At 这个链接 https://github.com/Sergey80/scala-samples/blob/master/src/main/scala/json/jackson/SubClasses.scala
我试图理解why我(可能)需要吗@JsonTypeName
在子类上(就像所有的“互联网;提出的问题 https://stackoverflow.com/questions/11798394/polymorphism-in-jackson-annotations-jsontypeinfo-usage)如果没有它也能工作?
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "aType")
@JsonSubTypes(Array(
new Type(value = classOf[ModelA], name = "ModelA"),
new Type(value = classOf[ModelB], name = "ModelB")
))
class BaseModel(val modelName:String)
//@JsonTypeName("SomeModel") // Commented. Do I need this?
class ModelA(val a:String, val b:String, val c:String, commonData:String) extends BaseModel(commonData) {
def this() = this("default", "default", "default" ,"default")
}
//@JsonTypeName("SomeModel") // Commented. Do I need this?
class ModelB(val a:String, val b:String, val c:String, commonData:String) extends BaseModel(commonData) {
def this() = this("default", "default", "default" ,"default")
}