这里就不再介绍什么是SWFUpload啦，简单为大家写一个简单关于SWFUpload的Demo。
1.把SWFUpload 相关的文件引用进来
2.创建upload.aspx页面（页面名称可自定义），
-前台页面代码如下：
<!DOCTYPE html> <html>
<head id="Head1" runat="server">
<title>SWFUpload Application Demo (ASP.Net 2.0)</title>
<link href="../assets/lib/ckeditor/plugins/codesnippet/lib/highlight/styles/default.css" rel="stylesheet" />
<script src="../assets/lib/swfupload/swfupload.js"></script>
<script src="../assets/lib/swfupload/handlers.js"></script>
<script type="text/javascript">
var swfu;
window.onload = function () {
swfu = new SWFUpload({
// Backend Settings
//上传请求处理地址
upload_url: "upload.aspx",
//POST提交同时伴随上传的键值对
post_params: {
<%--"ASPSESSID": "<%=Session.SessionID %>"--%>
}, // File Upload Settings
//最大文件限制
file_size_limit: "2 MB",
//上传的文件类型
file_types: "*.jpg",
//点击弹出浏览窗口的文件默认类型
file_types_description: "JPG Images",
file_upload_limit: , // Zero means unlimited // Event Handler Settings - these functions as defined in Handlers.js
// The handlers are not part of SWFUpload but are part of my website and control how
// my website reacts to the SWFUpload events.
swfupload_preload_handler: preLoad,
swfupload_load_failed_handler: loadFailed,
file_queue_error_handler: fileQueueError,
file_dialog_complete_handler: fileDialogComplete,
upload_progress_handler: uploadProgress,
upload_error_handler: uploadError,
upload_success_handler: function (file, serverData) {document.getElementById("img").src=serverData},
upload_complete_handler: uploadComplete, // Button settings
button_image_url: "../assets/lib/swfupload/images/XPButtonNoText_160x22.png",
button_placeholder_id: "spanButtonPlaceholder",
button_width: ,
button_height: ,
button_text: '<span class="button">选择图片 <span class="buttonSmall">(2 MB Max)</span></span>',
button_text_style: '.button { font-family: Helvetica, Arial, sans-serif; font-size: 14pt; } .buttonSmall { font-size: 10pt; }',
button_text_top_padding: ,
button_text_left_padding: , // Flash Settings
flash_url: "../assets/lib/swfupload/swfupload.swf", // Relative to this file
flash9_url: "../assets/lib/swfupload/swfupload_FP9.swf", // Relative to this file custom_settings: {
upload_target: "divFileProgressContainer"
}, // Debug Settings
debug: false
});
}
</script>
</head>
<body>
<form id="form1" runat="server"> <div id="content"> <div id="swfu_container" style="margin: 0px 10px;">
<div>
<span id="spanButtonPlaceholder"></span>
</div>
<div id="divFileProgressContainer" style="height: 75px;"></div>
<div id="thumbnails">
<img id="img" src="#" alt="" />
</div>
</div>
</div>
</form>
</body>
</html>
-后台页面代码如下：
public partial class upload : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (Request.IsPostBack())
{
//
foreach (string key in Request.Files)
{
Request.Files[key].SaveAs(Server.MapPath("~/uploads/" + Request.Files[key].FileName));
Response.Write("/uploads/" + Request.Files[key].FileName);
} Response.End();
}
}
}
注：里面的一些使用方式已经为大家附上注释，自己可以简单看下。