我试图创建一些注解，在访问一些受保护的资源之前检查securitycontext的权限。我写了一个示例代码，与我想要实现的非常相似，但是当我调用SomethingProtected（）时，似乎方面的@Before部分从未真正被触发。如果你能帮忙的话，我将不胜感激。
我有：

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface NeedsPermissions {
    boolean read() default true;
}

和

@Aspect
public class NeedsPermissionsAspect {
    @Before("execution(* *.*(..)) && @annotation(NeedsPermissions)")
    public void CheckPermissions(JoinPoint pjp, NeedsPermissions needsPermissions) throws Throwable {
        System.out.println("aspect");
        if (needsPermissions.read() == true) {
            SecurityContext securityContext = SecurityContext.getSecurityContext();
            MyUser user = securityContext.getUser();
            if (!user.read){
                throw new Exception("Not Allowed");
            }
        }
    }
}

和

@Configuration
@EnableAspectJAutoProxy
public class NeedsPermissionsConfig {
}

和

public class ProtectedResource {
    @NeedsPermissions
    public void SomethingProtected(){
        System.out.println("Something protected");
    }
}

和

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd">
    <aop:aspectj-autoproxy/>
    <!-- Aspect -->
    <bean id="needsPermissionsAspect" class="NeedsPermissionsAspect">
        <!-- configure properties of aspect here as normal -->
    </bean>
</beans>