Asp.net stores images in the database (I)

Recently, in this project, you need to convert the client image to binary and save it to the database.

Convert the image to binary:

(1) Converting through the image path

Private byte [] redyte (string strpath) {// read the file filestream fsmyfile = new filestream (strpath, filemode. openorcreate, fileaccess. readwrite); // create a binary data stream reader and associate it with the opened file binaryreader brmyfile = new binaryreader (fsmyfile); // locate the file pointer to the start of brmyfile. basestream. seek (0, seekorigin. begin); byte [] bytes = brmyfile. readbytes (convert. toint32 (fsmyfile. length. tostring (); // close each of the above new objects brmyfile. close (); Return bytes ;}

(2) Converting through image objects

 private static byte[] Getbyte(Image img)        {            MemoryStream stream = new MemoryStream();            //img.Save(stream,ImageFormat.Jpeg);            byte[] mydata = new byte[stream.Length];            mydata = stream.ToArray();            stream.Close();            return mydata;        }

(3) convert binary data into images

private System.Drawing.Image getImage(byte[] fileData)        {           System.IO.MemoryStream ms = new System.IO.MemoryStream(fileData);           System.Drawing.Image img = System.Drawing.Image.FromStream(ms);             return img;        } 

(4) use image to display

Private void imgshow (workerinfo) {string strpicture = ""; system. drawing. image imgpictureshow = getimage (workerinfo. photo); // define the file name strpicture = "picture" + datetime. now. tostring ("yymmddhhmmss"); imgpictureshow. save (server. mappath ("~ /PIC/") + strpicture +" jpg ", system. drawing. imaging. imageformat. JPEG); // display the file imgpicture. imageurl = "PIC/" + strpicture + ". jpg ";