true
                }, {

删除按钮代码

 <a href="javascript:void(0)"
       data-toggle="topjui-menubutton"
       data-options="method:'doAjax',btnCls:'topjui-btn-normal',
       iconCls:'fa fa-trash',
       url:'/user/delete/{id}',
       grid: {uncheckedMsg:'请先勾选要删除的数据'}">删除</a>

控制层代码：

RequestMapping("/delete/{id}")
    @ResponseBody
    public Object delete(@PathVariable String id){
        return userService.delete(id);
    }