§Creating a new application
§Create a new application with the activator command
activator command can be used to create a new Play application. Activator allows you to select a template that your new application should be based off. For vanilla Play projects, the names of these templates are
play-scala for Scala based Play applications, and
play-java for Java based Play applications.
Note that choosing a template for either Scala or Java at this point does not imply that you can’t change language later. For example, you can create a new application using the default Java application template and start adding Scala code whenever you like.
To create a new vanilla Play Scala application, run:
$ activator new my-first-app play-scala
To create a new vanilla Play Java application, run:
$ activator new my-first-app play-java
In either case, you can replace
my-first-app with whatever name you want your application to use. Activator will use this as the directory name to create the application in. You can change this name later if you choose.
Once the application has been created you can use the
activator command again to enter the Play console.
$ cd my-first-app $ activator
If you wish to use other Activator templates, you can do this by running
activator new. This will prompt you for an application name, and then give you a chance to browse and select an appropriate template.
§Create a new application with the Activator UI
New Play applications can also be created with the Activator UI. To use the Activator UI, run:
$ activator ui
You can read the documentation for using the Activator UI here.
§Create a new application without Activator
It is also possible to create a new Play application without installing Activator, using sbt directly.
First install sbt if needed.
Create a new directory for your new application and configure your sbt build script with two additions.
// The Typesafe repository resolvers += "Typesafe repository" at "https://repo.typesafe.com/typesafe/releases/" // Use the Play sbt plugin for Play projects addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.3.x")
Be sure to replace
2.3.x here by the exact version you want to use. If you want to use a snapshot version, you will have to specify this additional resolver:
// Typesafe snapshots resolvers += "Typesafe Snapshots" at "https://repo.typesafe.com/typesafe/snapshots/"
To ensure the proper sbt version is used, make sure you have the following in
build.sbt for Java projects:
name := "my-first-app" version := "1.0" lazy val root = (project in file(".")).enablePlugins(PlayJava)
…or Scala projects:
name := "my-first-app" version := "1.0.0-SNAPSHOT" lazy val root = (project in file(".")).enablePlugins(PlayScala)
You can then launch the sbt console in this directory:
$ cd my-first-app $ sbt
sbt will load your project and fetch the dependencies.
Next: Anatomy of a Play application
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