Question

我已尝试以下步骤配置mykka系统的日志记录：

1.处理application.conf和logback.xml文件，并将它们放在src / main / resources目录中 2.application.conf文件如下所示： -

    akka {  
     loggers = ["akka.event.slf4j.Slf4jLogger"]  
     logging-filter="akka.event.slf4j.Slf4jLoggingFilter"  
     log-config-on-start = on  
     loglevel = "DEBUG"  
    }

3.logback.xml文件如下所示： -

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

<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>/Users/deepak/work/logs/akka.log</file>
    <append>true</append>
    <encoder>
        <pattern>%date{yyyy-MM-dd} %X{akkaTimestamp} %-5level[%thread] %logger{1} - %msg%n</pattern>
    </encoder>
</appender>

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

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

4.sbt构建依赖项： -

    libraryDependencies += "com.typesafe.akka" % "akka-slf4j_2.11" % "2.4.14"  
    libraryDependencies += "ch.qos.logback" % "logback-classic" % "1.1.3" % Test

5.Akka Version =“2.4.14”
6.在构建jar文件后，我检查了application.conf，并在其中存在logback.xml文件。所以，我不认为这是任何类路径问题 7.我的演员混合了ActorLogging特质。但是当我运行jar文件时，我无法看到日志

    import akka.actor.{Actor, ActorLogging}  
    class Reader extends Actor with ActorLogging{  
     override def receive = {  
      case _ =>log.info("Reader")  
     }  
    }

请帮助。我无法弄清楚问题

Answer 1

快速浏览后，我看到了项目中的两个主要问题：

您的logback.xml格式错误。它应以<configuration>开头，以</configuration>
您的build.sbt有问题。导入logback-classic时，您应该从该行中删除Test标记。否则，您只能在test类中使用该库。
此外，我建议您使用最新版本的akka-slf4j_2.11和logback-classic。在这种情况下，这不会造成任何伤害，但坚持使用最新版本。

以下是项目的更正版本：

<强> build.sbt

scalaVersion := "2.11.8"

libraryDependencies += "com.typesafe.akka" % "akka-slf4j_2.11" % "2.5.4"

//Removed the Test flag
libraryDependencies += "ch.qos.logback" % "logback-classic" % "1.1.7"

<强> logback.xml

 <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>akka.log</file>
         <append>true</append>
         <encoder>
             <pattern>%date{yyyy-MM-dd} %X{akkaTimestamp} %-5level[%thread] %logger{1} - %msg%n</pattern>
         </encoder>
     </appender>

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

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

<强> application.conf

 akka {
   loggers = ["akka.event.slf4j.Slf4jLogger"]
   logging-filter = "akka.event.slf4j.Slf4jLoggingFilter"
   log-config-on-start = on
   loglevel = "DEBUG"
 }

<强> Reader.scala

 import akka.actor.{Actor, ActorLogging}

 class Reader extends Actor with ActorLogging {

   override def receive = {
     case _ => log.info("Message received")
   }
 }

<强> Main.scala

 import akka.actor.{ActorRef, ActorSystem, Props}

 object Main {
   def main(args: Array[String]): Unit = {
     implicit val system: ActorSystem = ActorSystem("reader-system")

     val ref: ActorRef = system.actorOf(Props(new Reader))

     //send message to actor
     ref ! "message"

   }

 }

使用此配置，您应该能够运行Main.scala，并在Message received和std out中查看Log file日志。

希望这有帮助！

Akka slf4j不工作

1 个答案: