<dependencies>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
</dependency>
</dependencies>
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn">
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{ISO8601} [%t] %-5level %logger{36} - %msg%n"/>
</Console>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="Console"/>
</Root>
</Loggers>
</Configuration>
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class MyClass {
private static final Logger logger = LogManager.getLogger(MyClass.class);
public static void main(String[] args) {
logger.info("Start application");
// Some code here
logger.debug("Debug message");
// Some more code
logger.error("Error message");
logger.info("End application");
}
}
import org.apache.logging.log4j.core.config.Configurator;
public class Main {
public static void main(String[] args) {
Configurator.initialize(null, "path/to/log4j2.xml");
// Some code here
logger.info("Application started");
// More code
logger.info("Application ended");
}
}
