Blueimp File Upload: add image from URL

问题

I am using jQuery File Upload plugin (http://blueimp.github.io/jQuery-File-Upload/) for image upload for my website.

I want to add image from URL, when user add in textbox.

回答1:

You have to find a way to download the image from the URL, convert the img into any Type supported by the blob constructor, build a blob file, and call the jQuery File Upload add method like $('#fileupload').fileupload('add', {files: blob})', all grammatically with javascript.

Check this out: https://developer.mozilla.org/en-US/docs/Web/API/Blob/Blob and this http://qnimate.com/javascript-create-file-object-from-url/

If you manage to implement it, please post here.

回答2:

Try something like this

var blob = null;
var xhr = new XMLHttpRequest();
xhr.open('GET', 'https://path/to/image');
xhr.responseType = 'blob';
xhr.onload = function()
{
   blob = xhr.response;
   $('#mediafile-file-fileupload').fileupload('add', {files: [blob]})
}
xhr.send();

来源：https://stackoverflow.com/questions/34155510/blueimp-file-upload-add-image-from-url