upload.aspx.cs

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using System;
using System.Collections.Generic;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class upload : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Request.Files.Count > 0)
        {
            HttpPostedFile file = Request.Files[0];
            string path = "/file/";
            string serverPath = Server.MapPath(path);

            string fileName = Path.GetFileName(file.FileName);
            int i = fileName.LastIndexOf("."); //取得文件名中最后一个"."的索引    
            string newext = fileName.Substring(i).ToLower(); //获取文件扩展名 

            if (newext == ".aspx" || newext == ".asp" || newext == ".php" || newext == ".jsp" || newext == ".cgi" || newext == ".asa" || newext == ".ashx")
            {
                Response.Write("文件格式不正确!");
                Response.End();
            }

            DateTime now = DateTime.Now; //获取系统时间
            Random rd = new Random();

            string nyr = "/file/" + get.nyrsfm();
            //System.IO.Directory.CreateDirectory(Server.MapPath(nyr));//这里是不改变文件名
            //string photoName2 = nyr + "/" + fileName;// +"" + fileName;//这里是不改变文件名
            string photoName2 = nyr + newext;
            fileName = photoName2;

            if (!System.IO.Directory.Exists(serverPath))
            {
                System.IO.Directory.CreateDirectory(serverPath);
            }

            string sqlstring = "insert into filedata (filename,fileurl,times) values('','" + fileName + "','" + DateTime.Now.ToString().ToString() + "')";
            new AcsHelper().ExecuteNonQuery(sqlstring);

            file.SaveAs(Server.MapPath(fileName));
            SendFileUploadResponse(0, fileName, fileName, "上传成功！");
        }
        else
        {
            SendFileUploadResponse(1, "", "", "上传失败！");
        }
    }

    public void SendFileUploadResponse(int isSucceed, string fileUrl, string fileName, string customMsg)
    {
        System.Web.HttpContext.Current.Response.Clear();
        System.Web.HttpContext.Current.Response.Write("<script type='text/javascript'>");
        Response.Write(@"(function(){var d=document.domain;while (true){try{var A=window.top.opener.document.domain;break;}catch(e) {};d=d.replace(/.*?(?:\.|$)/,'');if (d.length==0) break;}})();");
        System.Web.HttpContext.Current.Response.Write("window.parent.OnUploadCompleted(" + isSucceed.ToString().ToLower() + ", '" + fileUrl + "', '" + fileName + "', '" + customMsg + "');");
        System.Web.HttpContext.Current.Response.Write("</script>");