json数据中有另一组数据 怎么在@RequestParam
``` @RequestParam(value = "", required = false) String remark,
@RequestParam(value = "result", required = false) Integer status,
在value中应该填什么参数
这是json数据，想获取maintenance中remark
"data": {
"id": "893361931707142145",
"deleted": false,
"maintenanceId": "892204287054102529",
"workerId": "854362944458219520",
"type": "0",
"appointmentTime": "1502520240000",
"plan": "维修",
"expense": "1440.0",
"finishTime": "1504853040000",
"rating": "满意",
"result": "0",
"typeName": "首次维修",
"maintenance": {
"id": "892204287054102529",
"createdTime": "1501553053000",
"deleted": false,
"communityId": "877538407917617152",
"ownerId": "879384534400905216",
"type": "0",
"reportMethod": "1",
"content": "东侧外墙往内渗水",
"status": "4",
"availableTime": "周日周六可修",
"remark": "",
