详解小程序之简单登录注册表单验证

function regexConfig() {
 var reg = {
  userid: /^[A-Za-z0-9]+$/, //邮箱正则验证
  phone: /^1(3|4|5|7|8)\d{9}$/, //手机号正则验证
  cards: /^[\u4e00-\u9fa5]{2,4}$/ //姓名汉字正则验证
 }
 return reg;
}

module.exports = {
 formatTime: formatTime,
 regexConfig: regexConfig
}

<form bindsubmit="formSubmit">
  <view class="input-area">
   <view class="input-log"> 
    <image class="userinfo-logIcon" src="{{logIcon}}"></image> 
    <input id="username" name="username" maxlength='4' type="text" placeholder="姓名" />
   </view>
   <view class="input-log">
    <image class="userinfo-logIcon" src="{{pwdIcon}}"></image> 
    <input id="password" name="password" type="number" maxlength="11" placeholder="手机号" />
   </view>
  </view>
  <view class="btn-area">
    <button open-type="getUserInfo" lang="zh_CN" bindgetuserinfo="onGotUserInfo" disabled="{{disabled}}" style="background-color:{{loginBtnBgBgColor}}" formType="submit" loading="{{btnLoading}}"> {{loginBtnTxt}} </button>
  </view>
</form>
<text class='tips' style=''>注意：只有在职人员方可登录</text>

var util = require("../../utils/util.js");
var myMessage="";
Page({
 data:{
  loginBtnTxt:"登录",
  myMessage:"",
  loginBtnBgBgColor:"#0099FF",
  btnLoading:false,
  disabled:false,
  inputUserName: '',
  inputPassword: '',
  avatarUrl:"../../images/logo.jpg",
  logIcon:"../../images/logIcon.png",
  pwdIcon:"../../images/pwdIcon.png",
  curNav: 1,
  curIndex: 0
 },
 
 onLoad:function(options){
  // 页面初始化 options为页面跳转所带来的参数
  wx.clearStorageSync();  //清除缓存
 },
 formSubmit:function(e){ //form提交内容 对登录信息做判断
  var param = e.detail.value;
  this.mysubmit(param);
  console.log("登录页提交",param)
  

 },
 mysubmit:function (param){  //验证帐号密码输入信息完整度
  var flag = this.checkUserName(param) && this.checkPassword(param);
  console.log('信息填写',flag)
  if(flag){
    this.setLoginData1();
    this.checkUserInfo(param);
  } 
 },
 setLoginData1:function(){ //登录态提示
  this.setData({
   loginBtnTxt:"登录中",
   disabled: !this.data.disabled,
   loginBtnBgBgColor:"#999",
   btnLoading:!this.data.btnLoading
  });
 },
 setLoginData2:function(){
  this.setData({
   loginBtnTxt:"登录",
   disabled: !this.data.disabled, 
   loginBtnBgBgColor:"#0099FF",
   btnLoading:!this.data.btnLoading
  });
 },
 checkUserName:function(param){
  var userid = util.regexConfig().cards; //姓名正则检验
  var inputUserName = param.username.trim(); //输入信息确认
  var wellname = param.username.length; //字符长度确认
  console.log(inputUserName, wellname)
  if (userid.test(inputUserName) ){ //xxx.test是检测函数。
   return true;
  }else{
   wx.showModal({
    title: '提示',
    showCancel:false,
    content: '姓名输入错误'
   });
   return false;
  }
 },
 checkPassword:function(param){
  var phone = util.regexConfig().phone; //校验手机号
  var inputPassword = param.password.trim(); //核对输入手机号
  var password = param.password.length;
  if (phone.test(inputPassword) && password == 11 ){ //验证手机号格式及长度
   return true;
  }else{
   wx.showModal({
    title: '提示',
    showCancel: false,
    content: '手机号输入错误'
   });
   return false;
  }
 },
 checkUserInfo:function(param){
  var username = param.username.trim();
  var password = param.password.trim();
  var goodname = param.username;  //提取帐号
  var goodpass = param.password;  //提取密码
  var that = this;
  if (username == goodname && password == goodpass){ //无需存贮，只为验证
    setTimeout(function(){
     wx.showToast({
      title: '',
      icon: 'success',
      duration: 1500
     });
     that.setLoginData2();
     that.redirectTo(param);
    },2000);
  }else{
   wx.showModal({
    title: '提示',
    showCancel:false,
    content: '信息有误，请重新输入'
   });
   this.setLoginData2();
  }
 },
 redirectTo:function(param){
  //需要将param转换为字符串
  param = JSON.stringify(param);
  wx.redirectTo({
   url: '../main/index?param='+ param//参数只能是字符串形式，不能为json对象
  })
 },
 onGotUserInfo: function (e) { //授权过后不再调起
   // console.log(e.detail.errMsg)
   console.log(e.detail.userInfo)
  var tip = e.detail.userInfo;
  if (tip == undefined){
   wx.redirectTo({
    url: '../login/index',
   })
  }else{
   wx.setStorage({  //存储数据并准备发送给下一页使用
    key: "myMessage",
    data: e.detail.userInfo,
   })
  }
 },
 
})