如何将列表从typesafeconfig列表展开到特定类型的列表？

I have a config in json format and I am using Typesafe Config library to load this.

我有一个json格式的配置,我使用Typesafe配置库来加载它。

Input config in json format

以json格式输入配置

 {
  "input": {
   "Date": "2014-01-01",
   "Ids": ["1","2","3","4"]
    }
 }

Code

  import com.typesafe.config.{Config, ConfigFactory}
  val config = ConfigFactory.load("test.json")
  val ids = config.getList("input.Ids").unwrapped
  #  ids: java.util.List[Object] = [1, 2, 3, 4]

All I am getting is list of object. When I try to do a map of each element to int it fails because each element is an object.

我得到的只是对象列表。当我尝试将每个元素的映射都设置为int时,它会失败,因为每个元素都是一个对象。

   ids.map(_.toInt)
    <console>:14: error: value toInt is not a member of Object
          ids.map(_.toInt)

How to convert the object list to integer list in scala ?

如何将对象列表转换为scala中的整数列表?

1 个解决方案

#1

You can use the getStringList method and then map the result to int

您可以使用getStringList方法,然后将结果映射到int

config.getStringList("input.Ids").map(_.toInt)

or in this case use the getIntList method directly

或者在这种情况下直接使用getIntList方法

#1