wangdu_wechat/app/Http/Controllers/AdminController.php

<?php

namespace App\Http\Controllers;

use App\Http\Requests;
use Illuminate\Http\Request;
use Session;

class AdminController extends Controller
{

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct(Request $request)
    {
    	 
    	Session::put('user',$request->user());
    	
        $this->middleware('auth');
    }

}