• September 9, 2014
  • Log4j
  • Comments Off on Log4j example using log4j properties file

Log4j example using log4j properties file

Let us discuss the use of Log4j with the help of below example. In this example we use log4j.properties file for Log4j configurations.

Example:

Log4jTest.java

import org.apache.log4j.Logger;
 
/**
 * This class is used to show the use of 
 * Log4j with the log4j.properties file.
 * @author javawithease
 */
public class Log4jTest {
	//Get the Logger object.
	private static Logger log = Logger.getLogger(Log4jTest.class);
 
	public static void main(String[] args) {	
		//logger messages
		log.debug("Log4j debug message test.");
		log.info("Log4j info message test.");		
	}
}

log4j.properties

#log4j.rootCategory=INFO,DEBUG,A1,LFS
log4j.rootLogger=DEBUG, CA
 
#Set Console Appender
log4j.appender.CA=org.apache.log4j.ConsoleAppender
#CA uses PatternLayout
log4j.appender.CA.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%m%n

Output:

Log4j debug message test.
Log4j info message test.

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