shiro添加注解@RequiresPermissions不起作用

这是因为没有开启spring拦截器，在spring-mvc.xml中加入以下代码就可以了

<bean class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"
        depends-on="lifecycleBeanPostProcessor" />
<bean class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">
        <property name="securityManager" ref="securityManager" />
</bean>

lifecycleBeanPostProcessor和securityManager是在shiro配置文件中定义好的：

<bean id="lifecycleBeanPostProcessor" class="org.apache.shiro.spring.LifecycleBeanPostProcessor"></bean>

<!-- Shiro安全管理器 -->
    <bean id="securityManager" class="org.apache.shiro.web.mgt.DefaultWebSecurityManager">
        <property name="realm" ref="jdbcRealm"></property>
        <property name="cacheManager" ref="cacheManager"></property>
    </bean>