类 com.fr.third.apache.log4j.FileAppender的使用

使用FileAppender的程序包
程序包	说明
com.fr.third.apache.log4j	The main log4j package.
com.fr.third.apache.log4j.varia	Contains various appenders, filters and other odds and ends.

com.fr.third.apache.log4j中FileAppender的子类
限定符和类型	类和说明
`class`	`DailyRollingFileAppender` DailyRollingFileAppender extends `FileAppender` so that the underlying file is rolled over at a user chosen frequency.
`class`	`RollingFileAppender` RollingFileAppender extends FileAppender to backup the log files when they reach a certain size.

com.fr.third.apache.log4j.varia中FileAppender的子类
限定符和类型	类和说明
`class`	`ExternallyRolledFileAppender` This appender listens on a socket on the port specified by the Port property for a "RollOver" message.