使用 jQuery progressBar 做文件上传的进度条指示
简介：这是使用 jQuery progressBar 做文件上传的进度条指示的详细页面，介绍了和php,javascript, PHP 使用 jQuery progressBar 做文件上传的进度条指示有关的知识、技巧、经验，和一些php源码等。
class='pingjiaF' frameborder='0' src='http://biancheng.dnbcw.info/pingjia.php?id=350532' scrolling='no'>var progress_key = '4cd0f29463edb';
// this sets up the progress bar
$(document).ready(function() {
$("#uploadprogressbar").progressBar();
});
// fades in the progress bar and starts polling the upload progress after 1.5seconds
function beginUpload() {
// uses ajax to poll the uploadprogress.php page with the id
// deserializes the json string, and computes the percentage (integer)
// update the jQuery progress bar
// sets a timer for the next poll in 750ms
$("#uploadprogressbar").fadeIn();
var i = setInterval(function() {
$.getJSON("demo.php?id=" + progress_key, function(data) {
if (data == null) {
clearInterval(i);
location.reload(true);
return;
}
var percentage = Math.floor(100 * parseInt(data.bytes_uploaded) / parseInt(data.bytes_total));
$("#uploadprogressbar").progressBar(percentage);
});
}, 1500);
}<?php
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
if (@$_GET['id']) {
echo json_encode(uploadprogress_get_info($_REQUEST['id']));
exit();
}
if (@$_POST['UPLOAD_IDENTIFIER'])
exit();
$uuid = uniqid();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Jquery WITS Form</title>
<link rel="stylesheet" type="text/css" href="http://t.wits.sg/misc/css/reset.css"/>
<link rel="stylesheet" type="text/css" href="http://t.wits.sg/misc/css/base.css"/>
<link rel="stylesheet" type="text/css" href="http://t.wits.sg/misc/css/template.css"/>
<link rel="stylesheet" type="text/css" href="http://t.wits.sg/misc/css/form.css"/>
<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script type="text/javascript">
try {
var pageTracker = _gat._getTracker("UA-1120774-3");
pageTracker._trackPageview();
} catch(err) {}
</script>
<script type="text/javascript" src="http://t.wits.sg/misc/js/jQuery/jquery.js"></script>
<script type="text/javascript" src="http://t.wits.sg/misc/js/jQuery/chili/jquery.chili-2.2.js"></script>
<script type="text/javascript">
ChiliBook.recipeFolder = "../js/jQuery/chili/";
</script>
<script type="text/javascript" src="js/jquery.progressbar.min.js"></script>
<script type="text/javascript">
var progress_key = '<?= $uuid ?>';
$(document).ready(function() {
$("#pb1").progressBar();
$("#pb2").progressBar({ barImage: 'images/progressbg_yellow.gif'} );
$("#pb3").progressBar({ barImage: 'images/progressbg_orange.gif', showText: false} );
$("#pb4").progressBar(65, { showText: false, barImage: 'images/progressbg_red.gif'} );
$(".pb5").progressBar({ max: 2000, textFormat: 'fraction', callback: function(data) { if (data.running_value == data.value) { alert("Callback example: Target reached!"); } }} );
$("#uploadprogressbar").progressBar();
});
function beginUpload() {
$("#uploadprogressbar").fadeIn();
var i = setInterval(function() {
$.getJSON("demo.php?id=" + progress_key, function(data) {
if (data == null) {
clearInterval(i);
location.reload(true);
return;
}
var percentage = Math.floor(100 * parseInt(data.bytes_uploaded) / parseInt(data.bytes_total));
$("#uploadprogressbar").progressBar(percentage);
});
}, 1500);
return true;
}
</script>
<style type="text/css">
table tr { vertical-align: top; }
table td { padding: 3px; }
div.contentblock { padding-bottom: 25px; }
#uploadprogressbar { display: none; }
</style>
</head>
<body>
<div id="container">
<div style="float: right; text-align: right; width: 300px;">download me at <a href="http://t.wits.sg">http://t.wits.sg</a></div>
<div class="contentblock">
<h2>Progress Bars & Controls</h2>
<table>
<tr><td>Default Multicolored Bar</td><td><span class="progressBar" id="pb1">75%</span></td></tr>
<tr><td>Yellow Bar</td><td><span class="progressBar" id="pb2">35%</span></td></tr>
<tr><td>Orange Bar (No Text)</td><td><span class="progressBar" id="pb3">55%</span></td></tr>
<tr><td>Red Bar (No Text)</td><td><span class="progressBar" id="pb4">85%</span></td></tr>
<tr><td>Default Multicolored Bar with max value of 2000</td><td><span class="progressBar pb5">32</span></td></tr>
</table>
<strong>Some controls: </strong>
<a href="#" onclick="$('#pb1').progressBar(20);">20</a> |
<a href="#" onclick="$('#pb1').progressBar(40);">40</a> |
<a href="#" onclick="$('#pb1').progressBar(60);">60</a> |
<a href="#" onclick="$('#pb1').progressBar(80);">80</a> |
<a href="#" onclick="$('#pb1').progressBar(100);">100</a>
</div>
<div class="contentblock">
<h2>Usage: </h2>
<pre class="ln-"><code class="js">
$(document).ready(function() {
$("#pb1").progressBar();
$("#pb2").progressBar({ barImage: 'images/progressbg_yellow.gif'} );
$("#pb3").progressBar({ barImage: 'images/progressbg_orange.gif', showText: false} );
$("#pb4").progressBar(65, { showText: false, barImage: 'images/progressbg_red.gif'} );
$(".pb5").progressBar({ max: 2000, textFormat: 'fraction', callback: function(data) { if (data.running_value == data.value) { alert("Callback example: Target reached!"); } }} );
$("#uploadprogressbar").progressBar();
});
</code></pre>
</div>
<div class="contentblock">
<h2>Progress Bars Form Example</h2>
<a href="demo.txt">Download the PHP Source here</a>
<div class="edit_panel">
<form action="demo.php" target="progressFrame" method="post" id="uploadform" enctype="multipart/form-data" onsubmit="beginUpload();">
<input type="hidden" name="UPLOAD_IDENTIFIER" id="progress_key" value="<?= $uuid ?>" />
<table class="form">
<tr><td class="labelcol"><label for="firstname">First Name</label><em>*</em></td><td class="inpulcol"><input type="text" name="firstname" id="firstname" class="text" /></td></tr>
<tr><td class="labelcol"><label for="lastname">First Name</label><em>*</em></td><td class="inpulcol"><input type="text" name="lastname" id="lastname" class="text" /></td></tr>
<tr><td class="labelcol"><label for="password">First Name</label><em>*</em></td><td class="inpulcol"><input type="password" name="password" id="password" class="text" /></td></tr>
<tr><td class="labelcol"><label for="ulfile1">File 1</label></td>
<td><input type="file" name="ulfile1" id="ulfile1" /></td>
</tr>
<tr><td class="labelcol"><label for="ulfile2">File 2</label></td>
<td><input type="file" name="ulfile2" id="ulfile2" /></td>
</tr>
<tr><td class="labelcol"><label for="ulfile3">File 3</label></td>
<td><input type="file" name="ulfile3" id="ulfile3" /></td>
</tr>
<tr><td class="labelcol"></td>
<td class="inputcol"><input type="submit" value="Submit" />
<br />
<span class="progressbar" id="uploadprogressbar">0%</span>
</td></tr>
</table>
</form>
</div>
</div>
<div class="contentblock">
<h2>Upload Form Javascript: </h2>
<pre class="ln-"><code class="js">
var progress_key = '<?= $uuid ?>';
// this sets up the progress bar
$(document).ready(function() {
$("#uploadprogressbar").progressBar();
});
// fades in the progress bar and starts polling the upload progress after 1.5seconds
function beginUpload() {
// uses ajax to poll the uploadprogress.php page with the id
// deserializes the json string, and computes the percentage (integer)
// update the jQuery progress bar
// sets a timer for the next poll in 750ms
$("#uploadprogressbar").fadeIn();
var i = setInterval(function() {
$.getJSON("demo.php?id=" + progress_key, function(data) {
if (data == null) {
clearInterval(i);
location.reload(true);
return;
}
var percentage = Math.floor(100 * parseInt(data.bytes_uploaded) / parseInt(data.bytes_total));
$("#uploadprogressbar").progressBar(percentage);
});
}, 1500);
}
</code></pre>
</div>
</div>
<!-- Ok, you so need this iframe for Safari and Chrome to work, the webkit engine doesnt allow ajax calls to be made after a form begins submission -->
<iframe style="display: none;" name="progressFrame"></iframe>
</body>
</html>
