如何上传图片 [英] How do I upload an image

问题描述

尝试上传和图片。

Trying to Upload and Image.

if (FileUpload1.HasFile)
            {
                string imagename = System.IO.Path.GetFileName(FileUpload1.FileName);
                string ext = System.IO.Path.GetExtension(FileUpload1.FileName);
                string imagefile = Server.MapPath("Pictures/" + imagename + ext);
                byte[] Image = null;
                if (ext == ".jpg" | ext == ".gif" | ext == ".png")
                {
                    Image = new byte[FileUpload1.PostedFile.ContentLength];
                    HttpPostedFile UploadedImage = FileUpload1.PostedFile;
                    UploadedImage.InputStream.Read(Image, 0, (int)FileUpload1.PostedFile.ContentLength);
                    int numBytesToRead = Image.Length;
                    try
                    {
                        using (FileStream fsNew = new FileStream(imagefile, FileMode.Create, FileAccess.Write))
                        {
                            fsNew.Write(Image, 0, numBytesToRead);
                        }
                    }
                    catch (FileNotFoundException ioEx)
                    {
                        Label100.Text = "Filestream Add Pictures: " + ioEx.ToString();
                    }
                }

我的尝试：



只是将文件名用于图片。无法正常工作

What I have tried:

Tried just using the filename into pictures. Did not work

推荐答案

检查您尝试将文件保存到的目录的权限。

运行网站的帐户默认情况下，它不会对文件系统具有写入权限，如果是这样，您就可以将任何类型的文件上传到网站。



亲切的问候

Check the permissions to the directory you are trying to save the file to.
The account running the web-site will not have write permissions to the file system by default, if it did you would be able to upload any type of file to the website.

Kind Regards

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