（转自：https://blog.csdn.net/zhiyuzhe/article/details/78850238）
升级到spring5.0，发现之前web.xml 里配置的log监听Log4jConfigListener被spring废弃了，百度了一下，没有发现答案。 这个是web.xml之前的配置：
<context-param> <param-name>log4jConfigLocation</param-name> <param-value>classpath:log4j.properties</param-value> </context-param> <context-param> <param-name>webAppRootKey</param-name> <param-value>webApp.root</param-value> </context-param> <context-param> <param-name>log4jRefreshInterval</param-name> <param-value>6000</param-value> </context-param> <listener> <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class> </listener>Spring5.0的api里已经没有这个方法了，切换到版本4.3.13，发现原文是这么说的。spring建议用log4j2 来替换这个类。以下为官方原文:
Deprecated. as of Spring 4.2.1, in favor of Apache Log4j 2 (following Apache's EOL declaration for log4j 1.x) @Deprecated public class Log4jConfigListener extends java.lang.Object implements ServletContextListener于是看了一下log4j2，实现过程记录一下： 首先引入全新的log4j2 依赖jar包
<dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-api</artifactId> <version>2.10.0</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.10.0</version> </dependency> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-web</artifactId> <version>2.9.1</version> </dependency>web.xml 的配置如下
<!-- log4j2-begin --> <listener> <listener-class>org.apache.logging.log4j.web.Log4jServletContextListener</listener-class> </listener> <filter> <filter-name>log4jServletFilter</filter-name> <filter-class>org.apache.logging.log4j.web.Log4jServletFilter</filter-class> </filter> <filter-mapping> <filter-name>log4jServletFilter</filter-name> <url-pattern>/*</url-pattern> <dispatcher>REQUEST</dispatcher> <dispatcher>FORWARD</dispatcher> <dispatcher>INCLUDE</dispatcher> <dispatcher>ERROR</dispatcher> </filter-mapping> <!-- log4j2-end -->src/main/resources`目录下新增log4j2.xml 文件，这个文件名是官方默认的
<?xml version="1.0" encoding="UTF-8"?> <Configuration status="OFF" monitorInterval="1800"> <properties> <property name="LOG_HOME">/WEB-INF/logs</property> <property name="FILE_NAME">finance-pay</property> </properties> <Appenders> <Console name="Console" target="SYSTEM_OUT"> <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" /> </Console> <RollingFile name="running-log" fileName="${LOG_HOME}/${FILE_NAME}.log" filePattern="${LOG_HOME}/$${date:yyyy-MM}/${FILE_NAME}-%d{yyyy-MM-dd}-%i.log.gz" immediateFlush="true"> <PatternLayout pattern="