<dependency>
<groupId>org.ops4j.pax.logging</groupId>
<artifactId>pax-logging-log4j1</artifactId>
<version>1.11.5</version>
</dependency>
properties
log4j.rootLogger=DEBUG, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
import org.ops4j.pax.logging.LogService;
import org.ops4j.pax.logging.PaxLoggingService;
import java.util.HashMap;
import java.util.Map;
public class Application {
public static void main(String[] args) {
Map<String, Object> config = new HashMap<>();
config.put("org.ops4j.pax.logging.property.file", "log4j.properties");
PaxLoggingService paxLoggingService = new org.ops4j.pax.logging.intern.log4j1.InternalLog4JLoggerFactory();
paxLoggingService.setLogService(new LogService() {
@Override
public void log(int level, String message, Throwable throwable) {
System.out.println("[" + level + "] " + message);
if (throwable != null) {
throwable.printStackTrace();
}
}
});
paxLoggingService.updated(config);
}
}
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class MyClass {
private static final Logger logger = LoggerFactory.getLogger(MyClass.class);
public void doSomething() {
logger.debug("This is a debug message");
logger.info("This is an info message");
logger.error("This is an error message");
}
}
