照片模仿QQ控件上传 C# Javascript 源码控件

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Text;using System.IO;namespace WebUploadTest{ /// <summary> /// Summary description for Handler1 /// </summary> public class Handler1 : IHttpHandler { #region 文件分片 public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; //如果进行了分片 if (context.Request.Form.AllKeys.Any(m => m == "chunk")) { //取得chunk和chunks int chunk = Convert.ToInt32(context.Request.Form["chunk"]);//当前分片在上传分片中的顺序（从0开始） int chunks = Convert.ToInt32(context.Request.Form["chunks"]);//总分片数 //根据GUID创建用该GUID命名的临时文件夹 string folder = context.Server.MapPath("~/1/" context.Request["guid"] "/"); string path = folder chunk; //建立临时传输文件夹 if (!Directory.Exists(Path.GetDirectoryName(folder))) { Directory.CreateDirectory(folder); } FileStream addFile = new FileStream(path, FileMode.Append, FileAccess.Write); BinaryWriter AddWriter = new BinaryWriter(addFile); //获得上传的分片数据流 HttpPostedFile file = context.Request.Files[0]; Stream stream = file.InputStream; BinaryReader TempReader = new BinaryReader(stream); //将上传的分片追加到临时文件末尾 AddWriter.Write(TempReader.ReadBytes((int)stream.Length)); //关闭BinaryReader文件阅读器 TempReader.Close(); stream.Close(); AddWriter.Close(); addFile.Close(); TempReader.Dispose(); stream.Dispose(); AddWriter.Dispose(); addFile.Dispose(); context.Response.Write("{\"chunked\" : true, \"hasError\" : false, \"f_ext\" : \"" Path.GetExtension(file.FileName) "\"}"); } else//没有分片直接保存 { context.Request.Files[0].SaveAs(context.Server.MapPath("~/1/" DateTime.Now.ToFileTime() Path.GetExtension(context.Request.Files[0].FileName))); context.Response.Write("{\"chunked\" : false, \"hasError\" : false}"); } } #endregion public bool IsReusable { get { return false; } } }}