JavaScript: Download file
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JavaScript: Download file
Let's say I have this element on the page:
<input id="image-file" type="file" />
This will create a button that allows the users of the web page to select a file via an OS "File open..." dialog in the browser.
Let's say the user clicks said button, selects a file in the dialog, then clicks the "Ok" button to close the dialog.
The selected file name is now stored in:
document.getElementById("image-file").value
Now, let's say that the server handles multi-part POSTs at the URL "/upload/image".
How do I send the file to "/upload/image"?
Also, how do I listen for notification that the file is finished uploading?
Unless you're trying to upload the file using ajax, just submit the form to /upload/image.
<form enctype="multipart/form-data" action="/upload/image" method="post">
<input id="image-file" type="file" />
</form>
If you do want to upload the image in the background (e.g. without submitting the whole form), you can use ajax:
- Asynchronous file upload (AJAX file upload) using jsp and javascript
- jQuery Ajax File Upload
- Ajax using file upload
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