Fileupload uploads empty 0 kb files

Question

I have fileupload code same with on this link
http://jakarta.apache.org/commons/fileupload/using.html
after i ran the code i have 0 kb jpg files with correct names but they are empty...
what can the problem be...thank you...

Answer 1

this is my code thanks
package com.albumyap.genel;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
//import javax.servlet.jsp.JspWriter;
import org.apache.commons.fileupload.*;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.servlet.ServletRequestContext;
import com.albumyap.ConnectionString;
import com.albumyap.genel.LogManager;
import com.albumyap.guvenlik.Server_Bilgisi;
import com.albumyap.genel.thumbnail;
public class Yukle {
     public static String klasor_adres,resim_adi;
     public static String mod="";
     public static void YukleIslem(HttpServletRequest request,HttpServletResponse response)
          throws IOException,Exception{
          if(null!=request.getParameter("mod"))
               mod=request.getParameter("mod");
          // Check that we have a file upload request
          boolean isMultipart = ServletFileUpload.isMultipartContent(new ServletRequestContext(request));
          if(!isMultipart && mod!="yukle")
               return;
          String klasor_no,kullanici_adi;
          if(null!=request.getParameter("klasor_no"))
               klasor_no=request.getParameter("klasor_no");
          else {
               response.sendRedirect("gecersiz_islem.jsp");
               return;
          HttpSession sifrelisayfa=request.getSession();
          kullanici_adi=(String)sifrelisayfa.getAttribute("kullanici_adi");
          ConnectionString.SQLYukleKlasorNo(klasor_no);
          while(ConnectionString.sonuc.next())
               klasor_adres=ConnectionString.sonuc.getString("Klasor_Hex");
          ConnectionString.SSKapat();
          ConnectionString.Kapat();
          klasor_adres=Server_Bilgisi.ResimYolu()+kullanici_adi+"\\"+klasor_adres+"\\";
//          Create a factory for disk-based file items
          FileItemFactory factory = new DiskFileItemFactory();
//          Create a new file upload handler
          ServletFileUpload upload = new ServletFileUpload(factory);
//          Parse the request
          try {
               List /* FileItem */ items = upload.parseRequest(request);
               handleItems(items.iterator());                         
          } catch (FileUploadException e) {
               // TODO Auto-generated catch block               
          //response.sendRedirect("album_goruntule.jsp?klasor_no="+klasor_no+"");
          //return;
     private static void handleItems(Iterator iter)
     while(iter.hasNext())
          //itemleri listeden tek tek ele al
          FileItem item = (FileItem) iter.next();
          if(!item.isFormField())
               //eger item bir data ise
               String fileName=item.getName().toLowerCase();
               if(isImage(fileName))
                    //eger item bir resim ise (yani sonu jpg vs ile bitiyorsa) kaydet
                    saveFile(item);
               else
               {//resim degil ise bir sey yapma
     private static boolean isImage(String fileName)
     return fileName.endsWith("jpg") || fileName.endsWith("png") || fileName.endsWith("gif") || fileName.endsWith("jpeg");          
     private static void saveFile(FileItem item)
          resim_adi=String.copyValueOf((klasor_adres+item.getName()).toCharArray(),(klasor_adres+item.getName()).lastIndexOf("\\")+1,(klasor_adres+item.getName()).length()-(klasor_adres+item.getName()).lastIndexOf("\\")-1);
          try {
               //java.io.File fullFile = new java.io.File(item.getName());
          java.io.File savedFile = new java.io.File(klasor_adres+resim_adi);
               item.write(savedFile);
               //thumbnail yarat
               thumbnail.ThumbnailYarat(klasor_adres+resim_adi,klasor_adres+"thmb_"+resim_adi,"112","84","100");
          } catch (Exception e) {
               // TODO Auto-generated catch block
               LogManager.log(e.getMessage());
}