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Log4j2はSpring Bootでロギング実装を見つけることができませんでした

Spring Bootでlog4j2を使用しようとすると、このエラーが発生します。

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

私はこのガイドに従っています： http://docs.spring.io/spring-boot/docs/current/reference/html/howto-logging.html#howto-configure-log4j -for-logging - からの2つのlog4j2依存関係も追加しましたhttps://logging.Apache.org/log4j/2.x/maven- Artifacts.html

私のdependency：treeは次のようになります：

[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

標準のlog4j2.xml-fileをデフォルトの構成でsrc/main/resources/configに追加しました。

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
  <Appenders>
    <Console name="STDOUT" target="SYSTEM_OUT">
      <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
    </Console>
  </Appenders>
  <Loggers>
    <Logger name="org.Apache.log4j.xml" level="info"/>
    <Root level="debug">
      <AppenderRef ref="STDOUT"/>
    </Root>
  </Loggers>
</Configuration>

推測は？私はSpring Tool Suite内から、そしてmaven spring-bootプラグインで実行してみました。

一般的なリクエストにより、ここに完全なpom.xmlがあります：

<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>
javaspringmavenlogginglog4j2
7
saiboten

LogManager.class のソースコードを調べたところ、log4j-provider.propertiesにLoggerContextFactoryが見つからないことが理由であることがわかりました。log4j-core.jar/META-INF。
log4j-core.jar/META-INF/log4j-provider.propertiesファイルを確認するか、ローカルのlog4j-core.jarを削除してくださいリポジトリ。

6
jaryur

依存関係は正しいようです。これは、ロギングフレームワークとしてlog4j2を使用して動作するSpring-Bootアプリケーションのpomです。

    <!-- 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>

Eclipseから実行するために、log4j2.xmlをresourceフォルダーに配置します。別のディレクトリを使用する場合-resource/conf-次のようなJVM引数を使用してlog4j2構成へのパスを指定します。

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

あきらめて、logbackからlog4j2に切り替えないでください...

3
asch

そのエラーメッセージは、インターフェイスの実装を検出またはロードできない場合に、log4j-apiモジュールによって生成されます。通常、これはlog4j-coreモジュールがクラスパスにないことを意味しますが、依存グラフを見るとそうではないようです。

Log4j-slf4j-implおよびlog4j-julモジュールにはいくつかの推移的な依存関係がありますが、それがエラーメッセージを引き起こす可能性はないと思います。

さらに調査する1つの方法は、このシステムプロパティセットを使用してアプリケーションを再起動することです：-Dorg.Apache.logging.log4j.simplelog.StatusLogger.level=TRACE。これにより、log4j内部デバッグログがコンソールに出力されます。

（設定ファイルが読み込まれると、StatusLoggerの出力レベルは<Configuration status="trace"> log4j2.xml構成ファイルの先頭。ただし、構成ファイルはlog4j-coreモジュールによってロードされ、まだそこにはありません...）

3
Remko Popma

複数の理由が考えられますが、一般的な理由は、JARが間違っている（破損している）可能性があることです。リポジトリーからJARを削除して、もう一度ダウンロードしてください。それは問題を解決します。

私の場合、Mavenリポジトリ{home} .m2\repository\orgから組織フォルダーを削除しました。

ここに同様の質問を投稿しました。 春の起動：エラーStatusLogger Log4j2はロギング実装を見つけることができませんでした

2
Dhiren Solanki