log4j生成的日志保存到项目WEB-INF下

${project}在web.xml里面配置

log4j.rootLogger=INFO, stdout,logfile
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p - %m%n
log4j.appender.logfile=org.apache.log4j.RollingFileAppender
log4j.appender.logfile.File=${project}/WEB-INF/logs/tjsjbzlog.log
log4j.appender.logfile.Append=true
log4j.appender.logfile.MaxFileSize=1000KB
log4j.appender.logfile.MaxBackupIndex=1
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d %p - %m%n

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <display-name></display-name>
<!-- 配置log4j -->
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>project</param-value><!-- log4j的配置文件里可以用${project}来表示刚刚设进去的系统变量 -->
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/classes/log4j.properties</param-value><!-- 配置文件路径 -->
</context-param>
<context-param>
<param-name>log4jRefreshInterval</param-name><!-- 默认重新加载配置文件时间 -->
<param-value>3000</param-value>
</context-param>
<!-- 加载spring配置文件 -->
<!--ContextLoader 加载 contextConfigLocation 用以初始化WebApplicationContext -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>com.hhkj.tjsjbz.listener.ManagerContentListener</listener-class>
</listener>
<!-- log4j监听器 -->
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<!-- 加载spring监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 加载spring的Filter代理，指向BeanID为securityFilter的Filter -->
<!-- 		<filter>
<filter-name>securityFilter</filter-name>
<filter-class>com.hhkj.tjsjbz.filter.SecurityFilter</filter-class>
</filter>
Filter Mapping(对Action的过滤须放在Struts的配置之前，不然不生效)
<filter-mapping>
<filter-name>securityFilter</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>securityFilter</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping> -->
<!-- session超时定义,单位为分钟 -->
<session-config>
<session-timeout>60</session-timeout>
</session-config>

<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
</filter-class>
<init-param>
<param-name>actionPackages</param-name>
<param-value>com.hhkj.tjsjbz.action</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<welcome-file-list>
<welcome-file>login.action</welcome-file>
</welcome-file-list>
</web-app>