VeeValidate 的使用場景以及配置詳解

發布時間：2020-09-29 09:26:45 來源：腳本之家閱讀：197 作者：學無止境欄目：web開發

創建vue項目:

vue init webpack vee

cd ./vee 

npm run dev
 
# or
yarn run dev

安裝 VeeValidate

npm install vee-validate --save
# or
yarn add vee-validate --save

本文中使用的 VeeValidate 版本為 2.1.5

在 App.vue 中引入

import VeeValidate from 'vee-validate';

Vue.use(VeeValidate);

例子

第一個測試例子

<template>
 <div class="test1">
 <div>
  <input
  type="text"
  name="nickname"
  v-model="formData.nickname"
  v-validate="'required|min:3|max:10'"
  >
  <p>{{errors.first('nickname')}}</p>
 </div>
 <div>
  <button @click="handleSubmit">Submit</button>
 </div>
 </div>
</template>

<script>
 export default {
 name: "test1",
 data() {
  return {
  formData: {
   nickname: '',
   password: '',
  }
  }
 },
 methods: {
  handleSubmit() {
  this.$validator.validate()
   .then((valid) => {
   if (true === valid) {
    console.log('驗證通過');
   } else {
    console.log(this.$validator.errors.all());
   }
   })
  }
 }
 }
</script>

<style scoped lang="css">
 .test1 {
 width: 900px;
 margin: 0 auto;
 }
</style>

更多配置請參考官網!

我們只是用些常用配置和常用的驗證!

中文配置

全局配置

import VeeValidate, {Validator} from 'vee-validate';
import zh_CN from 'vee-validate/dist/locale/zh_CN';
Vue.use(VeeValidate, {
 dictionary: {
 zh_CN: zh_CN
 }
});
Validator.localize('zh_CN');

這樣就可以使用中文提示了!

自定義錯誤提示

<template>
 <div class="test2">
 <div><input type="text" v-model="formData.nickname" data-vv-name="nickname" v-validate="'required|min:3|max:10'">
 </div>
 <div>{{errors.first('nickname')}}</div>
 <div><input type="text" v-model="formData.password" data-vv-name="password" v-validate="'required|min:5|max:200'">
 </div>
 <div>{{errors.first('password')}}</div>
 <div>
  <button @click="handleSubmit">Submit</button>
 </div>
 </div>
</template>

<script>
 const validate = {
 custom: {
  nickname: {
  required: () => '昵稱不得為空', //寫法1
  min: "昵稱不得小于3個字符", //寫法2
  max: () => '昵稱不得大于10個字符'
  },
  password: {
  required: () => '密碼不得為空',
  min: "密碼不得小于5個字符",
  max: () => '密碼不得大于200個字符'
  }
 },
 };

 export default {
 name: "test2",
 data() {
  return {
  formData: {
   nickname: '',
   password: '',
  }
  }
 },
 methods: {
  handleSubmit() {
  this.$validator.validate()
   .then((valid) => {
   if (true === valid) {
    console.log('驗證通過');
   } else {
    console.log(this.$validator.errors.all());
   }
   })
  }
 },
 mounted() {
  this.$validator.localize('zh_CN', validate);
 }
 }
</script>

自定義驗證規則

<template>
 <div class="test2">
 <div><input type="text" v-model="formData.nickname" data-vv-name="nickname" v-validate="'required|min:3|max:10'">
 </div>
 <div>{{errors.first('nickname')}}</div>
 <div><input type="text" v-model="formData.password" data-vv-name="password" v-validate="'required|min:5|max:200'">
 </div>
 <div>{{errors.first('password')}}</div>
 <div><input type="text" v-model="formData.re_password" data-vv-name="re_password"
    v-validate="'required|confirm'">
 </div>
 <div>{{errors.first('re_password')}}</div>
 <div><input type="text" v-model="formData.mobile" data-vv-name="mobile" v-validate="'required|mobile'">
 </div>
 <div>{{errors.first('mobile')}}</div>
 <div>
  <button @click="handleSubmit">Submit</button>
 </div>
 </div>
</template>

<script>
 const validate = {
 custom: {
  nickname: {
  required: () => '昵稱不得為空', //寫法1
  min: "昵稱不得小于3個字符", //寫法2
  max: () => '昵稱不得大于10個字符'
  },
  password: {
  required: () => '密碼不得為空',
  min: "密碼不得小于5個字符",
  max: () => '密碼不得大于200個字符'
  },
  re_password: {
  required: () => '請再次輸入密碼!',
  },
  mobile: {
  required: () => '請輸入手機號碼!',
  }
 },
 };

 export default {
 name: "test3",
 data() {
  return {
  formData: {
   nickname: '',
   password: '',
   re_password: '',
   mobile: ''
  }
  }
 },
 methods: {
  handleSubmit() {
  this.$validator.validate()
   .then((valid) => {
   if (true === valid) {
    console.log('驗證通過');
   } else {
    console.log(this.$validator.errors.all());
   }
   })
  }
 },
 mounted() {
  this.$validator.localize('zh_CN', validate);
  this.$validator.extend('mobile', {
  getMessage: field => '手機號有誤',
  validate: value => {
   return /^((13|14|15|17|18)[0-9]{1}\d{8})$/.test(value)
  }
  })
  this.$validator.extend('confirm', {
  getMessage: field => '兩次密碼輸入不一致',
  validate: value => {
   return value === this.formData.password
  }
  })
 }
 }
</script>

顯示第一個錯誤!

有時候我們需要在彈出層中提示用戶所以要顯示第一個錯誤

this.$validator.errors.items[0].msg

例子發驗證碼和注冊!

這個例子中發驗證碼是一個驗證注冊又是一個驗證所以有點意義!

在發送驗證碼的時候需要驗證手機號碼和圖形驗證碼注冊的時候需要驗證除圖形驗證碼之外的數據

VeeValidate 的使用場景以及配置詳解

template

<template>
 <div class="reg">
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   name="mobile"
   data-vv-name="mobile"
   v-model="mobile"
   v-validate="'required|mobile'"
   placeholder="手機號碼"
  >
  </div>
  <div class="err">{{errors.first('mobile')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   v-model="img_captcha"
   name="img_captcha"
   placeholder="圖形驗證碼"
   v-validate="'required'"
  >
  </div>
  <div class="err">{{errors.first('img_captcha')}}</div>
 </div>
 <div class="form_item">
  <div class="input send_sms">
  <input
   type="text"
   v-validate="'required|length:6'"
   v-model="sms_captcha"
   name="sms_captcha"
   placeholder="短信驗證碼"
  >
  <button class="send_sms_btn" @click="handleSendSms">獲取驗證碼</button>
  </div>
  <div class="err">{{errors.first('sms_captcha')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   name="password"
   v-validate="'required|min:8'"
   v-model="password"
   placeholder="登錄密碼"
   ref="password"
  >
  </div>
  <div class="err">{{errors.first('password')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   name="re_password"
   v-validate="'required|confirmed:password'"
   v-model="re_password"
   placeholder="再次輸入登錄密碼"
  ></div>
  <div class="err">{{errors.first('re_password')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   name="nickname"
   v-validate="'required|min:3|max:10'"
   v-model="nickname"
   placeholder="請輸入昵稱"
  ></div>
  <div class="err">{{errors.first('nickname')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   name="id_card"
   v-validate="'required|id_card'"
   v-model="id_card"
   placeholder="請輸入身份證號碼"
  ></div>
  <div class="err">{{errors.first('id_card')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="date"
   name="birthday"
   v-validate="'required|date_format:YYYY-MM-DD'"
   v-model="birthday"
   placeholder="請輸入生日"
  ></div>
  <div class="err">{{errors.first('birthday')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   name="url"
   v-validate="'required|url'"
   v-model="url"
   placeholder="請輸入個人網址"
  ></div>
  <div class="err">{{errors.first('url')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   name="email"
   v-validate="'required|email'"
   v-model="email"
   placeholder="請輸入電子郵箱"
  ></div>
  <div class="err">{{errors.first('email')}}</div>
 </div>
 <div class="form_item">
  <div class="input">
  <input
   type="text"
   name="age"
   v-validate="'required|between:18,60'"
   v-model="age"
   placeholder="請輸入年齡"
  ></div>
  <div class="err">{{errors.first('age')}}</div>
 </div>
 <div class="form_item">
  <button class="reg_btn" @click="handleSubmit">注冊</button>
 </div>

 </div>
</template>

style 代碼(這個是隨便寫的原生css大家不要吐槽哈)

<style>
 .err {
 color: red;
 font-size: 12px;
 text-align: left;
 }

 .reg {
 width: 500px;
 margin: 0 auto;
 }

 .send_sms {
 position: relative;
 }

 .send_sms_btn {
 position: absolute;
 width: 100px;
 height: 30px;
 right: -11px;
 top: 2px;
 cursor: pointer;
 border: none;
 border-radius: 4px;
 background-color: #e4393c;
 outline: none;
 color: #fff;
 }

 .form_item {
 margin-bottom: 10px;
 width: 400px;
 }

 input {
 width: 400px;
 height: 30px;
 border: 1px solid #999;
 border-radius: 4px;
 outline: none;
 padding-left: 10px;
 }

 .reg_btn {
 width: 100px;
 height: 30px;
 border: none;
 border-radius: 4px;
 background-color: #e4393c;
 outline: none;
 cursor: pointer;
 color: #fff;
 }
</style>

<script>
 import {messages} from '../validate/reg'

 export default {
 name: "reg",
 data() {
  return {
  url: '',
  age: '',
  email: '',
  birthday: '',
  id_card: '',
  nickname: '',
  mobile: '',
  img_captcha: '',
  sms_captcha: '',
  password: '',
  re_password: '',
  }
 },
 mounted() {
  this.$validator.localize('zh_CN', messages);
  this.$validator.extend('mobile', {
  getMessage: field => '手機號有誤',
  validate: value => {
   return /^((13|14|15|17|18)[0-9]{1}\d{8})$/.test(value)
  }
  });
  this.$validator.extend('id_card', {
  getMessage: field => '身份證號碼格式有誤',
  validate: value => {
   return /(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/.test(value)
  }
  });
 },
 methods: {
  handleSubmit() {
  this.$validator.errors.clear();
  this.$validator.validateAll({
   mobile: this.mobile,
   password: this.password,
   sms_captcha: this.sms_captcha,
   re_password: this.re_password,
   url: this.url,
   age: this.age,
   email: this.email,
   birthday: this.birthday,
   id_card: this.id_card,
   nickname: this.nickname,
  }).then((valid) => {
   console.log(valid);
   if (true === valid) {
   console.log('驗證通過');
   } else {
   console.log(this.$validator.errors.all());
   }
  });
  },
  handleSendSms() {
  this.$validator.errors.clear();
  this.$validator.validateAll({
   mobile: this.mobile,
   img_captcha: this.img_captcha
  }).then((valid) => {
   console.log(valid);
   if (true === valid) {
   console.log('驗證通過');
   } else {
   console.log(this.$validator.errors.all());
   }
  });
  }
 }
 }
</script>

外部引入的js (自定義提示內容)

export const messages = {
 custom: {
 mobile: {
  required: () => '請輸入手機號碼!',
  mobile: () => '手機號碼有誤',
 },
 img_captcha: {
  required: () => '請輸入圖形驗證碼!',
 },
 sms_captcha: {
  required: () => '請輸短信驗證碼!',
  length: () => '短信驗證碼為6位數字'
 },
 password: {
  required: () => '密碼不得為空',
  min: () => '密碼不得小于8個字符',
 },
 re_password: {
  required: () => '請再次輸入密碼!',
  confirmed: () => '兩次密碼輸入不一致'
 },
 nickname: {
  required: () => '請輸入昵稱',
  min: () => '昵稱最小為3位字符',
  max: (field, params) => {
  return `昵稱最大為${params[0]}位字符`;
  }
 },
 id_card: {
  required: "身份證號碼不得為空"
 },
 birthday: {
  required: "請選擇出生日期",
  date_format: "出生日期有誤"
 },
 url: {
  required: () => "請輸入個人網址",
  url: () => "網址輸入有誤"
 },
 email: {
  required: () => "請輸入電子郵箱",
  email: () => "電子郵箱輸入有誤"
 },
 age: {
  required: () => "請輸入年齡",
  between: () => "年齡必須在18-60歲之間"
 }
 },
};

擴展內容

自定義錯誤信息中顯示配置驗證規則中的參數

export const messages = {
 custom: {
 nickname: {
  required: () => "請輸入年齡",
  between: (fiield,params) => `年齡必須在${params[0]}-${params[1]}歲之間"
 }
 },
};

規則里面第一個參數是字段名稱第二個參數是驗證規則后面的參數;

驗證指定字段

validateAll(field Object) 
validateAll({mobile:this.moble});

還可以使用 data-vv-scope 來指定但是該方法并不適用一些場景;

顯示錯誤信息的時候必須要指定scope的值不然不會顯示錯誤信息

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持億速云。

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