Mybatis用log4j输出日志,输出sql到控制台

log4jar包+log4j.properties百度云下载地址永久有效: https://pan.baidu.com/s/15WZ-lcBPgFa-a6lkTVVvYw

1 导入jar包(直接复制jar包到lib目录下,然后build path),然后新建log4j.properties文件:   百度云中有log4j的书写规范教程。

复制代码
log4j.rootLogger=INFO, stdout, R
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
#log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
# Print the date in ISO 8601 format
log4j.appender.stdout.layout.ConversionPattern=%d [%t] %-5p %c - %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=example.log
log4j.appender.R.MaxFileSize=100KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
# Print only messages of level WARN or above in the package com.foo.
log4j.logger.com.imooc=INFO
复制代码

2  创建工具类

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

    }

3 直接调用即可。

  比如:

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catch(Exception e){
            Log.logger.error(e.getMessage());
            e.printStackTrace();
        }

  

Log.logger.info(“你传入的参数”);

如果想在控制台打出sql语句或者一些数据库信息:要在mybatis.xml中配置:

<settings>
<setting name="logImpl" value="STDOUT_LOGGING"/>     
<settings>

 

 
posted @ 2019-10-29 11:40  门罗的魔术师  阅读(511)  评论(0编辑  收藏  举报