基于Scala中的模式生成随机/样本json

import org.json4s._
import org.json4s.native.JsonMethods._
import org.json4s.native.Serialization
import org.json4s.native.Serialization._

import scala.util.Random

case class Person(name: String, age: Int, hobbies: List[String])

object RandomJsonGenerator {
  implicit val formats: DefaultFormats.type = DefaultFormats

  def randomString(length: Int): String = {
    val chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
    Random.nextString(length, chars)
  }

  def randomInt(min: Int, max: Int): Int = {
    Random.nextInt(max - min + 1) + min
  }

  def randomList[T](generator: => T, length: Int): List[T] = {
    (1 to length).map(_ => generator).toList
  }

  def generatePerson: JValue = {
    val name = randomString(10)
    val age = randomInt(20, 60)
    val hobbies = randomList(randomString(5), 3)
    val person = Person(name, age, hobbies)
    write(person)
  }

  def main(args: Array[String]): Unit = {
    val json = generatePerson
    println(pretty(render(json)))
  }
}