如何将图片存进SQL数据库中以及从数据库读取照片（解决办法）

/// <summary>
/// 将图片存进数据库
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
      //点击按钮弹出对话框
      //选中图片，为Img的属性
      OpenFileDialog ofd = new OpenFileDialog();  //打开文件
      ofd.Title = "请选择图片文件";//弹出框的标题
      ofd.InitialDirectory = System.Environment.GetFolderPath(Environment.SpecialFolder.MyPictures);//设置系统目录
      // ofd.InitialDirectory = @"C:\Users\Administrator\Pictures";//设置系统目录
      ofd.Filter = "(*.jpg)|*.jpg";
      if (ofd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
      {
          this.pictureBox1.Image = Image.FromStream(ofd.OpenFile());  //获取当前选择的图片
          string path = ofd.FileName.ToString(); //获取当前图片的路径
          FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read); //将指定路径的图片添加到FileStream类中
          BinaryReader br = new BinaryReader(fs);//通过FileStream对象实例化BinaryReader对象
          byte[] imgBytesIn = br.ReadBytes(Convert.ToInt32(fs.Length));//将图片转为二进制数据
          Save(imgBytesIn);//调用（自己写的一个方法）
       }
}

/// <summary>
/// 存进数据库
/// </summary>
/// <param name="imgBytesIn">二进制数据</param>
private void Save(byte[] imgBytesIn)
{
     try
    {   //连接数据库
         SqlConnection con = new SqlConnection("server=192.168.111.100;uid=sa;pwd=123456;database=Chargetest");//连接本地数据库
          con.Open();
          SqlCommand cmd = new SqlCommand("insert into image (Img_url) values(@Image);", con); //SQL语句
          cmd.Parameters.Add("@Image", SqlDbType.Image);
          cmd.Parameters["@Image"].Value = imgBytesIn;
          cmd.ExecuteNonQuery();
          con.Close();
          MessageBox.Show("图片上传成功");
    }
    catch
    {
         MessageBox.Show("您选择的图片不能被读取或文件类型不对！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Warning);
         }
   }

/// <summary>
/// 从数据库读取图片
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
       byte[] MyData = new byte[0];
       using (SqlConnection conn = new SqlConnection("server=ZYB;Database =Chargetest; User ID = sa;Password =123456"))
      {
           conn.Open();
           SqlCommand cmd = new SqlCommand();
           cmd.Connection = conn;
           cmd.CommandText = "select * from image where Id=14"; //写自己要查图片的主键
           SqlDataReader sdr = cmd.ExecuteReader();
           sdr.Read();
           object o = sdr["img_url"];
           MyData = (byte[])sdr["img_url"];//读取第一个图片的位流
           MemoryStream memoryStream = null;
           memoryStream = new MemoryStream(MyData);
           pictureBox1.Image = Image.FromStream(memoryStream);//将图片赋给pictureBox1控件
           MessageBox.Show("读取成功");
       }
}