import com.sun.beans.finder.FieldFinder; //导入依赖的package包/类
/**
 * Performs the search of the field
 * with specified {@code name} in specified context.
 *
 * @param bean  the context bean that contains field
 * @param name  the name of the field
 * @return field object that represents found field
 * @throws NoSuchFieldException if the field is not found
 */
private static Field findField(Object bean, String name) throws NoSuchFieldException {
    return (bean instanceof Class<?>)
            ? FieldFinder.findStaticField((Class<?>) bean, name)
            : FieldFinder.findField(bean.getClass(), name);
}