微信小程序如何运营_微信小程序云开发完成增删

日期:2021-01-07 类型:科技新闻 

关键词:学生个人网页制作代码,如何做网页或网站,网页游戏制作,dw网页设计作业,动态网页

微信小程序云开发实现增删改查功能       这篇文章主要为大家详细介绍了微信小程序云开发实现增删改查功能,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

本文实例为大家分享了微信小程序云开发实现增删改查的具体代码,供大家参考,具体内容如下

首先按照微信小程序官方提示创建一个快速云开发小程序

大家可以点击此处下载

实现效果如下:

在miniprogram- index的下修改下面三个文件

index.js如下:

Page({
 data: {
 id: '',//修改用来保存_id
 iSshow: true,
 inpVal: '',
 inp2Val: '',
 inp3Val: '',
 list: []
 onLoad: function () {
 var that = this
 that.getUserMsg()//读取信息
 //获取文本框内容
 getName(e) {
 this.setData({
 inpVal: e.detail.value
 getAge(e) {
 this.setData({
 inp2Val: e.detail.value
 getCreated(e) {
 this.setData({
 inp3Val: e.detail.value
 //获取信息
 getUserMsg() {
 var that = this
 const db = wx.cloud.database()
 db.collection('datalist').get({
 success: function (res) {
 console.log(res)
 that.setData({
 list: res.data
 //添加信息
 setUserMsg() {
 var that = this
 const db = wx.cloud.database()
 db.collection('datalist').add({
 data: {
 name: that.data.inpVal,
 age: that.data.inp2Val,
 created: that.data.inp3Val
 success: function (res) {
 console.log(res)
 that.setData({
 inpVal: "",
 inp2Val: "",
 inp3Val:""
 console.log(that.data.inpVal + '--' + that.data.inp2Val + '--' + that.data.inp2Val)
 that.getUserMsg()
 //删除信息
 delUserMsg(e) {
 var that = this
 const db = wx.cloud.database()
 var id = e.currentTarget.dataset.id
 db.collection('datalist').doc(id).remove({
 success: function (res) {
 console.log(res)
 that.getUserMsg()
 //修改回显
 changeMsg(e) {
 var that = this
 var id = e.currentTarget.dataset.id
 const db = wx.cloud.database()
 db.collection('datalist').doc(id).get({
 success: function (res) {
 that.setData({
 inpVal: res.data.name,
 inp2Val: res.data.age,
 inp3Val:res.data.created,
 show: false,
 id: res.data._id
 //更新提交
 updetMsg(e) {
 var that = this
 var id = e.currentTarget.dataset.id
 const db = wx.cloud.database()
 db.collection('datalist').doc(id).update({
 data: {
 name: that.data.inpVal,
 age: that.data.inp2Val,
 created:that.data.inp3Val
 success: function (res) {
 that.getUserMsg()
 that.setData({
 inpVal: '',
 inp2Val: '',
 inp3Val:'',
 show: true

index.wxml如下:

 view 
 view 
 label 姓名: /label 
 input data-value='{{inpVal}}' bindinput='getName' value='{{inpVal}}' /input 
 /view 
 view 
 label 年龄: /label 
 input data-value='{{inpVal}}' bindinput='getAge' value='{{inp2Val}}' /input 
 /view 
 view 
 label 手机号: /label 
 input data-value='{{inpVal}}' bindinput='getCreated' value='{{inp3Val}}' /input 
 /view 
 button wx:if='{{show}}' bindtap='setUserMsg' 提交 /button 
 button wx:if="{{!show}}" data-id="{{id}}" bindtap='updetMsg' 确认修改 /button 
 /view 
 view 
 view 
 label 姓名 /label 
 label 年龄 /label 
 label 手机号 /label 
 label 操作 /label 
 /view 
 view wx:for="{{list}}" 
 label {{item.name}} /label 
 label {{item.age}} /label 
 label {{item.created}} /label 
 label 
 text data-id='{{item._id}}' bindtap='changeMsg' 修改 /text 
 /label 
 /view 
 /view 

index.wxss如下:

page {
 background: #f6f6f6;
 display: flex;
 flex-direction: column;
 justify-content: flex-start;
 font-size: 30rpx;
.box{
 width: 90%;
 display: flex;
 background: grey
button{
 width: 90%;
 height: 40px;
 line-height: 40px;
 margin-top: 20rpx;
 background:#ffffff;
.infoMsg{
 width: 90%;
 margin: auto;
 margin-top: 20rpx;
 border: 1rpx solid #e2e2e2;
 font-size: 28rpx;
.infoMsg view{
 display: flex;
 border-top: 1rpx solid #e2e2e2;
.infoMsg view label{
 flex: 1;
 height: 80rpx;
 line-height: 80rpx;
 text-align: center;
 overflow: hidden;
 text-overflow: elli凡科抠图is;
 white-space: nowrap;
.infoMsg view label:not(:first-child){
 border-left: 1rpx solid #e2e2e2;
.infoMsg view label text{
 margin-right: 10rpx;
 border: 1rpx solid #e2e2e2;
}

数据集合如下图:

大家可以点击此处下载 ,有问题可以评论交流!

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持凡科。