[英]How to get a method's annotation value from a ProceedingJoinPoint?
[英]Spring AspectJ get method annotation from ProceedingJoinPoint
我有一个方面来处理具有自定义注释的所有方法。
注释有一个枚举参数,我必须得到方面的值:
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
public @interface Monitored {
MonitorSystem monitorSystem();
}
我的情况与那个问题非常相似,并且接受的答案适用于没有实现接口的Spring bean。
方面:
@Aspect
@Component
public class MonitorAspect {
@Around("@annotation(com.company.project.monitor.aspect.Monitored)")
public Object monitor(ProceedingJoinPoint pjp) throws Throwable {
MethodSignature signature = (MethodSignature) pjp.getSignature();
MonitorSystem monitorSystem = signature.getMethod().getAnnotation(Monitored.class).monitorSystem();
...
}
}
但是,如果使用@Monitored
批注的Spring bean(仅实现类被注释)实现了一个接口pjp.getSignature()
返回接口的签名,并且它没有注释。
还行吧:
@Component
public class SomeBean {
@Monitored(monitorSystem=MonitorSystem.ABC)
public String someMethod(String name){}
}
这不起作用--pjp.getSignature()获取接口的签名。
@Component
public class SomeBeanImpl implements SomeBeanInterface {
@Monitored(monitorSystem=MonitorSystem.ABC)
public String someMethod(String name){}
}
有没有办法从ProceedingJoinPoint获取实现方法的签名?
管理这样做:
@Aspect
@Component
public class MonitorAspect {
@Around("@annotation(com.company.project.monitor.aspect.Monitored)")
public Object monitor(ProceedingJoinPoint pjp) throws Throwable {
MethodSignature signature = (MethodSignature) pjp.getSignature();
Method method = pjp.getTarget()
.getClass()
.getMethod(signature.getMethod().getName(),
signature.getMethod().getParameterTypes());
Monitored monitored = method.getAnnotation(Monitored.class);
...
}
}
如果您有自定义注释,那么最好的方法是:
@Around("@annotation(monitored)")
public Object monitor(ProceedingJoinPoint pjp, Monitored monitored ) throws
Throwable {
MonitorSystem monitorSystem = monitored.monitorSystem();
//your work .......
pjp.proceed();
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.