之前用openid做识别，然后就让对应的用户使用自己的小程序，

现在无法获取openid的话，应该怎么识别具体用户？

<!--miniprogram/pages/login/login.wxml-->
<view class="userinfo">
  <view class="userinfo-avatar">
    <open-data  type="userAvatarUrl"></open-data>
  </view>
    <open-data type="userNickName"></open-data>
</view>


<button wx:if="{{canIUse&&!wait}}"  class="btn"
type="primary" open-type="getUserInfo" bindgetuserinfo="getUserInfo"> 授权登录 </button>
<view wx:elif="{{!canIUse}}">请升级微信版本</view>
<view wx:elif="{{wait}}" class="tips">{{name}}请等待审核</view>


<view class='toast-box' hidden='{{!inputname}}'>
        <view class='toastbg'></view>
        <view class='showToast'>
            <view class='toast-title'>
                <text>新建姓名</text>
            </view>
            <view class='toast-main'>
                <view class='toast-input'>
                    <input placeholder='请输入姓名' bindinput='setValue' data-name='stuEidtName'></input>
                </view>
            </view>
            <view class='toast-button'>
                <view class='button1'>
                    <button catchtap='cancel'>取消</button>
                </view>
                <view class='button2'>
                    <button catchtap='confirm'>确定</button>
                </view>
            </view>
        </view>
    </view>

// miniprogram/pages/login/login.js
// miniprogram/pages/putin/putin.js
import '../../utils/wxPromise.min.js'
const app = getApp()
Page({
  data: {
    canIUse: wx.canIUse('button.open-type.getUserInfo'),
    openID: '',
    wait: false,
    inputname: false,
    name: '',
  },


  onLoad: function () {


    this.getdb();
  },
  getdb: function () {
        /** * 赋值listTowsData，后续不用再读取*/
    wx.pro.request({
      url: 'https://hn2.api.XXX.com',
      data: {
        s: 'App.Table.FreeQuery',
        model_name: 'towsClass',
        where: '[["id", ">", "0"]]',
        app_key: 'XXXXXXXXXXX'
      },
      method: 'GET',
      header: {
        'content-type': 'application/json'
      }
    }).then(res => {
      app.listTowsData = res.data.data.list
    }).catch(err => {
      console.log(err)
    }).finally(() => {
      wx.hideLoading()
    })
  },


})