Auth 自动验证 ettempt 返回始终 false

    public function login(Request $request)
    {
        if($request->isMethod('POST')){
            $this->validate($request,[
                'email'     =>  'required|email',
                'password'  =>  'required|between:8,32',
                'captcha'   =>  'required|captcha'
            ],[
                'required'  =>  ':attribute不能为空',
                'email'     =>  ':attribute不正确',
                'captcha'   =>  ':attribute验证失败',
                'between'   =>  ':attribute必须在8到32位'
            ],[
                'email'     =>  '邮箱',
                'password'  =>  '密码',
                'captcha'   =>  '验证码'
            ]);
            $date = $request->only(['email','password']);
            $requests =  Auth::guard('web')->attempt($date,$request->get('online'));
            dd($requests);
        }else{
            return view('home.login');
        }
    }Copy

<?php
namespace App\Models;
use Illuminate\Contracts\Auth\Authenticatable;
use Illuminate\Database\Eloquent\Model;
class ios extends Model implements Authenticatable
{
    protected $table = 'ios';
    protected $fillable = ['username','password','email'];

    /**
     * Get the name of the unique identifier for the user.
     *
     * @return string
     */
    public function getAuthIdentifierName()
    {
        // TODO: Implement getAuthIdentifierName() method.
    }

    /**
     * Get the unique identifier for the user.
     *
     * @return mixed
     */
    public function getAuthIdentifier()
    {
        // TODO: Implement getAuthIdentifier() method.
    }

    /**
     * Get the password for the user.
     *
     * @return string
     */
    public function getAuthPassword()
    {
        // TODO: Implement getAuthPassword() method.
    }

    /**
     * Get the token value for the "remember me" session.
     *
     * @return string
     */
    public function getRememberToken()
    {
        // TODO: Implement getRememberToken() method.
    }

    /**
     * Set the token value for the "remember me" session.
     *
     * @param string $value
     * @return void
     */
    public function setRememberToken($value)
    {
        // TODO: Implement setRememberToken() method.
    }

    /**
     * Get the column name for the "remember me" token.
     *
     * @return string
     */
    public function getRememberTokenName()
    {
        // TODO: Implement getRememberTokenName() method.
    }
}
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    'guards' => [
        'web' => [
            'driver' => 'session',
            'provider' => 'users',
        ],

        'api' => [
            'driver' => 'token',
            'provider' => 'users',
            'hash' => false,
        ],
    ],

    'providers' => [
        'users' => [
            'driver' => 'eloquent',
            'model' => App\Models\ios::class,
        ],
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