Log4j2 找不到使用 Spring Boot 的日志记录实现

Posted 2023-02-26

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【中文标题】Log4j2 找不到使用 Spring Boot 的日志记录实现【英文标题】：Log4j2 could not find a logging implementation with Spring Boot 【发布时间】：2017-01-26 09:49:42 【问题描述】：

我在尝试将 log4j2 与 spring boot 一起使用时遇到此错误。

ERROR StatusLogger Log4j2 could not find a logging implementation. 
Please add log4j-core to the classpath. Using SimpleLogger to log to the console...

我已遵循本指南：http://docs.spring.io/spring-boot/docs/current/reference/html/howto-logging.html#howto-configure-log4j-for-logging - 并且还添加了来自 https://logging.apache.org/log4j/2.x/maven-artifacts.html 的两个 log4j2 依赖项

我的依赖：树看起来像这样：

[INFO] --- maven-dependency-plugin:2.10:tree (default-cli) @  musikkjulekalender ---
[INFO] no.saiboten:musikkjulekalender:war:1.0-SNAPSHOT
[INFO] +- org.springframework.boot:spring-boot-starter-web:jar:1.4.0.RELEASE:compile
[INFO] |  +- org.hibernate:hibernate-validator:jar:5.2.4.Final:compile
[INFO] |  |  +- javax.validation:validation-api:jar:1.1.0.Final:compile
[INFO] |  |  +- org.jboss.logging:jboss-logging:jar:3.3.0.Final:compile
[INFO] |  |  \- com.fasterxml:classmate:jar:1.3.1:compile
[INFO] |  +- org.springframework:spring-web:jar:4.3.2.RELEASE:compile
[INFO] |  \- org.springframework:spring-webmvc:jar:4.3.2.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-jetty:jar:1.4.0.RELEASE:compile
[INFO] |  +- org.eclipse.jetty:jetty-servlets:jar:9.3.11.v20160721:compile
[INFO] |  |  +- org.eclipse.jetty:jetty-continuation:jar:9.3.11.v20160721:compile
[INFO] |  |  +- org.eclipse.jetty:jetty-http:jar:9.3.11.v20160721:compile
[INFO] |  |  \- org.eclipse.jetty:jetty-io:jar:9.3.11.v20160721:compile
[INFO] |  +- org.eclipse.jetty:jetty-webapp:jar:9.3.11.v20160721:compile
[INFO] |  |  +- org.eclipse.jetty:jetty-xml:jar:9.3.11.v20160721:compile
[INFO] |  |  \- org.eclipse.jetty:jetty-servlet:jar:9.3.11.v20160721:compile
[INFO] |  |     \- org.eclipse.jetty:jetty-security:jar:9.3.11.v20160721:compile
[INFO] |  +- org.eclipse.jetty.websocket:websocket-server:jar:9.3.11.v20160721:compile
[INFO] |  |  +- org.eclipse.jetty.websocket:websocket-common:jar:9.3.11.v20160721:compile
[INFO] |  |  |  \- org.eclipse.jetty.websocket:websocket-api:jar:9.3.11.v20160721:compile
[INFO] |  |  +- org.eclipse.jetty.websocket:websocket-client:jar:9.3.11.v20160721:compile
[INFO] |  |  \- org.eclipse.jetty.websocket:websocket-servlet:jar:9.3.11.v20160721:compile
[INFO] |  \- org.eclipse.jetty.websocket:javax-websocket-server-impl:jar:9.3.11.v20160721:compile
[INFO] |     +- org.eclipse.jetty:jetty-annotations:jar:9.3.11.v20160721:compile
[INFO] |     |  +- org.eclipse.jetty:jetty-plus:jar:9.3.11.v20160721:compile
[INFO] |     |  +- javax.annotation:javax.annotation-api:jar:1.2:compile
[INFO] |     |  +- org.ow2.asm:asm:jar:5.0.1:compile
[INFO] |     |  \- org.ow2.asm:asm-commons:jar:5.0.1:compile
[INFO] |     |     \- org.ow2.asm:asm-tree:jar:5.0.1:compile
[INFO] |     +- org.eclipse.jetty.websocket:javax-websocket-client-impl:jar:9.3.11.v20160721:compile
[INFO] |     \- javax.websocket:javax.websocket-api:jar:1.0:compile
[INFO] +- org.springframework.boot:spring-boot-starter-data-jpa:jar:1.4.0.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter-aop:jar:1.4.0.RELEASE:compile
[INFO] |  |  \- org.aspectj:aspectjweaver:jar:1.8.9:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter-jdbc:jar:1.4.0.RELEASE:compile
[INFO] |  |  +- org.apache.tomcat:tomcat-jdbc:jar:8.5.4:compile
[INFO] |  |  |  \- org.apache.tomcat:tomcat-juli:jar:8.5.4:compile
[INFO] |  |  \- org.springframework:spring-jdbc:jar:4.3.2.RELEASE:compile
[INFO] |  +- org.hibernate:hibernate-core:jar:5.0.9.Final:compile
[INFO] |  |  +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile
[INFO] |  |  +- org.javassist:javassist:jar:3.20.0-GA:compile
[INFO] |  |  +- antlr:antlr:jar:2.7.7:compile
[INFO] |  |  +- org.jboss:jandex:jar:2.0.0.Final:compile
[INFO] |  |  +- dom4j:dom4j:jar:1.6.1:compile
[INFO] |  |  |  \- xml-apis:xml-apis:jar:1.4.01:compile
[INFO] |  |  \- org.hibernate.common:hibernate-commons-annotations:jar:5.0.1.Final:compile
[INFO] |  +- org.hibernate:hibernate-entitymanager:jar:5.0.9.Final:compile
[INFO] |  +- javax.transaction:javax.transaction-api:jar:1.2:compile
[INFO] |  \- org.springframework:spring-aspects:jar:4.3.2.RELEASE:compile
[INFO] +- com.h2database:h2:jar:1.4.192:compile
[INFO] +- org.springframework.boot:spring-boot-starter-test:jar:1.4.0.RELEASE:test
[INFO] |  +- org.springframework.boot:spring-boot-test:jar:1.4.0.RELEASE:test
[INFO] |  +- org.springframework.boot:spring-boot-test-autoconfigure:jar:1.4.0.RELEASE:test
[INFO] |  +- com.jayway.jsonpath:json-path:jar:2.2.0:test
[INFO] |  |  \- net.minidev:json-smart:jar:2.2.1:test
[INFO] |  |     \- net.minidev:accessors-smart:jar:1.1:test
[INFO] |  +- org.assertj:assertj-core:jar:2.5.0:test
[INFO] |  +- org.mockito:mockito-core:jar:1.10.19:test
[INFO] |  |  \- org.objenesis:objenesis:jar:2.1:test
[INFO] |  +- org.hamcrest:hamcrest-core:jar:1.3:compile
[INFO] |  +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO] |  +- org.skyscreamer:jsonassert:jar:1.3.0:test
[INFO] |  |  \- org.json:json:jar:20140107:test
[INFO] |  +- org.springframework:spring-core:jar:4.3.2.RELEASE:compile
[INFO] |  \- org.springframework:spring-test:jar:4.3.2.RELEASE:test
[INFO] +- org.springframework.boot:spring-boot-starter:jar:1.4.0.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot:jar:1.4.0.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot-autoconfigure:jar:1.4.0.RELEASE:compile
[INFO] |  \- org.yaml:snakeyaml:jar:1.17:runtime
[INFO] +- org.springframework.boot:spring-boot-starter-log4j2:jar:1.4.0.RELEASE:compile
[INFO] |  +- org.apache.logging.log4j:log4j-slf4j-impl:jar:2.6.2:compile
[INFO] |  +- org.slf4j:jcl-over-slf4j:jar:1.7.21:compile
[INFO] |  \- org.slf4j:jul-to-slf4j:jar:1.7.21:compile
[INFO] +- org.apache.logging.log4j:log4j-api:jar:2.6.2:compile
[INFO] +- org.apache.logging.log4j:log4j-core:jar:2.6.2:compile
[INFO] +- org.apache.commons:commons-lang3:jar:3.3.2:compile
[INFO] +- org.mongodb:mongo-java-driver:jar:2.12.4:compile
[INFO] +- org.springframework.data:spring-data-mongodb:jar:1.9.2.RELEASE:compile
[INFO] |  +- org.springframework:spring-tx:jar:4.3.2.RELEASE:compile
[INFO] |  +- org.springframework:spring-context:jar:4.3.2.RELEASE:compile
[INFO] |  +- org.springframework:spring-beans:jar:4.3.2.RELEASE:compile
[INFO] |  +- org.springframework:spring-expression:jar:4.3.2.RELEASE:compile
[INFO] |  +- org.springframework.data:spring-data-commons:jar:1.12.2.RELEASE:compile
[INFO] |  \- org.slf4j:slf4j-api:jar:1.7.21:compile
[INFO] +- com.google.api-client:google-api-client:jar:1.18.0-rc:compile
[INFO] +- com.google.http-client:google-http-client-jackson2:jar:1.18.0-rc:compile
[INFO] |  \- com.google.http-client:google-http-client:jar:1.18.0-rc:compile
[INFO] +- com.google.oauth-client:google-oauth-client:jar:1.18.0-rc:compile
[INFO] |  \- com.google.code.findbugs:jsr305:jar:1.3.9:compile
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.2:compile
[INFO] |  \- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.1:compile
[INFO] +- com.google.apis:google-api-services-oauth2:jar:v2-rev81-1.19.0:compile
[INFO] +- com.fasterxml.jackson.core:jackson-core:jar:2.8.2:compile
[INFO] +- org.mongodb.morphia:morphia:jar:0.107:compile
[INFO] +- org.springframework.security:spring-security-web:jar:4.1.1.RELEASE:compile
[INFO] |  +- aopalliance:aopalliance:jar:1.0:compile
[INFO] |  \- org.springframework.security:spring-security-core:jar:4.1.1.RELEASE:compile
[INFO] +- org.springframework.security:spring-security-config:jar:4.1.1.RELEASE:compile
[INFO] |  \- org.springframework:spring-aop:jar:4.3.2.RELEASE:compile
[INFO] +- org.springframework.social:spring-social-config:jar:1.1.4.RELEASE:compile
[INFO] |  \- org.springframework.social:spring-social-web:jar:1.1.4.RELEASE:compile
[INFO] |     \- javax.inject:javax.inject:jar:1:compile
[INFO] +- org.springframework.social:spring-social-core:jar:1.1.4.RELEASE:compile
[INFO] +- org.springframework.social:spring-social-facebook:jar:2.0.3.RELEASE:compile
[INFO] +- org.apache.httpcomponents:httpclient:jar:4.3.6:compile
[INFO] |  +- org.apache.httpcomponents:httpcore:jar:4.4.5:compile
[INFO] |  \- commons-codec:commons-codec:jar:1.10:compile
[INFO] +- org.mockito:mockito-all:jar:1.10.8:compile
[INFO] +- junit:junit:jar:4.11:compile
[INFO] +- org.eclipse.jetty:apache-jsp:jar:9.3.11.v20160721:provided
[INFO] |  +- org.eclipse.jetty:jetty-util:jar:9.3.11.v20160721:compile
[INFO] |  +- org.eclipse.jetty:jetty-server:jar:9.3.11.v20160721:compile
[INFO] |  +- org.eclipse.jetty.toolchain:jetty-schemas:jar:3.1:provided
[INFO] |  +- javax.servlet:javax.servlet-api:jar:3.1.0:compile
[INFO] |  +- org.mortbay.jasper:apache-jsp:jar:8.0.33:provided
[INFO] |  |  \- org.mortbay.jasper:apache-el:jar:8.0.33:provided
[INFO] |  \- org.eclipse.jdt.core.compiler:ecj:jar:4.4.2:provided
[INFO] +- javax.servlet:jstl:jar:1.2:compile
[INFO] +- org.springframework.data:spring-data-jpa:jar:1.10.2.RELEASE:compile
[INFO] |  +- org.springframework:spring-orm:jar:4.3.2.RELEASE:compile
[INFO] |  \- org.aspectj:aspectjrt:jar:1.8.9:compile
[INFO] +- postgresql:postgresql:jar:9.1-901-1.jdbc4:compile
[INFO] \- joda-time:joda-time:jar:2.9.4:compile

我已使用默认配置将标准 log4j2.xml 文件添加到 src/main/resources/config：

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
  <Appenders>
    <Console name="STDOUT" target="SYSTEM_OUT">
      <PatternLayout pattern="%d %-5p [%t] %C2 (%F:%L) - %m%n"/>
    </Console>
  </Appenders>
  <Loggers>
    <Logger name="org.apache.log4j.xml" level="info"/>
    <Root level="debug">
      <AppenderRef ref="STDOUT"/>
    </Root>
  </Loggers>
</Configuration>

有什么猜测吗？我尝试在 Spring Tool Suite 中使用 maven spring-boot 插件运行。

应大众要求，这里是完整的 pom.xml：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.0.RELEASE</version>
    </parent>

    <modelVersion>4.0.0</modelVersion>
    <groupId>no.saiboten</groupId>
    <artifactId>musikkjulekalender</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>Musikkjulekalender</name>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-tomcat</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
             <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
        </dependency>
     <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-api</artifactId>
        <version>2.6.2</version>
      </dependency>
      <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>2.6.2</version>
      </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.3.2</version>
        </dependency>
        <dependency>
            <groupId>org.mongodb</groupId>
            <artifactId>mongo-java-driver</artifactId>
            <version>2.12.4</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-mongodb</artifactId>
        </dependency>
        <dependency>
            <groupId>com.google.api-client</groupId>
            <artifactId>google-api-client</artifactId>
            <version>1.18.0-rc</version>
        </dependency>
        <dependency>
            <groupId>com.google.http-client</groupId>
            <artifactId>google-http-client-jackson2</artifactId>
            <version>1.18.0-rc</version>
        </dependency>
        <dependency>
            <groupId>com.google.oauth-client</groupId>
            <artifactId>google-oauth-client</artifactId>
            <version>1.18.0-rc</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.8.2</version>
        </dependency>
        <dependency>
            <groupId>com.google.apis</groupId>
            <artifactId>google-api-services-oauth2</artifactId>
            <version>v2-rev81-1.19.0</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.8.2</version>
        </dependency>
        <dependency>
            <groupId>org.mongodb.morphia</groupId>
            <artifactId>morphia</artifactId>
            <version>0.107</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.social</groupId>
            <artifactId>spring-social-config</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.social</groupId>
            <artifactId>spring-social-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.social</groupId>
            <artifactId>spring-social-facebook</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.3.6</version>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
            <version>1.10.8</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.11</version>
        </dependency>
        <dependency>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>apache-jsp</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>9.1-901-1.jdbc4</version>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.9.4</version>
        </dependency>
    </dependencies>

    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <useSystemClassLoader>false</useSystemClassLoader>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>spring-releases</id>
            <name>Spring Releases</name>
            <url>https://repo.spring.io/libs-release</url>
        </repository>
        <repository>
            <id>org.jboss.repository.releases</id>
            <name>JBoss Maven Release Repository</name>
            <url>https://repository.jboss.org/nexus/content/repositories/releases</url>
        </repository>
    </repositories>

    <pluginRepositories>
        <pluginRepository>
            <id>spring-releases</id>
            <name>Spring Releases</name>
            <url>https://repo.spring.io/libs-release</url>
        </pluginRepository>
    </pluginRepositories>

</project>

【问题讨论】：

不确定是否相关，但我发现存在 2 Lo4j2 Impls：[INFO] | +- org.apache.logging.log4j:log4j-slf4j-impl:jar:2.6.2:compile 和 [INFO] +- org.apache.logging.log4j:log4j-core:jar:2.6.2:compile 可能会帮助你***.com/questions/47881821/… 【参考方案1】：

查了LogManager.class的源码，发现原因是log4j-provider.properties中没有LoggerContextFactory，应该在中找到log4j-core.jar/META-INF. 因此，请检查您的 log4j-core.jar/META-INF/log4j-provider.properties 文件，或者您可以删除本地存储库中的 log4j-core.jar。

【讨论】：

谢谢你知道了。在我的情况下，我使用带有 MergeStrategy 的 sbt-assembly 插件，该插件丢弃了 META-INF 下的内容，我必须对其进行一些改进，以让 log4j-provider.properties 保留在 uber-jar 的 META-INF 目录中这只是为我修复了几个小时。谢谢 @user2056182，您介意分享一下您是如何改进它的吗？我也在使用 sbt-assembly 插件，但似乎无法正常工作。通过缩小assemblyMergeStrategy 中的规则范围并简单地使用case PathList("META-INF", "MANIFEST.MF") => MergeStrategy.discard，设法让事情正常进行。另见：github.com/marccarre/log4j2-sbt-assembly 我的 log4j-core.jar 有那个属性文件，但我仍然得到错误。 for i in find ~/.m2/repository | grep log4j-核心 | grep -E 'jar$' | grep 2.6.2; do echo $i; unzip -l $i | grep log4j-provider.properties; done

2.6.2/log4j-core-2.6.2.jar       904  07-05-2016 19:36   META-INF/log4j-provider.properties 2.6.2/log4j-core-2.6.2-javadoc.jar 2.6.2/log4j-core-2.6.2-sources.jar       904  07-05-2016 19:36   META-INF/log4j-provider.properties

【参考方案2】：

看起来你的依赖是正确的。这是使用 log4j2 作为日志框架的 spring-boot 应用程序的 pom：

    <!-- Spring logging -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>

将您的 log4j2.xml 放入 resource 文件夹以便从 eclipse 运行；如果您更喜欢使用不同的目录 - resource/conf - 使用 JVM 参数提供 log4j2 配置的路径，如下所示：

-Dlog4j.configurationFile=”conf/log4j2.xml”

不要放弃，从logback切换回log4j2...

【讨论】：

【参考方案3】：

当 log4j-api 模块无法找到或加载其接口的实现时，会生成该错误消息。通常这意味着类路径中缺少 log4j-core 模块，但是查看您的依赖关系图似乎并非如此。

在 log4j-slf4j-impl 和 log4j-jul 模块上有一些传递依赖，但我认为这不会导致错误消息。

进一步调查的一种方法是尝试使用以下系统属性集再次启动您的应用程序：-Dorg.apache.logging.log4j.simplelog.StatusLogger.level=TRACE。这会将 log4j 内部调试日志打印到控制台。

（一旦你的配置文件被加载，StatusLogger 的输出级别可以通过在 log4j2.xml 配置文件的开头设置<Configuration status="trace"> 来控制。但是，配置文件是由 log4j-core 模块加载的，我们'还没到……）

【讨论】：

【参考方案4】：

可能有多种原因，但常见的原因是您可能有错误的 JAR（已损坏）。从存储库中删除 JAR 并尝试再次下载。它会解决问题。

在我的情况下，我已经从 maven 存储库中删除了 org 文件夹 home.m2\repository\org.

我在这里发布了类似的问题。 Spring boot: ERROR StatusLogger Log4j2 could not find a logging implementation

【讨论】：

【参考方案5】：

添加以下设置解决了我的问题。

-Dlog4j2.loggerContextFactory=org.apache.logging.log4j.core.impl.Log4jContextFactory

【讨论】：

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