Hello Jenny, Why are you setting the passing value of "logFileName" MDC? Just set it as a variable, see http://logback.qos.ch/manual/joran.html and search for "Variable substitution".
HTH, Jenny wrote: > Hi, I'm not sure if this is the preferred way or best practice... but what I > did was extend the RollingFileAppender and override the getFile() method. > > and this getFile() method retrieves / generates the log file name. > > please let me know if you have better solutions. > > thanks, > Jenny > > ============================================= > From: Jenny [EMAIL PROTECTED] > Subject: Re: [logback-user] Setting log filename during runtime > To: "logback users list" [email protected] > > Hello, > > How can i set the log filename set during the init() of my StartupServlet. > > I tried using MDC but it's not working for me. > > What happens is the file is not created. Instead a file with name > "%exp{logFileName}" \ > is created on my web server's bin directory. > > In my StartupServlet, I have this init method that calls MDC.put(). > > public void init() throws ServletException { > MDC.put("logFileName", "c:\\testlogs\\test.log"); > Logger log = LoggerFactory.getLogger(StartupServlet.class); > log.info("This should be logged"); > } > > In my logback.xml, I have a MDC.get(). > > <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> > <append>true</append> > <expression name="logFileName">MDC.get("logFileName")</expression> > <file>%exp{logFileName}</file> > ... > > I'm new with logback, thanks in advance for your help! I'm trying to follow > Ceki's \ > example in his blog > http://ceki.blogspot.com/2006/10/repated-configuration-with-joran. \ > html > > thanks, > jenny > > > > _______________________________________________ > Logback-user mailing list > [email protected] > http://qos.ch/mailman/listinfo/logback-user -- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch _______________________________________________ Logback-user mailing list [email protected] http://qos.ch/mailman/listinfo/logback-user
