Laravel框架处理用户的请求操作详解

public static function getRequest(Request $request)
{
  //获取请求类型
  echo "请求类型" . $request->method() . "<br/>";
  //判断请求类型
  if ($request->isMethod('POST')){}
  //请求的url
  echo "url:" . $request->url();
  //判断请求路径是否匹配
  if ($request->is('*/index'))
    echo '这是主页';
  //获取请求中的值
  if ($request->has('val')) {
    var_dump($request->input('val'));
  }
}

return response()->json($data);

return response($data, 200)
  ->header('Content-Type', 'text/plain');

return response()->download(storage_path('app/photo/test.jpg'), '测试图片.jpg');

//重定向到命名路由，带参数
return redirect()->route('redirect',['name'=>'tory']);
//重定向到路由，带一次性Session
return redirect('redirect')->with('msg','redirect');
//重定向到controller
return redirect()->action('Login@redirect');
//重定向到上一界面
return redirect()->back();

namespace App\Http\Middleware;
use Closure;
class Activity
{
  public function handle($request,Closure $next){
    //如果时间小于指定时间则跳转到noActivity路由
    if (time()<strtotime('2018-5-12')){
      return redirect('noActivity');
    }else {      //时间符合则执行下一步并把请求request传递给下一步
      return $next($request);
    }
  }
}

public function handle($request, Closure $next)
{
    $response = $next($request);    //先执行请求
    // 执行后置中间件操作
    return $response;
}

return response(array('status'=>2,'msg'=>"请先登录！"))

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

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,
  'activity'=>\App\Http\Middleware\Activity::class      //注册activity中间件
];

Route::get('activity','Login@activity')->middleware('activity');

//使用HTTP request session
echo '<br/>';
$request->session()->put('key','value');
echo $request->session()->get('key');
//使用辅助函数session
echo "<br/>";
session(['key2'=>'value2']);
echo "session辅助函数".session('key2');
//Session类
Session::put(['key3'=>'val3']);
echo Session::get('key3')

$res=Session::all();

Session::forget('key');     //删除指定session
Session::flushu();       //删除所有session

Session::push('arr','val4');
Session::push('arr','val5');
var_dump(Session::get('arr'));

$res=Session::pull('arr');  //取出数据并删除

Session::flash('key5','val5');