[代码示例]用Fine Uploader+ASP.NET MVC实现ajax文件上传
原文 [代碼示例]用Fine Uploader+ASP.NET MVC實現ajax文件上傳
Fine Uploader(http://fineuploader.com/)是一個實現 ajax 上傳文件的 Javascript 組件。
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 不依賴于 jQuery,也就是說不引用jquery.js,也可以正常使用。同時,它也提供了 jQuery Wrapper,可以方便地與jQuery集成。
這篇博文中的示例代碼用的就是?Fine Uploader?jQuery Wrapper。下面看示例代碼:
Web前端實現
1. 下載jQuery Plug-in Fine Uploader,下載地址:https://github.com/valums/file-uploader/wiki/Releases
2. html代碼:
<!DOCTYPE html> <html> <head><meta charset="utf-8" /><title>圖片上傳 - 博客園</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>代碼說明:
a)?<div id="jquery-wrapped-fine-uploader"></div>用于顯示上傳按鈕
b) endpoint 設定的是上傳時服務端處理ajax請求的網址。
3. 瀏覽器中的顯示效果
服務器 ASP.NET MVC 實現代碼
Fine Uploader 的源代碼中用 VB.NET 實現了一個 Controller(UploadController.vb),我們在使用時改為了 C# 代碼:
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);}}}} }服務器端實現改進版
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 }); }相關博文:上傳文件就這么簡單:Request.InputStream to FileStream
圖片上傳結果演示
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posted on 2014-01-13 00:40 NET未來之路 閱讀(...) 評論(...) 編輯 收藏轉載于:https://www.cnblogs.com/lonelyxmas/p/3516781.html
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