主要思想，读取文件byte流，写入数据库，读取的关键代码如下：

<asp:Button ID="ButtonShowVideo" runat="server" onclick="ButtonShowVideo_Click" 
        Text="Show Video" />
    <asp:Repeater ID="Repeater1" runat="server">
        
            <object id="player" classid="clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6" 
                        height="170" width="300">

public class VideoHandler : IHttpHandler 
{
    
    public void ProcessRequest (HttpContext context) 
    {
        string connectionString = ConfigurationManager.ConnectionStrings["uploadConnectionString"].ConnectionString;

        SqlConnection connection = new SqlConnection(connectionString);
        SqlCommand cmd = new SqlCommand("SELECT Video, Video_Name FROM Videos WHERE ID = @id", connection);
        cmd.Parameters.Add("@id", SqlDbType.Int).Value = context.Request.QueryString["id"];
        try
        {
            connection.Open();
            SqlDataReader reader = cmd.ExecuteReader(CommandBehavior.Default);
            if (reader.HasRows)
            {
                while (reader.Read())
                {
                    context.Response.ContentType = reader["Video_Name"].ToString();
                    context.Response.BinaryWrite((byte[])reader["Video"]);
                }
            }
        }
        finally
        {
            connection.Close();
        }
    }
 
    public bool IsReusable 
    {
        get {
            return false;
        }
    }

}