带有进度条AJAX的多文件上传
[英]Multiple file upload with progress bar AJAX
问题描述
嗨，开发人员，我正在使用上传文件设计页面
我正在尝试更改下面的代码以上传多个文件。
每个都有一个单独的进度条，如下所示。
请帮忙。
提前致谢
该页面喜欢
这是代码
<!DOCTYPE html>
<html>
<head>
<script>
function _(el){
return document.getElementById(el);
}
function uploadFile(){
var file = _("file1").files[0];
// alert(file.name+" | "+file.size+" | "+file.type);
var formdata = new FormData();
formdata.append("file1", file);
var ajax = new XMLHttpRequest();
ajax.upload.addEventListener("progress", progressHandler, false);
ajax.addEventListener("load", completeHandler, false);
ajax.addEventListener("error", errorHandler, false);
ajax.addEventListener("abort", abortHandler, false);
ajax.open("POST", "file_upload_parser.php");
ajax.send(formdata);
}
function progressHandler(event){
_("loaded_n_total").innerHTML = "Uploaded "+event.loaded+" bytes of "+event.total;
var percent = (event.loaded / event.total) * 100;
_("progressBar").value = Math.round(percent);
_("status").innerHTML = Math.round(percent)+"% uploaded... please wait";
}
function completeHandler(event){
_("status").innerHTML = event.target.responseText;
_("progressBar").value = 0;
}
function errorHandler(event){
_("status").innerHTML = "Upload Failed";
}
function abortHandler(event){
_("status").innerHTML = "Upload Aborted";
}
</script>
</head>
<body>
<form>
<h2>HTML5 File Upload Progress Bar Tutorial</h2>
<input type="file" name="file1" id="file1"><br> <input type="button" value="Upload File" onclick="uploadFile()">
<progress id="progressBar" value="0" max="100" style="width:300px;"></progress>
<h3 id="status"></h3>
<p id="loaded_n_total"> </p>
</form>
</body>
</html>
2 个解决方案
解决方案1
2 已采纳 2015-07-28 08:30:21
function uploadFile(event){ var file=event.target.files[0]; //the same code as you wrote }
解决方案2
0 2015-07-30 10:03:24
即使使用该行代码，它也仅侦听一次上传的进度。
function uploadFile(event){ var file=event.target.files[0]; //the same code as you wrote }
带有进度条的多文件上传
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