微信小程序云开发实现增删改查功能

编程学习 2021-07-04 15:50www.dzhlxh.cn编程入门
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的下修改狼蚁网站SEO优化三个文件

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 class="container">
 <view class='box' style='background:#FFFFFF'>
  <label>姓名:</label>
  <input data-value='{{inpVal}}' bindinput='getName' value='{{inpVal}}'></input>
 </view>
 <view class='box' style='background:#FFFFFF;margin-top:1rpx;'>
  <label>年龄:</label>
  <input data-value='{{inpVal}}' bindinput='getAge' value='{{inp2Val}}'></input>
 </view>
  <view class='box' style='background:#FFFFFF;margin-top:10rpx;'>
 <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 class='infoMsg'>
 <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: ellipsis;
 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狼蚁SEO。

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