发布于 2015-12-06 07:28:50 | 169 次阅读 | 评论: 0 | 来源: 网络整理
Monolog 可以当应用程序出现错误的时候被配置来发送电子邮件。这个配置需要一些嵌入的 handlers 来避免接收太多的电子邮件。这个配置起初看起来会很复杂但是每一个 handler 在出故障时都是很直接的。
YAML:
# app/config/config_prod.yml
monolog:
handlers:
mail:
type: fingers_crossed
# 500 errors are logged at the critical level
action_level: critical
# to also log 400 level errors (but not 404's):
# action_level: error
# excluded_404s:
# - ^/
handler: buffered
buffered:
type: buffer
handler: swift
swift:
type: swift_mailer
from_email: error@example.com
to_email: error@example.com
# or list of recipients
# to_email: [dev1@example.com, dev2@example.com, ...]
subject: An Error Occurred!
level: debugXML:
<!-- app/config/config_prod.xml -->
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:monolog="http://symfony.com/schema/dic/monolog"
xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd
http://symfony.com/schema/dic/monolog http://symfony.com/schema/dic/monolog/monolog-1.0.xsd">
<monolog:config>
<monolog:handler
name="mail"
type="fingers_crossed"
action-level="critical"
handler="buffered"
<!--
To also log 400 level errors (but not 404's):
action-level="error"
And add this child inside this monolog:handler
<monolog:excluded-404>^/</monolog:excluded-404>
-->
/>
<monolog:handler
name="buffered"
type="buffer"
handler="swift"
/>
<monolog:handler
name="swift"
type="swift_mailer"
from-email="error@example.com"
subject="An Error Occurred!"
level="debug">
<monolog:to-email>error@example.com</monolog:to-email>
<!-- or multiple to-email elements -->
<!--
<monolog:to-email>dev1@example.com</monolog:to-email>
<monolog:to-email>dev2@example.com</monolog:to-email>
...
-->
</monolog:handler>
</monolog:config>
</container>PHP:
// app/config/config_prod.php
$container->loadFromExtension('monolog', array(
'handlers' => array(
'mail' => array(
'type' => 'fingers_crossed',
'action_level' => 'critical',
// to also log 400 level errors (but not 404's):
// 'action_level' => 'error',
// 'excluded_404s' => array(
// '^/',
// ),
'handler' => 'buffered',
),
'buffered' => array(
'type' => 'buffer',
'handler' => 'swift',
),
'swift' => array(
'type' => 'swift_mailer',
'from_email' => 'error@example.com',
'to_email' => 'error@example.com',
// or a list of recipients
// 'to_email' => array('dev1@example.com', 'dev2@example.com', ...),
'subject' => 'An Error Occurred!',
'level' => 'debug',
),
),
));邮件 handler 是一个 fingers_crossed 的 handler，这就意味着这只有在行为层才会被触发，在这个例子中到达了临界。临界层只会触发 5xx HTTP 代码错误。如果一旦到达这一层 fingers_crossed 的 handler 将会记录所有的消息且不管它们是哪一层。handler 设置意味着输出之后传递到 缓冲 handler。
如果你想要 400 和 500 层次错误触发电子邮件，将 action_level 设置成 critical 而不是 error。可以参照上面例子的代码。
缓冲 handler 简单地保留着请求的所有信息然后一口气将他们传递到嵌入的 handler 中。如果不使用这个 handler 那么每条消息将会分别发送电子邮件。这就是后来传递到 swift handler 的。这是专门处理向你发送错误电子邮件的 handler。这个的设置很直接，对于来去的地址和主题来说。
你可以将这些 handler 与其他的合并这样错误就会在发出邮件的同时记录在服务器中：
YAML:
# app/config/config_prod.yml
monolog:
handlers:
main:
type: fingers_crossed
action_level: critical
handler: grouped
grouped:
type: group
members: [streamed, buffered]
streamed:
type: stream
path: "%kernel.logs_dir%/%kernel.environment%.log"
level: debug
buffered:
type: buffer
handler: swift
swift:
type: swift_mailer
from_email: error@example.com
to_email: error@example.com
subject: An Error Occurred!
level: debugXML:
<!-- app/config/config_prod.xml -->
<container xmlns="http://symfony.com/schema/dic/services"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:monolog="http://symfony.com/schema/dic/monolog"
xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd
http://symfony.com/schema/dic/monolog http://symfony.com/schema/dic/monolog/monolog-1.0.xsd">
<monolog:config>
<monolog:handler
name="main"
type="fingers_crossed"
action_level="critical"
handler="grouped"
/>
<monolog:handler
name="grouped"
type="group"
>
<member type="stream"/>
<member type="buffered"/>
</monolog:handler>
<monolog:handler
name="stream"
path="%kernel.logs_dir%/%kernel.environment%.log"
level="debug"
/>
<monolog:handler
name="buffered"
type="buffer"
handler="swift"
/>
<monolog:handler
name="swift"
from-email="error@example.com"
to-email="error@example.com"
subject="An Error Occurred!"
level="debug"
/>
</monolog:config>
</container>PHP:
// app/config/config_prod.php
$container->loadFromExtension('monolog', array(
'handlers' => array(
'main' => array(
'type' => 'fingers_crossed',
'action_level' => 'critical',
'handler' => 'grouped',
),
'grouped' => array(
'type' => 'group',
'members' => array('streamed', 'buffered'),
),
'streamed' => array(
'type' => 'stream',
'path' => '%kernel.logs_dir%/%kernel.environment%.log',
'level' => 'debug',
),
'buffered' => array(
'type' => 'buffer',
'handler' => 'swift',
),
'swift' => array(
'type' => 'swift_mailer',
'from_email' => 'error@example.com',
'to_email' => 'error@example.com',
'subject' => 'An Error Occurred!',
'level' => 'debug',
),
),
));这个使用了 group handler 来向两个组员发送消息，buffered 和 stream handlers。现在这些消息既被记录在日志中又被电子邮件发送出去了。