TL;DR
使用JsonLayout和嵌套的KeyValuePair在我的log4j2.xml配置中,日志消息为空。有什么想法吗?
Long Story
我正在使用Tomcat 8.5.43,并使用以下与日志记录相关的JAR包:
- jackson-annotations-2.9.7.jar
- jackson-core-2.9.7.jar
- jackson-databind-2.9.7.jar
- slf4j-api-1.7.25.jar
- jcl-over-slf4j-1.7.25.jar
- log4j-api-2.12.0.jar
- log4j-core-2.12.0.jar
- log4j-jul-2.12.0.jar
- log4j-slf4j-impl-2.12.0.jar
- tomcat-extras-juli-8.5.2.jar(作为/bin中的tomcat-juli.jar)
- tomcat-extras-juli-adapters-8.5.2.jar
- log4j-web-2.12.0.jar(在Web应用程序中)
并且使用下面的log4j2.xml配置文件:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
<Appenders>
<Console name="consoleappender" target="SYSTEM_OUT">
<JsonLayout compact="true" eventEol="true" stacktraceAsString="true" locationInfo="true">
<KeyValuePair key="foo" value="bar"/>
</JsonLayout>
</Console>
<Loggers>
<Root level="info">
<AppenderRef ref="consoleappender" />
</Root>
</Loggers>
</Configuration>
在setenv.sh文件中,我将classpath设置为:
CLASSPATH="$JAVA_HOME/lib/tools.jar\
:$CATALINA_HOME/lib/log4j-api.jar\
:$CATALINA_HOME/lib/log4j-core.jar\
:$CATALINA_HOME/lib/log4j-jul.jar\
:$CATALINA_HOME/lib/jackson-annotations.jar\
:$CATALINA_HOME/lib/jackson-core.jar\
:$CATALINA_HOME/lib/jackson-databind.jar"
使用额外的JVM参数运行Tomcat:
-Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager
-Dlog4j.configurationFile=file:log4j2.xml"
因此,最终应将所有Tomcat、JULI、Apache commons和Slf4j日志记录重定向到Log4J2。
不幸的是,我只看到了这个:{"logEvent":"","foo":"bar"}
而不是像下面这样的内容:
{"thread":"main","level":"INFO","loggerName":"org.apache.catalina.startup.VersionLoggerListener","message":"Server version: Apache Tomcat/8.5.43","endOfBatch":false,"loggerFqcn":"org.apache.logging.log4j.jul.ApiLogger","threadId":1,"source":{"class":"org.apache.juli.logging.impl.Jdk14Logger","method":"log","file":"Jdk14Logger.java","line":87},"threadPriority":5,"instant":{"epochSecond":1562919500,"nanoOfSecond":701000000}}
如果我删除KeyValuePair
,一切都能正常工作。
问题在哪里?