Login---must be logged in to access

First create a public controller

The code is as follows

<?php
namespace Admin\controller;
Use Think\controller;
Class Basecontroller extends Controller
{
Public Function __construct ()
{
The constructor of the parent class must be called first
Parent::__construct ();
Determine login
if (!session (' id '))
$this->error (' must be logged in first! ', U (' Login/login '));
}
}

Let the controller in the background inherit this controller (outside of the login controller)

<?php
namespace Admin\controller;
Class Admincontroller extends Basecontroller
{

}

?>

Login---must be logged in to access