关于#小程序#的问题：VM939 WAService.js:2 TypeError: Cannot read property 'openid' of null(语言-javascript)

做小程序获取openid时

const cloud=require('wx-server-sdk')
cloud.init()

  exports.main = async(event, context) => {
    console.log(event)
    console.log(context)

    const wxContext = await cloud.getWXContext()

    return {
      event,
      openid: wxContext.OPENID,
      appid: wxContext.APPID,
      unionid: wxContext.UNIONID,

    }
  }

[sitemap 索引情况提示] 根据 sitemap 的规则[0]，当前页面 [pages/index/index] 将被索引
VM939 WAService.js:2 TypeError: Cannot read property 'openid' of null

云函数日志里调用成功 为什么还是报错啊

调用的代码在哪？这个只是获取的。错误提示是对象为null，再获取对象的openid属性就出错了。题主检查下获取对象的代码，是否成功赋值

有帮助或启发麻烦点下【采纳该答案】，谢谢~~有其他问题可以继续交流~

返回的openid为null吧

//index.js
Page({
  data: {
    userInfo: {},
    hasUserInfo: false,
    canIUse: wx.canIUse('button.open-type.getUserInfo'),
    openID: '',
    detail: '点击头像显示你的详细信息'
  },

  onLoad: function (options) {
    wx.getSetting({
      success: res => {
        if (res.authSetting['scope.userInfo']) {
          wx.getUserInfo({
            success: res => {
              this.setData({
                userInfo: res.userInfo,
                hasUserInfo: true
              })
            }
          })
        }
      }
    })
    this.getOpenID()
  },
  getUserInfo: function (e) {
    console.log(e)
    if (e.detail.userInfo) {
      this.setData({
        userInfo: e.detail.userInfo,
        hasUserInfo: true
      })
    } else {
      wx.showModal({
        title: e.detail.errMsg,
        content: '小程序需要用户授权获取公开信息才可以继续。',
      })
    }
  },
  getOpenID: function () {
    var that = this;
    wx.showLoading({
      title: '获取OpenID。。。',
    })
    wx.cloud.callFunction({
      name: 'login',
      data: {},
      complete: res => {
        wx.hideLoading()
      },
      success: res => {
        console.log('[云函数] [login] user openid:', res.result.openid)
        that.setData({
          openID: '[云函数]获取openID成功:' + res.result.openid,
        })
      },
      fail: err => {
        console.error('[云函数] [login] 调用失败', err)
        that.setData({
          openID: '[云函数]获取openID失败' + err
        })
      }
    })
  },
  getDetail: function () {
    var userInf = this.data.userInfo;
    var gender = (userInf.gender == 1) ? "男" : (userInf.gender == 2) ? "女" : "未知";
    var detailStr = "性别：" + gender;
    detailStr = detailStr + "\n国家：" + userInf.country;
    detailStr = detailStr + "\n省份：" + userInf.province;
    detailStr = detailStr + "\n城市：" + userInf.city;
    this.setData({
      detail: detailStr
    })
  }
})