Simple login page of WeChat applet (with source code)
Article directory
1. Group chat (open source projects and technical exchanges)
2. Look at the effect
3. User does not exist
4. On the code
4.1login.wxml
<view class="v1" style="height:{
{clientHeight?clientHeight+'px':'auto'}}">
<!-- v2父容器 子view使用绝对布局 -->
<view class="v2">
<view class="dltext" style="width: 232rpx; height: 92rpx; display: block; box-sizing: border-box; left: 0rpx; top: -2rpx">登录</view>
<!-- 手机号 -->
<view class="phoneCs">
<!-- <image src="/images/zhang.png" class="ph"></image> -->
<input placeholder="请输入账号" type="number" bindinput="content" />
</view>
<!-- 密码 -->
<view class=passwordCs">
<!-- <image src="/images/mi.png" class="ps"></image> -->
<input placeholder="请输入密码" type="password" bindinput="password" />
</view>
<!-- 登录按钮 -->
<view class="denglu">
<button class="btn-dl" type="primary" bindtap="goadmin">登录</button>
</view>
</view>
</view>
4.2login.css
/* pages/login/login.wxss *//* 最大的父元素 */
.v1{
display: block;
position:absolute;
width: 100%;
background-color: rgb(250, 248, 248);
}
/* 白色区域 */
.v1 .v2{
position: relative;
margin-top: 150rpx;
left: 100rpx;
width: 545rpx;
height: 600rpx;
background-color: rgb(250, 248, 248);
border-radius: 50rpx;
}
/* 白色区域内的登录文本 */
.v1 .v2 .dltext{
margin-top: 50rpx;
position: absolute;
margin-left:50rpx;
width: 150rpx;
height: 100rpx;
font-size: 60rpx;
font-family: Helvetica;
color: #000000;
line-height: 100rpx;
letter-spacing: 2rpx;
}
/* 手机图片+输入框+下划线的父容器view */
.v1 .v2 .phoneCs{
margin-top: 200rpx;
margin-left: 25rpx;
position: absolute;
display: flex;
width:480rpx ;
height: 90rpx ;
background-color: white;
}
/* 手机图标 */
.v1 .v2 .phoneCs .ph{
margin-top: 5rpx;
margin-left: 30rpx;
width: 55rpx;
height: 55rpx;
}
/* 手机号输入框 */
.v1 .v2 .phoneCs input{
width: 400rpx;
font-size: 30rpx ;
margin-top: 25rpx;
margin-left: 30rpx;
}
/* 密码图标+输入框+小眼睛图标+下划线父容器view */
.v1 .v2 .passwordCs{
margin-top: 350rpx;
margin-left: 25rpx;
position: absolute;
display: flex;
width:480rpx ;
height: 90rpx ;
background-color: white;
}
/* 密码图标 */
.v1 .v2 .passwordCs .ps{
margin-top: 5rpx;
margin-left: 30rpx;
width: 55rpx;
height: 55rpx;
}
/* 眼睛 图标*/
.v1 .v2 .passwordCs .eye{
margin-top: 5rpx;
margin-left: 65rpx;
width: 55rpx;
height: 55rpx;
}
/* 密码输入框 */
.v1 .v2 .passwordCs input{
width: 400rpx;
font-size: 30rpx ;
margin-top: 25rpx;
margin-left: 30rpx;
}
/* 登录按钮容器view */
.v1 .v2 .denglu{
width: 480rpx;
height: 80rpx;
position: absolute;
margin-top:515rpx;
margin-left:25rpx;
}
/* 登录按钮 */
.v1 .v2 .denglu button{
padding: 0rpx;
line-height: 70rpx;
font-size: 30rpx;
width: 100%;
height: 100%;
border-radius: 5rpx;
}
4.3login.js
//index.js
//获取应用实例
const app = getApp()
let username=''
let password=''
Page({
data: {
username: '',
password: '',
clientHeight:''
},
onLoad(){
var that=this
wx.getSystemInfo({
success: function (res) {
console.log(res.windowHeight)
that.setData({
clientHeight:res.windowHeight
});
}
})
},
//协议
goxieyi(){
wx.navigateTo({
url: '/pages/oppoint/oppoint',
})
},
//获取输入款内容
content(e){
username=e.detail.value
},
password(e){
password=e.detail.value
},
//登录事件
goadmin(){
let flag = false //表示账户是否存在,false为初始值
if(username=='')
{
wx.showToast({
icon:'none',
title: '账号不能为空',
})
}else if(password==''){
wx.showToast({
icon:'none',
title: '密码不能为空',
})
}else{
wx.cloud.database().collection('adminShop')
.get({
success:(res)=>{
console.log(res.data)
let admin=res.data
for (let i = 0; i < admin.length; i++) {
//遍历数据库对象集合
if (username === admin[i].username) {
//账户已存在
flag=true;
if (password !== admin[i].password) {
//判断密码正确与否
wx.showToast({
//显示密码错误信息
title: '密码错误！！',
icon: 'error',
duration: 2500
});
break;
} else {
wx.showToast({
//显示登录成功信息
title: '登陆成功！！',
icon: 'success',
duration: 2500
})
flag=true;
wx.setStorageSync('admin', password)
wx.navigateTo({
url: '/pages/admin/admin',
})
break;
}
}
};
if(flag==false)//遍历完数据后发现没有该账户
{
wx.showToast({
title: '该用户不存在',
icon: 'error',
duration: 2500
})
}
}
})
}
},
})
5. Summary
The simplicity of the page of the applet can bring a good experience to the user.
When the user enters information, the logic layer traverses the data in the database through a for loop.
Well, that's it for today's sharing. Like it
