如何从 TypeDescription 中获取 Annotation class

Question

我正在尝试使用 ByteBuddy。

如何使用给定的 TypeDescription，获得注释 class？

到目前为止我找到了getActualName。

@Override
public boolean matches(final TypeDescription target) {
    //System.out.printf("matches(%1$s)\n", target);
    //System.out.printf("\tcanonicalName: %1$s\n", target.getCanonicalName());
    //System.out.printf("\tcomponentType: %1$s\n", target.getComponentType());
    {
        final AnnotationList inheritedAnnotations = target.getInheritedAnnotations();
        inheritedAnnotations.forEach(v -> {
            //System.out.printf("\tinherited annotationDescriptor: %1$s\n", v);
        });
    }
    {
        final AnnotationList declaredAnnotations = target.getDeclaredAnnotations();
        declaredAnnotations.forEach(v -> {
            //System.out.printf("\tdeclared annotationDescriptor: %1$s\n", v);
        });
    }
    {
        final FieldList<FieldDescription.InDefinedShape> declaredFields = target.getDeclaredFields();
        declaredFields.forEach(declaredFiled -> {
            System.out.println("declaredField: " + declaredFiled);
            final AnnotationList declaredAnnotations = declaredFiled.getDeclaredAnnotations();
            declaredAnnotations.forEach(declaredAnnotation -> {
                System.out.println("declaredAnnotation: {}" + declaredAnnotation);
                final Set<ElementType> elementTypes = declaredAnnotation.getElementTypes();
                System.out.println("\telementTypes: " + elementTypes);
                final TypeDescription annotationType = declaredAnnotation.getAnnotationType();
                System.out.println("\tannotationType: " + annotationType);
                System.out.println("\tannotationType.actualName: " + annotationType.getActualName());
            });
        });
    }
    return false;
}

实际上，我正在尝试在编译的 classes 上添加一些方法，这些方法由一些带有特定注释的字段进行注释。

Answer 1

AnnotationList 是 AnnotationDescription 类型对象的列表，您可以在其中调用 getAnnotationType 方法来接收其注释类型的 TypeDescription。

如何从 TypeDescription 中获取 Annotation class

How can I get Annotation class from TypeDescription

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