如何告诉jackson忽略我无法控制源代码的属性? [英] How can I tell jackson to ignore a property for which I don't have control over the source code?
问题描述
长话短说,我的一个实体有一个当你调用getBoundary时抛出异常的GeometryCollection (为什么这是另一本书,现在让我们说这是它的工作方式)。
Long story short, one of my entities has a GeometryCollection that throws an exception when you call "getBoundary" (the why of this is another book, for now let's say this is the way it works).
我有没有办法告诉杰克逊不要包括那个特定的吸气剂?我知道当我拥有/控制代码时我可以使用@JacksonIgnore。但事实并非如此,杰克逊通过连续序列化父对象来达到这一点。我在jackson文档中看到了一个过滤选项。这是一个看似合理的解决方案吗?
Is there a way I can tell Jackson not to include that specific getter? I know I can use @JacksonIgnore when I do own/control the code. But this is not case, jackson ends reaching this point through continuous serialization of the parent objects. I saw a filtering option in jackson documentation. Is that a plausible solution?
谢谢!
推荐答案
你可以使用 Jackson Mixins 。例如:
class YourClass {
public int ignoreThis() { return 0; }
}
使用此Mixin
abstract class MixIn {
@JsonIgnore abstract int ignoreThis(); // we don't need it!
}
这个:
objectMapper.getSerializationConfig().addMixInAnnotations(YourClass.class, MixIn.class);
编辑:
感谢评论使用Jackson 2.5+时,API已更改,应使用 objectMapper.addMixIn(Class<?> target,Class<?> mixinSource)调用
Thanks to the comments, with Jackson 2.5+, the API has changed and should be called with objectMapper.addMixIn(Class<?> target, Class<?> mixinSource)
这篇关于如何告诉jackson忽略我无法控制源代码的属性?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!