scala – 困惑如何设置多项目sbt项目

发布时间：2020-12-16 09:39:27 所属栏目：安全来源：网络整理

导读：我在这里使用sbt .13 我到现在为止 import sbt._import Keys._import play.Project._object ApplicationBuild extends Build { val appVersion = "1.0" resolvers += "local maven" at "/Users/blankman/.m2/repository/" val commonDependencies = Seq() va

我在这里使用sbt .13

我到现在为止

import sbt._
import Keys._
import play.Project._

object ApplicationBuild extends Build {

  val appVersion = "1.0"

  resolvers += "local maven" at "/Users/blankman/.m2/repository/"

  val commonDependencies = Seq()
  val modelDependencies = Seq(
    "com.typesafe.slick" %% "slick" % "2.0.1","org.slf4j" % "slf4j-nop" % "1.6.4"
  )

  val serviceDependencies = Seq(
    "com.typesafe.slick" %% "slick" % "2.0.1","org.slf4j" % "slf4j-nop" % "1.6.4"
  )

  val webDependencies = Seq(
    //"org.apache.tomcat" % "tomcat-jdbc" % "8.0.3","mysql" % "mysql-connector-java" % "5.1.30","com.typesafe.slick" %% "slick" % "2.0.1"
  )


  lazy val common = Project(
    id = "app-common",base = file("app-common"),dependencies = commonDependencies
  )

  lazy val models = Project(
    id = "app-models",base = file("app-models"),settings(modelDependencies: _*)
    )
  ).dependsOn(common)

  lazy val services = Project(
    id = "app-services",base = file("app-services"),settings = Seq(
      libraryDependencies ++= serviceDependencies
    )
  ).dependsOn(models,common)


  lazy val web = play.Project("app-web",appVersion,webDependencies,path = file("app-web"))
                      .settings(playScalaSettings: _*)
                      .dependsOn(services)

}

这不行，例如，如果我进入：

项目应用模型

并尝试编译，它说编译是无效的。

我真的很困惑如何设置一个项目，什么是正确的方法？

看这个幻灯片#10这里http://jsuereth.com/scala/2013/06/11/effective-sbt.html它说我可以做：

lazy val web = (
  Project("app-models",file("app-models"))
  settings(
     libraryDependencies += modelDependencies
  )
)

但是当我这样做时，我也会收到一个错误。

我基本上在sbt里面有几个项目：

common
models
services
web (which is play)

>型号取决于公共
>服务取决于公共模式
> web取决于服务

有人能帮我把这个工作吗？

解决方法

在您的构建定义中，我发现了一些问题，但是由于您购买了Josh的 Effective sbt演讲，所以我认为我们应该把整个猪肉的风格。

有效的sbt

这是文件。

项目/ build.properties

sbt.version=0.13.2

项目/ play.sbt

val playVersion = "2.2.2"

resolvers += Resolver.typesafeRepo("releases")

addSbtPlugin("com.typesafe.play" % "sbt-plugin" % playVersion)

项目/ commons.scala

import sbt._
import Keys._

object Commons {
  val appVersion = "1.0"

  val settings: Seq[Def.Setting[_]] = Seq(
    version := appVersion,resolvers += Opts.resolver.mavenLocalFile
  )
}

项目/ dependencies.scala

import sbt._
import Keys._

object Dependencies {
  val slickVersion = "2.0.1"
  val slick = "com.typesafe.slick" %% "slick" % slickVersion
  val slf4jVersion = "1.6.4"
  val slf4jNop = "org.slf4j" % "slf4j-nop" % slf4jVersion
  val mysqlConnectorVersion = "5.1.30"
  val mysqlConnector = "mysql" % "mysql-connector-java" % mysqlConnectorVersion

  val commonDependencies: Seq[ModuleID] = Seq(
    slick,slf4jNop
  )
  val modelDependencies: Seq[ModuleID] = Seq()
  val serviceDependencies: Seq[ModuleID] = Seq()
  val webDependencies: Seq[ModuleID] = Seq(
    mysqlConnector
  )
}

build.sbt

import play.Project._
import Dependencies._

lazy val appCommon = (project in file("app-common")).
  settings(Commons.settings: _*).
  settings(
    libraryDependencies ++= commonDependencies
  )

lazy val appModels = (project in file("app-models")).
  settings(Commons.settings: _*).
  settings(
    libraryDependencies ++= modelDependencies
  ).
  dependsOn(appCommon)

lazy val appServices = (project in file("app-services")).
  settings(Commons.settings: _*).
  settings(
    libraryDependencies ++= serviceDependencies
  ).
  dependsOn(appModels,appCommon)

lazy val appWeb = (project in file("app-web")).
  settings(Commons.settings: _*).
  settings(playScalaSettings: _*).
  dependsOn(appServices)

笔记

设置参数vs设置方法

对于模型和服务，您将设置顺序传递到Project(…)构造函数中，因此可能未加载默认设置。您可以手动传递默认设置，也可以在Project上使用设置(…)方法，我建议您使用。

lazy val appModels = (project in file("app-models")).
  settings(
    libraryDependencies ++= modelDependencies
  ).
  dependsOn(appCommon)

乔希用括号使用后缀符号，但是我更喜欢使用点符号表示法，所以这个说法略有偏离。

libraryDependencies =

如上面的例子，你必须将modelDependencies传递给libraryDependencies。你把它直接拨入设置。

解析器

解析器设置不会传递到任何东西，这可能是不正确的。

（编辑：李大同）

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