今天给大家介绍的是当下很流行的框架layui中的一个小案例、就是form表单监控提交并且使用ajax异步提交验证数据。在layui中我们想使用哪个模块就要layui.use('form',function{});这种形式要引用form内置模板,下面是HTML全部代码

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>注册</title>
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
  <meta name="keywords" content="雷小天">
  <meta name="description" content="雷小天博客-layui中使用form表单监听异步验证注册">
  <link rel="stylesheet" href="__RES__/layui/css/layui.css">
  <link rel="stylesheet" href="__RES__/css/global.css">
</head>
<body>

<div class="fly-header layui-bg-black">
  <div class="layui-container">
    <a class="fly-logo" href="{:U('device/getinfo')}">
      <img src="__RES__/images/logo.png" alt="layui">
    </a>
    

    <ul class="layui-nav fly-nav-user">
      <!-- 未登入的状态 -->
      <li class="layui-nav-item">
        <a class="iconfont icon-touxiang layui-hide-xs" href="user/login.html"></a>
      </li>
      <li class="layui-nav-item">
        <a href="{:U('device/login')}">登入</a>
      </li>
      <li class="layui-nav-item">
        <a href="javascript::void;">注册</a>
      </li>
      
    </ul>
  </div>
</div>

<div class="layui-container fly-marginTop">
  <div class="fly-panel fly-panel-user" pad20>
    <div class="layui-tab layui-tab-brief" lay-filter="user">
      <ul class="layui-tab-title">
        <li><a href="{:U('device/login')}">登入</a></li>
        <li class="layui-this">注册</li>
      </ul>
      <div class="layui-form layui-tab-content" id="LAY_ucm" style="padding: 20px 0;">
        <div class="layui-tab-item layui-show">
          <div class="layui-form layui-form-pane">
            <form method="post">
              <div class="layui-form-item">
              <label for="L_username" class="layui-form-label">手机</label>
              <div class="layui-input-inline">
              <input type="text" id="signuppassdata" name="phone" required lay-verify="required" autocomplete="off" class="layui-input">
              </div>
              </div>

              <div class="layui-form-item">
                <label for="L_username" class="layui-form-label">卡号</label>
                <div class="layui-input-inline">
                  <input type="text" id="cardno" name="cardno"  required lay-verify="required" autocomplete="off" class="layui-input">
                </div>
              </div>


              <div class="layui-form-item">
                
                <button class="layui-btn" type="submit" lay-filter="reg" lay-submit="" id="signuppass" >立即注册</button>

              </div>
              
            </form>
          </div>
        </div>
      </div>
    </div>
  </div>

</div>

<div class="fly-footer">
 <p>开门社区 2018 &copy; <a href="http://www.100txy.com/" target="_blank">100txy.com 出品</a></p>
 <p><a href="JavaScript::void;" target="_blank">雷小天博客</a></p>
</div>

<script src="__PUBLIC__/mobile/js/jquery.js"></script>
<script src="__RES__/layui/layui.js"></script>
<script>

//监听提交
layui.use('form', function(){
  var form = layui.form;
    form.on('submit(reg)', function(data){
    // layer.msg(JSON.stringify(data.field));//弹出json格式所有表单的值
    var phone=data.field.phone;
    var cardno=data.field.cardno;
    if(phone.length!=11){
      layer.msg('请输入有效的手机号码', {icon: 2});
      return false;
    }
    var myreg = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1}))+\d{8})$/;
    if(!myreg.test(phone)){
      layer.msg('请输入有效的手机号码', {icon: 2});
      return false;
    }
    if(cardno.length!=8){
      layer.msg('请输入有效的卡片内码!', {icon: 2});
      return false;
    }
    $.ajax({
      type:"POST",
       url:"index.php?m=Home&c=Device&a=ajax_reg",
      data:"phone="+phone+"&cardno="+cardno,
      dataType:"json",
      success:function(data){
        if(data.status=='yes'){
          layer.msg('注册成功!', {icon: 1});
          var url = "{:U('device/getinfo')}"; //成功跳转的url
          setTimeout(window.location.href=url,2000);
        }else{
          layer.msg(data.msg, {icon: 2});
        }
      },
    });
	return false;
  });
});

</script>

</body>
</html>

下面是ajax_reg逻辑方面,这是我的业务逻辑大家没必要照搬,知道怎么用就行了

//表单异步提交
  public function ajax_reg(){
    if(isset($_POST['phone'])&&isset($_POST['cardno'])){
      $roomnostr = M("userinfo")->where(array('cardno'=>$_POST['cardno']))->getField('roomno');
      if(!$roomnostr){
          echo json_encode(array('status'=>'no','msg'=>'无效的卡片内码,请联系管理员!'));
          exit();
      }
      $wechatinfo=$_SESSION['wechatinfo'];
      if(!$wechatinfo){
          echo json_encode(array('status'=>'no','msg'=>'页面已过期请重新扫码进入!'));
          exit();
      }

      $result= M("weixin")->where(array('openid'=>$wechatinfo['openid']))->field('is_signup,area_id')->find();
      $areaArr=explode('-',$result['area_id']);
      // $result=M("weixin")->getFieldByOpenid($_POST['openid'],'is_signup');
      if(isset($result)&&$result['is_signup']==1){//如果注册过一次下次只更新门区
        $new_area=$roomnostr;
         $reg=M("weixin")->where(array('openid'=>$wechatinfo['openid']))->save(array('area_id'=>$new_area));
          echo json_encode(array('status'=>'no','type'=>'signuppass','msg'=>'你已注册为该门区的租户,请勿重复注册!'));
          exit();
      }else{
        $data=array(
          'is_signup'=>1,
          'phone'=>$_POST['phone'],
          'openid'=>$wechatinfo['openid'],
          'nickname'=>$wechatinfo['nickname'],
          'sex'=>$wechatinfo['sex'],
          'headimgurl'=>$wechatinfo['headimgurl'],
          'area_id'=>$roomnostr,
          'regtime'=>time(),
          'cardno'=>$_POST['cardno'],
        );
        $reg=M("weixin")->add($data);
        if($reg){
          echo json_encode(array('status'=>'yes','msg'=>'恭喜你,注册成功!'));
        }
      }

    }
  }