Log4J: Properties and XML

Personally I prefer the XML instead of the properties file, but...
On this case I was having some trouble with my App server (WebLogic) - it wasn't loading my log4.xml, so I had to come up with a workaround: by using a propeties file.

This is more a look and learn than look and follow this steps. Because by looking to my XML file you'll see the equivalent in properties file, maybe this will help you when you have to write one or another. <?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration xmlns:log4j = "http://jakarta.apache.org/log4j/"> <!-- ===console Appender=== --> <appender name = "console" class = "org.apache.log4j.ConsoleAppender"> <layout class = "org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="[%d{dd-MM-yy HH:mm:ss,SSS}] [%t] %-5p (%50c{10}-%30M:%4L) -> %m%n"/> </layout> </appender> <!-- ===spring Appender=== --> <appender name = "spring" class = "org.apache.log4j.RollingFileAppender"> <param name = "File" value = "${sitexfer-testing}/log/spring.log"/> <param name = "MaxFileSize" value = "100KB"/> <param name = "MaxBackupIndex" value = "1"/> <layout class = "org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="[%d{dd-MM-yy HH:mm:ss,SSS}] [%t] %-5p (%50c{10}-%30M:%4L) -> %m%n"/> </layout> </appender> <!-- ===app Appender=== --> <appender name = "app" class = "org.apache.log4j.RollingFileAppender"> <param name = "File" value = "${sitexfer-testing}/log/app.log"/> <param name = "MaxFileSize" value = "100KB"/> <param name = "MaxBackupIndex" value = "1"/> <layout class = "org.apache.log4j.PatternLayout"> <param name = "ConversionPattern" value = "[%d{dd-MM-yy HH:mm:ss,SSS}] [%t] %-5p (%50c{10}-%30M:%4L) -> %m%n"/> </layout> </appender> <!--LOGGERS: App--> <logger name = "com.bofa.sitexfer.web" additivity = "false"> <level value = "DEBUG"/> <appender-ref ref = "console"/> </logger> <!--LOGGERS: Framework--> <logger name = "org.springframework" additivity = "false"> <level value = "INFO"/> <appender-ref ref = "spring"/> <appender-ref ref = "console"/> </logger> <logger name = "org.springframework.web" additivity = "false"> <level value = "INFO"/> <appender-ref ref = "spring"/> <appender-ref ref = "console"/> </logger> <!--ROOT--> <root> <level value = "INFO"/> <appender-ref ref = "console"/> </root> </log4j:configuration> #Default logging level and Appenders to be used log4j.rootLogger=DEBUG, console, app, spring #Console log4j.appender.console=org.apache.log4j.ConsoleAppender log4j.appender.console.layout=org.apache.log4j.PatternLayout log4j.appender.console.layout.ConversionPattern=[%d{dd-MM-yy HH:mm:ss,SSS}] [%t] %-5p (%50c{10}-%30M:%4L) -> %m%n #Level of DEBUG log4j.logger.com.bofa.sitexfer.web=DEBUG log4j.logger.org.springframework=INFO #app Appender log4j.appender.app.layout=org.apache.log4j.PatternLayout log4j.appender.app.layout.ConversionPattern=[%d{dd-MM-yy HH:mm:ss,SSS}] [%t] %-5p (%50c{10}-%30M:%4L) -> %m%n log4j.appender.app=org.apache.log4j.RollingFileAppender log4j.appender.app.File=/logs/app.log log4j.appender.app.MaxFileSize=100KB log4j.appender.app.MaxBackupIndex=1 #spring Appender log4j.appender.spring.layout=org.apache.log4j.PatternLayout log4j.appender.spring.layout.ConversionPattern=[%d{dd-MM-yy HH:mm:ss,SSS}] [%t] %-5p (%50c{10}-%30M:%4L) -> %m%n log4j.appender.spring=org.apache.log4j.RollingFileAppender log4j.appender.spring.File=/logs/spring.log log4j.appender.spring.MaxFileSize=100KB log4j.appender.spring.MaxBackupIndex=1