Dynamically create image from JAX-RS servlet

Question

Is it possible to create a PNG image and output it straight to the browser as part of a JAX-RS resource?

Something like this:

@Path(\"img/{externalId         


        

Answer 1

Take a look at http://jersey.java.net/nonav/documentation/latest/user-guide.html#d4e323:

 @GET
 @Path("/images/{image}")
 @Produces("image/*")
 public Response getImage(@PathParam("image") String image) {
     File f = new File(image);

     if (!f.exists()) {
         throw new WebApplicationException(404);
     }

     String mt = new MimetypesFileTypeMap().getContentType(f);
     return Response.ok(f, mt).build();
 }