请求返回结果如下

{
   "recordsFiltered": 8,
   "data": [{
      "userInfo": {
         "id": null,
         "user_id": null,
         "name": "admin",
         "name_en": null,
         "id_type": null,
         "id_num": null,
         "birthday": "2017-02-15 19:38:43",
         "wechat": null,
         "gender": 1,
         "origin": null,
         "country": null,
         "qq": null,
         "skype": null,
         "head_img_url": null,
         "address": null,
         "points": null,
         "opBy": null,
         "opAt": null,
         "delFlag": null
      },
      "user": {
         "id": "ceecc59641a34a659caac7f4f85a9dc8",
         "loginname": "superadmin",
         "password": null,
         "salt": null,
         "nickname": "超级管理员",
         "isOnline": false,
         "disabled": false,
         "email": "wizzer@qq.com",
         "loginAt": null,
         "loginIp": null,
         "loginCount": null,
         "customMenu": null,
         "loginTheme": null,
         "phone": "18888888888",
         "loginSidebar": false,
         "loginBoxed": false,
         "loginScroll": false,
         "loginPjax": false,
         "unitid": null,
         "unit": null,
         "roles": null,
         "units": null,
         "menus": null,
         "firstMenus": null,
         "secondMenus": null,
         "customMenus": null,
         "opBy": null,
         "opAt": null,
         "delFlag": null
      }
   }, {
      "userInfo": {
         "id": null,
         "user_id": null,
         "name": null,
         "name_en": null,
         "id_type": null,
         "id_num": null,
         "birthday": null,
         "wechat": null,
         "gender": null,
         "origin": null,
         "country": null,
         "qq": null,
         "skype": null,
         "head_img_url": null,
         "address": null,
         "points": null,
         "opBy": null,
         "opAt": null,
         "delFlag": null
      },
      "user": {
         "id": "555",
         "loginname": "555",
         "password": null,
         "salt": null,
         "nickname": "瓜皮组员",
         "isOnline": false,
         "disabled": false,
         "email": null,
         "loginAt": null,
         "loginIp": null,
         "loginCount": null,
         "customMenu": null,
         "loginTheme": null,
         "phone": null,
         "loginSidebar": false,
         "loginBoxed": false,
         "loginScroll": false,
         "loginPjax": false,
         "unitid": null,
         "unit": null,
         "roles": null,
         "units": null,
         "menus": null,
         "firstMenus": null,
         "secondMenus": null,
         "customMenus": null,
         "opBy": null,
         "opAt": null,
         "delFlag": null
      }
   }],
   "draw": 0,
   "recordsTotal": 0
}

datatables需要处理的是一个List<Map<>>每一个map里有一个key为user和一个key为userInfo的键值对
前端生病了，完全不知道怎么设置啊

 var datatable;
    function initDatatable() {
        datatable = $('.datatables-basic').DataTable({
            "dom": '<"top">rt<"bottom">lpi<"clear">',
            "searching":false,
            "pageLength":[10],
            "lengthMenu":[5,10,50],
            "processing": false,
            "serverSide": true,
            "select": true,
            "ordering": true,
            "info":true,
            "autoWidth":true,
            "language": {
                "url": "${base}/assets/plugins/datatables/cn.json"
            },

            "ajax": {
                "url": "${base}/platform/sys/user/dataStudent",
                "type": "post",
                "data": function (d) {
//                    d.unitid = $('#unitid').val();
                    d.loginname = $('#loginname').val();
                    d.nickname = $('#nickname').val();
                }
            },
            "order": [[1, "desc"]],
            "columns": [
                {"data": "user.loginname", "bSortable": true},
                {"data": "user.nickname", "bSortable": true},
                {"data": "user.disabled", "bSortable": true},
                {"data": "userInfo.email", "bSortable": true}
            ],
            "columnDefs": [
                {
                    "render": function (data, type, row) {

                         return '<div class="btn-group ">'+
                                '<button type="button" class="btn btn-indigo dropdown-toggle btn-ripple" data-toggle="dropdown">'+
                               ' 操 作 <span class="caret"></span>'+
                                '</button>'+
                                '<ul class="dropdown-menu" role="menu">'+
                                '<li><a href="${base}/platform/sys/user/detail/' + row.id + '" data-toggle="modal" data-target="#dialogUserDetail">基本信息</a></li>' +
                                '<li><a href="${base}/platform/sys/user/menu/' + row.id + '" data-toggle="modal" data-target="#dialogUserRightDetail">查看权限</a></li>' +
                                '<li class="divider"></li>' +
                                '<li><a href="${base}/platform/sys/user/edit/' + row.id + '" data-pjax>修改信息</a></li>' +
                                '<li><a href="javascript:;" onclick="resetPwd(\'' + row.id + '\')">密码重置</a></li>' +
                                '<li class="divider"></li>' +
                                '<li><a href="javascript:;" onclick="del(\'' + row.id + '\')">删除</a></li>' +
                                '<li class="divider"></li>' +
                                '<li><a href="javascript:;" onclick="enableUser(\'' + row.id + '\')">启用</a></li>' +
                                '<li><a href="javascript:;" onclick="disableUser(\'' + row.id + '\')">禁用</a></li>' +
                                '</ul>'+
                                '</div>';
                    },
                    "targets": 4
                },
                {
                    "render": function (data, type, row) {
                        if (!data) {
                            return '<i id="disable_' + row.id + '" class="fa fa-circle text-green ml5"></i>';
                        } else {
                            return '<i id="disable_' + row.id + '" class="fa fa-circle text-red ml5"></i>';
                        }
                    },
                    "targets": 2
                }
//                {
//                    "render": function (data, type, row) {
//
//                            return '	<td><input type="checkbox" class="checkboxes" value=\''+row.id+'\'></td>';
//
//                    },
//                    "targets": 0
//                }
            ]
        });
        datatable.on('click', 'tr', function () {
            $(this).toggleClass('selected');
        });
        $("#searchBtn").on('click', function () {
            datatable.ajax.reload();
        });
    }