Maven中日誌jar包衝突報錯：Class path contains multiple SLF4J bindings
阿新 • • 發佈：2018-11-25
錯誤表現：
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/D:/learn/Java/maven/repository_taotao/org/slf4j/slf4j-log4j12/1.6.4/slf4j-log4j12-1.6.4.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
控制檯報錯如下圖所示：
錯誤原因：
發生jar包衝突了：
分別為：
SLF4J: Found binding in
SLF4J: Found binding in [jar:file:/D:/learn/Java/maven/repository_taotao/org/apache/activemq/activemq-all/5.11.2/activemq-all-5.11.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
解決方案：
可以轉到pom.xml，開啟Dependency Hierarchy並找到slf4j條目。除了通過右鍵單擊“exclude maven artifact”排除其餘條目。
執行mvn dependency:tree並搜尋哪些依賴項具有slf4j您不想要的實現，然後使用依賴項排除將其排除，例如：
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<exclusions>
<exclusion>
<artifactId>slf4j-log4j12</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
</dependency>
<!-- 配置對ActiveMQ客戶端的依賴jar包 -->
<dependency>
<groupId>org.apache.activemq</groupId>
<artifactId>activemq-all</artifactId>
</dependency>
<dependency>
<groupId>com.taotao</groupId>
<artifactId>taotao-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
<exclusions>
<exclusion>
<artifactId>slf4j-log4j12</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
</dependencies>