Play框架Scala：编译错误[类型应用程序不是包控制器的成员]

时间：2015-05-30 08:22:53

标签： scala playframework playframework-2.0

我尝试在书中编译一个scala示例：＆＃34; Play for Scala＆＃34;但在Play控制台上收到以下编译错误：

C:\Play\exp\ch6_implicits>activator run
[info] Loading project definition from C:\Play\exp\ch6_implicits\project
[info] Set current project to ch6_implicits (in build file:/C:/Play/exp/ch6_implicits/)

--- (Running the application, auto-reloading is enabled) ---

[info] p.a.l.c.ActorSystemProvider - Starting application default Akka system: application
[info] p.c.s.NettyServer$ - Listening for HTTP on /0:0:0:0:0:0:0:0:9000

(Server started, use Ctrl+D to stop and go back to the console...)

[info] Compiling 13 Scala sources and 1 Java source to C:\Play\exp\ch6_implicits\target\scala-2.11\classes...
[error] C:\Play\exp\ch6_implicits\conf\routes:6: type Application is not a member of package controllers
[error] GET             /                               controllers.Application.index
[error] C:\Play\exp\ch6_implicits\conf\routes:7: type Shop is not a member of package controllers
[error] GET             /catalog                controllers.Shop.catalog
[error] C:\Play\exp\ch6_implicits\conf\routes:6: type Application is not a member of package controllers
[error] GET             /                               controllers.Application.index
[error] C:\Play\exp\ch6_implicits\conf\routes:7: type Shop is not a member of package controllers
[error] GET             /catalog                controllers.Shop.catalog
[error] C:\Play\exp\ch6_implicits\conf\routes:6: type Application is not a member of package controllers
[error] GET             /                               controllers.Application.index
[error] C:\Play\exp\ch6_implicits\conf\routes:7: type Shop is not a member of package controllers
[error] GET             /catalog                controllers.Shop.catalog
[error] 6 errors found
[error] (compile:compileIncremental) Compilation failed
[error] application -

! @6mafk6inc - Internal server error, for (GET) [/products/new] ->

play.sbt.PlayExceptions$CompilationException: Compilation error[type Application is not a member of package controllers]
        at play.sbt.PlayExceptions$CompilationException$.apply(PlayExceptions.scala:27) ~[na:na]
        at play.sbt.PlayExceptions$CompilationException$.apply(PlayExceptions.scala:27) ~[na:na]
        at scala.Option.map(Option.scala:145) ~[scala-library-2.11.6.jar:na]
        at play.sbt.run.PlayReload$$anonfun$taskFailureHandler$1.apply(PlayReload.scala:49) ~[na:na]
        at play.sbt.run.PlayReload$$anonfun$taskFailureHandler$1.apply(PlayReload.scala:44) ~[na:na]
        at scala.Option.map(Option.scala:145) ~[scala-library-2.11.6.jar:na]
        at play.sbt.run.PlayReload$.taskFailureHandler(PlayReload.scala:44) ~[na:na]
        at play.sbt.run.PlayReload$.compileFailure(PlayReload.scala:40) ~[na:na]
        at play.sbt.run.PlayReload$$anonfun$compile$1.apply(PlayReload.scala:17) ~[na:na]
        at play.sbt.run.PlayReload$$anonfun$compile$1.apply(PlayReload.scala:17) ~[na:na]

Application.scala是：

package controllers

import play.api._
import play.api.mvc._

// We extend the 'WithCart' trait, so we have an implicit conversion from RequestHeader to Cart
object Application extends Controller with WithCart {

  def index = Action { implicit request =>
    // The index template takes an implicit Cart, which is not available.
    // However, the WithCart trait has an implicit conversion from
    // RequestHeader to Cart, and we do have an implicit RequestHeader
    // here, because `request` is a Request, which extends RequestHeader.
    Ok(views.html.index())
  }

  def contact = Action { implicit request =>
    Ok(views.html.contact())
  }

}

Shop.scala是

package controllers

import play.api._
import play.api.mvc._
import models._

object Shop extends Controller with WithCart {

  def catalog() = Action { implicit request =>
    val products = ProductDAO.list
    Ok(views.html.products.catalog(products))
  }

}

路由文件是：

# Routes
# This file defines all application routes (Higher priority routes first)
# ~~~~

# Home page
GET     /               controllers.Application.index
GET     /catalog        controllers.Shop.catalog
GET     /contact        controllers.Application.contact

# Map static resources from the /public folder to the /assets URL path
GET     /assets/*file               controllers.Assets.at(path="/public", file)

Play Framework是2.4.0，大概说：

[ch6_implicits] $ about
[info] This is sbt 0.13.8
[info] The current project is {file:/C:/Play/exp/ch6_implicits/}root 1.0-SNAPSHOT
[info] The current project is built against Scala 2.11.6
[info] Available Plugins: sbt.plugins.IvyPlugin, sbt.plugins.JvmPlugin, sbt.plugins.CorePlugin, sbt.plugins.JUnitXmlReportPlugin, play.sbt.Play, play.sbt.PlayAkkaHttpServer, play.sbt.PlayJava, play.sb
t.PlayLayoutPlugin, play.sbt.PlayNettyServer, play.sbt.PlayScala, play.sbt.routes.RoutesCompiler, play.twirl.sbt.SbtTwirl, com.typesafe.sbt.SbtNativePackager, com.typesafe.sbt.packager.archetypes.Akka
AppPackaging, com.typesafe.sbt.packager.archetypes.JavaAppPackaging, com.typesafe.sbt.packager.archetypes.JavaServerAppPackaging, com.typesafe.sbt.packager.archetypes.jar.ClasspathJarPlugin, com.types
afe.sbt.packager.archetypes.jar.LauncherJarPlugin, com.typesafe.sbt.packager.debian.DebianDeployPlugin, com.typesafe.sbt.packager.debian.DebianPlugin, com.typesafe.sbt.packager.debian.JDebPackaging, c
om.typesafe.sbt.packager.docker.DockerPlugin, com.typesafe.sbt.packager.jdkpackager.JDKPackagerDeployPlugin, com.typesafe.sbt.packager.jdkpackager.JDKPackagerPlugin, com.typesafe.sbt.packager.linux.Li
nuxPlugin, com.typesafe.sbt.packager.rpm.RpmDeployPlugin, com.typesafe.sbt.packager.rpm.RpmPlugin, com.typesafe.sbt.packager.universal.UniversalDeployPlugin, com.typesafe.sbt.packager.universal.Univer
salPlugin, com.typesafe.sbt.packager.windows.WindowsDeployPlugin, com.typesafe.sbt.packager.windows.WindowsPlugin, com.typesafe.sbt.web.SbtWeb, com.typesafe.sbt.jse.SbtJsEngine, com.typesafe.sbt.jse.S
btJsTask, com.typesafe.sbt.coffeescript.SbtCoffeeScript, com.typesafe.sbt.less.SbtLess, com.typesafe.sbt.jshint.SbtJSHint, com.typesafe.sbt.rjs.SbtRjs, com.typesafe.sbt.digest.SbtDigest, com.typesafe.
sbt.mocha.SbtMocha, com.typesafe.sbteclipse.plugin.EclipsePlugin
[info] sbt, sbt plugins, and build definitions are using Scala 2.10.4
[ch6_implicits] $

Java版本是：

C:\Play\exp\ch6_implicits>java -version
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

C:\Play\exp\ch6_implicits>javac -version
javac 1.8.0_45

任何想法是什么问题以及如何解决这个问题？

到目前为止，其他示例已在我的环境中编译并运行且没有错误。

感谢您的支持！

4 个答案:

答案 0 :(得分：44)

默认情况下，播放2.4生成依赖注入路由器，与以前不同，它使用静态路由器。你有两个选择，从build.sbt中删除routesGenerator行，这样play会生成一个静态路由器，或者（更好）制作你的控制器类而不是对象，并使用依赖注入。

答案 1 :(得分：1)

从你的文件build.sbt中删除routesGenerator：= InjectedRoutesGenerator并且一切正常

答案 2 :(得分：0)

将您的对象更改为这样的类：

object Shop extends Controller with WithCart {
class Shop extends Controller with WithCart {

object Application extends Controller with WithCart {
class Application extends Controller with WithCart {

答案 3 :(得分：0)

在您的conf / application.conf文件中包含以下代码：

play.allowGlobalApplication = true

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