log4j

调试日志 log4j.jar 下载地址http://www.apache.org/dyn/closer.cgi/logging/log4j/1.2.17/log4j-1.2.17.zip
配置文件mybatis\mybatis-3-mybatis-3.3.0\src\test\java\log4j.properties
直接放在src下
修改：  log4j.rootLogger=DEBUG,Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p
[%c] - %m%n

log4j.logger.org.apache=INFO

log4j.rootLogger = INFO,A3,CONSOLE

#日志最低的输出级别
log4j.appender.A3.Threshold=INFO
log4j.appender.A3.encoding=UTF-8
#每天产生一个文件DailyRollingFileAppender
log4j.appender.A3 = org.apache.log4j.DailyRollingFileAppender
log4j.appender.A3.File=log/my.log
#当有日志时立即输出，默认是true
log4j.appender.A3.ImmediateFlush=true
log4j.appender.A3.DatePattern='_'yyyy-MM-dd
#日志布局方式
log4j.appender.A3.layout=org.apache.log4j.PatternLayout
#日志文件中日志的格式
log4j.appender.A3.layout.ConversionPattern=%-d{yyyy/MM/dd HH:mm:ss} %-5p [%c] - %m%n

#这里使用org.apache.log4j.ConsoleAppender指定要把日志输出到控制台
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.Threshold=DEBUG
#输出目标是 控制台
log4j.appender.CONSOLE.Target=System.out
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%-d{yyyy/MM/dd HH:mm:ss} %-5p [%c] - %m%n

String logFileName=CountTest.class.getResource("/log4j.properties").toString();
PropertyConfigurator.configure(logFileName.substring(5,logFileName.length()));