spring 中使用 log4j

一、在web.xml中配置：

???1、 配置项目路径，如果不配置webAppRootKey属性，默认的为webapp.root，为了避免项目冲突，建议配置，在log4j配置文件中就可以使用${orc.root}表示web目录绝对路径

?<context-param>??<param-name>webAppRootKey</param-name>??<param-value>orc.root</param-value>?</context-param>

<!--由spring装载log4j配置文件-->

<context-param>??<param-name>log4jConfigLocation</param-name>??<param-value>/WEB-INF/log4j.properties</param-value>?</context-param>

<!--Spring默认刷新Log4j配置文件的间隔,单位为millisecond--><context-param><param-name>log4jRefreshInterval</param-name><param-value>60000</param-value></context-param>

<!-- Web 项目 Spring 加载 Log4j 的监听 -->?

<listener>??<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>?</listener>

?

2、编写log4j.properties文件

log4j.rootLogger=INFO,CONSOLE,ROLLING_FILE#log4j.rootLogger=ERROR,ROLLING_FILE

#################### Console Appender###################log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppenderlog4j.appender.CONSOLE.Target=System.outlog4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayoutlog4j.appender.CONSOLE.layout.ConversionPattern=[%p] %d %c - %m%n

######################### Rolling File########################log4j.appender.ROLLING_FILE=org.apache.log4j.RollingFileAppender

#orc.root表示应用根目录log4j.appender.ROLLING_FILE.File=${orc.root}/logs/orc.loglog4j.appender.ROLLING_FILE.Append=truelog4j.appender.ROLLING_FILE.MaxFileSize=5000KBlog4j.appender.ROLLING_FILE.MaxBackupIndex=100log4j.appender.ROLLING_FILE.layout=org.apache.log4j.PatternLayoutlog4j.appender.ROLLING_FILE.layout.ConversionPattern=[%p] %d %c - %m%n

log4j.logger.org.springframework.transaction=INFOlog4j.logger.com.longtop.bi=DEBUGlog4j.logger.com.ibatis=INFOlog4j.logger.java.sql=DEBUG# Ignore DB2 read-only Warninglog4j.logger.org.hibernate.util.JDBCExceptionReporter=ERROR