PlayFramework：将json转换为json

我有一个类似这样的json

{
"value.first" : "one",
"value.second" : "two",
"value.third" : "three"
}     

在Scala/Play中如何将其转换为这样

{
  "value": { 
   "first": "one",
   "second": "two",
   "third": "three"
  }  
}   

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解决方案取决于必要的灵活性和对错误json格式的处理。也许下面这些对你有用

import play.api.libs.json._

val jsonInitial = Json.obj(
  "value.first" -> "one",
  "value.second" -> "two",
  "value.third" -> "three"
)

val primary: String = jsonInitial.keys.headOption
  .map{ _.split('.')(0) }
  .getOrElse("empty")

val secondary: Seq[(String, JsValue)] = jsonInitial.fields
  .map{ case (k, v) => (k.split('.')(1), v) }

val jsonModified = Json.obj(
  primary -> JsObject(secondary)
)

---

您可能希望查看现有的scala框架来处理Json代码