Java的注解 Annotation

public Annotation getAnnotation(Class annotationType); public Annotation[] getAnnotations(); public Annotation[] getDeclaredAnnotations(); public boolean isAnnotationPresent(Class annotationType);

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Class、Constructor、Field、Method、Package等都实现了该接口,可以通过这些方法访问Annotation信息,前提是要访问的Annotation指定Retention为RUNTIME.?