[Asp.net] 비동기 파일 업로드 Ajax File Upload

출처 : http://hellogk.tistory.com/28

출처2(jquery.form.js) : https://github.com/malsup/form/ 

원출처 분께서 설명을 너무 잘 해주신 관계로 

파일 업로드 부분과 소스만 올립니다. 

nwFramework.7z

web.config 추가할 내용

<system.web>

    <!-- 업로드 용량 및 시간 늘리기 -->

    <httpRuntime executionTimeout="3600" maxRequestLength="2097151" />

</system.web>

FileUploadHandler.ashx 내용

<%@ WebHandler Language="C#" Class="FileUploadHandler" %>

 

using System;

using System.Web;

using System.IO;

using System.Text;

using System.Text.RegularExpressions;

 

public class FileUploadHandler : IHttpHandler

{

 

    public void ProcessRequest(HttpContext context)

    {

        string rtn = string.Empty;

        string path = "~/data/";

        string _overWrite = context.Request.Form["OverWrite"] ?? "false";

        bool overWrite = bool.Parse(_overWrite.Trim());

 

        if (context.Request.Files.Count > 0)

        {

            HttpFileCollection files = context.Request.Files;

            for (int i = 0; i < files.Count; i++)

            {

                HttpPostedFile file = files[i];

 

                string serverPath = context.Server.MapPath(path);

                string fname = file.FileName;

 

                if (!overWrite)

                {

                    int index = 1;

                    while (File.Exists(serverPath + fname))

                    {

                        fname = string.Format("{0}[{1}]{2}",

                            Regex.Replace(Path.GetFileNameWithoutExtension(fname), @"\[(\d+)\]", string.Empty),

                            index.ToString(), Path.GetExtension(fname));

                        index++;

                    }

                }

 

                file.SaveAs(serverPath + fname);

                rtn = fname;

            }

            context.Response.ContentType = "text/plain";

            context.Response.Write(rtn);

        }

        else

        {

            context.Response.ContentType = "text/plain";

            context.Response.Write("Error!");

        }

 

    }

 

    public bool IsReusable

    {

        get

        {

            return false;

        }

    }

 

}