log4j.rootLogger=DEBUG,console,Rlog4j.appender.console=org.apache.log4j.ConsoleAppenderlog4j.appender.console.threshold=INFOlog4j.appender.console.layout=org.apache.log4j.PatternLayoutlog4j.appender.R=org.apache.log4j.RollingFileAppenderlog4j.appender.R.Append=truelog4j.appender.R.File=main.loglog4j.appender.R.Threshold=DEBUGlog4j.appender.R.layout=org.apache.log4j.PatternLayoutlog4j.appender.R.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} [%5p] - %c -%F(%L) -%m%nlog4j.appender.R.MaxFileSize=20MBlog4j.org.springframework.web=DEBUG

public class Main {   static   org.apache.log4j.Logger logger=org.apache.log4j.LogManager.getLogger(Main.class);    public static void main(String[] args) {        logger.info("main");        System.out.println("Hello World!");    }}

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"         version="3.1">    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>/WEB-INF/applicationContext.xml,/WEB-INF/dispatcher-servlet.xml</param-value>    </context-param>    <context-param>        <param-name>log4jConfigLocation</param-name>        <param-value>/WEB-INF/log4j.properties</param-value>    </context-param>    <context-param>        <param-name>log4jRefreshInterval</param-name>        <param-value>60000</param-value>    </context-param>    <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <listener>        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>    </listener>    <servlet>        <servlet-name>dispatcher</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>dispatcher</servlet-name>        <url-pattern>*.form</url-pattern>    </servlet-mapping></web-app>