.net core 操作oracle

oracle.ManagedDataAccess.core（记得勾选包括预发行版）

        public IActionResult Get()
        {
            try
            {
                string connstr = "  DATA SOURCE = 服务器地址; PASSWORD = 密码; PERSIST SECURITY INFO = True; USER ID =用户名";
                OracleConnection conn = new OracleConnection(connstr);
                if (conn.State == ConnectionState.Closed)
                {
                    conn.Open();
                }

                OracleCommand command = conn.CreateCommand();
                command.Connection = conn;

                DataTable dataTable = new DataTable();

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

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

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

                return Ok(count);
            }
            catch (Exception ex)
            {
                Logger.Error("错误日志-----------");
                Logger.Error(ex.Message);
                return NotFound(ex.Message);
            }
            
        }