jQuery File Upload 图片上传解决方案兼容IE6+
1.下载：https://github.com/blueimp/jQuery-File-Upload
2.命令：
npm install
bower install
======================
3.修改basic.html 如下：
1.cdn 静态引用修改
2.ajax提交路径修改
====&&& 其他demo页面修改同理 =======；
下面修改完了以后。如下所示：
<!DOCTYPE HTML>
<!--
/*
* jQuery File Upload Plugin Basic Demo
* https://github.com/blueimp/jQuery-File-Upload
*
* Copyright 2013, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* https://opensource.org/licenses/MIT
*/
-->
<html lang="en">
<head>
<!-- Force latest IE rendering engine or ChromeFrame if installed -->
<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><![endif]-->
<meta charset="utf-8">
<title>jQuery File Upload Demo - Basic version</title>
<meta name="description" content="File Upload widget with multiple file selection, drag&drop support and progress bar for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (PHP, Python, Ruby on Rails, Java, Node.js, Go etc.) that supports standard HTML form file uploads.">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Bootstrap styles -->
<link rel="stylesheet" href="http://cdn.bootcss.com/bootstrap/3.2.0/css/bootstrap.css">
<!-- Generic page styles -->
<link rel="stylesheet" href="css/style.css">
<!-- CSS to style the file input field as button and adjust the Bootstrap progress bars -->
<link rel="stylesheet" href="css/jquery.fileupload.css">
</head>
<body>
<div class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-fixed-top .navbar-collapse">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="https://github.com/blueimp/jQuery-File-Upload">jQuery File Upload</a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li><a href="https://github.com/blueimp/jQuery-File-Upload/tags">Download</a></li>
<li><a href="https://github.com/blueimp/jQuery-File-Upload">Source Code</a></li>
<li><a href="https://github.com/blueimp/jQuery-File-Upload/wiki">Documentation</a></li>
<li><a href="https://blueimp.net">© Sebastian Tschan</a></li>
</ul>
</div>
</div>
</div>
<div class="container">
<h1>jQuery File Upload Demo</h1>
<h2 class="lead">Basic version</h2>
<ul class="nav nav-tabs">
<li class="active"><a href="basic.html">Basic</a></li>
<li><a href="basic-plus.html">Basic Plus</a></li>
<li><a href="index.html">Basic Plus UI</a></li>
<li><a href="angularjs.html">AngularJS</a></li>
<li><a href="jquery-ui.html">jQuery UI</a></li>
</ul>
<br>
<blockquote>
<p>File Upload widget with multiple file selection, drag&drop support and progress bar for jQuery.<br>
Supports cross-domain, chunked and resumable file uploads.<br>
Works with any server-side platform (PHP, Python, Ruby on Rails, Java, Node.js, Go etc.) that supports standard HTML form file uploads.</p>
</blockquote>
<br>
<!-- The fileinput-button span is used to style the file input field as button -->
<span class="btn btn-success fileinput-button">
<i class="glyphicon glyphicon-plus"></i>
<span>Select files...</span>
<!-- The file input field used as target for the file upload widget -->
<input id="fileupload" type="file" name="files[]" multiple>
</span>
<br>
<br>
<!-- The global progress bar -->
<div id="progress" class="progress">
<div class="progress-bar progress-bar-success"></div>
</div>
<!-- The container for the uploaded files -->
<div id="files" class="files"></div>
<br>
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">Demo Notes</h3>
</div>
<div class="panel-body">
<ul>
<li>The maximum file size for uploads in this demo is <strong>999 KB</strong> (default file size is unlimited).</li>
<li>Only image files (<strong>JPG, GIF, PNG</strong>) are allowed in this demo (by default there is no file type restriction).</li>
<li>Uploaded files will be deleted automatically after <strong>5 minutes or less</strong> (demo files are stored in memory).</li>
<li>You can <strong>drag & drop</strong> files from your desktop on this webpage (see <a href="https://github.com/blueimp/jQuery-File-Upload/wiki/Browser-support">Browser support</a>).</li>
<li>Please refer to the <a href="https://github.com/blueimp/jQuery-File-Upload">project website</a> and <a href="https://github.com/blueimp/jQuery-File-Upload/wiki">documentation</a> for more information.</li>
<li>Built with the <a href="http://getbootstrap.com/">Bootstrap</a> CSS framework and Icons from <a href="http://glyphicons.com/">Glyphicons</a>.</li>
</ul>
</div>
</div>
</div>
<script src="http://cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script>
<!-- The jQuery UI widget factory, can be omitted if jQuery UI is already included -->
<script src="js/vendor/jquery.ui.widget.js"></script>
<!-- The Iframe Transport is required for browsers without support for XHR file uploads -->
<script src="js/jquery.iframe-transport.js"></script>
<!-- The basic File Upload plugin -->
<script src="js/jquery.fileupload.js"></script>
<!-- Bootstrap JS is not required, but included for the responsive demo navigation -->
<script src="http://cdn.bootcss.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script>
/*jslint unparam: true */
/*global window, $ */
$(function () {
'use strict';
// Change this to the location of your server-side upload handler:
var url ='http://localhost:8888/';
$('#fileupload').fileupload({
url: url,
dataType: 'json',
done: function (e, data) {
$.each(data.result.files, function (index, file) {
$('<p/>').text(file.name).appendTo('#files');
});
},
progressall: function (e, data) {
var progress = parseInt(data.loaded / data.total * 100, 10);
$('#progress .progress-bar').css(
'width',
progress + '%'
);
}
}).prop('disabled', !$.support.fileInput)
.parent().addClass($.support.fileInput ? undefined : 'disabled');
});
</script>
</body>
</html>
4.服务跑起来：（需要点服务器知识）
5.完成上传；
其他演示：https://blueimp.github.io/jQuery-File-Upload/jquery-ui.html （官网提供静态展示）
![]({"src": "img/720x200.gif", "width" : 720, "height" : 200})
