C#连接oracle连接字符串

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
//Method1函数调用的库，需要手动添加引用
using System.Data.OracleClient;
 
namespace OracleTest
{
    class Program
    {
        //从Oracle数据库中读取时间信息
        static void ReadFromOracleTest()
        {
            string conn = string.Concat(
                @"Data Source=",
                @"    (DESCRIPTION=",
                @"        (ADDRESS_LIST=",
                @"            (ADDRESS=",
                @"                (PROTOCOL=TCP)", 
                @"                (HOST=171.0.0.132)",
                @"                (PORT=1521)",
                @"            )",
                @"        )",
                @"        (CONNECT_DATA=",
                @"            (SERVICE_NAME=TESTDB)",
                @"        )",
                @"    );",
                @"Persist Security Info=True;",
                @"User Id=用户名;",
                @"Password=密码"
                );
 
            //OracleConnection 被标注为已过时
            OracleConnection oc = new OracleConnection(conn);
 
            try
            {
                oc.Open();
                //OracleCommand 被标注为已过时
                OracleCommand cmd = oc.CreateCommand();
                cmd.CommandText = "select sysdate from dual";
                OracleDataReader odr = cmd.ExecuteReader();
                while (odr.Read())
                {
                    Console.WriteLine(odr.GetOracleDateTime(0).ToString());
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            finally
            {
                oc.Close();
            }
        }
 
        static void Main(string[] args)
        {
            ReadFromOracleTest();
            Console.ReadLine();
        }
    }
}