CODEWITHSUNDEEP
grailsgroovybufferedimage
Oleksandr
Oleksandr

Reputation: 3801

Grails: write BufferedImage into response

I have ImageController with resize method:

def resize = {
    def pht = Photos.findByTypeAndPhotourl(params.type, params.photourl)
    if (pht != null) {
      BufferedImage source = ImageIO.read(new File(pht.photo))
      ImageResizer imageResizer = new ImageResizer()
      BufferedImage result = imageResizer.resize(source, Integer.parseInt(params.width), Integer.parseInt(params.height))
      imageResizer.writePNG(result, params.name)
      
      render "OK"
    } else {
      render "Error"
    }
  }

As you can see - it writes BufferedImage instance (resized image) on the disk. But I want to return image in response, so resized image will be displayed in browser when user requests resize method (or they will be able to download it). It's smth like file serving problem...

Is this the right way to do it?

ImageIO.write(result, "png", response.getOutputStream())

Upvotes: 1

Views: 2564

Answers (1)

tim_yates
tim_yates

Reputation: 171084

Yeah, ImageIO is the way to go

See

Image resize in Grails

Upvotes: 2

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