jsfbufferedimageuicomponents

How to display buffered image in JSF without writing image on disk?

I have a buffered image and I need to display it in a JSF page. Is there any UI component available which can display a buffered image directly? I am using JSF 2.2.

Solution

  • If you only have the buffered image, you could use the Omnifaces library to which allows you to render images by passing a byte[] to the component 

    <o:graphicImage value="#{bean.image}" dataURI="true" />

    If you have the buffered image you could convert to byte array like so: 

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write([image],[image_extension], baos);
byte[] imageToPassAsValueAttr = baos.toByteArray();

    You could also create a servlet to receive the image id as a get request and from that point on you can get the parameter value, find the resource and write the image content to response.

    @BalusC has a nice example here