Article View: pl.comp.lang.javascript
Article #51513Re: Object formdata
From: Jakub
Date: Wed, 29 Apr 2015 07:52
Date: Wed, 29 Apr 2015 07:52
71 lines
2717 bytes
2717 bytes
znalazłem rozwiązanie
kod html
<div id="aimg">
<img src="plki.jpg" id="plki.jpg">
<img src="pik02.jpg" id="pik02.jpg">
<img src="pik03.jpg id="pik03.jpg"">
<img src="pik04.jpg" id="pik04.jpg">
</div>
<script>
//pobranie w js kolekcji typu img
var aimg = document.getElementById("aimg");
//
var ilosc = aimg.getElementsByTagName("img");
//funkcja która zamienia wartość z html IMG src na blob;
function dataURItoBlob(dataURI){
var byteString = atob(dataURI.split(',')[1]);
var mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];
var ab = new ArrayBuffer(byteString.length);
var ia = new Uint8Array(ab);
for (var i = 0; i < byteString.length; i++){
ia[i] = byteString.charCodeAt(i);
}
var bb = new Blob([ab], { "type": mimeString });
return bb;
}
var files = im;
// tworzy nowy FormData object.
var formData = new FormData();
// petla z kolejnymi wartościami IMG
for (var i = 0; i < files.length; i++) {
var file = files[i];
//zamiana zrodla z img src="" na wartość blob
blob = dataURItoBlob(file.src);
//przypisanie wartoosci blob i nazwy pliku z ID do fourmurza
formData.append("photos[]", blob, file.id);
}
// Set up the request.
var xhr = new XMLHttpRequest();
// Open the connection.
xhr.open('POST', 'jsformdata001fb.html', true);
// Set up a handler for when the request finishes.
xhr.onload = function () {
if (xhr.status === 200) {
// File(s) uploaded.
uploadButton.innerHTML = 'Upload';
s = xhr.responseText
} else {
alert('An error occurred!');
}
};
// Send the Data.
xhr.send(formData);
i po kłopocie
Jakub
Technical Details
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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!agh.edu.pl!news.agh.edu.pl!newsfeed2.atman.pl!newsfeed.atman.pl!goblin1!goblin.stu.neva.ru!newsfeed.neostrada.pl!unt-exc-02.news.neostrada.pl!unt-spo-a-01.news.neostrada.pl!news.neostrada.pl.POSTED!not-for-mail From: "Jakub" <jak74@interia.pl> Newsgroups: pl.comp.lang.javascript References: <553e337c$0$2208$65785112@news.neostrada.pl> In-Reply-To: <553e337c$0$2208$65785112@news.neostrada.pl> Subject: Re: Object formdata Date: Wed, 29 Apr 2015 09:52:08 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Newsreader: Microsoft Windows Live Mail 16.4.3528.331 X-MimeOLE: Produced By Microsoft MimeOLE V16.4.3528.331 Lines: 72 Message-ID: <55408d78$0$8374$65785112@news.neostrada.pl> Organization: Telekomunikacja Polska NNTP-Posting-Host: 31.61.140.75 X-Trace: 1430293880 unt-rea-b-01.news.neostrada.pl 8374 31.61.140.75:26451 X-Complaints-To: abuse@news.neostrada.pl Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit