How to change the http port for play framework 2.4.1?

Question

I come from a play 1.2.7 application and currently getting started with play framework 2.4.1 and scala. For a start I use the activator web ui to manage applications and the

Answer 1

Add the following to build.sbt of your project where <port> should be replaced with your desired port number.

build.sbt

fork in run := true
javaOptions in run += "-Dhttp.port=<port>"

Expected console output in Activator UI on run

Setting up Play fork run ... (use Ctrl+D to cancel)

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

p.a.l.c.ActorSystemProvider - Starting application default Akka system: application
p.c.s.NettyServer - Listening for HTTP on /0:0:0:0:0:0:0:0:<port>

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

Answer 2

Through the application.conf in production:

play.server.http.port = 80

When you run the application with SBT:

PlayKeys.devSettings := Seq("play.server.http.port" -> "80")

Using run command:

$ run 80

For more details please refer the below links:

documentation-Config File

documentation-Server configuration options

Answer 3

Just a short note concerning the run command (tested with Play! 2.4):

At least on Windows activator run -Dhttp.port=80 does NOT work, but activator (hit enter) and then run -Dhttp.port=80 works

Answer 4

Try this out:

activator "run 9500"

in terminal from your project folder.

Answer 5

This command work for me guys:

activator "~run 3333"