Gradle 如何在sbt中使用变量

我正在为我的项目创建一个build.sbt，它有如下所述的依赖项

 libraryDependencies ++= Seq(
                       "com.typesafe.akka"          % "akka-actor_2.11"                         % "2.3.15",
                       "org.scalaz"                 % "scalaz-core_2.11"                        % "7.2.0",
                       "org.scalactic"              % "scalactic_2.11"                          % "2.2.6" ,
                       "org.scalatest"              % "scalatest_2.11"                          % "2.2.6"  % "test",
                       "org.scalamock"              % "scalamock-scalatest-support_2.11"        % "3.2.2"  % "test",
                       "org.springframework" % "spring-context" % "4.1.6.RELEASE",
                       "org.springframework" % "spring-beans" % "4.1.6.RELEASE",
                       "org.springframework" % "spring-core" % "4.1.6.RELEASE",
                       "org.springframework" % "spring-context" % "4.1.6.RELEASE",
                       "org.springframework" % "spring-web" % "4.1.6.RELEASE",
                       "com.google.guava" % "guava" % "14.0.1",
                       "com.google.code.gson" % "gson" % "2.3",
                       "commons-lang" % "commons-lang" % "2.5",
                       "net.sf.opencsv" % "opencsv" % "2.3",
                       "com.thoughtworks.xstream" % "xstream" % "1.4.8",
                       "commons-io" % "commons-io" % "1.4",
                       "commons-codec" % "commons-codec" % "1.6",
                       "commons-collections" % "commons-collections" % "3.2.2",
                       "commons-logging" % "commons-logging" % "1.1.1",
                       "org.apache.httpcomponents" % "httpclient" % "4.3.3",
                       "org.apache.httpcomponents" % "httpmime" % "4.3.3",
                       "jmdns" % "jmdns" % "0.2",
                       "com.sun.mail" % "javax.mail" % "1.5.4",
                       "junit" % "junit" % "4.12" % "test"
    )

我想将其他地方的版本指定为变量，并引用依赖项中的那些（变量）。

---

这可以像在gradle中那样完成吗？

在

build.sbt

中声明

val

，您可以在依赖项中引用它。示例：

SBT构建只是一段代码，所以您可以在其中执行任何操作。例如，读取一些文件或环境变量，然后在

libraryDependencies