问在机器人框架中如何在执行过程中登录到控制台

EN

import org.apache.log4j.Logger;

public class Sample
{
private static final Logger logger = Utils.getLogger(Sample.class);

@RobotKeyword("Print Message")
@ArgumentNames({"message"})
public void printMessage(String message)
   {
    logger.info("I'm inside");
   }
}

import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;

public class Utils
{
    public static final Logger logger = getLogger(Utils.class);

    public static Logger getLogger(Class<?> clazz)
    Logger logger = Logger.getLogger(className.getClass());
    PropertyConfigurator.configure("/src/main/resources/log4j.properties");
    return logger;
}

log4j.rootLogger=DEBUG, Stdout, file
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=%d %-5p [%t] %F:%L %m%n
log4j.appender.Stdout.ImmediateFlush=true
log4j.appender.Stdout.follow=true