how to read and write MP3 to database

问题

how to read MP3 from Sql database. in sql i have stored the file as binary format. now i want to retrive the Mp3 file stored in the sql and show in my aspx page. how????

pls help...

回答1:

In its simplest form this is how you would get the raw bytes, can't really show any more without knowing what you want it for...

private byte[] GetMp3Bytes(string connString)
{
   SqlConnection conn = null;
   SqlCommand cmd = null;
   SqlDataReader reader = null;

   using (conn = new SqlConnection(connString))
   {
      conn.Open();

      using (cmd = new SqlCommand("SELECT TOP 1 Mp3_File FROM MP3_Table", conn))
      using (reader = cmd.ExecuteReader())
      {
          reader.Read();
          return reader["Mp3_File"] as byte[];
      }
   }
}

回答2:

You'd probably want to use a Generic ASHX Handler that retrieves the binary data and streams it to the response stream with the correct content-type header ("audio/mpeg").

If you look at the article Displaying Images in ASP.NET Using HttpHandlers then you should see the basic principle. You just need to change the content-type output.

来源：https://stackoverflow.com/questions/3458201/how-to-read-and-write-mp3-to-database