spring log4j properties 配置

log4j.rootLogger=debug, stdout, Rlog4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.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%nlog4j.appender.R=org.apache.log4j.RollingFileAppenderlog4j.appender.R.File=example.loglog4j.appender.R.MaxFileSize=100KB# Keep one backup filelog4j.appender.R.MaxBackupIndex=1log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
web.xml 配置  Log4jConfigListener 第一个,listener.
<listener>        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class></listener>
<context-param>        <param-name>log4jConfigLocation</param-name>        <param-value>/WEB-INF/log4j.properties</param-value></context-param>