pro
log4j.appender.atguigu.File=org.apache.log4j.DailyRollingFileAppender log4j.appender.atguigu.File.file=d:\atguigu.log log4j.appender.atguigu.File.DatePattern=.yyyy-MM-dd log4j.appender.atguigu.File.layout=org.apache.log4j.PatternLayout log4j.appender.atguigu.File.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p (%C{1}:%M) - %m%n log4j.appender.atguigu.Console=org.apache.log4j.ConsoleAppender log4j.appender.atguigu.Console.layout=org.apache.log4j.PatternLayout log4j.appender.atguigu.Console.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p (%C:%M) - %m%n log4j.rootLogger=warn,atguigu.Console,atguigu.File #u540eu9762u8fd8u6709u5148u4e0du770b #log4j.logger.com.atguigu=warn,atguigu.Console,atguigu.File #log4j.logger.com.atguigu.dao=debug,atguigu.Console,atguigu.File
xml:
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd"> <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/"> <appender name="log.console" class="org.apache.log4j.ConsoleAppender"> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d{HH:mm:ss,SSS} %5p (%C{1}:%M) - %m%n" /> </layout> <!-- <filter class="org.apache.log4j.varia.LevelRangeFilter"> <param name="levelMin" value="warn" /> <param name="levelMax" value="warn" /> <param name="AcceptOnMatch" value="true" /> </filter> --> </appender> <appender name="log.file" class="org.apache.log4j.DailyRollingFileAppender"> <param name="File" value="D:\atguigu4XML.log" /> <param name="Append" value="true" /> <param name="DatePattern" value="'.'yyyy-MM-dd" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d{HH:mm:ss,SSS} %5p (%C{1}:%M) - %m%n" /> </layout> <!-- <filter class="org.apache.log4j.varia.LevelRangeFilter"> <param name="levelMin" value="info" /> <param name="levelMax" value="info" /> <param name="AcceptOnMatch" value="true" /> </filter> --> </appender> <!-- --> <logger name="com.atguigu" additivity="false"> <level value="info" /> <appender-ref ref="log.console" /> <appender-ref ref="log.file" /> </logger> <logger name="com.atguigu.dao" additivity="false"> <level value="debug" /> <appender-ref ref="log.console" /> <appender-ref ref="log.file" /> </logger> <!-- --> <root> <level value="debug" /> <appender-ref ref="log.console" /> <appender-ref ref="log.file" /> </root> </log4j:configuration>
%m 输出代码中指定的消息
%p 输出优先级,即DEBUG,INFO,WARN,ERROR,FATAL
%r 输出自应用启动到输出该log信息耗费的毫秒数
%c 输出所属的类目,通常就是所在类的全名
%t 输出产生该日志事件的线程名
%n 输出一个回车换行符,Windows平台为“
”,Unix平台为“
”
%d 输出日志时间点的日期或时间,默认格式为ISO8601,也可以在其后指定格式,
比如:%d{yyyy-MM-dd HH:mm:ss,SSS},输出类似:2015-12-20 18:35:51,768