使用log4j在mule中自定义日志文件名

Question

I'm trying to change the log file name generated by mule by modifying the log4j.xml to have the appropriate appender.

Here 'sa snippet from the log4j.xml

 <RollingFile name="Rolling-Async-Perf" fileName="/usr/local/mule/logs/${app_name}.log"
            filePattern="./logs/${date:yyyy-MM}/perf-%d{yyyy-MM-dd}-%i.log.gz"  immediateFlush="false">

Here's how I set the value of application_name in the class that loads the properties related for log4j.xml

System.setProperty("app_name", "AppName");

However, the file generated has the name ${app_name}.log rather than AppName.log .

Any thoughts on how I could get mule to pick up the name of the file based on the custom property in mule?

Answer 1

Two options are:

1) add a property in the MULE_HOME/conf/wrapper.conf file for example:

wrapper.java.additional.15=-Dapp_name=AppName

or 2) inside the Configuration element of your log4j2.xml file example here :

<Properties>
  <Property name="app_name">AppName</Property>
</Properties>