微信小程序的表单验证

原创

Herio 2022-01-21 09:50:20 ©著作权

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微信小程序的表单验证

需要用到一个插件WxValidat.js

传送门

在需要使用的page js文件下导入

import WxValidate from '../../utils/WxValidate.js'

主要内容
WXML内容

<form bindsubmit="formSubmit">
  <view class="weui-cells__title">用户名</view>
<view class="weui-cells weui-cells_after-title">
  <view class="weui-cell weui-cell_input">
   <input  class="weui-input" type="text" name="userName" placeholder="请输入用户名"/>
  </view>
</view>
  <view class="weui-cells__title">密码</view>
<view class="weui-cells weui-cells_after-title">
  <view class="weui-cell weui-cell_input">
   <input  class="weui-input" type="text" name="password" placeholder="请输入密码"/>
  </view>
</view>
  <view class="weui-cells__title">手机号</view>
<view class="weui-cells weui-cells_after-title">
  <view class="weui-cell weui-cell_input">
   <input  class="weui-input" type="text" name="phone" placeholder="请输入手机号"/>
  </view>
</view>
  <view class="btn-area">
    <button formType="submit">Submit</button>
    <button formType="reset">Reset</button>
  </view>
</form>

js内容

/**
   * 生命周期函数--监听页面加载
   */
 onLoad: function (options) {
     this.initValidate()//验证规则函数,初始化字段规则和字段提示信息
   },

   initValidate() {
     const rules = {
       userName: {   //用户名
         required: true,  
         minlength:2 
       },
       password: {   //密码
         required: true
       },
       phone:{ //手机号
         required:true,
         tel:true
       }
     }
     const messages = { //提示信息
       userName: {
         required: '请填写姓名',
         minlength:'请输入正确的名称'
       },
       password: {
         required: '请填写密码'
       },
       phone:{
         required:'请填写手机号',
         tel:'请填写正确的手机号'
       }
     }
     this.WxValidate = new WxValidate(rules, messages)
   },
   //调用验证函数
   formSubmit: function (e) {
     console.log('form发生了submit事件，携带的数据为：', e.detail.value)
     const params = e.detail.value
     //校验表单
     if (!this.WxValidate.checkForm(params)) {
       const error = this.WxValidate.errorList[0]
       console.log(error);
       return false
     }
     console.log("yes");
     return true;
   },