log4j.rootLogger=DEBUG, console log4j.appender.console=org.apache.log4j.ConsoleAppender log4j.appender.console.Target=System.out log4j.appender.console.layout=org.apache.log4j.PatternLayout log4j.appender.console.layout.ConversionPattern=%d [%t] %-5p %c %x - %m%n log4j.appender.file=org.apache.log4j.FileAppender log4j.appender.file.File=/path/to/logFile.log log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%d [%t] %-5p %c %x - %m%n log4j.appender.file.Threshold=INFO log4j.logger.com.example.package=DEBUG import org.apache.log4j.Logger; import org.apache.log4j.Level; public class MyClass { private static final Logger logger = Logger.getLogger(MyClass.class); public static void main(String[] args) { logger.setLevel(Level.DEBUG); logger.trace("Trace message"); logger.debug("Debug message"); logger.info("Info message"); logger.warn("Warn message"); logger.error("Error message"); logger.fatal("Fatal message"); } }