Simple Log4j Configuration Log4j is a simple logging framework. you can download the latest version of log4j ( Download ). After download finished add jar in class path log4j-x.x.x.jar. Create a new HelloLogger.java file. package com.abc.helloworld; import org.apache.log4j.BasicConfigurator; import org.apache.log4j.Logger; public class HelloLogger { static final Logger logger = Logger.getLogger(HelloLogger.class); public static void main(String[] args) { BasicConfigurator.configure(); logger.debug("Hello World!"); } } Log4j available methods are info(), warn(), error() and fatal() , logger levels are DEBUG, INFO, WARN, ERROR, FATAL . Following example shows usage of method. package com.abc.helloworld; import org.apache.log4j.BasicConfigurator; import org.apache.log4j.Logger; public class HelloLogger { static final Logger logger = Logger.getLogger(HelloLogger.class); public static void main(String[] args) { BasicConfigurator.configure(); logger.debug("debug message"); logger.info("info message"); logger.warn("warn message"); logger.error("error message"); logger.fatal("fatal message"); } } Output of the above code. 0 [main] DEBUG com.abc.helloworld.HelloLogger - debug message 0 [main] INFO com.abc.helloworld.HelloLogger - info message 0 [main] WARN com.abc.helloworld.HelloLogger - warn message 0 [main] ERROR com.abc.helloworld.HelloLogger - error message 0 [main] FATAL com.abc.helloworld.HelloLogger - fatal message Enjoy log4j in you web application.