把图片转成2进制存到database中

来源：互联网发布：淘宝裹胸编辑：程序博客网时间：2024/05/16 18:17

protected void btnSave_Click(object sender, EventArgs e)
    {
        // 上传的图片文件到Image
        System.Drawing.Image img = System.Drawing.Image.FromFile(fileImg.PostedFile.FileName);

        // 以Jpeg格式存到内存中
        System.IO.MemoryStream ms =
new System.IO.MemoryStream();
        img.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);

        using (SqlConnection con =
new SqlConnection("Data Source=.//SQLEXPRESS;AttachDbFilename=|DataDirectory|//Database.MDF;Integrated Security=True;User Instance=True"))
        {
            SqlCommand cmd =
new SqlCommand("spInsertImage", con);
            cmd.CommandType = CommandType.StoredProcedure;

            cmd.Parameters.Add("@ImageBinary", System.Data.SqlDbType.Image);
            // 图片的二进制数据
            cmd.Parameters["@ImageBinary"].Value = ms.ToArray();

            con.Open();
            try
            {
                // 调存储过程
                cmd.ExecuteNonQuery();
                Response.Write("ok");
            }
            catch
            {
                Response.Write("error");
            }
        }

        img.Dispose();
        ms.Dispose();
        ms.Flush();
    }