Scala play json -使用相同的键更新所有值

import play.api.libs.json._

val json = Json.obj(
  "key1" -> "value1",
  "key2" -> "value2",
  "key3" -> "value3"
)

val updatedJson = json.transform((__ \ "key1").json.update(__.read[String].map(_ => "new value1")))
  .andThen((__ \ "key2").json.update(__.read[String].map(_ => "new value2")))
  .andThen((__ \ "key3").json.update(__.read[String].map(_ => "new value3")))
  .as[JsObject]

println(updatedJson)

import play.api.libs.json._

object Main extends App {
  val json = Json.obj(
    "key1" -> "value1",
    "key2" -> "value2",
    "key3" -> "value3"
  )

  val updatedJson = json.transform((__ \ "key1").json.update(__.read[String].map(_ => "new value1")))
    .andThen((__ \ "key2").json.update(__.read[String].map(_ => "new value2")))
    .andThen((__ \ "key3").json.update(__.read[String].map(_ => "new value3")))
    .as[JsObject]

  println(updatedJson)
}