在CakePHP 2中抛出自定义503异常 [英] Throwing a custom 503 exception in CakePHP 2

问题描述

我需要提供 503服务不可用 HTTP标头。

通常我使用404和500代码。

  NotFoundException（）; 
 throw new InternalErrorException（）; 
  

但我在CakePHP 2.2中找不到503的相关异常？

在我的app / lib / AppExceptionHandler.php文件中，我有一个处理错误的类/函数。

  class AppExceptionHandler {
 public static function handle（$ error）{
} 
  

编辑：

• 文件夹我创建了一个名为 MyExceptions.php 的文件。我在这个文件中写了以下代码：

    class ServiceUnavailableException extends CakeException {
   
   protected $ _messageTemplate = '服务现在不可用'; 
   
  } 
    




• 在 bootstrap.php 我这样写：

  
  
  

  App :: uses（'MyExceptions'，'Lib'）; li>

  然后在 MyNewController.php 文件中写入：

  
  
  

  throw new ServiceUnavailableException（just trying）; / p>

但是，当我抛出此异常时会收到此错误：

 致命错误：
中找不到类'ServiceUnavailableException'/var/www/vhosts/example.com/httpdocs/app/Controller/MyNewController.php 
 on line 3560 
 
警告（2）：无法修改标题信息 -  
发送的标题（输出开始于
 /var/www/vhosts/example.com/httpdocs/ app / Controller / MyNewController.php：3560）
 [APP / Lib / AppExceptionHandler.php，第19行] 
  

我错过什么？
谢谢

解决方案

Cake 2.0书中的例外页面值得一读。

这是我的短测试：

  //在bootstrap.php 
 require 。DS。'MyExceptions.php'）; 
 
 
 // in /Lib/MyExceptions.php 
 class ServiceUnavailableException extends CakeException {
 
 protected $ _messageTemplate ='Test'; 
} 
 
 // in controller 
 throw new ServiceUnavailableException（'Service unavailable'，503）; 
  

I need to give a 503 Service Unavailable HTTP header.

Normally I use these for 404 and 500 codes

throw new NotFoundException();
throw new InternalErrorException();

But I couldn't find relevant exception for 503 in CakePHP 2.2?

In my "app/lib/AppExceptionHandler.php" file I have this class/function that handles errors.

class AppExceptionHandler {
    public static function handle($error) {
     }

Edit:

• Inside "app/Lib" folder I created a file named "MyExceptions.php". I wrote the following code inside this file:

  class ServiceUnavailableException extends CakeException {
  
  protected $_messageTemplate = 'Service is not available now';
  
  }
  

• In "bootstrap.php" I wrote this:

  App::uses('MyExceptions', 'Lib');

• Then inside "MyNewController.php" file I wrote this:

  throw new ServiceUnavailableException("just trying");

But then I get this error when I throw this exception:

Fatal error: Class 'ServiceUnavailableException' not found in
 /var/www/vhosts/example.com/httpdocs/app/Controller/MyNewController.php
 on line 3560

Warning (2): Cannot modify header information - headers already sent by
(output started at 
/var/www/vhosts/example.com/httpdocs/app/Controller/MyNewController.php:3560)
[APP/Lib/AppExceptionHandler.php, line 19]

What do I miss? Thank you

解决方案

The Exceptions page in the Cake 2.0 book is worth a read.

Here's my short test:

// in bootstrap.php
require(APP . 'Lib' . DS . 'MyExceptions.php');


// in /Lib/MyExceptions.php
class ServiceUnavailableException extends CakeException {

    protected $_messageTemplate = 'Test';
}

// in controller
throw new ServiceUnavailableException('Service unavailable', 503);

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