云函数操作数据库，为什么返回NULL，什么结果都没有哪里有问题？Why does the cloud function return NULL when operating the database? There is no problem with any result?
// 云函数模板
// 部署：在 cloud-functions/login 文件夹右击选择 “上传并部署”
const cloud = require('wx-server-sdk')
// 初始化 cloud
cloud.init({
// API 调用都保持和云函数当前所在环境一致
env: "anjianteam-7gwp9t1fd42848b0"
})
const db = cloud.database()
const loguser = "Ts51102186"
const logpwd = "Ts51102186"
/** * 这个示例将经自动鉴权过的小程序用户 openid 返回给小程序端 *
* event 参数包含小程序端调用传入的 data* */
exports.main = async (event, context) => {
const wxContext = cloud.getWXContext()
const openid =wxContext.OPENID //存储openid
let usInfo = event.userInfo //存储参数userinfo
console.log(wxContext.OPENID)
if (event.loguser === loguser && event.logpwc === logpwd) { //校验用户名密码
console.log('第2步')
//添加userInfo数据开始
// let userInfo = event.userInfo
const _ = db.command
let searchres = await db.collection('userInfo').where({
_id: openid
}).get();
console.log('打印查询数',searchres) //判断是否存在
if (searchres.data.length === 0) {
console.log('不存在该用户add')
db.collection('userInfo').add({
data: {
_id: openid,
userInfo: usInfo
},
success: function (res) {
console.log(res)
return openid
}
})
}
}
}
//Cloud function template / / deployment: right click in the cloud functions / login folder and select "upload and deploy" const cloud = require ('wx server SDK ') / / initialize cloud cloud.init ({/ / API calls are consistent with the current environment of cloud functions env: "anjianteam-7gwp9t1fd42848b0"}) const DB= cloud.database () const loguser = "Ts51102186" const logpwd = "Ts51102186" / * * this example returns the automatically authenticated openid of the applet user to the applet side * * the event parameter contains the data * that the applet side calls in*/ exports.main = async (event, context) => { const wxContext = cloud.getWXContext () const openid = wxContext.OPENID //Store openid let usinfo= event.userInfo //Store parameter userinfo console.log ( wxContext.OPENID ) if ( event.loguser === loguser && event.logpwc ===Logpwd) {/ / verify user name and password console.log ('step 2 ') / / start adding userinfo data / / let userinfo= event.userInfo const _ = db.command let searchres = await db.collection ('userInfo').where({ _ id: openid }).get(); console.log ('number of print queries', searches) / / judge whether there is an if（ searchres.data.length === 0) { console.log ('the user does not exist add ') db.collection ('userInfo').add({ data: { _ id: openid, userInfo: usInfo }, success: function (res) { console.log (res) return openid } }) } } }
自己感受一下
