参考文档：https://blog.csdn.net/yizhenn/article/details/53265355
1.创建日志表
CREATE TABLE `reslog` (
`LOGID` int(20) NOT NULL AUTO_INCREMENT,
`CLASS` varchar(200) DEFAULT NULL,
`METHOD` varchar(100) DEFAULT NULL,
`CREATETIME` date DEFAULT NULL,
`LOGLEVEL` varchar(50) DEFAULT NULL,
`MSG` varchar(4000) DEFAULT NULL,
PRIMARY KEY (`LOGID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
2.编写配置文件log4j.properties
log4j.rootLogger=DEBUG,CONSOLE,A
log4j.logger.mylogger=INFO,database //自定义一个日志 mylogger database是存储到数据库
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=DEBUG
log4j.appender.CONSOLE.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} -%-4r [%t] %-5p %x - %m%n
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.Encoding=utf-8
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayou
log4j.appender.A=org.apache.log4j.DailyRollingFileAppender
log4j.appender.A.File=${catalina.home}/logs/FH_log/PurePro_
log4j.appender.A.DatePattern=yyyy-MM-dd'.log'
log4j.appender.A.layout=org.apache.log4j.PatternLayout
log4j.appender.A.layout.ConversionPattern=[FH_sys] %d{yyyy-MM-dd HH\:mm\:ss} %5p %c{1}\:%L \: %m%n
log4j.appender.database=org.apache.log4j.jdbc.JDBCAppender
log4j.appender.database.Driver=com.mysql.jdbc.Driver
log4j.appender.database.URL=jdbc:mysql://数据库ip:3306/cmcat?useUnicode=true&characterEncoding=UTF-8
log4j.appender.database.user=root
log4j.appender.database.password=123456
log4j.appender.database.sql=insert into reslog (class,method,createtime,loglevel,msg) VALUES ('%C','%M','%d{yyyy-MM-dd hh:mm:ss}','%p','%m')
log4j.appender.database.layout=org.apache.log4j.PatternLayout
3.类中添加日志方法
