> I'm not sure about bridging log4j1 to log4j2 gives us any benefit from > enduser point of view, and most the people were using slf4j and log4j 1 for > sure, with the addition of log4j2 the chain is getting complex for a simple > logging. > >
In our apps we have been using slf4j and log4j1 for some time. As log4j1 has been deprecated and struts 2.5 moved to log4j2-api we switched our logging impl to slf4j2 and created appropriate xml config files. To also grab log messages via slf4j we added log4j-slf4j-impl. See: https://logging.apache.org/log4j/2.x/log4j-slf4j-impl/ That means our logging pipeline looks like this: slf4j-api ----> log4j-slf4j-impl -\ |--> log4j-core (v2) log4j-api (v2) -------------------/ > Why can't struts2 can make a log wrapper around it based on the > available logging lib? That has been discussed on -dev mailing list. Reasons that I remember: - log4j2 is backed by the ASF - log4j2 can do everything slf4j can do - There are all kinds of bridging libraries to connect with other logging APIs and implementations Regards, Christoph > On Mon, Jul 18, 2016 at 9:14 PM, Adam Brin <ab...@digitalantiquity.org> > wrote: > > > Hi Emi, > > You’ll definitely need a log4j2.xml, and you may need to change the > > listeners and also omit some other log4j 1.0 libraries from your pom. We > > did the upgrade last year and found the docs on the log4j2 website useful, > > you might start there. > > > > best of luck. > > > > -- > > _________________________________________________________ > > Adam Brin > > Director of Technology, Digital Antiquity > > 480.965.1278 > > > > > On Jul 18, 2016, at 8:37 AM, Emi <em...@encs.concordia.ca> wrote: > > > > > >> try the bridge to log4j1 > > >> https://logging.apache.org/log4j/log4j-2.2/log4j-1.2-api/index.html > > >> > > > > > > Updated to: > > > . log4j-api-2.6.2.jar > > > . log4j-core-2.6.2.jar > > > . log4j-web-2.6.2.jar > > > . log4j-1.2-api-2.6.2.jar > > > . commons-logging-1.2.jar > > > . struts2.5.2. jars > > > > > > Didn't change web.xml and log4j.xml. > > > > > > But log files were NOT auto-generated by tomcat7.0.70. > > > > > > Is there something that I missed to add/config? > > > > > > Thanks a lot! > > > -- > > > web.xml > > > ... > > > <listener> > > > > > <listener-class>org.springframework.web.util.Log4jConfigListener</ > listener-class> > > > </listener> > > > ... > > > <context-param> > > > <param-name>log4jExposeWebAppRoot</param-name> > > > <param-value>false</param-value> > > > </context-param> > > > > > > <context-param> > > > <param-name>log4jConfigLocation</param-name> > > > <param-value>/WEB-INF/classes/log4j.xml</param-value> > > > </context-param> > > > ... > > > > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > > > For additional commands, e-mail: user-h...@struts.apache.org > > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > > For additional commands, e-mail: user-h...@struts.apache.org > > > > This Email was scanned by Sophos Anti Virus
