Download a file with its given name | Java Community | Help. Code. Learn. | Page 1

frosty rapids Sep 22, 2024, 6:59 PM

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Normally if you want to download a file through your browser, the browser asks you for the destination path and the name of the file is already given.

Now I want to download a file with that specific filename. How can I do that?

hardy ivyBOT Sep 22, 2024, 6:59 PM

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wicked sandal Sep 22, 2024, 7:19 PM

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What do you mean with downloading a file with a specific filename?

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Do you want to let the user choose the location and name?

frosty rapids Sep 22, 2024, 7:24 PM

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No I want to get the original file name as I would be downloading it from the browser, you know?

reef saddle Sep 22, 2024, 7:31 PM

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Do you ever plan to explain? How could anyone ever guess what it is you're speaking about?

frosty rapids Sep 22, 2024, 7:38 PM

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Did you ever download a file with your browser?
Then you should've seen that the name of the file is always given. But when I download a file with Java I need to use a filename which I want to avoid

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wicked sandal Sep 22, 2024, 7:41 PM

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Are you downloading a file from a Java application using the URL?

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If so, can you show the code? What are you using for downloading the file?

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I think the filename is in an HTTP header

frosty rapids Sep 22, 2024, 7:41 PM

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I still didnt code it yet

wicked sandal Sep 22, 2024, 7:42 PM

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You can get the Content-Disposition response header

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and extract the filename from there

frosty rapids Sep 22, 2024, 7:43 PM

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Okay, I'll look into the headers real quick

wicked sandal Sep 22, 2024, 7:44 PM

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https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Disposition

MDN Web Docs

Content-Disposition - HTTP | MDN

In a regular HTTP response, the Content-Disposition response header is a header indicating if the content is expected to be displayed inline in the browser, that is, as a Web page or as part of a Web page, or as an attachment, that is downloaded and saved locally.

frosty rapids Sep 22, 2024, 7:47 PM

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Is this correct?

HttpURLConnection conn = (HttpURLConnection) new URI("https://tomasgng.dev/plugins/dynamicseasons/download/DynamicSeasons-2.5.0.jar").toURL().openConnection();
conn.connect();

Because I am only getting these headers:

wicked sandal Sep 22, 2024, 7:51 PM

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frosty rapids Is this correct? ```java HttpURLConnection conn = (HttpURLConnection) new URI("h...

Servers don't have to provide the Content-Disposition field

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In this case, the file name is inferred from the URL

frosty rapids Sep 22, 2024, 7:51 PM

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Hm I see, let me try another url

wicked sandal Sep 22, 2024, 7:52 PM

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preferably one where the name in the URL is different from the name you get when downloading it in the browser

frosty rapids Sep 22, 2024, 7:59 PM

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Unfortunately the site where I will be downloading the files from is not creating that header :/

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Still thank you for your help

hardy ivyBOT Sep 22, 2024, 8:03 PM

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frosty rapids Still thank you for your help

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#Download a file with its given name