java如何序列化非持久实体中的嵌套PersistentEntityResource

Question

我希望嵌套的PersistentEntityResource在非持久性实体内部序列化。资源在返回时没有嵌套，因此该实体中可能没有问题

这是一个虚拟的实体，我试图返回它的嵌套类，包括持久实体

class ReturnedEntityDummy {
    List<resourceWrapperDummy> dummy

    ReturnedEntityDummy(List<resourceWrapperDummy> versions){
        this.dummy = dummy
    }
}

class resourceWrapperDummy<T> {
    PersistentEntityResource content
    Integer position

    resourceWrapperDummy(PersistentEntityResource content, Integer position) {
        this.content = content
        this.position = position
    }
}

最后一个类中的PersistentEntityResource就是我想要序列化和 这是我试图返回ReturnedEntityDummy时收到的错误消息：

Failed to write HTTP message: org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Failed to specialize base type org.springframework.data.mapping.PersistentEntity<java.lang.Object,org.springframework.data.mapping.PersistentProperty<java.lang.Object>> as org.springframework.data.jpa.mapping.JpaPersistentEntityImpl, problem: Type parameter #2/2 differs;