Question

我不知道如何解决这个问题。请看一下，如果可能的话，让我如何解决它。这是我的 pom.xml 文件。

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.1.5.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
    </dependency>


    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>javax.inject</groupId>
        <artifactId>javax.inject</artifactId>
        <version>1</version>
    </dependency>
    <dependency>
        <groupId>org.neo4j</groupId>
        <artifactId>neo4j-cypher-compiler-2.1</artifactId>
        <version>2.1.2</version>
    </dependency>
    <dependency>
        <groupId>com.amazonaws</groupId>
        <artifactId>aws-java-sdk</artifactId>
        <version>1.8.9.1</version>
    </dependency>

    <dependency>
        <groupId>com.google.guava</groupId>
        <artifactId>guava</artifactId>
        <version>15.0</version>
    </dependency>
    <dependency>
        <groupId>org.neo4j</groupId>
        <artifactId>neo4j-cypher-compiler-2.0</artifactId>
        <version>2.0.3</version>
    </dependency>

    <dependency>
        <groupId>org.neo4j</groupId>
        <artifactId>neo4j-cypher-compiler-1.9</artifactId>
        <version>2.0.3</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</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-log4j</artifactId>
    </dependency>


</dependencies>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <start-class>com.bluepi.util.backup.glacier.Application</start-class>
    <java.version>1.7</java.version>
</properties>

<build>
    <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>

我基本上收到以下错误：

在类路径上检测到log4j-over-slf4j.jar和slf4j-log4j12.jar，抢占StackOverflowError。

有关详细信息，另请参阅http://www.slf4j.org/codes.html#log4jDelegationLoop。

Answer 1

转到pom.xml并在底部选项卡上，然后单击“Dependency Hierarchy”选项卡。从那里搜索log4j-over-slf4j。排除此依赖项的所有实例（右键单击实例和“排除Maven工件”）。在你没有更多log4j-over-slf4j出现并重新启动后尝试运行程序。如果它仍然不起作用，则撤消刚才所做的更改（可能很聪明地在开始时备份pom.xml）并排除slf4j-log4j12的所有实例。

使用Apache Storm时我遇到了同样的问题。。。一个例子，为什么一个可能工作而不是另一个是Storm在运行时如何拉入log4j-over-slf4j，尽管事实上我在风暴核心依赖中添加了“排除log4j-over-slf4j”

Answer 2

您可以在 pom.xml

中添加"sl4j over log4j"来解决问题

使用maven和spring boot检测类路径上的log4j-over-slf4j.jar和slf4j-log4j12.jar

2 个答案: