50 lines
970 B
C#
50 lines
970 B
C#
using System;
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using System.Collections.Generic;
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using System.Configuration;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Epost.DAL
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{
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public class DB_Oracle
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{
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private DataBaseOpration.OprationOraDAL db;
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private string _strOracleMIDConnString = ConfigurationManager.ConnectionStrings["OraMidConnString"].ConnectionString;
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public DB_Oracle()
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{
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}
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/// <summary>
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/// 此方法是本类实例的唯一全局访问点
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/// （双重加锁 Double-Check Locking）
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/// </summary>
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/// <returns></returns>
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public DataBaseOpration.OprationOraDAL GetInstance()
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{
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//如实例不存在，则New一个新实例，否则返回已有实例
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if (db == null)
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{
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db = new DataBaseOpration.OprationOraDAL(_strOracleMIDConnString);
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}
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return db;
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}
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}
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}
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