spring4.x整合log4j2

最新推荐文章于 2025-03-25 14:59:53 发布

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最新推荐文章于 2025-03-25 14:59:53 发布

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分类专栏： javaWEB开发

本文链接：https://blog.youkuaiyun.com/Wang_Zhong_2018/article/details/94544899

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本文详细介绍了如何在项目中配置和集成Log4j2，包括所需jar包、配置文件设置、web.xml中添加监听器和过滤器，以及通过junit测试验证配置正确性。

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1.所需jar包如下：

<!-- log4j日志文件管理包版本 -->
<slf4j.version>1.7.7</slf4j.version>
<log4j.version>2.7</log4j.version>
<!-- 日志文件管理包 -->
<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>
<!--用于slf4j与log4j2保持桥接 -->
<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-slf4j-impl</artifactId>
  <scope>runtime</scope>
  <version>${log4j.version}</version>
</dependency>
<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-api</artifactId>
  <version>${log4j.version}</version>
</dependency>
<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-core</artifactId>
  <version>${log4j.version}</version>
</dependency>
<dependency>
  <groupId>org.apache.logging.log4j</groupId>
  <artifactId>log4j-web</artifactId>
  <version>${log4j.version}</version>
</dependency>

2.将log4j2的配置文件放置到resource目录下：

3.log4j2的配置文件如下：

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="off" monitorInterval="1800">

    <properties>
        <property name="LOG_HOME">logs/sample</property>
        <property name="FILE_NAME">mylog</property>
    </properties>

    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
        </Console>

        <RollingRandomAccessFile name="running-log"
                                 fileName="${LOG_HOME}/${FILE_NAME}.log"
                                 filePattern="${LOG_HOME}/$${date:yyyy-MM}/${FILE_NAME}-%d{yyyy-MM-dd}-%i.log.gz">
            <PatternLayout
                    pattern="%date{yyyy-MM-dd HH:mm:ss.SSS} %level [%thread][%file:%line] - %msg%n"/>
            <Policies>
                <TimeBasedTriggeringPolicy/>
                <SizeBasedTriggeringPolicy size="10 MB"/>
            </Policies>
            <DefaultRolloverStrategy max="20"/>
        </RollingRandomAccessFile>
    </Appenders>

    <Loggers>
        <Logger name="com.cnblogs.yjmyzz.App2" level="trace"
                additivity="true">
            <AppenderRef ref="running-log"/>
        </Logger>
        <Root level="error">
            <AppenderRef ref="Console"/>
        </Root>
    </Loggers>
</Configuration>

4.在web.xml中增加配置

<!-- 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 -->

5.使用junit测试log4j2是否配置成功：

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:spring/applicationContext.xml")
//多文件可以@ContextConfiguration(locations = { "classpath:spring1.xml", "classpath:spring2.xml"
public class wxorderTest extends AbstractJUnit4SpringContextTests {
    static Logger logger = LogManager.getLogger();
    @Test
    public void saveTest() {
            logger.trace("trace message " );
            logger.debug("debug message " );
            logger.info("info message " );
            logger.warn("warn message " );
            logger.error("error message " );
            logger.fatal("fatal message " );
    }
}

junit整合spring的配置可以看我的上一篇文章，关于log4j2的配置到此结束，网上关于log4j的配置内容的介绍实在太多，在这就不不在介绍了，谢谢各位关注。