Java. Lang. Classnotfoundexception: Net. Logstash. Logback. Encoder. Logstashencoder
I Am New to Scala and I Am Trying to Generate Logs in Json Format for an Existing Sbt Project, but I Am Getting the Error Below - Java. Lang...
I am new to Scala and I am trying to generate logs in json format for an existing sbt project, but i am getting the error below -
java.lang.ClassNotFoundException: net.logstash.logback.encoder.LogstashEncoder
I have added these dependencies to the build.sbt
"net.logstash.logback" % "logstash-logback-encoder" % "4.11",
"ch.qos.logback" % "logback-core" % "1.2.3",
"ch.qos.logback" % "logback-access" % "1.2.3"
and my logback.xml looks like this -
<configuration>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>app.log</file>
<append>true</append>
<!--<encoder>
<pattern>%date{yyyy-MM-dd} %X{akkaTimestamp} %-5level[%thread] %logger{1} - %msg%n</pattern>
</encoder>-->
<encoder class="net.logstash.logback.encoder.LogstashEncoder"/>
</appender>
<root level="DEBUG">
<appender-ref ref="FILE"/>
</root>
</configuration>
Scala Version 2.12.3 SBT Version 1.0.3
Where I might be going wrong, any help will be appreciated .
1 Answer
I got the same problem in Jenkins. But I was not doing the logging in json format. I used akka-http, which had SLF4J/logback for logging.
And this logback.xml fixed my problem:
<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>
Not sure will it fix your problem or not. Would love to know more details about the problem.
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