php – Auth :: check()似乎在我的Laravel项目中无法正常工作

我想将用户重定向到主页(路由中名为home),如果他们已登录,则将其重定向到loginpage(路由中名为loginpage),如果他们不是.第一个工作正常,但是当我在登录页面输入正确的用户名和密码时,用户被重定向到同一个登录页面,而不是家.
这是代码

<?php

namespace AppHttpControllers;

use Auth;
use IlluminateHttpRequest;

class ClientController extends Controller
{
    public function home() {
    if (!Auth::check())
      return redirect()->route('loginpage');
    else
      return view('home');
  }

  public function loginpage() {
    if (!Auth::check())
      return view('loginpage');
    else
      return redirect()->route('home');
  }
}

我的登录页面中的相关javascript代码如下：

function alerting() {
        var usernam = document.getElementById("username").value;
        var password = document.getElementById("password").value;
        $(document).ready(function () {
            $.ajax({
                type: "POST",url: '{{ URL::asset('login/login.php') }}',dataType: 'json',data: {function_name: 'userLogin',uname: usernam,pname: password},success: function (data) {
                    if(data=='1'){
                        window.location.href = '{{route('home')}}';
                    }else{
                        alert("Username or password is wrong.");
                    }
                }
            })
        });

    }

这是登录功能：

<?php

include "config.php";
$ra = "SET NAMES utf8";
$retan = connection();
$resu = $retan->query($ra);
switch ($_POST['function_name']) {
    case 'userLogin':
  userLogin($_POST['uname'],$_POST['pname']);
  break;
}
function userLogin($username,$password){
   $connect = connection();
    $connect->set_charset("utf8");
        $query_in = "SELECT count(*) AS tedad FROM app_users au WHERE au.user_email='".$username."' AND au.user_password='".$password."'";
        $result = $connect->query($query_in);
        $data = mysqli_fetch_assoc($result);
        $primf = $data['tedad'];
  echo json_encode("".$primf);
}

上面提到的配置文件：

<?php
define('DB_SERVER','127.0.0.1:3306');
    define('DB_USERNAME','');
    define('DB_PASSWORD','');
    define('DB_DATABASE','test');
function connection(){
    $conn = mysqli_connect(DB_SERVER,DB_USERNAME,DB_PASSWORD,DB_DATABASE);
    return $conn;
}
?>