在.net中如何写文件上传下载代码

[bjsummer123]

想要在页面中实现文件上传下载功能，哪位大师可以帮帮忙啊

[keketian521]

帮顶下！！！！！！！！！！

[d563382384]

FileUpload 实现文件上传 .save方法保存上传的文件

[bjsummer123]

具体的代码怎么写啊，初学者 不太懂也

[wuyq11]

web fileupload
FileInfo Fi = new FileInfo(filePath);
if (Fi.Exists)
{
FileStream fs = new FileStream(filePath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close();
Response.ContentType = "application/octet-stream";
Response.AddHeader("Content-Disposition", "attachment; filename=1.excel");
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
}
string path = Server.MapPath("~/") + "";
Response.AppendHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(obj.Name, System.Text.Encoding.GetEncoding("utf-8")));
Response.ContentType = "application/octet-stream";
Response.WriteFile("" + path + "");
Response.End();


if (fileUpload.HasFile)
{
string savePath = Server.MapPath("~/upload/");
if(!System.IO.Directory.Exists(savePath))
{
System.IO.Directory.CreateDirectory(savePath);
}
savePath = savePath + "\\" + fileUpload.FileName;
fileUpload.SaveAs(savePath);
}