maven log4j setting

1 step : pom.xml

-> add jar setting

<dependency>

<groupId>log4j</groupId>

<artifactId>log4j</artifactId> <version>1.2.17</version>

</dependency>

2 step : create config folder (source folder)

(root directory )

3 step : create properties file (log4j.properties)

–>

# Root logger option log4j.rootLogger=debug, stdout, logfile #log4j.rootLogger=info, stdout, logfile # Direct log messages to stdout log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%5p (%C{2}:%L) – %m%n

# Direct log message to log file log4j.appender.logfile=org.apache.log4j.DailyRollingFileAppender log4j.appender.logfile.DatePattern=’.’yyyy-MM-dd log4j.appender.logfile.File=./application.log log4j.appender.logfile.layout=org.apache.log4j.PatternLayout log4j.appender.logfile.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss}] %5p (%C{2} – %M:%L) – %m%n log4j.appender.logfile.Append=true

4 step :

–> sampe source code

public class App {

private final Logger log = Logger.getLogger(App.class);

public void logTest(String msg) {

try {

log.info(msg); log.debug(msg+ "debug :::::::: ");

} catch (Exception e) {

log.error("got error e");

}

}

public static void main( String[] args ) {

App app = new App(); app.logTest("log Test Opps …… "); System.out.println( "pyn World!" ); app.logTest("pyn World! dfsdfasd….. ");

}

}

—> out consol window

INFO (ETEService_v3.App:19) – log Test Opps ……

DEBUG (ETEService_v3.App:20) – log Test Opps …… debug :::::::: pyn World! INFO (ETEService_v3.App:19) – pyn World! dfsdfasd….. DEBUG (ETEService_v3.App:20) – pyn World! dfsdfasd….. debug :::::::