小程序云開發(fā)之用戶注冊(cè)登錄

<!--pages/register/index.wxml-->
<view>
<i-input bind:change='inputName' maxlength="15" title="賬號(hào)" autofocus placeholder="請(qǐng)輸入賬號(hào)" />
<i-input bind:change='inputPassword' maxlength="15" title="密碼" autofocus placeholder="請(qǐng)輸入密碼" />
<i-button bindtap='register' type="success">注冊(cè)</i-button>
</view>

// pages/register/index.js
let app = getApp();
//獲取云數(shù)據(jù)庫(kù)引用
const db = wx.cloud.database();
const admin = db.collection('adminlist');
 let name = null;
 let password = null;

Page({
 data: {
 },
 //輸入用戶名
 inputName:function(event){
 name = event.detail.detail.value
 },
 //輸入密碼
 inputPassword(event){
 password = event.detail.detail.value
 },


// .where({
// _openid: app.globalData.openid // 填入當(dāng)前用戶 openid
// })

 // wx.showModal({
 // title: '提示',
 // content: '您已注冊(cè)，確定要更新賬號(hào)密碼嗎？',
 // success: function (res) {
 // if (res.confirm) {
 // console.log('用戶點(diǎn)擊確定')
 // that.saveuserinfo();
 // }
 // }
 // })

 //注冊(cè)
 register(){ 
 let that = this;
 let flag = false //是否存在 true為存在
 //查詢用戶是否已經(jīng)注冊(cè)
 admin.get({
 success:(res)=> {
 let admins = res.data; //獲取到的對(duì)象數(shù)組數(shù)據(jù)
 // console.log(admins);
 for (let i=0; i<admins.length; i++){ //遍歷數(shù)據(jù)庫(kù)對(duì)象集合
 if (name === admins[i].name){ //用戶名存在
 flag = true;
 // break;
 }
 }
 if(flag === true){ //已注冊(cè)
 wx.showToast({
 title: '賬號(hào)已注冊(cè)！',
 icon: 'success',
 duration: 2500
 })
 }else{ //未注冊(cè)
 that.saveuserinfo()
 }
 }
 })
 },


 //注冊(cè)用戶信息
 saveuserinfo() {
 // let that = this;
 admin.add({ //添加數(shù)據(jù)
 data:{
 name:name,
 password: password
 }
 }).then(res => {
 console.log('注冊(cè)成功！')
 wx.showToast({
 title: '注冊(cè)成功！',
 icon: 'success',
 duration: 3000
 })
 wx.redirectTo({
 url: '/pages/login/login',
 })
 })
 },
})

wx.cloud.init({
 env: 'fighting'1323797232-e05624',
 traceUser: true
 })

<!--pages/login/login.wxml-->
<view>
<i-input bind:change='inputName' maxlength="15" title="賬號(hào)" placeholder="請(qǐng)輸入賬號(hào)" />
<i-input bind:change='inputPassword' maxlength="15" title="密碼" placeholder="請(qǐng)輸入密碼" />
<i-button bindtap='login' type="primary">登錄</i-button>
<i-button bindtap='register' type="success">注冊(cè)</i-button>
</view>

// pages/login/login.js
let app = getApp();
// 獲取云數(shù)據(jù)庫(kù)引用
const db = wx.cloud.database();
const admin = db.collection('adminlist');
let name = null;
let password = null;

Page({

 /**
 * 頁(yè)面的初始數(shù)據(jù)
 */
 data: {

 },
 //輸入用戶名
 inputName: function (event) {
 name = event.detail.detail.value
 },
 //輸入密碼
 inputPassword(event) {
 password = event.detail.detail.value
 },
 //登陸
 login(){
 let that = this;
 //登陸獲取用戶信息
 admin.get({
 success:(res)=>{
 let user = res.data;
 // console.log(res.data);
 for (let i = 0; i < user.length; i++) { //遍歷數(shù)據(jù)庫(kù)對(duì)象集合
 if (name === user[i].name) { //用戶名存在
 if (password !== user[i].password) { //判斷密碼是否正確
 wx.showToast({
 title: '密碼錯(cuò)誤??！',
 icon: 'success',
 duration: 2500
 })
 } else {
 console.log('登陸成功！')
 wx.showToast({
 title: '登陸成功??！',
 icon: 'success',
 duration: 2500
 })
 wx.switchTab({ //跳轉(zhuǎn)首頁(yè)
 url: '/pages/shopcart/shopcart', //這里的URL是你登錄完成后跳轉(zhuǎn)的界面
 })
 }
 }else{ //不存在
 wx.showToast({
 title: '無(wú)此用戶名??！',
 icon: 'success',
 duration: 2500
 })
 }
 }
 }
 })
 },


 register(){
 wx.navigateTo({
 url: '/pages/register/index'
 })
 },

 /**
 * 生命周期函數(shù)--監(jiān)聽頁(yè)面加載
 */
 onLoad: function (options) {

 },

 /**
 * 生命周期函數(shù)--監(jiān)聽頁(yè)面初次渲染完成
 * 頁(yè)面初次渲染完成時(shí)觸發(fā)。一個(gè)頁(yè)面只會(huì)調(diào)用一次，代表頁(yè)面已經(jīng)準(zhǔn)備妥當(dāng)，可以和視圖層進(jìn)行交互
 */
 onReady: function () {

 },

 /**
 * 生命周期函數(shù)--監(jiān)聽頁(yè)面顯示
 * 頁(yè)面顯示/切入前臺(tái)時(shí)觸發(fā)
 */
 onShow: function () {

 },

 /**
 * 生命周期函數(shù)--監(jiān)聽頁(yè)面隱藏
 */
 onHide: function () {

 },

 /**
 * 生命周期函數(shù)--監(jiān)聽頁(yè)面卸載
 */
 onUnload: function () {

 },

 /**
 * 頁(yè)面相關(guān)事件處理函數(shù)--監(jiān)聽用戶下拉動(dòng)作
 */
 onPullDownRefresh: function () {

 },

 /**
 * 頁(yè)面上拉觸底事件的處理函數(shù)
 */
 onReachBottom: function () {

 },

 /**
 * 用戶點(diǎn)擊右上角分享
 */
 onShareAppMessage: function () {

 }
})