问题描述
List(Map(id -> 1,weight -> 38),Map(id -> 4,weight -> 98),weight -> 66),Map(id -> 6,weight -> 89))
我想使用 Scala 从上面的地图创建一个 json - 像这样的 circe
{
"id":1,"weight":38
},{
"id":4,"weight":98
}
解决方法
您需要添加这样的 Circe 依赖项:io.circe::circe-core:0.14.1
import io.circe.syntax._
val l = List(
Map("id" -> 1,"weight" -> 38),Map("id" -> 4,"weight" -> 98),"weight" -> 66),Map("id" -> 6,"weight" -> 89)
)
// and then
val jsonStr = l.asJson.noSpaces
println(jsonStr)
"[{\"id\":1,\"weight\":38},{\"id\":4,\"weight\":98},\"weight\":66},{\"id\":6,\"weight\":89}]"