how can i achieve the idea for download

[sreelakshmi kolla]

Hi All,

Here i have one download option,when i clicks on that button,so many number files are coming which are in DataBase.so,here my requirement is when i clicks on particular file,it should recognize the format that particular file,and displaying like a pop-up with two buttons open and save.

give me some idea to proceed to this kind of situation!

Thank you,
Regards,
sreelakshmi.

[Tarun Yadav]

Take a look at this: http://forum.java.sun.com/thread.jspa?threadID=5170452&messageID=9655276

[Tarun Yadav]

Basically, you need to write the binary data stream from your DB to the output stream of the response object. If you set the correct content-type and content-disposition headers, compliant browsers should give you the familiar Open/ Save/ Cancel dialog.

Something like this:

while ( rsFetchImage.next() )
{
//Use buffered streams for efficiency
BufferedInputStream imageStream = new BufferedInputStream(rsFetchImage.getBinaryStream("ImageData"));

BufferedOutputStream out = new BufferedOutputStream( resp.getOutputStream());

int i;
while ((i=imageStream.read()) != -1) 
{
out.write(i); //write the image data out to the response stream
}

imageStream.close();
out.flush();
out.close();
}

This doesn't have the headers set but you get the idea...

[Merrill Higginson]

You might also consider extending the Struts DownloadAction to do this.

[sreelakshmi kolla]

thank you very much tarun and merril !