做权限管理时，使用logback做为日志系统，调试程序出现如下错误:
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
以下是maven引入的日志jar包：
<dependency><groupId>ch.qos.logback</groupId><artifactId>logback-core</artifactId><version>1.2.3</version> </dependency> <dependency><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId><version>1.2.3</version><scope>test</scope> </dependency>
<dependency><groupId>org.slf4j</groupId><artifactId>slf4j-api</artifactId><version>1.7.25</version> </dependency>
发现logback-classic scope标签为test范围，把该标签去掉即可解决问题。以下为修改后的内容：
<dependency><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId><version>1.2.3</version> </dependency>
发现logback-classic scope标签为test范围，把该标签去掉即可解决问题。以下为修改后的内容：