log4j.appender.file=org.apache.log4j.FileAppender log4j.appender.file.File=/var/log/myapp.log log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%-4r [%t] %-5p %c %x - %m%n log4j.rootLogger=INFO, file import org.apache.log4j.Logger; public class MyApp { private static final Logger logger = Logger.getLogger(MyApp.class); public static void main(String[] args) { } }