新建UserProvider，如果继承EloquentUserProvider，注入model是必须的，或者去继承interface，自己实现一些方法
use Illuminate\Auth\EloquentUserProvider; use Illuminate\Contracts\Auth\Authenticatable as UserContract;class MyUserProvider extends EloquentUserProvider {protected $model;public function __construct($model){$this->model = $model;}public function validateCredentials(UserContract $user, array $credentials){$plain = $credentials['password'];$secret = $user->getAuthPassword();if (password_verify($plain, $secret)){return true;}elseif ($this->think_ucenter_md5($plain) === $secret){$user->password = password_hash($plain, PASSWORD_DEFAULT);$user->save();return true;}}private function think_ucenter_md5($str){return md5(sha1($str) . 'VvKl0QZBE7nao5xtXqGkWrMPchRbHdwmLF361izT');}}
app\Providers\AuthServiceProvider.php 中进行注册
public function boot(GateContract $gate){$this->registerPolicies($gate);Auth::provider('my', function($app) {// 返回Illuminate\Contracts\Auth\UserProvider实例...return new MyUserProvider(User::class);});}
更改config/auth.php
'providers' => ['users' => ['driver' => 'my','model' => my\User\User::class,],
