sample.java

Jsp开发系统日志详细操作实例,值得学习

package log4j;

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

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

    public static void main(String args[]) {
        PropertyConfigurator.configure("./my.properties");
        logger.debug("Here is DEBUG message ");
        logger.info("Here is INFO message");
        logger.warn("Here is WARN message");
        logger.error("Here is ERROR message");
        logger.fatal("Here is FATAL message");
    }
}