Getting started with a new web framework can be a bit scary. Luckily, Scalatra is easy to install, as it has relatively few dependencies.
It can run on Windows, Mac OS X, Linux, or BSD.
1. Install a JDK
Scalatra is web micro-framework written in Scala, so you’ll need to have a Java Development Kit (JDK) installed.
Many systems come with a JDK pre-loaded.
java -version and
javac -version in a terminal to find if yours
does. The output should look something like this:
$ java -version java version "1.8.0_131" Java(TM) SE Runtime Environment (build 1.8.0_131-b11) Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)
$ javac -version javac 1.8.0_131
You need Java 8 (Oracle’s JDK or OpenJDK), which will show up as version 1.8. Java 7 is no longer supported in Scalatra 2.5.
2. Install sbt
Once you’re sure you’ve got Java installed, you will need to install the sbt.
sbt is a build tool for Scala, Java, and more. It can create a new project from the template repository.
In order to create a new project of Scalatra from the template, sbt 0.13.13 or later needs to be installed. To install sbt, refer to the setup page of sbt.
For example, if it is macOS, you can install it by brew command as follows.
$ brew install sbt $ sbt ... ... > sbtVersion [info] 0.13.15
With installation out of the way, head over to the “first project“ page, which will show you how to generate, build, and run a Scalatra application.