使用shiro配置自定义Realm报错：java.lang.NoClassDefFoundError

使用shiro配置自定义Realm报错：

java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory

解决方法：导入依赖

<dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.2</version>
</dependency>