RE: File Upload

[Schachter, Michael]

 Ji Rong Hu,

The file upload example you are using is old and uses the deprecated (or at
least not recommended to use) getFileData() method.  The recomended method
is to use the getInputStream() method to obtain an input stream to the form
file and read it that way.  I attached the newer UploadAction source file
that uses this method.  You can find this in any recent build of Struts.

-----Original Message-----
From: Ji Rong Hu
To: [EMAIL PROTECTED]
Sent: 2/21/01 10:45 PM
Subject: Re: File Upload



Hi, guys, I am going to lunch. I think it's wise to use this time to
just ask
before I doing a test, can anyone tell me that:

is these data, include file data, still avaiable in HttpServletRequst
object?
Why, because out old EJB object extract these data from
HttpServletRequst.

Thanks,
Jirong


The following is the "upload" example which enables you get these info
from Form
bean.
=====================================

public class UploadAction extends Action {

     public ActionForward perform(ActionMapping mapping,
                                                     ActionForm    form,
                                                     HttpServletRequest
request,
                                                     HttpServletResponse
response) {

          if (form instanceof UploadForm) {

               UploadForm theForm = (UploadForm) form;

               //retrieve the text data
               String text = theForm.getTheText();

               //retrieve the file representation
               FormFile file = theForm.getTheFile();

               //retrieve the file name
               String fileName= file.getFileName();

               //retrieve the content type
               String contentType = file.getContentType();

               //retrieve the file size
               String size = (file.getFileSize() + " bytes");

               String data = null;

               try {
                    //retrieve the file data
                    data = new String(file.getFileData());
               }
               catch (FileNotFoundException fnfe) {
                    return null;
               }
               catch (IOException ioe) {
                    return null;
               }

               //place the data into the request for retrieval from
display.jsp
               request.setAttribute("text", text);
               request.setAttribute("fileName", fileName);
               request.setAttribute("contentType", contentType);
               request.setAttribute("size", size);
               request.setAttribute("data", data);

               //destroy the temporary file created
               file.destroy();

               //return a forward to display.jsp
               return mapping.findForward("display");
          }

          //this shouldn't happen in this example
          return null;
     }




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UploadAction.java