Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
388 views
in Technique[技术] by (71.8m points)

playframework 2.0 - How to render a binary with play 2.0?

I am stuck on an obvious one:

How to render an image from a controller using Play 2.0 ?

With play 1.0 there was a renderBinary() method. It is now gone.

Play-RC1 only defined 3 content types: Txt, Html and Xml....

Therefore, how to serve a binary from the controller?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

In Scala with Play 2.x, instead of renderBinary() or Binary() juste use

Ok(byteArray).as(mimeType)

In the previous example, this gives:

import play.api._
import play.api.Play.current
import play.api.mvc._

object Application extends Controller {

  def index = Action {
    val app = Play.application
    var file = Play.application.getFile("pics/pic.jpg")
    val source = scala.io.Source.fromFile(file)(scala.io.Codec.ISO8859)
    val byteArray = source.map(_.toByte).toArray
    source.close()

    Ok(byteArray).as("image/jpeg")
  }
}

Hope this helps.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...