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Laravel API跨域接见的完成步骤【laravel框架】,api,laravel,php

2019-12-01Laravel搜搜PHP网69°c
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本篇文章给人人带来的内容是关于Laravel API跨域接见的完成步骤,有肯定的参考价值,有须要的朋侪能够参考一下,愿望对你有所协助。

服务器A要求服务器B的接口,那末平常会涌现跨域题目。

XMLHttpRequest cannot load http://api.console.vms3.com/api/user. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8080' istherefore not allowed access.

意义就是服务器相应不允许跨域接见.

那我们就须要让服务器支撑跨域接见, 也就是在相应头部中增加

'Access-Control-Allow-Origin: *'

第一步: 建立中间件

建立 `app/Http/Middleware/AccessControlAllowOrigin.php` middleware 把 'Access-Control-Allow-Origin: *' 写入头部.
app/Http/Middleware/AccessControlAllowOrigin.php
<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Auth;

class AccessControlAllowOrigin
{
    /**
     *
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        header('Access-Control-Allow-Origin: *');
        header("Access-Control-Allow-Credentials: true");
        header("Access-Control-Allow-Methods: *");
        header("Access-Control-Allow-Headers: Content-Type,Access-Token");
        header("Access-Control-Expose-Headers: *");

        return $next($request);
    }

}

第二步: 注册路由

注册这个 middlewarekernel 中.
分别在 protected $middleware 数组中和 protected $routeMiddleware 数组中
增加我们适才建立的谁人文件class名, 运用 cors 这个别号.

第三步: 设置中间件庇护接口

然后在设置它庇护 api , 就是$middlewareGroups['api'] 的数组中增加它的别号, 本文中是 'cors'
app/Http/Kernel.php

<?php

namespace App\Http;

use Illuminate\Foundation\Http\Kernel as HttpKernel;

class Kernel extends HttpKernel
{
    /**
     * The application's global HTTP middleware stack.
     *
     * These middleware are run during every request to your application.
     *
     * @var array
     */
    protected $middleware = [
        \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
        \Illuminate\Foundation\Http\Middleware\ValidatePostSize::class,
        \App\Http\Middleware\TrimStrings::class,
        \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
        \App\Http\Middleware\AccessControlAllowOrigin::class,
    ];

    /**
     * The application's route middleware groups.
     *
     * @var array
     */
    protected $middlewareGroups = [
        'web' => [
            \App\Http\Middleware\EncryptCookies::class,
            \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
            \Illuminate\Session\Middleware\StartSession::class,
            // \Illuminate\Session\Middleware\AuthenticateSession::class,
            \Illuminate\View\Middleware\ShareErrorsFromSession::class,
            \App\Http\Middleware\VerifyCsrfToken::class,
            \Illuminate\Routing\Middleware\SubstituteBindings::class,
        ],

        'api' => [
            'throttle:60,1',
            'bindings',
            'cors'
        ],
    ];

    /**
     * The application's route middleware.
     *
     * These middleware may be assigned to groups or used inpidually.
     *
     * @var array
     */
    protected $routeMiddleware = [
        'auth' => \Illuminate\Auth\Middleware\Authenticate::class,
        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
        'can' => \Illuminate\Auth\Middleware\Authorize::class,
        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
        'cors' => \App\Http\Middleware\AccessControlAllowOrigin::class,
    ];
}

第四步:在路由中增加路由

Route::middleware('cors')->group(function () {
    //
});

以上就是Laravel API跨域接见的完成步骤的细致内容,更多请关注ki4网别的相干文章!

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