如何存图片到数据库中

将图片以二进制形式存入数据库时,首先要在数据库中建立一张表,将存储图片的字段类型设为Image类型,用FileStream类、BinaryReader把图片读成字节的形式,赋给一个字节数组,然后用ADO.SqlCommand对象的ExecuteNonQuery()方法来把数据保存到数据库中。主要代码如下：

   

 private void button1_Clickobject sender, EventArgs e)

        {

          openFileDialog1.Filter = "*jpg|*.JPG|*.GIF|*.GIF|*.BMP|*.BMP";

            if(openFileDialog1.ShowDialog()==DialogResult.OK)

            {

　　　　          string fullpath =openFileDialog1.FileName;//文件路径

          　      FileStream fs = new FileStream(fullpath, FileMode.Open);

                byte[] imagebytes =new byte[fs.Length];

                BinaryReader br = new BinaryReader(fs);

                imagebytes = br.ReadBytes(Convert.ToInt32(fs.Length));

                //数据库连接
                   SqlConnection  con = new SqlConnection("server=(local);uid=sa;pwd=;database=db_05");

                con.Open();

                SqlCommand com = new SqlCommand("insert into tb_08 values(@ImageList)",con);

                com.Parameters.Add("ImageList", SqlDbType.Image);

                com.Parameters["ImageList"].Value = imagebytes;

               com.ExecuteNonQuery();

               con.Close();

        }    

}