用Fine Uploader+ASP.NET MVC实现ajax文件上传[代码示例]
喷涂设备厂,鸡西聊天室,终极悬案全集
this project attempts to achieve a user-friendly file-uploading experience over the web. it's built as a javascript plugin for developers looking to incorporate file-uploading into their website.
fine uploader 不依赖于 jquery，也就是说不引用jquery.js，也可以正常使用。同时，它也提供了 jquery wrapper，可以方便地与jquery集成。
这篇博文中的示例代码用的就是 fine uploader jquery wrapper。下面看示例代码：
web前端实现
1. 下载jquery plug-in fine uploader，下载地址：
https://github.com/valums/file-uploader/wiki/releases 移动技术网fine uploader下载地址
2. html代码：
<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>图片上传 - 博客园</title>
<link href="/css/fineuploader.css" rel="stylesheet">
<script src="http://code.jquery.com/jquery-1.8.3.min.js"></script>
<script src="/scripts/jquery.fineuploader-3.0.min.js"></script>
</head>
<body>
<div id="jquery-wrapped-fine-uploader"></div>
<script>
$(function () {
$('#jquery-wrapped-fine-uploader').fineuploader({
request: {
endpoint: '/imageuploader/processupload'
}
});
});
</script>
</body>
</html>
代码说明：
a) <div id="jquery-wrapped-fine-uploader"></div>用于显示上传按钮
b) endpoint 设定的是上传时服务端处理ajax请求的网址。
3. 浏览器中的显示效果
服务器 asp.net mvc 实现代码
fine uploader 的源代码中用 vb.net 实现了一个 controller（uploadcontroller.vb），我们在使用时改为了 c# 代码：
using system;
using system.collections.generic;
using system.io;
using system.linq;
using system.web;
using system.web.mvc;
namespace cnblogs.upload.web.controllers
{
public class imageuploadercontroller : controller
{
const int chunksize = 1024 * 1024;
public actionresult upload()
{
return view();
}
public actionresult processupload(string qqfile)
{
using (var stream = request.inputstream)
{
using (var br = new binaryreader(stream))
{
writestream(br, qqfile);
}
}
return json(new { success = true });
}
private void writestream(binaryreader br, string filename)
{
byte[] filecontents = new byte[] { };
var buffer = new byte[chunksize];
while (br.basestream.position < br.basestream.length - 1)
{
if (br.read(buffer, 0, chunksize) > 0)
{
filecontents = filecontents.concat(buffer).toarray();
}
}
using (var fs = new filestream(@"c:\\temp\\" + datetime.now.tostring("yyyymmddhhmmss") +
path.getextension(filename).tolower(), filemode.create))
{
using (var bw = new binarywriter(fs))
{
bw.write(filecontents);
}
}
}
}
}
服务器端实现改进版
public actionresult processupload(string qqfile)
{
using (var inputstream = request.inputstream)
{
using (var fliestream = new filestream(@"c:\temp\" + qqfile, filemode.create))
{
inputstream.copyto(fliestream);
}
}
return json(new { success = true });
}
图片上传结果演示
如对本文有疑问，请在下面进行留言讨论，广大热心网友会与你互动！！
点击进行留言回复
我要评论
网友评论