在laravel中使用try-catch异常处理

Question

在我的应用程序中，这是RegisterController，

<?php
namespace AppHttpControllersAuth;
use AppHttpControllersController;
use AppProvidersRouteServiceProvider;
use AppUser;
use IlluminateFoundationAuthRegistersUsers;
use IlluminateSupportFacadesHash;
use IlluminateSupportFacadesValidator;
class RegisterController extends Controller
{
/*
|--------------------------------------------------------------------------
| Register Controller
|--------------------------------------------------------------------------
|
| This controller handles the registration of new users as well as their
| validation and creation. By default this controller uses a trait to
| provide this functionality without requiring any additional code.
|
*/
use RegistersUsers;
/**
* Where to redirect users after registration.
*
* @var string
*/
protected $redirectTo = RouteServiceProvider::HOME;
/**
* Create a new controller instance.
*
* @return void
*/
public function __construct()
{
$this->middleware('guest');
}
/**
* Get a validator for an incoming registration request.
*
* @param  array  $data
* @return IlluminateContractsValidationValidator
*/
protected function validator(array $data)
{
return Validator::make($data, [
'name' => ['required', 'alpha','min:2', 'max:255'],
'last_name' => ['required', 'alpha','min:2', 'max:255'],
'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
]);
}
/**
* Create a new user instance after a valid registration.
*
* @param  array  $data
* @return AppUser
*/
protected function create(array $data)
{
return User::create([
'name' => $data['name'],
'last_name' => $data['last_name'],
'email' => $data['email'],
]);
}
}

我在这里做了基本的验证。

但现在我想知道如何使用try-catch异常处理来处理控制器错误，如果发生错误，如何将用户重定向回注册刀片？我可以在这里使用try-catch异常处理吗？或者这足够安全吗？

我正在使用laravel 6

Answer 1

使用Validation最简单的方法之一是使用FormRequest。

class CreateUserRequest extends FormRequest
{
public function rules()
{
return [
'name' => ['required', 'alpha','min:2', 'max:255'],
'last_name' => ['required', 'alpha','min:2', 'max:255'],
'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
];
}
}

在控制器向外的方法中，使用它(似乎create受到保护，找不到store函数(。这将自动重定向和验证，而不需要任何额外的代码。

public function create(CreateUserRequest $request, array $data)
{
return User::create([
'name' => $data['name'],
'last_name' => $data['last_name'],
'email' => $data['email'],
]);
}

然后，您可以检查刀片中的验证错误，如文档中所述。

@if ($errors->any())
<div class="alert alert-danger">
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif