如何用Fine Uploader+ASP.NET MVC实现ajax文件上传2015-01-26Fine Uploader(http://fineuploader.com/)是一个实现 ajax 上传文件的 Javascript 组件。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/Releases2. 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);}}}}}