jucai/app/Http/Controllers/Mobile/Active/TestController.php

<?php
namespace App\Http\Controllers\Mobile\Active;

use App\Http\Controllers\Mobile\MobileBaseController;
use Illuminate\Support\Facades\Session;

class TestController extends MobileBaseController
{
    public function __construct()
    {

    }

    public function index()
    {
        echo Session::get('open_id');
    }
}