错误信息:
Log4j2 could not find a logging implementation. Please add log4j-core to the classpath
解决办法:
pom把log4j-api也加进去
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.9.1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.9.1</version>
</dependency>