如何序列化BigDecimal以使用杰克逊映射值？

Question

Having troubles with serializing BigDecimal object to Map using jackson version 2.7.3 (I can't change this version on my project). It's always serialized as Double. Code I use for serialization:

public static Map<String, Object> serializeToMap(Object pojo) {
    return new ObjectMapper().convertValue(pojo, new HashMap<String, Object>() {}.getClass());
}

Tried to add:

@JsonSerialize(typing = JsonSerialize.Typing.STATIC, as = BigDecimal.class)

and used serializer:

public void serialize(BigDecimal value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
    jgen.writeObject(value.toString());
}

Is it possible to serialize it as BigDecimal?

Answer 1

我通过将序列化替换为：

return new ObjectMapper().enable(DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS).convertValue(pojo, new HashMap<String, Object>() {}.getClass());