java - How to write different logs in different files with log4j2 (MDC in xml)? -

now i'm using structure this: appender:

<rollingfile name="user.log" append="true" filename="users/%mdc{username}.txt"                  filepattern="users/archive/%mdc{username}-%d{mm-dd-yyyy}-%i.txt.gz">         <patternlayout pattern="%-5p %d{mmmm-dd hh:mm:ss} %x: %c - %m%n"/>         <policies>             <timebasedtriggeringpolicy/>             <sizebasedtriggeringpolicy size="50 mb"/>         </policies>     </rollingfile> 

logger:

    <appender-ref ref="user.log">         <threadcontextmapfilter onmatch="accept" onmismatch="deny" operator="or">             <keyvaluepair key="username" value="%x{username}"/>             <keyvaluepair key="ip" value="%x{ip}"/>         </threadcontextmapfilter>     </appender-ref> 

but doesn't work mdc keys. how use mdc keys in xml config rollingfileappender?

take @ routingappender. maybe can started:

<?xml version="1.0" encoding="utf-8"?> <configuration status="debug" name="myapp" packages="">   <appenders>     <routing name="routing">       <routes pattern="$${ctx:username}">         <route>           <rollingfile name="user.log" append="true" filename="users/${ctx:username}.txt"              filepattern="users/archive/${ctx:username}-%d{mm-dd-yyyy}-%i.txt.gz">             <patternlayout>               <pattern>%d{iso8601} [%t] %p %c %l - %m%n</pattern>             </patternlayout>             <policies>               <timebasedtriggeringpolicy/>               <sizebasedtriggeringpolicy size="50 mb"/>             </policies>           </rollingfile>         </route>       </routes>     </routing>   </appenders>    <loggers>     <root level="trace">       <appender-ref ref="routing" level="debug" />     </root>   </loggers> </configuration>