annotation 自定义注解

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD})
public @interface MyAnnotation {

	String descraption() default "";
	
}

@Aspect
@Component
public class AnnotationImplement {

	@Pointcut("@annotation(com.aop.MyAnnotation)")
	public void annotation(){
		//任何代码都不会执行
	}
	
	@Around("annotation()")
	public void afterPoint(ProceedingJoinPoint point){
		
		System.out.println(point.getTarget().getClass().getName());
		Object[] obj = point.getArgs();
		for (int i = 0; i < obj.length; i++) {
			System.out.println(obj.toString());
		}
	}
}

参考：https://my.oschina.net/xwl1990/blog/509192