private int ObterDeApartirDoToken(string chave)
 {
     DbHelper db = new DbHelper();
     db.AddParameter(new System.Data.SqlClient.SqlParameter("@chave", chave));
     string cmdText = "select cd_de from [dbo].[DiretoriaTokenContigencia] where token = @chave";
     int codDe = db.GetExecuteScalar<int>(cmdText);
     db.CloseDbConnection();
     return codDe;
 }