虽然不推荐使用明文密码，但是我还是发一篇教程

使用的方法还是自定义Hash，只不过我们在处理中不进行hash运算即可，参考https://onlyke.com/html/829.html

首先，新建自定义的NonHasher

<?php
namespace App\Libraries\Hashing;
use Illuminate\Contracts\Hashing\Hasher as HasherContract;
 
class NonHasher implements HasherContract{
 
    /**
     * Hash the given value.
     *
     * @param  string  $value
     * @param  array   $options
     * @return string
     */
    public function make($value, array $options = []){
        return $value;
    }
 
    /**
     * Check the given plain value against a hash.
     *
     * @param  string  $value
     * @param  string  $hashedValue
     * @param  array   $options
     * @return bool
     */
    public function check($value, $hashedValue, array $options = []){
        if (strlen($hashedValue) === 0) {
            return false;
        }
        return strcmp($value,$hashedValue) == 0;
    }
 
    /**
     * Check if the given hash has been hashed using the given options.
     *
     * @param  string  $hashedValue
     * @param  array   $options
     * @return bool
     */
    public function needsRehash($hashedValue, array $options = []){
        if (strlen($hashedValue) === 0) {
            return false;
        }
        return $hashedValue;
    }
}

然后，在AuthServiceProvider中注入

#app\Providers\AuthServiceProvider.php

namespace App\Providers;

use Auth;
use Illuminate\Auth\EloquentUserProvider;
use App\Libraries\Hashing\NonHasher;
use Illuminate\Support\Facades\Gate;
use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;

class AuthServiceProvider extends ServiceProvider
{
    /**
     * The policy mappings for the application.
     *
     * @var array
     */
    protected $policies = [
        'App\Model' => 'App\Policies\ModelPolicy',
    ];

    /**
     * Register any authentication / authorization services.
     *
     * @return void
     */
    public function boot()
    {
        $this->registerPolicies();

        //使用自定义的Hash来处理密码
        Auth::provider('non', function($app, array $config) {
            return new EloquentUserProvider(new NonHasher,$config['model']);
        });
    }
}

当然，最后别忘了设置config\auth.php下面的providers中driver为你上面在Auth::provider中声明的名字

/*
    |--------------------------------------------------------------------------
    | User Providers
    |--------------------------------------------------------------------------
    |
    | All authentication drivers have a user provider. This defines how the
    | users are actually retrieved out of your database or other storage
    | mechanisms used by this application to persist your user's data.
    |
    | If you have multiple user tables or models you may configure multiple
    | sources which represent each model / table. These sources may then
    | be assigned to any extra authentication guards you have defined.
    |
    | Supported: "database", "eloquent"
    |
    */

    'providers' => [
        'users' => [
            'driver' => 'non',
            'model' => App\User::class,
        ],

        // 'users' => [
        //     'driver' => 'database',
        //     'table' => 'users',
        // ],
    ],