学习状态定义:
    -1: 被删除
    1：学习结束
    11： 正常
    5： 等待建档
    0： 服务过期

    搜索用户，返回null或者一条数据
    GET: /lms/search?searchKey=Y10583046
    return: {
    “wechatName”: “金晶”,
    “cellphone”: “E-Z10439475”,
    “userID”: “Y10583046”,
    “createdDate”: “2020-06-29T14:17:25.939+0800”,
    “studentStatus”: 11,
    “tutorWxName”: “(无)”
    }

    查看用户服务：
    GET: /lms/stduent/Y10583046/service
    return:
    [
    {
    “serviceId”: 8,
    “productTypeId”: 1,
    “productName”: “托福全程班”,
    “serviceStartDate”: “2020-06-18T16:00:37.000+0800”,
    “serviceEndDate”: “2022-08-26T09:14:12.000+0800”,
    “serviceStatus”: 11,
    “testTypeId”: 4,
    “testTypeName”: “托福”
    }
    ]

    从学管中移除
    DELETE: /lms/stduent/Y10583046