log4j生成的日志保存到项目WEB-INF下

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原创最新推荐文章于 2026-06-06 09:17:01 发布 4.9k 阅读 AI 写同款· GEO 优化 ›

log4j 配置日志文件，把日志信息输出到项目的某个文件夹下 log4j 配置日志文件，把日志信息输出到项目的某个文件夹下，能把当前的日志输出到项目下制定的某文件夹，只要到web.xml配置log4j_save保存日志文件立即下载

log4j.properties文件

${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

web.xml文件标红文字，注意加入log4j监听器

<?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>

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