Scala:如何将String拆分为Map

Question

环境:Scala 2.10+ IDE:Eclipse Kepler

我有一条线 NAME=bala AGE=23 COUNTRY=Singapore

我如何将其作为地图获取

Map(NAME -> bala, AGE -> 23, COUNTRY -> Singapore)

Answer 1

又一个解决方案

val str = "NAME=bala AGE=23 COUNTRY=Singapore"
val pairs = str.split("=| ").grouped(2)
val map = pairs.map { case Array(k, v) => k -> v }.toMap
// Map(NAME -> bala, AGE -> 23, COUNTRY -> Singapore)

Answer 2

我想到了这样的事情,但我几乎可以肯定有更有效的方法:

val line = "NAME=bala AGE=23 COUNTRY=Singapore"
line.split(" ").map(_.split("=")).map(arr => arr(0) -> arr(1)).toMap

这给了我:

res10: scala.collection.immutable.Map[String,String] = Map(NAME -> bala, AGE -> 23, COUNTRY -> Singapore)