Vaadin 7 how to download a file

How can I solve this? Same here but a way of downloading resources without a component click event while also avoiding the popup blocker might not be possible. The Browser get's suspicious when websites want to open a new window or a link without the client sending a request. If you use page. I personally would also like a replacement or a de-deprecation of the page. I'm trying to implement Mihas method 3rd post , however I get the following Error in his line 13 when overriding the handleConnectorRequest method:.

You are right! Problem was solved by overriding getStream , Reports are now generated dynamically I also made generation of file dynamically by overriding getFilename method of StreamResource class.

Question: is there a way to know that the download completed successfully? For example our app might need to close a subwindow, or display a notification. I didn't see any FileDownloader listeners, or any methods I could overload by subclassing FileDownloader. I could subclass InputStream and overload the close method, but I suspect that is called before the user is prompted to save the file. However, if as I do you remove an object from a table in the "doWhatYouWant " method, the table does not refresh, presumably because that would be a refresh event inside of a download event.

If anyone knows how to get round that, I'd be grateful. David, Thanks for the reply. I'm trying what you suggest but it seems that super. In addition, result is true even if my stream resource failed to find the requested file. You asked about getting your table to refresh in response.

Have you tried calling container. That lets the table know the next time it goes to repaint that the container data is stale. My assumption being that the table is already repainting, it's just using the cached data. If the browser is not sending a server request when you need it to see the change, then you might need to look into using server push to tell the browser to refresh.

I tried using it but it gave me a blank page without exceptions after adding follow code: addExtension downloader ; Any tips? I have multiple files to download on the same page, so, this code of FileDownloader works for single file, we can download and set it to the fileDownloader, and that can be easily downloaded..

But, if I have multiple files shown in a table, with each row having the file name, version and a download button.

I shouldn't download all of them while coming to that page, this will affect the performance, like if there are more than 20 files, I will be downloading them and showing up the downloader button to the user. So, I need to have a onclick button, which will get the file right at that moment,. Deepali Gudulkar: I have multiple files to download on the same page, so, this code of FileDownloader works for single file, we can download and set it to the fileDownloader, and that can be easily downloaded..

Did you try SimpleFileDownloader component? Not actually, we already have number of addons in the App, so I am trying out with the FileDownloader itself. At least I don't know how to fire click event of button as result of grids item selection. Add a comment. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

Post as a guest Name. Email Required, but never shown. The Overflow Blog. Who owns this outage? Building intelligent escalation chains for modern SRE. Download file vaadin Ask Question. Asked 8 years, 4 months ago. Active 8 years, 4 months ago. Viewed 12k times. Add a comment. Active Oldest Votes. Sergey Makarov Sergey Makarov 2, 2 2 gold badges 17 17 silver badges 23 23 bronze badges. Sign up or log in Sign up using Google.

Sign up using Facebook. How do I make a download button or anchor knowing file location on disk? Have a look at the documentation , paragraph "Using StreamResource". The first parameter is just a file name that will be used by the browser to propose that file name to the user when downloading.

So you could pass it like "important-file. The content of the download is provided by the InputStream parameter. For instance, you could read from your file, see here :. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more.