用Java类

Question

我想在Scala中解析Json，我正在使用Json4s。

case class Child(name: String, age: Int, birthdate: Option[java.util.Date])
case class Address(street: String, city: String)
case class Person(name: String, address: Address, children: List[Child])

val json = parse("""{ "name": "joe",
           "address": {
             "street": "Bulevard",
             "city": "Helsinki"
           },
           "children": [
             {
               "name": "Mary",
               "age": 5,
               "birthdate": "2004-09-04T18:06:22Z"
             },
             {
               "name": "Mazy",
               "age": 3
             }
           ]
         }""")

    val must_ = json.extract[Person]

这对我来说非常好。

现在，我在Java中使用Java类，地址，Child也使用getter和setter。我想重用它们而不是在Java中定义case类

我该怎么做？