Question

I want to display an image AND a String using Spring MVC 3.
Both are instance variables of a POJO that I retreive from the database using Hibernate.

@Entity
@Table(name = "document")
public class Document {

    //id        

    @Column(name = "name")
    private String name;  // the String

    @Basic(fetch = FetchType.LAZY)
    @Column(name="content")
    private byte [] image;
//getters setters

I want to display the image on the .jsp page using Spring MVC 3 AND display the String next to it.
Currently I can display ONLY the picture by streaming it and printing the String to the console but it is not what I want. (Of course I can display the String, but if I display the String, then I am not able to display the image.) I want to display both, on the same page, next to eachother.

@RequestMapping(value = "/displayDocument", method = RequestMethod.POST)
    public void displayDocument(@RequestParam("documentId") String documentId, HttpServletResponse response) {

        Document doc = documentService.get(Long.valueOf(documentId));

        System.out.println(doc.getName());

        if (doc.getImage() != null) {
            response.setContentType("image/jpg");
            try {
                response.getOutputStream().write(doc.getImage());
                response.getOutputStream().flush();
                response.getOutputStream().close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }

I do not want to beleive that there isn’t any clever solution to acheive this….

Answer 1

I think you are a bit mistaken about how http protocol works. Images are always fetched in a seperate request by the web browser automatically (this also goes for <script>, <style>, <img> and some other tags).
So basicly, you want to construct a JSP page where you display the name, together with

<img src="/viewimage?id=${theDocumentId}"/>.

viewimage might be a servlet where you serve the image.