i have a pdf file in a folder and i want to download it from an xpage.
Normally this is just html like this:
<a href='file://10.1.0.2/folder1/myfile.pdf'>click and download</a>
I tested that it works using this line in a simple html file. In my Xpage I created a computed field (HTML display) and i added the < a > as value. I see the correct link on hover but on click nothing happens. What is the problem?
Thnx
I have recently solved this kind of problem by writing a download "servlet" as a headless XPage. For link add onclick event:
sessionScope.put("filepath", file);
context.redirectToPage("/_download.xsp")
_download page has beforeRenderResponse event facesContext.responseComplete() and in afterRenderResponse call a java code that reads the file and writes to the output stream. Something like this:
if (sessionScope.containsKey("filepath")){
FileDownload.sendFile(sessionScope.filepath);
}
java class:
public class FileDownload {
public static void sendFile(String filepath) {
File file = new File(filepath);
if (file.exists()) {
ExternalContext ec = FacesContext.getCurrentInstance().getExternalContext();
HttpServletResponse response = (HttpServletResponse) ec.getResponse();
response.setContentType(MIME(filepath)); // figure out the type from extension or else
OutputStream out;
try {
// for the download dialog
response.setHeader("Content-disposition",
"attachment; filename*=utf-8''" + java.net.URLEncoder.encode(file.getName(), "UTF-8").replace("+", "%20"));
out = response.getOutputStream();
FileInputStream in = new FileInputStream(file);
byte[] buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) > 0) {
out.write(buffer, 0, length);
}
in.close();
out.flush();
} catch (IOException e) {
}
}
}
}
Unfortunately for very large files (1Gb or so) it becomes slow, also takes memory about twice the size of the file, but I'm not sure what could I optimize here. I've tried to call out.flush() within the loop, but it has no effect.
The file system is not generally exposed in Domino. The HTML root is domino data/domino/html your file needs to be in a folder below. Folder names can't contain .nsf in the name. You can configure the folder in the internet sites.
Seams like you mix thing up
10.1.0.2 is an ipadress and that will refer to a webserver then you should add http: infront of the url instead of file:
If you want to access a local file on your computer write file://c:\path\file.ext
But there is some restrictions in the browsers to access files on server shares.
Check this Link http://kb.mozillazine.org/Links_to_local_pages_do_not_work
