问题描述

我是 CodeIgniter 的新手，我刚刚阅读了他们的一些用户指南，以帮助我了解如何使用多个控制器.

I'm new to CodeIgniter and I've just gone through some of their user guide to help me understand how to do multiple controllers.

我已经想出了如何使用他们的示例之一加载多个页面.这是我的默认控制器，名为 Site.php:

I have figured out how to load multiple pages using one of their examples. This is my default controller, called Site.php:

class Site extends CI_Controller {

public function index($page = 'home') {
    if ( ! file_exists(APPPATH.'/views/'.$page.'.php')) {
        // Whoops, we don't have a page for that!
        show_404();
    }

    $data['title'] = ucfirst($page);

    $this->load->view('header', $data);
    $this->load->view($page, $data);
    $this->load->view('footer', $data);

    }
}

这一切都在我的 routes.php 上运行良好:

This all works well and good with my routes.php:

$route['default_controller'] = 'site';
$route['(:any)'] = 'site/index/$1';

例如，当我转到 localhost/website/index.php/about 时，我有一些视图可以正确加载.

I have a few views that do load correctly when I go to localhost/website/index.php/about, for example.

现在，进一步了解控制器和 URI 路由.我创建了一个新的控制器，application/controllers/MyController.php，它的编码如下:

Now, to further learn about controllers and URI routing. I created a new controller, application/controllers/MyController.php and it is coded as such:

class MyController extends CI_Controller {
    public function index() {
        $this->load->view('header');
        $this->load->view('my_controller');
        $this->load->view('footer');
    }
}

问题是，我不知道如何访问此页面.我知道默认的 URI 模式是 example.com/class/function/id/ 但我尝试了 localhost/website/mycontroller 但它不起作用.Apache 返回 404.我已经尝试了很多操作，甚至像输入 localhost/website/index.php/mycontroller 一样愚蠢，但当然这不起作用.

The thing is, I don't know how to access this page. I understand that the default URI pattern is example.com/class/function/id/ but I have tried localhost/website/mycontroller and it doesn't work. Apache returns 404. I've tried many manipulations of this, even going as stupid as typing localhost/website/index.php/mycontroller but of course that doesn't work.

使用多个控制器的正确方法是什么?我在这里做错了什么?请帮助我学习，谢谢！

_{(另外，这是我在 StackOverflow 上的第一个正确问题，如果我做错了什么或格式不正确，请告诉我！)}

推荐答案

问题在于这个规则:

$route['(:any)'] = 'site/index/$1';

拦截一切...并将其传递给Site控制器，作为index方法的参数.所以如果你打电话:

intercepts everything... and passes it to the Site controller, as an argument to the index method. So if you call:

/mycontroller

它实际上会映射到:

/site/index/mycontroller

路由发生在应用程序甚至查看控制器之前，并且路由规则会按照编写顺序进行考虑.

The routing happens before the app even looks at the controllers, and the routing rules are considered in order they are written.

因此，您需要将此规则放在规则列表的最底部，以便其他规则起作用.所以通过在前面添加:

Thus you need to put this rule at the very bottom of your rule list in order to let the other rules work. So by adding this in front:

$route['mycontroller'] = 'mycontroller';
$route['(:any)'] = 'site/index/$1';

它应该可以正常工作(虽然有点不寻常的方法，但您的全局 any 规则也是如此)，因为它会首先检查请求的 URL 是否为 /mycontroller，如果是, 它将调用 myController;否则它会像以前使用 Site 控制器一样运行.

it should work fine (although sligthly unusual approach, but so is your global any rule) as it will first check if the URL requested was /mycontroller and if so, it will call myController; otherwise it will behave like it used to with your Site controller.

这篇关于你如何在 CodeIgniter 中使用多个控制器?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！