????????? ????? ? ???-?????????? ASP.NET.

????????

? ???? ?????? ??????????? ?????? ????????????? ????????? Aspose ??? ?????????? ??????? ? ????????? ??????????? ??? ???-?????????? ASP.NET. ???????????????? ??????: ?????????? ????? ????????? zip-????? ? ????????????? ? ???-??????????, ????? ????????? ?? ??? ???????????? ?????. ? ????? ?????????? ??????????? ????? ???????????? ?? ??? ?? ???-????????.

?????????? ???-?????????? ASP.NET

????????? Visual Studio, ???????? ??????? ???-?????????? ASP.NET Core ? ??????? Razor Pages. ????????? ????????? ??????? NuGet, ???????? ??? ?????? ??? ?????? ???????: Aspose.Zip ??? ?????????? ? Aspose.Imaging ??? ????????? ???????????.
??????? ???????? Index.cshtml ? ???????????? ???????. ?????? ???????? ????? ?? ??? ???????? ? ????????? enctype=“multipart/form-data” ? ????

. ?????????? ???? ???????? ???? ?? ???-??????. ????? ???????? ??? ???? ????? � ???? ???? �????� ??? ???????????? ??????, ?????? ???? �?????� ??? ???????? ???? ????????. ??? ?????? HTML-???????? ?????:

<form method="post" enctype="multipart/form-data">
    <span>Images archive: </span><input type="file" name="uploadedFile" required="required" />
    <br />
    <span>Rotation angle: </span><input type="number" value="30" min="0" max="360" name="rotateDegree" required="required" />
    <br />
    <input type="submit" value="Upload" />
</form>

????? ???? ????????? ????????? ???????? ????????.

????????? ??????? ????????????

????, ???????????? ????????????? zip-????? ? ????????????? ? ?????????? ?????. ??? ?????????? ??? ?????? ?? ??????? ???????? ????????? ?????? ASP.NET, ??? ????? ??????? ??????????????? ????? OnPost ??? ????????? Index.cshtml.cs. ? ?????? ????? ?????? ?? ????????? zip-????? ? ??????? ???????????????? ????????????, ? ????? ???????????? ?????? ???????????. ??? ?????? ??????:

public void OnPost (IFormFile uploadedFile, int RotateDegree) {
    ????????? (???????? ????? = ????? ????? (uploadedFile.OpenReadStream ())) {
        foreach (?????? ArchiveEntry ? archive.Entries) {
		   // ????????? ??????????? ? ???????????? ???.
		}
    }
}

??????? ???????????

?? ?????????? ?????????? Aspose.Imaging ??? ???????? ??????????? ?? ???????????? ???? ?? ???? ??????, ?????? ???? ??????????. ???????? ???? ???????:

    using (MemoryStream rotated = new MemoryStream())
    {
        using (RasterImage image = (RasterImage)Image.Load(extracted))
        {
            // Before rotation, the image should be cached for better performance
            if (!image.IsCached)
                image.CacheData();
                    
            image.Rotate(rotateDegree, true, Color.CornflowerBlue);
            image.Save(rotated);
        }                          
    }

?????? ???????? ? ????????? ???????????

??? ????? ??????? ????? ???????????? ??????????? ? ?????? ???????? ??? ?? ??????????. ???????? ???????? public List<byte[]> ImageBytes {get; ??????? ?????; } ? IndexModel. ????????? ???? ?????? ????????????? ??????? ???????????. ????? ???????? ?? ?? ???-????????, ?? ?????????? URI ??????. ??? ????? ????????????? ????? ??????????? ? ?????? base64. ??? ??? ?????????? Razor ? Index.cshtml

@{
if (Model.ImageBytes != null && Model.ImageBytes.Count > 0) {
        <h4>?????????? ???????????:</h4>
        foreach (??????????? byte[] ? Model.ImageBytes) {
            <img src="data:image;base64,@Convert.ToBase64String(image)" width="150"/>
        }
    }
}

?????????? ??????

????, ???????? ??? ??? ??????. ?????? ?????? ?????? ???? ???????????, ????? ?? ???? ?????? ???? ?????????? ??????????? ?, ???????, ?????????.
? ???? ??????? ?? ?? ????????? ???? ????????????. ? ???????? ??????????? ??? ??????? ????????? ??????????? ????? ? ??? ??????????.
???? ???????? ????????? ????? OnPost.

    public void OnPost(IFormFile uploadedFile, int rotateDegree)
    {
        ImageBytes = new List<byte[]>();

        using (Archive archive = new Archive(uploadedFile.OpenReadStream()))
        {
            foreach (ArchiveEntry entry in archive.Entries)
            {
                if (entry.IsDirectory)
                    continue;

                using (MemoryStream extracted = new MemoryStream())
                {
                    entry.Open().CopyTo(extracted);
                    extracted.Seek(0, SeekOrigin.Begin);
                    using (MemoryStream rotated = new MemoryStream())
                    {
                        using (RasterImage image = (RasterImage)Image.Load(extracted))
                        {
                            if (!image.IsCached)  // Before rotation, the image should be cached for better performance
                                image.CacheData();

                            image.Rotate(rotateDegree, true, Color.CornflowerBlue);
                            image.Save(rotated);
                        }
                        
                        this.ImageBytes.Add(rotated.ToArray());
                    }
                }
            }
        }
    }

????????????? ??? ???-?????????? ASP.NET ????????? ????? ?? ???-?????????? ASP.NET.