try
            {
                string connstr = @"Data Source=Oracle10g.world;Persist Security Info=True;User Id =用户名;Password=密码;";
                //创建Oracle连接对象
                OracleConnection conn = new OracleConnection(connstr);
                if (conn.State == ConnectionState.Closed)
                {
                    conn.Open();
                }
                //创建操作对象
                OracleCommand command = conn.CreateCommand();
                
                DataTable dataTable = new DataTable();

                command.CommandText = string.Format(@"select * from acceptdm");

                OracleDataAdapter oradata = new OracleDataAdapter();
                oradata.SelectCommand = command;
                oradata.Fill(dataTable);

                command.Parameters.Clear();
                conn.Close();
                int count = dataTable.Rows.Count;

                return Ok(dataTable);
            }
            catch (Exception ex)
            {
                return NotFound(ex.Message);
            }