servlet not working

Hi ,
I am trying to insert an image in the table.Here is the jsp for that where I give an image name..Nothing happens once I run it..The browser is blank..The code works fine when I put it in a java class with a main method..Could someone please tell me what the problem is..I am new to java and struggling with this..

Here is the servlet

public class ImageServlet extends HttpServlet 
{
    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException 
    {
             
         
         String imagename= request.getParameter("image");
 
          try
          {
          performQuery(imagename);
          }
          catch(Exception e)
          {
              
          }
         
      
    }
     public void performQuery(String imagename) throws Exception
       {
         
         Connection conn1 = null;
         String serverName = "csoracle10g.utdallas.edu";
         String portNumber = "1521";
         String sid = "orcl";
         String url = "jdbc  :-o	  racle:thin:@" + serverName + ":" + portNumber + ":" + sid;
         String username = "51000";
         String password = "ffol";
     
      try{
           DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
           conn1 = DriverManager.getConnection(url, username, password);
           Statement stmt=null;
           stmt=conn1.createStatement();
           conn1.setAutoCommit(false);
           String rowInsertSql = ("insert into image_table (id, image) values (2,ordsys.ordimage.init())");
           stmt.executeQuery(rowInsertSql);
           String rowSelectSQL = "select image from image_table where id=2 for update";
           OracleResultSet rset = (OracleResultSet)stmt.executeQuery(rowSelectSQL);
           rset.next();
           OrdImage imageProxy = (OrdImage)rset.getORAData("image", OrdImage.getORADataFactory());
           rset.close();
           String filename="C:\\Documents and Settings\\Compaq_Owner\\Test1\\" + imagename;
           imageProxy.loadDataFromFile(filename);
           imageProxy.setProperties();
           String updateSQL = "update image_table set image=? where id=2";
           OraclePreparedStatement opstmt = (OraclePreparedStatement)conn1.prepareStatement(updateSQL);
           opstmt.setORAData(1, imageProxy);
           opstmt.execute();
           opstmt.close();
           String rowSelectSQL1 = "select image from image_table where id=2";
           OracleResultSet rset1 = (OracleResultSet)stmt.executeQuery(rowSelectSQL1);
           rset1.next();
           OrdImage imageProxy1 = (OrdImage)rset1.getORAData("image", OrdImage.getORADataFactory());
           rset1.close();
           int height = imageProxy1.getHeight();
           int width = imageProxy1.getWidth();
           System.out.println(height);
           System.out.println(width);
    
            conn1.close();
     
              
           
        }
        catch (SQLException e) 
        {
           e.printStackTrace();
        }   
      
       }
   
 
    
    
 public void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException 
    {
            
         processRequest(request,response);
         
    }
    
    
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException
    {
           processRequest(request,response); 
    }
    
    /** Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}

[ October 23, 2006: Message edited by: Ben Souther ]

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Are you sure that your servlet is getting called???

Post your web.xml, if you can.

Moreover it seems you are not putting any logging system or System.out.println to debug. Without debugging the app you can never find whats wrong.

In the servlet, I don't see anything being sent to the client. No output, no redirecting, no forwarding. Maybe I should look again ?

In your servlet you can either call getServletOutputStream() or getWriter() method on the response object. You cant call both.
Since your jsp is also a servlet, and getWriter() will be automatically called by the container to provide you out implicit valriable. So you cant call getServletOutputStrem() in JSP. And using your out variable you cant send any binary data. So you cant process images in your JSP

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