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Scala Can'；t使用json4s将简单JSON提取到case类_Scala_Json4s - Fatal编程技术网
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Scala Can'；t使用json4s将简单JSON提取到case类

scala

Scala Can'；t使用json4s将简单JSON提取到case类,scala,json4s,Scala,Json4s,我试图在工作表中使用json4s进行尝试，我只想将json提取到某个案例类： import org.json4s.native.JsonMethods import org.json4s.{DefaultFormats, Extraction, JValue} case class Person(name: String, age: Int) val json = """{"name":"joe","age":15}""" JsonMethods.parse(json).extract[Pe

我试图在工作表中使用
json4s
进行尝试，我只想将json提取到某个案例类：

import org.json4s.native.JsonMethods
import org.json4s.{DefaultFormats, Extraction, JValue}

case class Person(name: String, age: Int)
val json = """{"name":"joe","age":15}"""

JsonMethods.parse(json).extract[Person]
您在导入后立即忘记了隐式val jsonDefaultFormats=DefaultFormats