制作日志的程序

pom.xml

<dependency>

<groupId>log4j</groupId>

<artifactId>log4j</artifactId>

<version>1.2.17</version>

</dependency>

log4j.properties

log4j.rootLogger=INFO,log

log4j.appender.log = org.apache.log4j.RollingFileAppender

log4j.appender.log.layout = org.apache.log4j.PatternLayout

log4j.appender.log.layout.ConversionPattern = [%-5p][%-22d{yyyy/MM/dd HH:mm:ssS}][%l]%n%m%n

log4j.appender.log.Threshold = INFO

log4j.appender.log.ImmediateFlush = TRUE

log4j.appender.log.Append = TRUE

log4j.appender.log.File = G:/temp/access.log

#log4j.appender.log.File = /root/hello/access.log

log4j.appender.log.MaxFileSize = 10KB

log4j.appender.log.MaxBackupIndex = 20

LogGenerator.java

package com.fengqing;

import org.apache.log4j.Logger;

import java.util.Date;

public class LogGenerator {

public static void main(String[] args) throws Exception{

Logger logger = Logger.getLogger(LogGenerator.class);

for (int i = 1; i <= 500; i++) {

logger.info("==>" + new Date().toString());

Thread.sleep(500);

}

}

}