这是我的方法：
我运行以下PHP Artisan命令：
php artisan make:middleware AfterCacheMiddleware
php artisan make:middleware BeforeCacheMiddleware
然后，我更新了我新创建的中间件（AfterCacheMiddleware和BeforeCacheMiddleware），如下所示：
AfterCacheMiddleware
class AfterCacheMiddleware {
/**
* Handle an incoming request.
*
* @param 'Illuminate'Http'Request $request
* @param 'Closure $next
* @return mixed
*/
public function handle($request, Closure $next)
{
$response = $next($request);
$key = $this->keygen($request->url());
if( ! Cache::has( $key ) ) Cache::put( $key, $response->getContent(), 1 );
return $response;
}
protected function keygen( $url )
{
return 'route_' . Str::slug( $url );
}
}
BeforeCache中间件
namespace App'Http'Middleware;
use Closure;
use Cache;
use Str;
class BeforeCacheMiddleware {
/**
* Handle an incoming request.
*
* @param 'Illuminate'Http'Request $request
* @param 'Closure $next
* @return mixed
*/
public function handle($request, Closure $next)
{
$key = $this->keygen($request->url());
if( Cache::has( $key ) ) return Cache::get( $key );
return $next($request);
}
protected function keygen( $url )
{
return 'route_' . Str::slug( $url );
}
}
此外，我已经在app/Http/Kernel.php中注册了这两个中间件
'App'Http'Middleware'AfterCacheMiddleware',
'App'Http'Middleware'BeforeCacheMiddleware',
'cacheafter' => 'App'Http'Middleware'AfterCacheMiddleware',
'cachebefore' => 'App'Http'Middleware'BeforeCacheMiddleware',
以下是我的路线：
Route::get('middle', ['middleware' => 'cachebefore','cacheafter', function()
{
echo "success";
}]);
在第一次加载页面时，一切正常（因为页面没有缓存）。
在随后的访问中，我得到了以下错误：ErrorException in VerifyCsrfToken.php line 76: Trying to get property of non-object。
我认为错误源于这一行：
if( Cache::has( $key ) ) return Cache::get( $key );
但我想不通。
无需添加所有这些内容。如果你也想更新标题信息，这些都很好。
在您之前的支票中：
if( Cache::has( $key ) ) return Cache::get( $key );
根据@Den 的建议更改上述代码
if( Cache::has( $key ) )
{
$content=Cache::get( $key );
return response($content);
}
这会奏效的。如果您有任何问题，请返回。
试试吧。
<?php namespace App'Http'Middleware;
use Closure;
use Cache;
use Illuminate'Support'Str;
use Event;
class AfterCacheMiddleware {
/**
* Handle an incoming request.
*
* @param 'Illuminate'Http'Request $request
* @param 'Closure $next
* @return mixed
*/
public function handle($request, Closure $next)
{
/* Event::listen('illuminate.query', function($query)
{
var_dump($query);
return false;
});*/
$response = $next($request);
$key = $this->keygen($request->url());
$key2 = $this->keygen($request->url()).'_2';
if( ! Cache::has( $key ) )
{
Cache::put( $key, $response->getContent(), 1 );
Cache::put( $key2, $response->headers, 1);
}
return $next($request);
}
protected function keygen( $url )
{
return 'route_' . Str::slug( $url );
}
}
<?php namespace App'Http'Middleware;
use Closure;
use Cache;
use Illuminate'Support'Str;
class BeforeCacheMiddleware {
/**
* Handle an incoming request.
*
* @param 'Illuminate'Http'Request $request
* @param 'Closure $next
* @return mixed
*/
public function handle($request, Closure $next)
{
$key = $this->keygen($request->url());
$key2 = $this->keygen($request->url()).'_2';
if( Cache::has( $key )&& Cache::has( $key2 ) )
{
$content=Cache::get( $key );
$header=Cache::get( $key2 );
$header=explode('Cache-Control:',$header);
$header1=explode('Content-Type:',$header[1]);
$header2=explode('Date:',$header1[1]);
$header3=explode('Set-Cookie:',$header2[1]);
$CacheControl=trim($header1[0]);
$ContentType=trim($header2[0]);
$Date=trim($header3[0]);
$SetCookie=trim($header3[1]);
return response($content)
->header('Cache-Control',$CacheControl)
->header('Content-Type',$ContentType)
->header('Date',$Date)
->header('Set-Cookie',$SetCookie);
}
return $next($request);
}
protected function keygen( $url )
{
return 'route_' . Str::slug( $url );
}
}