LOG4J 操作记录(简易版)

先创建一个java项目(基础项目就行)

记得要将架包导入

在根目录创建一个

log4j.rootLogger=INFO,appender1,appender2,appender3  
log4j.logger.org.springframework=ERROR  
log4j.appender.appender1=org.apache.log4j.ConsoleAppender  
log4j.appender.appender1.layout=org.apache.log4j.PatternLayout  
log4j.appender.appender1.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss:SSS}[%p]: %m%n  
log4j.appender.appender2=org.apache.log4j.FileAppender  
log4j.appender.appender2.File=log/IceColdMonitor.log  
log4j.appender.appender2.layout=org.apache.log4j.PatternLayout
log4j.appender.appender2.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss:SSS}[%p]: %m%n
#database  
log4j.appender.appender3=org.apache.log4j.jdbc.JDBCAppender
log4j.appender.appender3.driver=com.mysql.jdbc.Driver
log4j.appender.appender3.URL=jdbc:mysql://127.0.0.1:3306/m2_craft
log4j.appender.appender3.user=root
log4j.appender.appender3.password=123123
log4j.appender.appender3.sql=INSERT INTO operation_record(operation_record_id,operation_object_id,operation_user_id,operation_user,operation_time,operation_describe) VALUES ('%X{operationRecordId}','%X{operationObjectId}','%l','%t','%d{yyyy-MM-dd HH:mm:ss}','%m')

然后看看测试

import org.apache.log4j.Logger;
import org.apache.log4j.MDC;
  
public class Test {  
    public static void main(String[] args) {  
  
		Logger logger = Logger.getLogger(Test.class);
		MDC.put("operationRecordId", "101010101000000");
        logger.info("test logger info");  
		//logger.debug("test logger debug");
		//logger.error("test logger error");
		//logger.fatal("test logger fatal");
	}
}

运行一下

查看一下数据库

下面来介绍一下LOG4J加入数据库的参数

INSERT INTO operation_record(operation_record_id,operation_object_id,operation_user_id,operation_user,operation_time,operation_describe) VALUES ('%X{operationRecordId}','%X{operationObjectId}','%l','%t','%d{yyyy-MM-dd HH:mm:ss}','%m')

%X{operationRecordId}
这个%X是自定义参数,{}里面的自定义参数名称.
%d{yyyy-MM-dd HH:mm:ss}
这个**%d**是定义时间参数,{}里面是参数的格式
%l 是记录操作数据存储的文件方法位置
%t 是记录操作数据存储的方法名称,
%m 是打印的内容
%p 是记录打印数据的等级(info,debug,error等)
%c 是记录操作数据存储的文件名称