How to show long raw picture in adf jsp

Question

Pictures are stored in long raw column in oracle database. I have followed to show picture based on servlet to retrieve image from blob column but to no success. Kindly help.

Answer 1

Thanks for helping.
I have  already used following servlet but no picture. I think problem is in specific line because image is in Long Raw instead of Blob..
Blob blob = rs.getBlob("PLAN_PIC");
Image Servlet
public class imageservlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=UTF-8";
    public void init(ServletConfig config) throws ServletException {
        super.init(config);
    public void doGet(HttpServletRequest request,
                      HttpServletResponse response) throws ServletException,
                                                           IOException {
        response.setContentType(CONTENT_TYPE);
        String imageId = request.getParameter("id");
       // String imageId="4000";
        OutputStream os = response.getOutputStream();
        Connection conn = null;
        try {
            Context ctx = new InitialContext();
            //Datasource as defined in <res-ref-name> element of weblogic.xml
            DataSource ds = (DataSource)ctx.lookup("java:comp/env/jdbc/DYEDS");
            conn = ds.getConnection();
            PreparedStatement statement =
                conn.prepareStatement("SELECT plan_no, plan_pic " +
                                      "FROM tblplanpics " +
                                      "WHERE plan_no = ?");
           // statement.setInt(1, new Integer(imageId));
            statement.setString(1,imageId);
            ResultSet rs = statement.executeQuery();
            if (rs.next()) {
         //       Blob blob = rs.getBlob("PLAN_PIC");
              Blob blob = rs.getBlob("PLAN_PIC");
                BufferedInputStream in =
                    new BufferedInputStream(blob.getBinaryStream());
                int b;
                byte[] buffer = new byte[10240];
                while ((b = in.read(buffer, 0, 10240)) != -1) {
                    os.write(buffer, 0, b);
                os.close();
        } catch (Exception e) {
            System.out.println(e);
        } finally {
            try {
                if (conn != null) {
                    conn.close();
            } catch (SQLException sqle) {
                System.out.println("SQLException error");