Log4j2相关

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://java.sun.com/xml/ns/javaee"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         id="WebApp_ID" version="3.0">
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring.xml</param-value>
  </context-param>
  <context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>classpath:log4j2.xml</param-value>
  </context-param>
  <filter>
    <filter-name>CharacterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>utf-8</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <servlet>
    <servlet-name>DispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>DispatcherServlet</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>employee/intoIndex.do</welcome-file>
  </welcome-file-list>
  <!-- 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 -->
</web-app>

pom.xml依赖

	<slf4j.version>1.7.25</slf4j.version>
    <log4j.version>2.8.2</log4j.version>
<!--log4j2-->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>jcl-over-slf4j</artifactId>
      <version>${slf4j.version}</version>
      <scope>runtime</scope>
    </dependency>
    <!--核心log4j2jar包-->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-api</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <!--用于与slf4j保持桥接-->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-slf4j-impl</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    <!--web工程需要包含log4j-web，非web工程不需要-->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-web</artifactId>
      <version>${log4j.version}</version>
      <scope>runtime</scope>
    </dependency>
    <!--需要使用log4j2的AsyncLogger需要包含disruptor-->
    <dependency>
      <groupId>com.lmax</groupId>
      <artifactId>disruptor</artifactId>
      <version>3.3.7</version>
    </dependency>
    <!--log4j2完-->

log4j2.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--设置log4j2的自身log级别为DEBUG-->
<configuration status="DEBUG ">

    <appenders>
        <!-- 控制台输出 -->
        <console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} [%t] %-5level %logger{36} - %n%msg%n"/>
        </console>

        <!-- fileName：输出路径  filePattern：命名规则 -->
        <RollingFile name="RollingFileInfo" fileName="D:\\demo\\allOut.log"
                     filePattern="D:\\demo\\$${date:yyyy-MM-dd}/allOut-%d{yyyy-MM-dd}-%i.log.gz">
            <Filters>
                <ThresholdFilter level="all" onMatch="ACCEPT" onMismatch="DENY"/>
            </Filters>
            <!-- 输出格式 -->
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} [%t] %-5level %logger{36} - %msg%n"/>
            <Policies>
                <TimeBasedTriggerzingPolicy interval="1"/>
                <!-- SizeBasedTriggeringPolicy单个文件的大小限制 -->
                <SizeBasedTriggeringPolicy size="2 MB"/>
            </Policies>
            <!-- DefaultRolloverStrategy同一个文件下的最大文件数 -->
            <DefaultRolloverStrategy max="50"/>
        </RollingFile>

        <!--   <RollingFile name="RollingFileWarn" fileName="${sys:user.home}/logs/hpaasvc/warn.log"
                       filePattern="${sys:user.home}/logs/hpaasvc/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log">
              <Filters>
                  <ThresholdFilter level="WARN"/>
                  <ThresholdFilter level="ERROR" onMatch="DENY" onMismatch="NEUTRAL"/>
              </Filters>
              <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
              <Policies>
                  <TimeBasedTriggeringPolicy/>
                  <SizeBasedTriggeringPolicy size="100 MB"/>
              </Policies>
          </RollingFile>
          <RollingFile name="RollingFileError" fileName="${sys:user.home}/logs/hpaasvc/error.log"
                       filePattern="${sys:user.home}/logs/hpaasvc/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log">
              <ThresholdFilter level="ERROR"/>
              <PatternLayout pattern="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
              <Policies>
                  <TimeBasedTriggeringPolicy/>
                  <SizeBasedTriggeringPolicy size="100 MB"/>
              </Policies>
          </RollingFile>
   -->
    </appenders>

    <loggers>
        <!--过滤掉spring和hibernate的一些无用的debug信息-->
        <logger name="org.springframework" level="INFO">
        </logger>
        <logger name="org.hibernate" level="INFO">
        </logger>
        <root level="all">
            <appender-ref ref="Console"/>
            <appender-ref ref="RollingFileInfo"/>
            <!--    <appender-ref ref="RollingFileWarn"/>
               <appender-ref ref="RollingFileError"/> -->
        </root>
    </loggers>

</configuration>