Uploading and downloading files from a web app (Urgent!!)

Hi everyone:
I'm developing an application in PL/SQL to upload and download files from an HTML webpage. I congured the document table and the parameters necessary in the DAD of my application.
when I upload the file using my webpage that file info is automatically uploaded to the doc table. This is as far as I have gotten.
I need to do the following:
- Place the uploaded file into a column in another table in my database as part of a text message (think of it as an email message), and delete the file from the doc table (as this is thought to be a temp table that holds the file when uploaded from my webpage)
- Retreive the file so that it can be downloaded from another web page.
The file can be a PDF, WORD DOC, etc...
I now that I can do this with InterMedia but I haven't figured out how :(
Can anyone please point me to an example or some documentation that can guide me through the process.
DB VERSION: 8.1.7
IAS VERSION: 1.0.2.2
Thanks,
Carlos Abarca

The idea was for you to look at the code and get an idea of how to access the BLOB in the document table. IF you look at the procedure
insert_new_photo( new_description IN VARCHAR2,
new_location IN VARCHAR,
new_photo IN VARCHAR2 )
It shows how to access the blob that is stored in the document table. You can then copy this blob to your own table using the DBMS_LOB package.
Hope this helps,
Larry

Similar Messages

About "Upload and download files from ADF into blob type colum."

hi
Using JDeveloper 10.1.3.3.0 I have tried the example available for download from this blog post by Jakub Pawlowski:
"Upload and download files from ADF into blob type colum."
at http://kuba.zilp.pl/?id=1
First a thank you to Jakub for this interesting example.
I have a question about a PDF file that I uploaded using the example.
The file has a size of 10445518 bytes.
After I upload that file, the blob column has a value with a size of 10445516 bytes, 2 bytes less.
SQL> select file_name, dbms_lob.getlength(stored_file) from blob_table;
FILE_NAME
DBMS_LOB.GETLENGTH(STORED_FILE)
ADF-DeveloperGuide-4GL-B25947_01.pdf
                       10445516If I download that file using the example, it has the same size as the blob value, 10445516 bytes.
If I open the downloaded file, using Adobe Reader 8.1.1, it first shows this message:
"The file is damaged but is being repaired."
After that, there is not problem using the PDF file in Adobe Reader.
I have tried this with both Internet Explorer 6 and Firefox 2.0.0.11.
I have also tried this with other (smaller) files, and those upload and download correctly.
question:
Why are those 2 bytes lost during upload?
many thanks
Jan Vervecken

Hi!
I can only post you my code that works for me and as I said I had same problems but can't remember what solved them. My code:
public void fileUploaded(ValueChangeEvent event)
    FacesContext fc = FacesContext.getCurrentInstance();
    UploadedFile file = (UploadedFile) event.getNewValue();
    if (file != null && file.getLength() > 0)
      // here I have some messages written and a call to the method on AM to save the uploaded file to the DB
private BlobDomain newBlobDomainForInputStream(InputStream in)
    throws SQLException, IOException
    BlobDomain loBlob = new BlobDomain();
    OutputStream out = loBlob.getBinaryOutputStream();
    writeInputStreamToWriter(in, out);
    in.close();
    out.close();
    return loBlob;
private static void writeInputStreamToWriter(InputStream in,
                                               OutputStream out)
    throws IOException
    byte[] buffer = new byte[8192];
    int charsRead = 0;
    while ((charsRead = in.read(buffer, 0, 8192)) != -1)
      out.write(buffer, 0, charsRead);
   * Launch the upload - see fileUploaded() for actual upload handling.
   * @return null navigation event - we stay on this page
public String UploadButton_action()
    if (this.getMyInputFile().getValue() == null)
      FacesContext context = FacesContext.getCurrentInstance();
      FacesMessage message =
        new FacesMessage(FacesMessage.SEVERITY_WARN, JSFUtils.getStringFromBundle("fileupload.emptyfielderror"),
                         null);
      context.addMessage(this.getMyInputFile().getId(), message);
    return null;
   * Setter for inputFile UI Component.
   * @param inputFile inputFile UI component
public void setMyInputFile(CoreInputFile inputFile)
    this.myInputFile = inputFile;
   * Getter for inputFile UI Component.
   * @return inputFile UI component
public CoreInputFile getMyInputFile()
    return myInputFile;
}fileUploaded is a valueChangeListener on inputFile and UploadButton_action is as the name says the action for upload button.
Hope this helps. If not, than your problem is probably not the same as mine was, although the message about file corrupted was the same.
Next thing you can check in this case is if your file exceeds max file upload size. I don't know the exact default value, but if the file is too long I think this upload logic will upload only a part of the file and save it to the DB which can also lead to the same file corrupted error.
You can set the max upload value in web.xml like this:
<context-param>

<param-name>oracle.adf.view.faces.UPLOAD_MAX_MEMORY</param-name>

<param-value>5120000</param-value>
</context-param>
<context-param>

<param-name>oracle.adf.view.faces.UPLOAD_MAX_DISK_SPACE</param-name>

<param-value>15360000</param-value>
</context-param>

Upload and download files from ADF 11g into blob type colum

Hi Guys ,
Anybody help me how to upload and download the *.pdf / *.doc file in blob object in ADF 11G.
Thanks ,
Ashwani Yadav

You should try the JDeveloper and ADF forum. This is the Oracle FORMS forum.
Craig...

Upload and Download file from filesystem

Hi all,
I have followed the instruction from the following thread
Store \ Retrieve files from file system
I managed to get it working for the uploading. I can see the file in my file system.
But my download process is not working. I wasn't really clear how to call the download procedure via on demand process, so I am doing it this way:
1. create page 0
2. create application item called FILESEQ ( to store the file id to be downloaded)
2. create application processs download_file which call the "download_my_file" procedure
    condition is "when request = "download_document"
3. on the page where i have the file list, on click on the file name I set
    * target to Page 0
    * request = "download_document"
    * set application item FILESEQ = #FILESEQ#
{code}
So I did all that but I am getting
{code}
Firefox can't find the file at http://las-apexdev/pls/apex/dev/f?p=145:0:4030629153244876:DOWNLOAD_MY_FILE:NO::FILESEQ:2011080007
{code}
To make sure that my application process and method to call that process work.
I changed the "download_my_file" procedure to grab the file from the table (just for troubleshooting purpose I store the file both in table and filesystem) and I was able to get the file.
So it's really a road block for me now. I hope someone can help me with this one.
Cheers,
Joel
This is the download procedure
{code}
CREATE OR REPLACE PROCEDURE download_my_file (p_file VARCHAR2)
IS
   v_length      NUMBER;
   v_file_name   VARCHAR2 (2000);
   Lob_loc       BFILE;
BEGIN
   SELECT file_name
     INTO v_file_name
     FROM attachment
    WHERE Fileseq = p_file;
   Lob_loc := BFILENAME ('LASITVENDORDB_FILE_DIR', v_file_name);
   v_length := DBMS_LOB.getlength (Lob_loc);
   OWA_UTIL.mime_header ('application/octet', FALSE);
   HTP.p ('Content-length: ' || v_length);
   HTP.p ('Content-Disposition: attachment; filename="' || SUBSTR (v_file_name, INSTR (v_file_name, '/') + 1) || '"');
   OWA_UTIL.http_header_close;
   WPG_DOCLOAD.download_file (Lob_loc);
END;
{code}

Hi,
DAD user need have read privilege to folder. If you use EPG then ANONYMOUS is DAD user.
If you use OHS or Apex Listener then DAD user is APEX_PUBLIC_USER (usually)
Regards,
Jari

Upload and download files from ADF into blob type colum

i have a question about Kuba's example ( http://kuba.zilp.pl/?id=1# )
after you have upload the word documents, and when u click on the downoad button that document is open... i want to know if it is possibile that afer you have download the document, you make some changes on it and then to save these changes on the database? any idea if this can be done? Thanks in advance :)

If you download the entire application from that link, the create.sql file is included in the \DBModel\model\zilp\testcase\dbmodel folder
It's a rather complicated matter in my opinion. Download the app, open it in JDev and use debug-mode to go through it step by step, so you can try to understand everything that happens.
Good luck :)

Uploading and downloading files in webdynpro java

how to upload and download xl files in webdynpro java application .

Hi ,
Refer these links they maybe helpful to you
You can check this sampple example from SDN
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/40db4a53-41a9-2910-d4a2-9c28283f6658
Uploading and Downloading Files In Web Dynpro Java
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/00062266-3aa9-2910-d485-f1088c3a4d71
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/202a850a-58e0-2910-eeb3-bfc3e081257f
http://help.sap.com/saphelp_nw04/helpdata/en/43/85b27dc9af2679e10000000a1553f7/content.htm
Uploading and Downloading Files In Web Dynpro Tables
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b0e10426-77ca-2910-7eb5-d7d8982cb83f
Some more links regarding Uploading and DownLoading Files
Uploading and downloading files
Upload and Download file through RFC called by java
Regards,
Saleem

Help required with downloading files from inside WEB-INF folder

I am working on a web application and I have an upload script which uploads different files to a foler called 'uploads' . To stop users from accessing the folder content I have put it in the /WEB-INF/.
In my JSP file, I used to link to the uploaded files like this before for users to download them :
if(filesListIterator.hasNext()
files = (FilesBean)filesListIterator.next();
<tr><td><a target="_new" href="<%=files.getFileName()%>">"<%=files.getFileName()%></a></td></tr>
}I need to know how to alter the above link to make it access/download files from the /WEB-INF/uploads/ while still restricting direct access to the files.
Thanks
Message was edited by:
topiwal

Anything under WEB-INF is not directly accessible via the browser/ client. You could try defining the JSP/ Servlet inside web.xml deployment descriptor and see if you can access the file from there.
I think a better way to accomplish this would be to keep the file outside WEB-INF , and use other techniques to protect the folder that contains the file - for example password-protection, or defining a .htaccess file and serving a 403 Forbidden error.

Download file from the web

Hey,
I'm struggling to download files from the web.
The first approach I though of was simply opening the url in Safari, but it would just open the file, not download it.
Then there is an application called "URL Access Scripting", but I can't figure out how it works.
That might sound stupid, since it has only a download and an upload command, but they do not work.
The download function asks for a file specification, what the #$^& is that?
I tried supplying a file, but to no avail.
For obvious reasons I can't make an alias of a not yet existing file, so what do I put in there?
It seems file specification is a deprecated format.
My last resort was running curl in a shell script, which works, but that feels hackish.
Is there any good way to do this?

Hi pepsel,
Let's take an example. Suppose that you want to download “UltiCalc Mac 2.5” (freeware) from [this Web page|http://www.apple.com/downloads/macosx/games/utilities/ulticalcmac.html]. You can proceed as follows:
--BEGINNING OF SCRIPT
set theURL to "http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty2.pl/product=23023&cat=25&platf orm=osx&method=sa/ulticalc_mac.zip"
set theFile to "/Users/pierre/Desktop/My_download.zip" -- same extension as the file to download
tell application "URL Access Scripting" to download theURL to theFile
--END OF SCRIPT
Of course, you should replace “pierre” with the name of your own home folder.
Hope it can help.
Message was edited by: Pierre L.

Upload and Download Files in an Application

hi,
I'm use Application Express 2.1.0.00.39 and the procedure " How to Upload and Download Files in an Application" :
http://download-west.oracle.com/docs/html/B16376_01/up_dn_files.htm#sthref177
I do not find the following tables or view:
HTMLDB_APPLICATION_FILES or wwv_flow_file_objects$.
which it is my error?
thanks.
Luigi

The documentation was for version 2.2. I could not find a 2.0 version of this howto:
http://download-west.oracle.com/docs/cd/B31036_01/doc/appdev.22/b28839/up_dn_files.htm#CIHCFCHF
However, I did find the correct name of the view for my version, HTMLDB_APPLICATION_FILES
After following the instructions in the above-mentioned "how to" (uploading and downloading files), I am a getting a html 403 error (You are not authorized to view this page) when I try to download from my custom table using the procedure specified in the howto.
I've granted execute on the procedure to public only (as specified in the doco).
err nvm. This has already been answered,
http://download-west.oracle.com/docs/cd/B25329_01/doc/appdev.102/b25309/adm_wrkspc.htm#BEJCGJFJ.
Message was edited by:
user507810

Uploading and Downloading files in an Applicaiton

I was able to successfully upload and download files stored in the database through Application Express by following the how to instructions at -->
http://download-uk.oracle.com/docs/cd/B31036_01/doc/appdev.22/b28839/up_dn_files.htm#CJAHDJDA
QUESTION: Is it possible to retrieve the downloaded file without granting execute to the download procedure? My DBA is requesting that I remove the procedures public grant, but when I do, I can no longer download the file.

As long as the Oracle username with the connection has 'execute' on the package 'public' should not need execute. Though I do not use the tools in question so there may be factors I am unaware of, but Oracle wise the connected session needs execute. If can get it from public, a role, or a direct grant. I just say use role based grants or direct grants rather than a public grant to get the privilege.
HTH -- Mark D Powell --

Minimum version required to upload and download files using Netweaver Gateway

What is the minimum service pack required to use the feature of Upload and download files using netweaver gateway. I already have a SP05

Hi,
as per this blog How to Read Photo from SAP system using SAP Gateway this should be possible with SP05.
also refer How To Upload and Download Files Using SAP NW Gateway SP06
Regards,
Chandra

How can I upload and download files with uiXML?

I want to implement upload and download files with uiXML. In some previouse topic I got answare to look in AbstractPageBroker class in JavaDOC. I did it but this is a very-very little resolution description for this problem. I think for developers YOU (UIX Team) must in very quick time to put some examples on the NET because this is a nice technology but with adecvate samplase and developers guide it will be dead very soon. I digging this forum for information. I see many many people have same problems about this technology. They like it and want to use and try but documentation is very very poor.
WE WANT EXAMPLES and separate forum for UIX. I think it deserve this.
If You have any more detailed documentation would be nice to put on the net. I have uixdemo.zip file but this is in very early fase of development. I downloaded it before fwe months. And now I can't find it anymore on youre site. What happend?

Attila -
I went back and re-read the JavaDoc for AbstractPageBroker and MultipartFormItem and put together the following sample PageBroker based on the description from the JavaDoc:
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import oracle.cabo.servlet.BajaContext;
import oracle.cabo.servlet.Page;
import oracle.cabo.share.util.MultipartFormItem;
import oracle.cabo.servlet.xml.UIXPageBroker;
* An extension of UIXPageBroker which stores all uploaded
* files in the temporary directory.
public class UploadingPageBroker extends UIXPageBroker
* Override of AbstractPageBroker.doUploadFile() which saves
* all files to the temporary directory.
protected String doUploadFile(
BajaContext context,
Page page,
MultipartFormItem item) throws IOException
// Get the location of the file to create in the temp directory.
// Of course a real application probably wouldn't upload files to
// the temp directory - just using this contrived example to
// demonstrate basic uploading support.
File file = _getFile(context, item);
if (file != null)
// Create a FileOutputStream. Of course, a real application would
// probably want to buffer the output
FileOutputStream out = new FileOutputStream(file);
// Write out the file
item.writeFile(out);
// Close up the output stream
out.close();
// We can return a value here to add to the PageEvent
// if so desired.
return null;
// Gets the File for the item that we are uploading
private File _getFile(
BajaContext context,
MultipartFormItem item
// Get the file name
String name = item.getFilename();
// If we don't have a file, bail...
if (name == null)
return null;
// Get the path to the temporary directory
File dir = _getTempDir();
// Return the File object
return new File(dir, name);
// Returns the path to the temprary directory
private File _getTempDir()
// Get the temporary directory from the ServletContext
ServletConfig sConfig = getServlet().getServletConfig();
ServletContext sContext = sConfig.getServletContext();
return (File)sContext.getAttribute("javax.servlet.context.tempdir");
In this sample, each uploaded file is simply saved in the temporary directory. You'll want to replace the code that creates the FileOutputStream for the uploaded file to use whatever OutputStream makes sense for your application.
BTW - I used the following UIX page to test this out:
<?xml version="1.0" encoding="UTF-8"?>
<page xmlns="http://xmlns.oracle.com/uix/controller">
<content>
<pageLayout xmlns="http://xmlns.oracle.com/uix/ui">
<contents>
<form name="uploadForm" usesUpload="true">
<contents>
<fileUpload name="uploadedFile"/>
<submitButton name="upload" text="Upload"/>
</contents>
</form>
</contents>
</pageLayout>
</content>
</page>
Hope this sample helps with the uploading part of your question. I'll see if I can provide a download sample in a later post.

How to Upload and Download Files

Dear Friends
I want to write code for Upload and Download file ( Group of Files). Please Guide me the right way I have a few java files and i have compiled that but i donot know how to run that file and i am stranger to java also.
Please send me reply and sugessest me.
my email id is [email protected]
Amogh

I have write a upload code, but the code can deal with txt onle, it can not deal with bmp or doc, what the matter?
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Upload extends HttpServlet {
     String rootPath;
     static final int MAX_SIZE = 102400;
     public void init(ServletConfig config) throws ServletException
          super.init(config);
     public void doGet(HttpServletRequest request,HttpServletResponse response)
     throws ServletException,IOException
          response.setContentType("text/html");
          PrintWriter out = new PrintWriter (response.getOutputStream());
          out.println("<html>");
          out.println("<head><title>Servlet1</title></head>");
          out.println("<body><form ENCTYPE=\'multipart/form-data\' method=post action=''><input type=file enctype=\'multipart/form-data\' name=filedata>");
          out.println("<input type=submit></form>");
          out.println("</body></html>");
          out.close();
     public void doPost(HttpServletRequest request,HttpServletResponse response)
          ServletOutputStream out=null;
          DataInputStream in=null;
          FileOutputStream fileOut=null;
          rootPath = "C:\\upload\\tmp\\";          //The directory to save the target file.
          try
               response.setContentType("text/plain");
               out = response.getOutputStream();
          catch (IOException e)
               System.out.println("Error getting output stream.");
               System.out.println("Error description: " + e);
               return;
     try
          String contentType = request.getContentType();
          if(contentType != null && contentType.indexOf("multipart/form-data") != -1)
               in = new DataInputStream(request.getInputStream());
               int formDataLength = request.getContentLength();
               byte dataBytes[] = new byte[formDataLength];
               int bytesRead = 0;
               int totalBytesRead = 0;
               int sizeCheck = 0;
               String sourceFileName = "";
               String targetFileName = "";
               while (totalBytesRead < formDataLength)
                    sizeCheck = totalBytesRead + in.available();
                    if (sizeCheck > MAX_SIZE)
                         out.println("Sorry, file is too large to upload.");
                         return;
                    bytesRead = in.read(dataBytes, totalBytesRead, formDataLength);
                    totalBytesRead += bytesRead;
               String file = new String(dataBytes);
               dataBytes = null;
               int lastIndex = contentType.lastIndexOf("=");
               String boundary = contentType.substring(lastIndex+1, contentType.length());
               //File Content
               //out.println("File content: " + file);
               if (file.indexOf("name=") > 0)
                    int fileNameStart = 0;
                    int fileNameEnd = 0;
                    fileNameStart = file.indexOf("filename=\"");
                    fileNameEnd = file.indexOf("Content-Type:");
                    sourceFileName = file.substring(fileNameStart + 10, fileNameEnd - 3);
                    //Source File
                    out.println("Source file: " + sourceFileName);
               String successPage="";
               if (file.indexOf("name=\"SuccessPage\"") > 0)
                    successPage = file.substring(file.indexOf("name=\"SuccessPage\""));
                    successPage = successPage.substring(successPage.indexOf("\n")+1);
                    successPage = successPage.substring(successPage.indexOf("\n")+1);
                    successPage = successPage.substring(0,successPage.indexOf("\n")-1);}
                    String overWrite;
                    if (file.indexOf("name=\"OverWrite\"") > 0)
                         overWrite = file.substring(file.indexOf("name=\"OverWrite\""));
                         overWrite = overWrite.substring(
                         overWrite.indexOf("\n")+1);
                         overWrite = overWrite.substring(overWrite.indexOf("\n")+1);
                         overWrite = overWrite.substring(0,overWrite.indexOf("\n")-1);
                    else
                         overWrite = "false";
                    String overWritePage="";
                    if (file.indexOf("name=\"OverWritePage\"") > 0)
                         overWritePage = file.substring(file.indexOf("name=\"OverWritePage\""));
                         overWritePage = overWritePage.substring(overWritePage.indexOf("\n")+1);
                         overWritePage = overWritePage.substring(overWritePage.indexOf("\n")+1);
                         overWritePage = overWritePage.substring(0,overWritePage.indexOf("\n")-1);
                    targetFileName = sourceFileName.substring(sourceFileName.lastIndexOf("\\") + 1);
                    targetFileName = rootPath + targetFileName;
                    //Target File:
                    out.println("Target file: " + targetFileName);
                    int pos; //position in upload file
                    pos = file.indexOf("filename=");
                    pos = file.indexOf("\n",pos)+1;
                    pos = file.indexOf("\n",pos)+1;
                    pos = file.indexOf("\n",pos)+1;
                    int boundaryLocation = file.indexOf(boundary,pos)-4;
                    file = file.substring(pos,boundaryLocation);
                    File checkFile = new File(targetFileName);
                    if (checkFile.exists())
                         if (!overWrite.toLowerCase().equals("true"))
                              if (overWritePage.equals(""))
                                   out.println("Sorry, file already exists.");
                              else
                                   //redirect client to OverWrite HTML page
                                   response.sendRedirect(overWritePage);
                              return;
                    File fileDir = new File(rootPath);
                    if (!fileDir.exists())
                         fileDir.mkdirs();
                    fileOut = new FileOutputStream(targetFileName);
                    fileOut.write(file.getBytes(),0,file.length());
                    if (successPage.equals(""))
                         out.println("File written to: " + targetFileName);
                    else
                         response.sendRedirect(successPage);
                    else //request is not multipart/form-data
                         out.println("Request not multipart/form-data.");
               catch(Exception e)
                    try
                         System.out.println("Error in doPost: " + e);
                         out.println("An unexpected error has occurred.");
                         out.println("Error description: " + e);
                    catch (Exception f) {}
               finally
               try
                    fileOut.close(); //close file output stream
               catch (Exception f) {}
               try
                    in.close(); //close input stream from client
               catch (Exception f) {}
               try
                    out.close(); //close output stream to client
               catch (Exception f) {}
}

HTML tag to upload and Download files

hello all
IS there any HtTML tag to upload and download files ???
rgds
ASHWIN

Yea, for downloading you can use a normal link. For uploading, you need an html form like
<form name="form1" enctype="multipart/form-data" method="post" action="doSomething.jsp">
<input type="file" name="file">
</form>To be honest I know nothing about jsp and servlets yet, but I would guess that it works just the same as with php, with which I am alot more familiar. Basicly, the form tag with the input type="file" tag tells the form to submit your file to the webserver.
Then, whatever script you call with action="anythingYouWantHere" will handle the file the user submitted. There must be very similar functions to handle them in java than there is in php.
Things to look for with file upload that often are buggy is the permissions / security settings you have on your webserver. Sometimes you need to make a special folder with extra permissions to allow you upload to work.
Thats about all I know on this matter, good luck :)

Hi, i was recently on an IOS 7 update before it's release and downloaded it from the web and i just got this message saying that my device is not registered as a part of the iphone developer. i have been using this for about 2 months now. what is a fix?

hi, i was recently on an IOS 7 update before it's release and downloaded it from the web and i just got this message saying that my device is not registered as a part of the iphone developer. i have been using this for about 2 months now. what is a fix?

Were you running iOS 7 beta? If so, as a developer you need to log into the Developer forum for assistance.
Not a developer and running iOS 7 beta? <edited by host>

Uploading and downloading files from a web app (Urgent!!)

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