log4j2 按天分日志
http://blog.csdn.net/zhang168/article/details/46814489
log4j2的按天分日志文件
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- <**RollingFile name=”error_appender” fileName=”${LOG_HOME}/error.log” filePattern=”${LOG_HOME}/error-%d{yyyy-MM-dd}.log”>**
- <**PatternLayout pattern=”%-d{yyyy-MM-dd HH
ss} [%thread] %m%n”/>**
- <**Policies**>
- <**TimeBasedTriggeringPolicy modulate=”true” interval=”1”/>**
- </**Policies**>
- </**RollingFile**>
按大小分
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- <**RollingFile name=”error_appender” fileName=”${LOG_HOME}/error.log” filePattern=”${LOG_HOME}/error-%d{yyyy-MM-dd}-%i.log.gz”>**
- <**PatternLayout pattern=”%-d{yyyy-MM-dd HH
ss} [%thread] %m%n”/>**
- <**SizeBasedTriggeringPolicy size=”100 MB” />**
- </**RollingFile**>
按分钟分
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- <**RollingRandomAccessFile name=”_1min_appender” fileName=”${MINUTE_HOME}/minute” filePattern=”${MINUTE_HOME}/minute-%d{yyyy-MM-dd-HH-mm}.log”>**
- <**PatternLayout pattern=”%m%n”/>**
- <**Policies**>
- <**TimeBasedTriggeringPolicy interval=”1” modulate=”true” />**
- </**Policies**>
- </**RollingRandomAccessFile**>
关键点在于 filePattern后的日期格式,以及TimeBasedTriggeringPolicy的interval,日期格式精确到哪一位,interval也精确到哪一个单位
log4j2 设置同一类型日志文件个数
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- <**Appenders**>
- <**Console name=”Console” target=”SYSTEM_OUT”>**
- <**PatternLayout pattern=”[%-5p] %d %c - %m%n” />**
- </**Console**>
- <**File name=”File” fileName=”dist/my.log”>**
- <**PatternLayout pattern=”%m%n” />**
- </**File**>
- <**RollingFile** name=”RollingFile” fileName=”dist/my2.log”
- filePattern=”dist/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz”>
- <**PatternLayout pattern=”[%-5p] %d %c - %m%n” />**
- <**Policies**>
- <**TimeBasedTriggeringPolicy />**
- <**SizeBasedTriggeringPolicy size=”25 KB” />**
- </**Policies**>
- <**DefaultRolloverStrategy max=”20”/>**
- </**RollingFile**>
- </**Appenders**>
关键在于
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