node+koa2+mysql+bootstrap搭建一个前端论坛(5)

<div class="sign">
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" title="关闭" class="login-close close">×</a>
 <div class="sign-title">
 <h1>用户注册</h1>
 <h3>来吧骚年们!</h3>
 </div>
 <form class="form signup" role="form">

  <div class="form-group">
  <input type="text" name="username" placeholder="账号不少于两个字符" class="form-control">
  </div>
 <div class="form-group">
  <input type="password" name="pass" class="pass form-control" placeholder="密码">
 </div>
 <div class="form-group">
  <input type="password" name="repeatpass" id="repeat" placeholder="重复密码" class="form-control">
 </div>
  <div class="form-group">
  <input type="button" value="注册" class="btn btn-primary login-up">
  </div>

 </form>
 <form class="form signin" role="form">
 <div class="form-group">
  <input type="text" name="username" placeholder="请输入用户名" class="form-control">
 </div>
 <div class="form-group">
  <input type="password" name="pass" class="pass form-control" placeholder="请输入密码">
 </div>
 <div class="form-group">
  <input type="button" value="登录" class="btn btn-primary login-in">
 </div>
 </form>
 <div class="form-tips">
 <span>已有账号？</span>
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="register">登录</a>
 </div>
</div>
<div class="login-form-mask"></div>
<script>
 // $(document).ready(function () {
 var $close = $('.login-close');
 var $sign = $('.sign');
 $close.click(function () {
  $sign.css("display","none");
 })

 var $register = $('.register'), //login/loginup切换
  $span = $('.form-tips span'),
  $signup = $('.signup'),
  $signTitle = $('.sign-title h1'),
  $signin = $('.signin');

 $register.click(function () {
  if($span.html() == "已有账号？"){

  $signin.css('display','block');
  $signup.css('display','none');
  $(this).html('注册');
  $span.html("没有账号？");
  $signTitle.html("欢迎登录");

  }else{

  $signin.css('display','none');
  $signup.css('display','block');
  $(this).html('登录');
  $span.html("已有账号？");
  $signTitle.html("欢迎注册");
  }
 })

 var $loginup = $('.loginup'); //点击登录/注册，阻止事件冒泡
 $loginup.click(function () {
  $mask.fadeIn(100);
  $sign.slideDown(200);
  return false;
 })

 var $close = $('.login-close'),
  $mask = $('.login-form-mask'),
  $sign = $('.sign');

 $sign.click(function () {
  return false;
 })

 $close.click(function (e) {
  // e.stopPropagation();
  fadeOut();

 })

 $(document).click(function (e) { //点击任意位置取消登录框
  //e.stopPropagation();
  fadeOut();
 })
 function fadeOut(){
  $mask.fadeOut(100);
  $sign.slideUp(200);
 }
 

 var loginUp = document.getElementsByClassName('login-up')[0],
 loginIn = document.getElementsByClassName('login-in')[0],
 signUp = document.getElementsByClassName('signup')[0],
 signIn = document.getElementsByClassName('signin')[0];

 
 
 loginUp.onclick = function () { //注册
 var data1 = 'username=' + signUp["username"].value + '&' + 'pass='+ signUp["pass"].value + '&' + 'repeatpass=' + signUp["repeatpass"].value;
 var reg = /^[\u4E00-\u9FA5]{2,5}$/;
 /* if(!reg.test(signUp["username"].value)){
  signUp["username"].classList.add("tips");
  signUp['username'].value()
 } */
 ajax('post','/signup',data1,"application/x-www-form-urlencoded");
 xhr.onreadystatechange = function () {
  if(xhr.readyState==4&&xhr.status>=200&&xhr.status<300){
  let text = JSON.parse(xhr.responseText).code; 
  console.log(text) //服务器返回的对象
  if(text == 3){
   fadeOut();
   alert("注册成功")
   setTimeout(()=>{
   window.location.reload();
  },1000)
  // document.getElementsByClassName('login')[0].outerHTML = "<li class='users'><a href='/'>"+signUp["username"].value+ "(=^ ^=)" +"</a></li>"
  }else{
  fadeOut();
  alert("用户已存在")
  }
  
  }
 }

 }

 loginIn.onclick = function () { //登录
 var data2 = 'username=' + signIn["username"].value + '&' + 'pass=' + signIn["pass"].value;
 ajax('post','/signin',data2,"application/x-www-form-urlencoded");
 xhr.onreadystatechange = function () {
  if(xhr.readyState==4&&xhr.status>=200&&xhr.status<300){
  let text = JSON.parse(xhr.responseText).code; //服务器返回的对象
  console.log(text);
  
   // document.getElementsByClassName('login')[0].outerHTML = "<li class='users'><a href='/'>"+signUp["username"].value+ "(=^ ^=)" +"</a></li>"
  if(text===1){
  fadeOut();
  // let imgTitle = document.getElementsByClassName('img-title')[0];
  // imgTitle.setAttribute('src','/images/' + JSON.parse(xhr.responseText).avator)
  setTimeout(()=>{
   window.location.reload();
  },1000)
  }else if(text === 2){
   alert('密码错误')
  }else{
   alert('账号不存在')
  }
  
  }
 }
 
 }
</script>