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微信小程序判断手机号是否合法的实例代码

作者:喵喵喵喵要抱抱

我们在微信小程序开发的时候,手机号的验证是经常需要操作的,那么如何验证手机号呢?这篇文章主要给大家介绍了关于微信小程序判断手机号是否合法的相关资料,需要的朋友可以参考下

场景

在注册页面输入手机号,在请求注册接口前先行判别输入的手机号码是否合法;

效果

代码

导入 vant-weapp 组件:user-register.json

{
  "usingComponents": {
  	"van-cell-group": "@vant/weapp/cell-group/index",
  	"van-field": "@vant/weapp/field/index",
  	"van-dropdown-menu": "@vant/weapp/dropdown-menu/index",
  	"van-dropdown-item": "@vant/weapp/dropdown-item/index",
  	"van-button": "@vant/weapp/button/index"
  }
}

编写布局文件:user-register.wxml

<!-- pages/user-register/user-register.wxml -->
<view class="register-block">
  <view class="title">
    <text class="text">注册</text>
  </view>
  <van-cell-group class="input">
    <van-field label="学号" value="{{ studentNumber }}" placeholder="请输入学号" required clearable center bind:blur="setStudentNumber" />
    <van-field label="用户名" value="{{ userName }}" placeholder="请输入用户名" required clearable center bind:blur="setUsername" />
    <van-field label="班级" value="{{ className }}" placeholder="请输入所在班级" required clearable center bind:blur="setClassName" />
    <van-field label="手机号" value="{{ phoneNumber }}" placeholder="请输入手机号" error="{{ phoneLength || phoneFormat }}" error-message="{{ phoneError }}" required clearable center bind:blur="setphoneNumber" />
    <van-field label="性别" required use-input-slot>
      <view style="position: absolute; left: -16rpx;" slot="input">
        <van-dropdown-menu active-color="#92B6D5">
          <van-dropdown-item value="{{ gender }}" options="{{ option1 }}" bind:change="changeGender" />
        </van-dropdown-menu>
      </view>
    </van-field>
    <van-field label="校区" required use-input-slot>
      <view style="position: absolute; left: -16rpx;" slot="input">
        <van-dropdown-menu active-color="#92B6D5">
          <van-dropdown-item value="{{ area }}" options="{{ option2 }}" bind:change="changeArea" />
        </van-dropdown-menu>
      </view>
    </van-field>
    <van-field label="密码" value="{{ password }}" placeholder="请输入密码" required clearable center type="password" bind:blur="setPassword" />
    <van-field label="确认密码" value="{{ repassword }}" placeholder="请再次输入密码" error="{{ rePwdEqual }}" error-message="{{ errorMsg }}" required clearable center type="password" bind:blur="setRePassword" />
  </van-cell-group>
  <view class="login-block">
    <text class="text" bind:tap="gotoLogin">立即登录</text>
    <!-- <text class="">忘记密码</text> -->
  </view>
  <van-button class="btn" size="large" type="info" bind:tap="userRegister">注册</van-button>
</view>

编写样式文件:user-register.scss

/* pages/user-register/user-register.scss */
.register-block{
  margin: 200rpx 20rpx 0 20rpx;

  .title{
    text-align: center;
    margin-bottom: 60rpx;

    .text{
      font-size: 60rpx;
      font-weight: 300;
    }
  }

  .login-block{
    text-align: right;
    margin: 10rpx 0;

    .text{
      color: gray;
      font-weight: 300;
      font-size: smaller;
    }
  }
}

判断手机号是否合法

  /**
   * 输入手机号
   */
  setphoneNumber: function (event) {
    // console.log('username', event.detail.value)
    this.setData({
      phoneNumber: event.detail.value
    })
    const regex = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1})|(17[0-9]{1}))+\d{8})$/
    if (this.data.phoneNumber.length !== 0 && this.data.phoneNumber.length !== 11) {
      this.setData({
        phoneLength: true,
        phoneError: '手机长度有误'
      })
    } else if (this.data.phoneNumber.length !== 0 && !regex .test(this.data.phoneNumber)) {
      this.setData({
        phoneFormat: true,
        phoneError: '手机号有误'
      })
    }
  },

完整js文件:user-register.js

// pages/user-login/user-login.js

Page({
  /**
   * 页面的初始数据
   */
  data: {
    studentNumber: '',
    userName: '',
    className: '',
    phoneNumber: '',
    mygender: '',
    schoolarea: '',
    password: '',
    repassword: '',
    gender: 0,
    option1: [
      { text: '请选择性别', value: 0 },
      { text: '男', value: 1 },
      { text: '女', value: 2 }
    ],
    area: 0,
    option2: [
      { text: '请选择所在校区', value: 0 },
      { text: '北校区', value: 1 },
      { text: '南校区', value: 2 }
    ],
    // 错误提示
    rePwdEqual: false,
    phoneLength: false,
    phoneFormat: false
  },

  /**
   * 输入学号
   */
  setStudentNumber: function (event) {
    // console.log('username', event.detail.value)
    this.setData({
      studentNumber: event.detail.value
    })
  },

  /**
   * 输入用户名
   */
  setUsername: function (event) {
    // console.log('username', event.detail.value)
    this.setData({
      userName: event.detail.value
    })
  },

  /**
   * 输入所在班级
   */
  setClassName: function (event) {
    // console.log('username', event.detail.value)
    this.setData({
      className: event.detail.value
    })
  },

  /**
   * 输入手机号
   */
  setphoneNumber: function (event) {
    // console.log('username', event.detail.value)
    this.setData({
      phoneNumber: event.detail.value
    })
    const myReg = /^(((13[0-9{1})|(15[0-9]{1})|(18[0-9]{1})|(17[0-9]{1})) + \d{8})$/
    if (this.data.phoneNumber.length !== 0 && this.data.phoneNumber.length !== 11) {
      this.setData({
        phoneLength: true,
        phoneError: '手机长度有误'
      })
    } else if (this.data.phoneNumber.length !== 0 && !myReg.test(this.data.phoneNumber)) {
      this.setData({
        phoneFormat: true,
        phoneError: '手机号有误'
      })
    }
  },

  /**
   * 修改性别
   * @param {*} event
   */
  changeGender: function (event) {
    if (event.detail === 1) {
      this.setData({
        mygender: '男'
      })
    } else if (event.detail === 2) {
      this.setData({
        mygender: '女'
      })
    } else if (event.detail === 0) {
      wx.showToast({
        title: '请选择性别', // 提示的内容
        duration: 2000, // 延迟时间
        mask: true // 显示透明蒙层,防止触摸穿透
      })
    }
    console.log('改性别', event.detail + this.data.mygender)
  },

  /**
   * 修改所在校区
   */
  changeArea: function (event) {
    if (event.detail === 1) {
      this.setData({
        schoolarea: '北校区'
      })
    } else if (event.detail === 2) {
      this.setData({
        schoolarea: '南校区'
      })
    } else if (event.detail === 0) {
      wx.showToast({
        title: '请选择所在校区', // 提示的内容
        duration: 2000, // 延迟时间
        mask: true // 显示透明蒙层,防止触摸穿透
      })
    }
    console.log('改校区', event.detail + this.data.schoolarea)
  },

  /**
   * 输入密码
   */
  setPassword: function (event) {
    // console.log('password', event.detail.value)
    this.setData({
      password: event.detail.value
    })
  },

  /**
   * 再次输入密码
   */
  setRePassword: function (event) {
    // console.log('repassword', event.detail.value)
    this.setData({
      repassword: event.detail.value
    })
    if (this.data.password === this.data.repassword && this.data.password.length !== 0) {
      this.setData({
        rePwdEqual: false,
        errorMsg: ''
      })
    } else if (this.data.password !== this.data.repassword && this.data.password.length !== 0) {
      this.setData({
        rePwdEqual: true,
        errorMsg: '两次输入的密码不一致'
      })
    }
  },

  /**
   * 进入登录界面
   */
  gotoLogin: function () {
    // 当前要跳转到另一个界面,但是会保留现有界面
    wx.redirectTo({
      url: '../user-login/user-login'
    })
  },

  /**
   * 请求注册
   */
  userRegister: function () {
    // console.log('studentNumber', this.data.studentNumber)
    // console.log('userName', this.data.userName)
    // console.log('className', this.data.className)
    // console.log('phoneNumber', this.data.phoneNumber)
    // console.log('mygender', this.data.mygender)
    // console.log('schoolarea', this.data.schoolarea)
    const existStudentNumber = this.data.studentNumber.length !== 0
    const existUserName = this.data.userName.length !== 0
    const existClassName = this.data.className.length !== 0
    const existPhoneNumber = this.data.phoneNumber.length !== 0
    const existGender = this.data.mygender.length !== 0
    const existArea = this.data.schoolarea.length !== 0
    // console.log('studentNumber', existStudentNumber)
    // console.log('userName', existUserName)
    // console.log('className', existClassName)
    // console.log('phoneNumber', existPhoneNumber)
    // console.log('mygender', existGender)
    // console.log('schoolarea', existArea)
    if (existStudentNumber && existUserName && existClassName && existPhoneNumber && existGender && existArea && !this.data.rePwdEqual && !this.data.phoneLength && !this.data.phoneFormat) {
      if (this.data.password === this.data.repassword && this.data.password !== '') {
        // 发起网络请求
        wx.request({
          url: 'http://api/user/register',
          method: 'post',
          data: {
            student_number: this.data.studentNumber,
            class_name: this.data.className,
            name: this.data.userName,
            phone_number: this.data.phoneNumber,
            gender: this.data.mygender,
            area: this.data.schoolarea,
            password: this.data.password,
            second_password: this.data.repassword
          },
          header: {
            'content-type': 'application/x-www-form-urlencoded'
          },
          success(res) {
            console.log(res)
            if (res.data.code === 200) {
              wx.showToast({
                title: '注册成功!',
                icon: 'success'
              })
              wx.redirectTo({
                url: '/pages/user-login/user-login'
              })
            } else {
              wx.showToast({
                title: '注册失败!',
                icon: 'none'
              })
              console.log('注册失败!')
              console.log(res)
            }
          },
          fail(msg) {
            console.log(msg)
          }
        })
      }
    } else if (!existStudentNumber) {
      wx.showToast({
        title: '学号不能为空!',
        icon: 'none'
      })
    } else if (!existUserName) {
      wx.showToast({
        title: '用户名不能为空!',
        icon: 'none'
      })
    } else if (!existClassName) {
      wx.showToast({
        title: '班级不能为空!',
        icon: 'none'
      })
    } else if (!existPhoneNumber) {
      wx.showToast({
        title: '手机号不能为空!',
        icon: 'none'
      })
    } else if (!existGender) {
      wx.showToast({
        title: '请选择性别!',
        icon: 'none'
      })
    } else if (!existArea) {
      wx.showToast({
        title: '请选择所在校区!',
        icon: 'none'
      })
    } else {
      wx.showToast({
        title: '请按提示输入相关信息!',
        icon: 'none'
      })
    }
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {

  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {

  }
})

总结

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