1  /// <summary> 2     /// 得到照片 3     /// </summary> 4     /// <param name="id">根据id得到对应的字节流的值</param> 5     public void GetPhoto(string id) 6     { 7         //定义一个字节（数组）变量 8         byte[] imageby = null; 9         //获取字节流数据10         DataTable table = Info_LockRecordBLL.GetInfo(id);11         imageby = (byte[])table.Rows[0]["ZhaoPian"];12 13         GetImageByBytes(imageby);14 15         //页面输出16         //这点很重要的，因为字节流的数据得到只是一个画布，没有格式，这里必须给一个格式17         Response.ContentType = "image/jpeg";18         //页面输出19         Response.BinaryWrite(imageby);20     }21     //将字节流绘制为一个图片22     public static System.Drawing.Image GetImageByBytes(byte[] bytes)23     {24         System.Drawing.Image photo = null;25         if (bytes != null && bytes.Length != 0)26         {27             //字节流处理28             MemoryStream ms = new MemoryStream(bytes);29             photo = System.Drawing.Image.FromStream(ms);30             //释放内存31             ms.Dispose();32         }33         return photo;34     }