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Java Forum / General / November 2006File Download
I am new to JSP and here stuck with a problem.....need help Can anyone tell me how can i provide a download option in JSP for users for a file which can be in any directories....... please help > I am new to JSP and here stuck with a problem.....need help > > Can anyone tell me how can i provide a download option in JSP for users > for a file which can be in any directories....... Just link to the file, as you would in HTTP. There's nothing special or clever you need do.  Signaturesimon@jasmine.org.uk (Simon Brooke) http://www.jasmine.org.uk/~simon/ ;; Sending your money to someone just because they've erected ;; a barrier of obscurity and secrets around the tools you ;; need to use your data does not help the economy or spur ;; innovation. - Waffle Iron Slashdot, June 16th, 2002 >> I am new to JSP and here stuck with a problem.....need help >> [quoted text clipped - 3 lines] > Just link to the file, as you would in HTTP. There's nothing special or > clever you need do. This will only work if the file is in a directory which is being served by the webserver. E.g. if you want to provide download to a file like "C:\myFile.zip", you'll probably instead need to provide a link to a page whose sole task is to read arbitrary files on the file system, and remit their contents, e.g. <a href="./downloader.jsp?link=C:\myFile.zip">Download</a>. But then you'd probably want to implement some security so that people couldn't use that page to download, for example, a list of username and passwords from your server. - Oliver thanks for the solution......but what should I code in downloader.jsp... Thanks oncce again > >> I am new to JSP and here stuck with a problem.....need help > >> [quoted text clipped - 15 lines] > > - Oliver > thanks for the solution......but what should I code in > downloader.jsp... > Thanks oncce again Sorry, I don't know. I'm more of a PHP guy than a JSP guy. - Oliver > thanks for the solution......but what should I code in > downloader.jsp... Java, primarily. As an aside - this is not a 'code generating machine'. If you don't know what to put in the JSP (after getting broad directions from those experienced in server security), you either need ot learn Java or hire a Java programmer. Andrew T. >>> I am new to JSP and here stuck with a problem.....need help >>> [quoted text clipped - 10 lines] > whose sole task is to read arbitrary files on the file system, and remit > their contents, Do NOT - not ever - do that. Your webserver has a lot of security built in precisely to prevent attackers being able to read arbitrary files in your file system. If potential attackers /can/ read arbitrary files in your file system, you just lost control of your server. If you want people to be able to download a file, move that file into the webserver's document root. Do NOT try to work around that. Signaturesimon@jasmine.org.uk (Simon Brooke) http://www.jasmine.org.uk/~simon/ ;; this is not a .sig Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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