问题描述
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/xxxxxx/repository/ch/qos/logback/logback-classic/1.1.9/logback-classic-1.1.9.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/xxxxxxxx/org/slf4j/slf4j-log4j12/1.7.25/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder]
分析原因
大致意思就是两个jar包里面的类重名,引起了冲突,jvm
不知道该用哪一个。
问题解决
我用的是slf4j
+log4j
的组合,所以我选择不加载spring boot
自带的logback
。
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<artifactId>logback-classic</artifactId>
<groupId>ch.qos.logback</groupId>
</exclusion>
<exclusion>
<artifactId>log4j-over-slf4j</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
参考文章
https://stackoverflow.com/questions/33071002/spring-boot-multiple-slf4j-bindings/33962453
https://www.slf4j.org/codes.html#multiple_bindings