DiskFileItemFactory factroy = new DiskFileItemFactory();
  factroy.setSizeThreshold(0);
  File a = new File("D:\\1\\");
 
  try {
   a.mkdirs();
   //a.createTempFile("", "");
  } catch (Exception e1) {
   // TODO Auto-generated catch block
   e1.printStackTrace();
  }
  factroy.setRepository(a);
 
  ServletFileUpload upload = new ServletFileUpload(factroy);
 
  upload.setFileSizeMax(1024*100);
  try {
   List fileItems = upload.parseRequest(request);
   System.out.println(fileItems.size());
   for(int i=0;i<fileItems.size();i++)
   {
    FileItem file = (FileItem)fileItems.get(i);
    if(! file.isFormField())
    {
     file.write(new File("D:\\1\\" + getFileName(file.getName()) + "." + getFileExt(file.getName()) ));
     //System.out.println("*********" + file.getName());
    
    }
   }
  
   System.out.println("secess");
  } catch (Exception e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }  


本文来源：http://blog.csdn.net/abccba9978/archive/2007/08/05/1727210.aspx