在spring-mvc的配置文件Springmvc-servlet.xml中，要扫描Controller注解的类，用<context:include-filter>标签
<context:component-scan base-package="com.bon.controller">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
在spring的配置文件中applicationContext.xml中不要扫描Controller注解的类，用<context:exclude-filter>标签
<context:component-scan base-package="com.bon">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
原文：https://www.cnblogs.com/BonnieWss/p/9302118.html