高手快来啊

Question

private static OracleConnection OracleConnection = null;
        private static object _OracleLock = new object();
        /// <summary>
        /// 连接数据源
        /// </summary>
        /// <returns></returns>
        public OracleConnection GetOracleConnection(string connString)
        {
            if (OracleConnection == null  || OracleConnection.State == ConnectionState.Open)
            {
                lock (_OracleLock)
                {
                    if (OracleConnection == null || OracleConnection.State == ConnectionState.Open)
                    {                        OracleConnection = new OracleConnection(connString);
                        System.IO.StreamWriter LogWriterbefew = System.IO.File.AppendText(@"D:\asxt\InceptService\Logfile.txt");
                        LogWriterbefew.Write("开始进入异常");
                        LogWriterbefew.Close();                       
                        try
                        {
                            OracleConnection.Open();
                        }
                        catch (Exception ex)
                        {
                            System.IO.StreamWriter LogWriterbefewe = System.IO.File.AppendText(@"D:\asxt\InceptService\Logfile.txt");
                            LogWriterbefewe.Write("进入异常");
                            LogWriterbefewe.Close();                            System.IO.StreamWriter LogWritera = System.IO.File.AppendText(@"D:\asxt\InceptService\Logfile.txt");
                            LogWritera.Write(ex.ToString());
                            LogWritera.Close();
                        }
                        System.IO.StreamWriter LogWriterbfefew = System.IO.File.AppendText(@"D:\asxt\InceptService\Logfile.txt");
                        LogWriterbfefew.Write("异常二");
                        LogWriterbfefew.Close();
                    }
                    else
                        return OracleConnection;
                }
            }
            return OracleConnection;
        }以上是我连接oralce数据库的,服务意外停止,因为是在服务器上没有装测试环境,在日志里只输出了开始进入异常,就没有其它任何返应了,而且服务就停止了,有人遇到过这样的问题吗?