使用Jackson的ObjectMapper的默认展开序列化器 [英] Using default unwrapping serializer of a Jackson ObjectMapper

问题描述

我有一个自定义JsonSerializer，并且在serialize()方法中，我想使用已注册ObjectMapper的默认序列化器行为:

I have a custom JsonSerializer and in the serialize() method I want to use the default serializer behavior of a registered ObjectMapper:

    class Serializer extends JsonSerializer<MyEntity> {

        private ObjectMapper myObjectMapper;

        @Override
        public void serialize(MyEntity value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
            
            // after processing some logic
            
            myObjectMapper.getSerializerProviderInstance().defaultSerializeValue(value, gen);

        }

    }

上面的代码可以正常工作.现在我想做类似的事情，但是对于UnwrappingSerializer，我的意思是我想将unwrappingSerializer委派给已注册的ObjectMapper，例如:

The code above works fine. now I want to do a similar thing but for UnwrappingSerializer, I mean I want to delegate the unwrappingSerializer to the registered ObjectMapper something like this:

    class UnwrappingSerializer extends JsonSerializer<MyEntity> {

        private ObjectMapper myObjectMapper;

        @Override
        public boolean isUnwrappingSerializer() {
            return true;
        }

        @Override
        public void serialize(MyEntity value, JsonGenerator gen, SerializerProvider serializers) throws IOException {

            // after processing some logic

            myObjectMapper.getDefaultUnwrappingSerializer().serialize(value); // how to do such a thing???

        }

    }

我不确定杰克逊是否支持这种事情.我知道另一种选择是扩展UnwrappingBeanSerializer，这也很好，对我而言，唯一重要的事情是我想将展开的序列化委托给ObjectMapper，而我不想手动进行.有什么办法吗?

I'm not sure if Jackson supports such a thing or not. I know another option would be extending UnwrappingBeanSerializer, that's also fine, the only important thing for me is that I want to delegate the unwrapping serialization to an ObjectMapper and I don't want to do it manually. is there any way to do this?

推荐答案

您始终可以创建ObjectMapper的新实例，并在序列化程序中使用它.

You can always create a new instance of ObjectMapper and use it within your serializer.

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