Grails: displaying created image in gsp

Question

I\'m very new to Grails so there\'s probably a very simple answer to this question. I\'m trying to display a dynamically created image in a gsp. The image is NOT stored in

Answer 1

Your gsp:

<img src="${createLink(controller: "image", action: "draw")}" />

Your controller:

def draw() {
  byte[] imageInBytes = imageService.getImageInBytes() //should return byte array 

  response.with{
    setHeader('Content-length', imageInBytes.length.toString())
    contentType = 'image/jpg' // or the appropriate image content type
    outputStream << imageInBytes
    outputStream.flush()
  }
}

Answer 2

For any reasons the above solutions does not display any image. I used:

<img src='${createLink(controller: "myController", action: "displayGraph")}' />

instead.