Created
April 8, 2015 08:45
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非同期ダウンロードのサンプル
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<script> | |
var xhr = new XMLHttpRequest(); | |
$(function () { | |
$('#submitbutton').click(function() { | |
//var xhr = new XMLHttpRequest(); | |
xhr.open('GET', 'http://www.tmpz84.info:3000/large-file.iso', true); | |
xhr.responseType = 'blob'; | |
xhr.onload = function () { | |
if (this.status === 200) { | |
var blob = this.response; | |
// ・・・Blobの処理 | |
} | |
}; | |
// ダウンロードの進捗状況を取得します | |
xhr.onprogress = function (e) { | |
// e.loaded: ダウンロード済みのバイトサイズ | |
// e.total: トータルの倍とサイズ | |
//console.debug('[progress]', e.loaded ,e.total); | |
$("#progress_text").html("[progress] " + e.loaded + " / " + e.total); | |
} | |
xhr.send(); | |
}); | |
$('#cancelbutton').click(function() { | |
xhr.abort(); | |
}); | |
}); | |
</script> | |
<div id="progress_text"> | |
</div> | |
<button type="button" id="submitbutton" > | |
<font size="2">ここを</font><font size="5" color="#333399">押してね</font> | |
</button> | |
<button type="button" id="cancelbutton" > | |
キャンセル | |
</button> |
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