Changes not showing in JSP files

I am running tomcat and using JSP.
I use winscp to log in and make changes to the pages.
Those changes are not showing up unless I restart tomcat and delete the temporary files.
I have talked to a bunch of people about this and nobody has any ideas, admitidly they are not tomcat experts.
Is there anyone out there who can give me any advice?

few questions.
which version of tomcat are you using? are you uploading the individual files or a war?

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BLOB image not shows in JSP page!!

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I had tried to configure how to show BLOB image to jsp page . The code are works fine and servlet works ok but image can not show only. can you help me that what need to be added. Please help me.
Can any experts help me? BLOB image not shows in JSP page. I am using ADF11g/DB 10gR2.
My as Code follows:
_1. Servlet Config_
    <servlet>
        <servlet-name>images</servlet-name>
        <servlet-class>his.model.ClsImage</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>images</servlet-name>
        <url-pattern>/render_images</url-pattern>
    </servlet-mapping>
3. class code
package his.model;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Iterator;
import java.util.Map;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import oracle.jbo.ApplicationModule;
import oracle.jbo.Row;
import oracle.jbo.ViewObject;
import oracle.jbo.client.Configuration;
import oracle.jbo.domain.BlobDomain;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class ClsImage extends HttpServlet
//private static final Log LOG = LogFactory.getLog(ImageServlet.class);
private static final Log LOG = LogFactory.getLog(ClsImage.class);
public void init(ServletConfig config)
    throws ServletException
    super.init(config);
public void doGet(HttpServletRequest request,
                    HttpServletResponse response)
    throws ServletException, IOException
    System.out.println("GET---From servlet============= !!!");
    String appModuleName = "his.model.ModuleAssetMgt";//this.getServletConfig().getInitParameter("ApplicationModuleName");
    String appModuleConfig = "TempModuleAssetMgt";//this.getServletConfig().getInitParameter("ApplicationModuleConfig");
    String voQuery ="select ITEM_IMAGE from MM_ITEMIMAGE where IMAGE_NO = 'P1000000000006'" ;// 'P1000000000006' this.getServletConfig().getInitParameter("ImageViewObjectQuery");
    String mimeType = "jpg";//this.getServletConfig().getInitParameter("gif");
    //?IMAGE_NO='P1000000000006'
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    ApplicationModule am =
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      ViewObject vo = am.createViewObjectFromQueryStmt("TempView2", voQuery);
    Map paramMap = request.getParameterMap();
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    int i=0;
    while (paramValues.hasNext())
      // Only one value for a parameter is expected.
      // TODO: If more then 1 parameter is supplied make sure the value is bound to the right bind
      // variable in the query! Maybe use named variables instead.
      String[] paramValue = (String[])paramValues.next();
      vo.setWhereClauseParam(i, paramValue[0]);
      i++;
   System.out.println("before run============= !!!");
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    vo.executeQuery();
    // Get the result (only the first row is taken into account
    System.out.println("after run============= !!!");
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    //System.out.println("============"+(BlobDomain)product.getAttribute(0));
    BlobDomain image = null;
    // Check if a row has been found
    if (product != null)
      System.out.println("onside product============= !!!");
       // We assume the Blob to be the first a field
       image = (BlobDomain) product.getAttribute(0);
       //System.out.println("onside run product============= !!!"+image.toString() +"======="+image );
       // Check if there are more fields returned. If so, the second one
       // is considered to hold the mime type
       if ( product.getAttributeCount()> 1 )
          mimeType = (String)product.getAttribute(1);
    else
      //LOG.warn("No row found to get image from !!!");
      LOG.warn("No row found to get image from !!!");
      return;
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    // Set the content-type. Only images are taken into account
    response.setContentType("image/"+ mimeType+ "; charset=windows-1252");
    OutputStream os = response.getOutputStream();
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    byte[] buffer = new byte[4096];
    int nread;
    while ((nread = is.read(buffer)) != -1)
      os.write(buffer, 0, nread);
      //System.out.println("Set Image============= loop!!!"+(is.read(buffer)));
    os.close();
    // Remove the temporary viewobject
    vo.remove();
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    Configuration.releaseRootApplicationModule(am, false);
} 3 . Jsp Tag
<af:image source="/render_images" shortDesc="Item"/> Thanks.
zakir
====
Edited by: Zakir Hossain on Apr 23, 2009 11:19 AM

Hi here is solution,
later I will put a project for this solution, right now I am really busy with ADF implementation.
core changes is to solve my problem:
    byte[] buffer = new byte[image.getBufferSize()];
    int nread;
    vo.remove();
    while ((nread = is.read(buffer)) != -1) {
      os.write(buffer);
    }All code as below:
Servlet Code*
public void doGet(HttpServletRequest request,
                    HttpServletResponse response) throws ServletException,
                                                         IOException {
    String appModuleName =
      "his.model.ModuleAssetMgt";
    String appModuleConfig =
      "TempModuleAssetMgt";
String imgno = request.getParameter("imgno");
    if (imgno == null || imgno.equals(""))
      return;
    String voQuery =
      "select ITEM_IMAGE from MM_ITEMIMAGE where IMAGE_NO = '" + imgno + "'";
    String mimeType = "gif";
    ApplicationModule am =
      Configuration.createRootApplicationModule(appModuleName,
                                                appModuleConfig);
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    ViewObject vo = null;
    String s;
      vo = am.createViewObjectFromQueryStmt("TempView2", voQuery);
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    vo.executeQuery();
    // Get the result (only the first row is taken into account
    Row product = vo.first();
    BlobDomain image = null;
    // Check if a row has been found
    if (product != null) {
      // We assume the Blob to be the first a field
      image = (BlobDomain)product.getAttribute(0);
      // Check if there are more fields returned. If so, the second one
      // is considered to hold the mime type
      if (product.getAttributeCount() > 1) {
        mimeType = (String)product.getAttribute(1);
    } else {
      LOG.warn("No row found to get image from !!!");
      return;
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    response.setContentType("image/" + mimeType);
    OutputStream os = response.getOutputStream();
    InputStream is = image.getInputStream();
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    byte[] buffer = new byte[image.getBufferSize()];
    int nread;
    vo.remove();
    while ((nread = is.read(buffer)) != -1) {
      os.write(buffer);
    is.close();
    os.close();
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Configuration.releaseRootApplicationModule(am, true);
}Jsp Tag
<h:graphicImage url="/render_images?imgno=#{bindings.ImageNo.inputValue}"
                                                    height="168" width="224"/>

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Changes not showing in JSP files

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