Question

我花了好几个小时翻阅了monolog文档..我只是无法弄清楚这个基本问题：如何在monolog中定义通道？我在config.yml文件中得到了这个symfony2项目：

monolog:
    handlers:
        api:
            type:  stream
            path:  "%kernel.logs_dir%/%kernel.environment%_api_request_raw.log"
            channels: api
            formatter: monolog.formatter.session_api
        api_low:
            type:  stream
            path:  "%kernel.logs_dir%/%kernel.environment%_api_request_low.log"
            channels: api_low
            formatter: monolog.formatter.session_api
        car_location:
            type:  stream
            path:  "%kernel.logs_dir%/car locations/%kernel.environment%_carLocation_not-recognized.log"
            channels: not_recognized
            level: %log_debug_level%
            formatter: monolog.formatter.session_location
        active_request:
            type:  stream
            path:  "%kernel.logs_dir%/%kernel.environment%_api_active_request.log"
            channels: active_request
            level: %log_debug_level%
            formatter: monolog.formatter.session_location
        get_request:
            type:  stream
            path:  "%kernel.logs_dir%/%kernel.environment%_api_get_request.log"
            channels: get_request
            level: %log_debug_level%
            formatter: monolog.formatter.session_location

现在在我得到这些服务的同一个文件中：

services:
    monolog.formatter.session_location:
        class: Monolog\Formatter\LineFormatter
        arguments:
            - "[%%datetime%%] %%level_name%%: %%message%%\n"

    monolog.formatter.session_api:
        class: Monolog\Formatter\LineFormatter
        arguments:
            - "[%%datetime%%] %%channel%%.%%level_name%%: %%message%%\n"

基本上定制了日志消息..足够公平..

在哪里定义？ api_low与api有什么不同？我在这里看到例如处理程序名称与通道相同（即api处理程序有api通道）..但我不知道该怎么做它</ p>

如果我只是放一个

 $logger = $this->get("logger");
 $logger->debug("hello world");

在我的代码中，我在控制台中获取此日志：

[2014-05-16 15:38:15] app.DEBUG: hello world [] []

我也在控制台中也看到了这些：

[2014-05-16 15:38:08] request.INFO: Matched route "sonata_admin_dashboard" (parameters: "_controller": "St\AdminBundle\Controller\DashboardController::dashboardAction", "_route": "sonata_admin_dashboard") [] []
[2014-05-16 15:38:08] event.DEBUG: Notified event "kernel.request" to listener "Symfony\Component\HttpKernel\EventListener\LocaleListener::onKernelRequest". [] []
[2014-05-16 15:38:08] event.DEBUG: Notified event "kernel.request" to listener "Symfony\Component\Security\Http\Firewall::onKernelRequest". [] []
[2014-05-16 15:38:08] security.DEBUG: Read SecurityContext from the session [] []
[2014-05-16 15:38:08] security.DEBUG: Reloading user from user provider. [] []
[2014-05-16 15:38:08] doctrine.INFO: MongoDB query: {"find":true,"query":{"_id":{"$id":"51c8c071efe5b8dd09000003"},"type":{"$in":["user","client","partner"]}},"fields":[],"db":"smarttaxi_dev","collection":"User"} [] []
[2014-05-16 15:38:08] doctrine.INFO: MongoDB query: {"limit":true,"limitNum":1,"query":{"_id":{"$id":"51c8c071efe5b8dd09000003"},"type":{"$in":["user","client","partner"]}},"fields":[]} [] []
[2014-05-16 15:38:08] doctrine.INFO: MongoDB query: {"limit":true,"limitNum":1,"query":{"_id":{"$id":"51c8c071efe5b8dd09000003"},"type":{"$in":["user","client","partner"]}},"fields":[]} [] []
[2014-05-16 15:38:08] doctrine.INFO: MongoDB query: {"limit":true,"limitNum":1,"query":{"_id":{"$id":"51c8c071efe5b8dd09000003"},"type":{"$in":["user","client","partner"]}},"fields":[]} [] []
[2014-05-16 15:38:08] security.DEBUG: Username "aiia" was reloaded from user provider. [] []
[2014-05-16 15:38:08] event.DEBUG: Notified event "kernel.request" to listener "FOS\RestBundle\EventListener\BodyListener::onKernelRequest". [] []
[2014-05-16 15:38:08] event.DEBUG: Notified event "kernel

其中一些是显而易见的：学说匹配相关的东西，但我不知道我在哪里找到这些东西的定义或参考。

问另一种方式：api_low是一个monolog定义的特殊键吗？如果是的话，它的文件在哪里？我无法在所有代码中找到此字符串的任何实例，因此我假设它是预定义的变量吗？

Answer 1

不，api_low不是一个特殊的密钥，它是一个开发人员定义的密钥，用于分隔日志（并可能以不同的方式管理它们，例如在不同的* .log文件中）。

有关详细信息，请参阅Cookbook about Monolog和How to use a custom channel in a service。

[编辑：示例]

我认为：

config.yml与原始帖子中描述
您有一项名为MyService的服务，其功能为doSomeStuff()
您熟悉Symfony的服务理念

在service.yml：

myService.doSomeStuff:
        class: MyProject\MyBundle\Service\MyService
        arguments: [ "@logger"]
        tags:
            - { name: monolog.logger, channel: api_low }

在MyService.php：

protected $apiLowLogger;    

public function __construct($apiLowLogger)
{
    $this->apiLowLogger = $apiLowLogger;
}

public function doSomeStuff()
{
    $this->apiLowLogger->debug('This debug message will be written in %kernel.logs_dir%/%kernel.environment%_api_request_low.log');
}

要了解不同类型的日志（debug()，error()，info()等），请参阅this page。

如何在symfony monolog中定义通道？

1 个答案: