Question

I can get an image as a byte[] and store it in my database using form.jsp and FormFile.
Now I need to be able to retrieve that byte[] and display it back in the JSP as an image. Is there a way to create a resource and retrieve that image?

Answer 1

public ActionForward pageLoad(ActionMapping a,ActionForm b,HttpServletRequest c,HttpServletResponse d){
    b.setImageData(loadImageData());
    return a.findForward("toPage");
}

public ActionForward imageLoad(ActionMapping a,ActionForm b,HttpServletRequest c,HttpServletResponse d){
    byte[] tempByte = b.getImageData();
    d.setContentType("image/jpeg");
    ServletOutputStream stream = d.getOutputStream();
    /*
        Code to write tempByte into stream here.
    */
    return null;
}

Write the tempByte into stream, flush and close it. return null from the action.

now call the action from inside an <img src="yourAction.do">