Akka SLF4J logback配置和用法 [英] Akka SLF4J logback configuration and usage

问题描述

我已完成以下步骤尝试为我的Akka应用程序配置日志记录:

I have done the following steps to try and configure logging for my akka application:

• 创建了一个application.conf文件，并将其放在src/main/resources中.看起来像:

• created an application.conf file and placed it in src/main/resources. It looks like:

    akka { 
      event-handlers = ["akka.event.slf4j.Slf4jEventHandler"] 
      loglevel = "INFO"
    }

创建了一个logback.xml文件并将其放置在src/main/resources中.看起来像:

created a logback.xml file and placed it in src/main/resources. It looks like:

<configuration>

  <appender name="FILE" class="ch.qos.logback.core.fileappender">
    <File>./logs/akka.log</File>
    <encoder>
      <pattern>%d{HH:mm:ss.SSS} [%-5level] %msg%n</pattern>
    </encoder>
  </appender>

  <root level="info">
    <appender-ref ref="FILE" />
  </root>

</configuration>

在我的.scala sbt构建文件中添加了以下内容:

added the following to my .scala sbt build file:

    libraryDependencies += "com.typesafe.akka" % "akka-slf4j" % "2.0.3", 
    libraryDependencies += "ch.qos.logback" % "logback-classic" % "1.0.9"
    lazy val logback = "ch.qos.logback" % "logback-classic" % "1.0.9"
   

尝试使用此代码进行记录:

attempted this code to log:

    import akka.event.Logging

    val log = Logging(context.system, this)
    log.info("...")
  

我得到的只是标准输出日志记录，没有使用日志创建日志文件.

All I am getting is standard output logging, no log file creation with the logs.

我错过了一步吗?还是配置错误?

Have I missed a step ? Or misconfigured something?

推荐答案

通过这种安排，我可以使用akka.event.Logging，无需指定SLF4J实例.

With this arrangement I can use an akka.event.Logging, no need to specify SLF4J instance.

(2013年12月13日测试)

(tested 13 Dec 2013)

我得到控制台日志并记录到文件. 为了证明这不是内置记录器，我更改为包括％X {akkaTimestamp}，如下所述:

I get console logging and logging to a file. To prove this is not built-in logger I changed to include %X{akkaTimestamp} as explained here:

http://doc.akka.io/docs/akka/snapshot/scala/logging.html

build.sbt

build.sbt

library dependencies: (Akka version 2.2.3)

...
"com.typesafe.akka" %% "akka-slf4j" % "2.2.3"
"ch.qos.logback" % "logback-classic" % "1.0.9"
...

src/main/resources/application.conf

src/main/resources/application.conf

akka {
  loggers = ["akka.event.slf4j.Slf4jLogger"]
  loglevel = "INFO"
}

src/main/resources/logback.xml

src/main/resources/logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <target>System.out</target>
        <encoder>
            <pattern>%X{akkaTimestamp} %-5level[%thread] %logger{0} - %msg%n</pattern>
        </encoder>
    </appender>

    <appender name="FILE" class="ch.qos.logback.core.FileAppender">
        <file>log/akka.log</file>
        <append>false</append>
        <encoder>
            <pattern>%date{yyyy-MM-dd} %X{akkaTimestamp} %-5level[%thread] %logger{1} - %msg%n</pattern>
        </encoder>
    </appender>

    <logger name="akka" level="INFO" />

    <root level="DEBUG">
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="FILE"/>
    </root>

</configuration>

当我使用ActorLogging混合并直接创建Logging时，这种安排有效:

This arrangement works when I use an ActorLogging mixin and also create a Logging directly:

import akka.event.Logging

val log = Logging(context.system, classOf[NameOfYourActor])

log.info("good luck!")

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