解决spring boot启动扫描不到自定义注解的问题

解决spring boot启动扫描不到自定义注解的问题

对于自定义注解这里就不唠叨了，百度一大堆，这里有我一个自定义注解

@Retention(RetentionPolicy.RUNTIME)

@Target({ ElementType.METHOD })

public @interface MsgEvent {

RetailOrderEvent msgEvent();

}

注解实现类

@Component

public class MsgEventProcessor implemehttp://nts BeanPostProcessor {

/**

* 事件消息注解与实例Bean的映射对象

*/

public static Map EVENTCODESERVICEBEANMAP = new HashMap();

@Override

public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {

return bean;

}

@Override

public Object postProcessAfterInitializatioJbmsspHZn(Object bean, String beanName) throws BeansException {

Method[] methods = ReflectionUtils.getAllDeclaredMethods(bean.getClass());

if (methods != null) {

for (Method method : methods) {

MsgEvent myMsgEvent = AnnotationUtils.findAnnotation(method, MsgEvent.class);

if (myMsgEvent != null) {

String eventCode = myMsgEvent.msgEvent().eventCode();

ServiceBean servieBean = new ServiceBean();

servieBean.setServiceBeanObj(bean);

servieBean.setServiceMethod(method);

Class> argsCls = method.getParameterTypes()[0];

servieBean.setArgsCls(argsCls);

EVENTCODESERVICEBEANMAP.put(eventCode, servieBean);

}

}

}

return bean;

}

}

调用者

@MsgEvent(msgEvent = RetailOrderEvent.PLACE_GENERALRETAILORDER)

public Person getPerson(Person p) {

return personMapper.getPerson(p.getId());

}

spring boot debug模式下启动一直不会再代码红色部分停下，说明没有获取到自定义注解

原因是发现bean为jdk代理

解决办法

@SpringBootApplication

@EnableAspectJAutoProxy(exposeProxy = true)

public class Application {

public static void main(String[] args) {

SpringApplication.run(Application.class, args);

}

}

或者

@ImportResource(locations = { "classpath:spring-basic.xml" })

@SpringBootApplication

//@EnableAspectJAutoProxy(exposeProxy = true)

public class Application {

public static void main(String[] args) {

SpringApplication.run(Application.class, args);

}

}

spring-basic.xml

xmlns:xsi="http://w3.org/2001/XMLSchema-JbmsspHZinstance"

xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-3.1.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context-3.1.xsd

http://springframework.org/schema/aop

http://springframework.org/schema/aop/spring-aop-3.1.xsd ">

xmlns:xsi="http://w3.org/2001/XMLSchema-JbmsspHZinstance"

xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-3.1.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context-3.1.xsd

http://springframework.org/schema/aop

http://springframework.org/schema/aop/spring-aop-3.1.xsd ">

上述会让所有的都采用CGLIB代理，如果只想对使用的类采用，其他的还是原来的话就可以对注解使用类上标注@Configuration代替@Component

补充知识：解决Aspect注解基于注解的增强不生效的问题

Aspect基于注解的增强生效须满足3个条件：

ps : 若在 controller 层使用，则controller 也需要配置上边两个条件方能生效

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