.net base64 into the picture

1, base64 format is:

data:image/jpeg;base64,sandkansncquiueui3jk

2, ajax + will transfer into space

 

3, background processing code:

 String imgpath = the Server.MapPath ( " ~ / the Img / " );
             String newfilename = String .Format ( " {0: the MM-YYYY-mm-dd-HH-SS-FFFF} .jpeg " , the DateTime.Now);
             / / format is base64 Data: Image / JPEG; base64, sandkansncquiueui3jk 
            String [] = imgStr ImageBase64.Split ( ' , ' );
             // Ajax in the transmission will be changed to + space 
            byte [] = imageBytes Convert.FromBase64String ( imgStr [ . 1 ] .Replace ( "  " , " + " ));
             //将base64转为图片
            using (MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length))
            {
                if (!Directory.Exists(imgPath))
                {
                    Directory.CreateDirectory(imgPath);
                }
                //1方式
                System.Drawing.Bitmap bpmTemp = new System.Drawing.Bitmap(ms);
                bpmTemp.Save(Path.Combine(imgPath, newFileName));
                //2方式
                //Image image = Image.FromStream(ms);
                //image.Save(Path.Combine(imgPath, newFileName));

            }

 

Reference: https: //www.cnblogs.com/dh-hui/p/5387622.html