UNIAPP实战项目笔记51 登录用户名和密码输入框的数据验证功能

旧城等待， 2024-03-30 08:53 52阅读 0赞

### UNIAPP实战项目笔记51 登录账号用户名和密码输入框的数据验证功能 ###

#### 实际案例图片 ####

> 账号验证

![05cbc0f628e542d0a9ec9477411e0573.png][]

> 密码验证

![>][c0a7f80dd0ee4bd4a1bc4e20787795c1.png]

> 登录成功跳转

![77718d8a9e6e46a1a12fab037d59c42a.png][]

显示登录和注册页面布局 账号密码的验证功能和登录验证提交

> 具体内容图片自己替换哈，随便找了个图片的做示例  
> 具体位置见目录结构  
> 完善布局页面和样式

#### 代码 login.vue页面 ####

<template>
        <view class="login">
            <swiper vertical="true" style="height: 100vh;">
                <swiper-item>
                    <scroll-view>
                        <view class="login-tel">
                            <view class="tel-main">
                                <view class="close" @tap="goBack">
                                    <image class="close-img" src="../../static/img/close-bold.png" mode=""></image>
                                </view>
                                <view class="logo">
                                    <image class="logo-img" src="../../static/logo.png" mode=""></image>
                                </view>
                                <view class="tel">手机号注册</view>
                                <LoginOther></LoginOther>
                                <view class="login-go">
                                    <view class="">已有账号,去登录</view>
                                    <image src="../../static/img/arrow-down.png" mode=""></image>
                                </view>
                            </view>
                        </view>
                    </scroll-view>
                </swiper-item>
                <swiper-item>
                    <scroll-view>
                        <view class="login-tel">
                            <view class="tel-main">
                                <view class="close close-center">
                                    <view class="" @tap="goBack">
                                        <image class="close-img" src="../../static/img/close-bold.png" mode=""></image>
                                    </view>
                                    <view class="login-go">
                                        <image class="close-img" src="../../static/img/up.png" mode=""></image>
                                        <view class="">没账号,去注册</view>
                                    </view>
                                    <view class=""></view>
                                </view>
                                <view class="login-form">
                                    <view class="login-user">
                                        <text class='user-text'>账号</text>
                                        <input type="text" v-model="userName" value="" placeholder="请输入手机号/昵称"/>
                                    </view>
                                    <view class="login-user">
                                        <text class='user-text'>密码</text>
                                        <input type="safe-password" v-model="userPwd" value="" placeholder="6-16位字符"/>
                                    </view>
                                </view>
                                <view class="login-quick">
                                    <view class="">忘记密码</view>
                                    <view class="">免密登录</view>
                                </view>
                                <view class="tel" @tap="submit">登录</view>
                                <view class="reminder">温馨提示,您可以选择免密登录,更加方便</view>
                                <LoginOther></LoginOther>
                            </view>
                        </view>
                    </scroll-view>
                </swiper-item>
            </swiper>
            
            
            
        </view>
    </template>
    
    <script>
        import LoginOther from '@/components/login/login-other.vue'
        export default {
        
            data() {
        
                return {
        
                    userName:"",
                    userPwd:"",
                    rules:{
        
                        userName:{
        
                            rule:/\S/,
                            msg:"账号不能为空 "
                        },
                        userPwd:{
        
                            rule:/^[0-9a-zA-Z]{6,16}$/,
                            msg:"密码应该为6-16位字符"
                        }
                    }
                };
            },
            components:{
        
                LoginOther
            },
            methods:{
        
                 goBack(){
        
                     uni.navigateBack();
                 },
                 submit(){
        
                     if( !this.validate('userName') ) return ;
                     if( !this.validate('userPwd') ) return ;
                     
                     uni.showLoading({
        
                         title:"登录中..."
                     });
                     setTimeout(()=>{
        
                         uni.hideLoading();
                         uni.navigateBack();
                     },2000)
                 },
                 validate(key){
        
                     let bool = true;
                     if( !this.rules[key].rule.test(this[key]) ){
        
                         uni.showToast({
        
                             title:this.rules[key].msg,
                             icon:'none'
                         });
                         bool = false;
                         return false;
                     }
                     return bool;
                 }
            }
        }
    </script>
    
    <style lang="scss">
    .login-tel{
        
        width: 100vw;
        height: 100vh;
    }
    .tel-main{
        
        padding: 0 20rpx;
    }
    .close{
        
        padding: 120rpx 0;
    }
    .close-img{
        
        width: 60rpx;
        height: 60rpx;
    }
    .logo{
        
        padding: 0 100rpx;
        padding-bottom: 100rpx;
        display: flex;
        justify-content: center;
        
    }
    .logo-img{
        
        width: 200rpx;
        height: 200rpx;
    }
    .tel{
        
        width: 100%;
        height: 80rpx;
        line-height: 80rpx;
        text-align: center;
        color: #fff;
        background-color: #40bde8;
        border-radius: 40rpx;
    }
    
    
    .login-go{
        
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .login-go image{
        
        width: 60rpx;
        height: 60rpx;
    }
    
    // 第二屏
    .close-center{
        
        display: flex;
    }
    .close-center >view{
        
        flex: 1;
    }
    .login-form{
        
        padding-top: 100rpx;
    }
    .login-user{
        
        font-size: 40rpx;
        padding: 10rpx 0 ;
        display: flex;
        align-items: center;
        border-bottom: 2rpx solid #f7f7f7;
    }
    .user-text{
        
        padding-right: 10rpx;
    }
    .login-quick{
        
        display: flex;
        padding: 20rpx 0;
        justify-content: space-between;
    }
    .reminder{
        
        color: #ccc;
        font-size: 32rpx;
        padding: 20rpx 0;
        text-align: center;
    }
    </style>

#### 目录结构 ####

##### 前端目录结构 #####

*  manifest.json 配置文件： appid、logo…
 *  pages.json 配置文件： 导航、 tabbar、 路由
 *  
 *  main.js vue初始化入口文件
 *  App.vue 全局配置：样式、全局监视
 *  static 静态资源：图片、字体图标
 *  page 页面
    
     *  index
        
         *  index.vue
     *  list
        
         *  list.vue
     *  my
        
         *  my.vue
     *  my-config
        
         *  my-config.vue
     *  my-config
        
         *  my-config.vue
     *  my-add-path
        
         *  my-add-path.vue
     *  my-path-list
        
         *  my-path-list.vue
     *  search
        
         *  search.vue
     *  search-list
        
         *  search-list.vue
     *  shopcart
        
         *  shopcart.vue
     *  details
        
         *  details.vue
     *  my-order
        
         *  my-order.vue
     *  confirm-order
        
         *  confirm-order.vue
     *  payment
        
         *  payment.vue
     *  payment-success
        
         *  payment-success.vue
     *  login
        
         *  `login.vue`
 *  components 组件
    
     *  index
        
         *  Banner.vue
         *  Hot.vue
         *  Icons.vue
         *  indexSwiper.vue
         *  Recommend.vue
         *  Shop.vue
     *  common
        
         *  Card.vue
         *  Commondity.vue
         *  CommondityList.vue
         *  Line.vue
         *  ShopList.vue
     *  order
        
         *  order-list.vue
     *  uni
        
         *  uni-number-box
            
             *  uni-number-box.vue
         *  uni-icons
            
             *  uni-icons.vue
         *  uni-nav-bar
            
             *  uni-nav-bar.vue
         *  mpvue-citypicker
            
             *  mpvueCityPicker.vue
 *  common 公共文件：全局css文件 || 全局js文件
    
     *  api
        
         *  request.js
     *  common.css
     *  uni.css
 *  store vuex状态机文件
    
     *  modules
        
         *  cart.js
         *  path.js
     *  index.js

[05cbc0f628e542d0a9ec9477411e0573.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/30/7159790c680f4ea18a03b2e3bbf95dc9.png
[c0a7f80dd0ee4bd4a1bc4e20787795c1.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/30/d9901989a94d4da092d316b74905f0cf.png
[77718d8a9e6e46a1a12fab037d59c42a.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/30/240e716541024aa0a1beefce81a22029.png