为什么不呢´你不能定义一个记录器并通过记录器打印输出吗？

public class Log4jExample{ 
     static Logger log = Logger.getLogger(
                  log4jExample.class.getName());

      public static void main(String[] args)  throws IOException,SQLException{
         log.debug("Hello this is an debug message");
         log.info("Hello this is an info message");
      }
 }