429 lines
16 KiB
C#
429 lines
16 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.IO;
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using System.Data.SqlClient;
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using CYQ.Data.Tool;
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namespace CYQ.Data
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{
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/// <summary>
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/// 数据库对象基础实例
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/// </summary>
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internal partial class ConnBean
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{
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private ConnBean()
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{
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}
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/// <summary>
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/// 对应的ConnectionString的Name
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/// 或者最原始传进来的链接
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/// </summary>
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public string ConnName = string.Empty;
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/// <summary>
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/// 链接的状态是否正常。
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/// </summary>
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public bool IsOK = true;
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/// <summary>
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/// 是否从库
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/// </summary>
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public bool IsSlave = false;
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/// <summary>
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/// 是否备用库
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/// </summary>
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public bool IsBackup = false;
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/// <summary>
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/// 链接错误时的异常消息。
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/// </summary>
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internal string ErrorMsg = string.Empty;
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/// <summary>
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/// 经过格式化后的数据库链接字符串
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/// </summary>
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public string ConnString = string.Empty;
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/// <summary>
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/// 原始的数据库链接字符串
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/// </summary>
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public string ConnStringOrg = string.Empty;
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/// <summary>
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/// 数据库类型
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/// </summary>
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public DataBaseType ConnDataBaseType;
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/// <summary>
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/// 数据库版本信息
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/// </summary>
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public string Version;
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public ConnBean Clone()
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{
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ConnBean cb = new ConnBean();
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cb.ConnName = this.ConnName;
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cb.ConnString = this.ConnString;
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cb.ConnDataBaseType = this.ConnDataBaseType;
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cb.IsOK = this.IsOK;
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return cb;
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}
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public bool TryTestConn()
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{
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//err = string.Empty;
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if (!string.IsNullOrEmpty(ConnName) && AppConfig.GetAppBool("Conn.Result", true))
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{
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DalBase helper = DalCreate.CreateDal(ConnName);
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try
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{
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helper.Con.Open();
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Version = helper.Con.ServerVersion;
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if (string.IsNullOrEmpty(Version))
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{
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Version = helper.DataBaseType.ToString();
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}
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helper.Con.Close();
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IsOK = true;
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ErrorMsg = string.Empty;
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}
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catch (Exception er)
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{
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ErrorMsg = er.Message;
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IsOK = false;
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}
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finally
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{
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helper.Dispose();
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}
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}
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else
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{
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IsOK = false;
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}
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return IsOK;
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}
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public string GetHashKey()
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{
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return StaticTool.GetHashKey(ConnString.Replace(" ", "").ToLower());
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}
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}
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internal partial class ConnBean
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{
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/// <summary>
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/// 所有链接的对象集合
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/// </summary>
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private static MDictionary<int, ConnBean> connBeanDicCache = new MDictionary<int, ConnBean>();
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public static void Clear()
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{
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connBeanDicCache.Clear();
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}
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public static void Remove(string key)
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{
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if (!string.IsNullOrEmpty(key))
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{
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int hash = key.GetHashCode();
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ConnBean cb = connBeanDicCache[hash];
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if (cb != null)
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{
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connBeanDicCache.Remove(hash);
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connBeanDicCache.Remove(cb.ConnName.GetHashCode());
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connBeanDicCache.Remove(cb.ConnString.GetHashCode());
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}
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else
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{
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connBeanDicCache.Remove(hash);
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string connString = string.Format(AppConfig.GetConn(key), AppConfig.WebRootPath);
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connBeanDicCache.Remove(connString.GetHashCode());
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}
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}
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}
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public static string GetHashKey(string conn)
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{
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ConnBean co = Create(conn);
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if (co == null)
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{
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return StaticTool.GetHashKey(conn);
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}
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return co.GetHashKey();
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}
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static readonly object o = new object();
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/// <summary>
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/// 创建一个实例。
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/// </summary>
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/// <returns></returns>
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public static ConnBean Create(string connNameOrString)
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{
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string connString = string.Format(AppConfig.GetConn(connNameOrString), AppConfig.WebRootPath);
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if (string.IsNullOrEmpty(connString))
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{
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return null;
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}
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//检测缓存中有木有
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int hash = connString.GetHashCode();
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if (connBeanDicCache.ContainsKey(hash))
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{
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ConnBean cbCache = connBeanDicCache[hash];
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if (cbCache != null)
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{
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return cbCache;
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}
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}
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ConnBean cb = new ConnBean();
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cb.ConnName = connNameOrString;
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cb.ConnDataBaseType = GetDataBaseType(connString);
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cb.ConnStringOrg = connString;
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cb.ConnString = RemoveConnProvider(cb.ConnDataBaseType, connString);
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lock (o)
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{
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if (!connBeanDicCache.ContainsKey(hash))
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{
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connBeanDicCache.Set(hash, cb);//设置缓存
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}
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int hash2 = cb.ConnString.GetHashCode();
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if (hash != hash2 && !connBeanDicCache.ContainsKey(hash2))
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{
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connBeanDicCache.Set(hash2, cb);//存两份，以connName,connString为key
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}
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}
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return cb;
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}
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/// <summary>
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/// 去掉 链接中的 provider=xxxx;
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/// </summary>
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public static string RemoveConnProvider(DataBaseType dal, string connString)
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{
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switch (dal)
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{
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case DataBaseType.Access:
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case DataBaseType.Excel:
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case DataBaseType.FoxPro:
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return connString;
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}
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connString = RemoveKey(connString, "provider");
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if (dal == DataBaseType.KingBaseES)
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{
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connString = RemoveKey(connString, "schema");
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}
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return connString;
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}
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private static string RemoveKey(string connString, string key)
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{
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string conn = connString.ToLower();
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int len = key.Length;
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int index = conn.IndexOf(key);
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if (index > -1 && index < connString.Length - 5 && (connString[index + len] == '=' || connString[index + len + 1] == '='))
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{
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int end = conn.IndexOf(';', index);
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if (end == -1)
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{
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connString = connString.Remove(index);
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}
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else
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{
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connString = connString.Remove(index, end - index + 1);
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}
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}
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return connString;
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}
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public static DataBaseType GetDataBaseType(string connString)
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{
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connString = connString.ToLower().Replace(" ", "");//去掉空格
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#region provider识别
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if (connString.Contains("provider"))
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{
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if (connString.Contains("provider=ms"))
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{
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return DataBaseType.MsSql;
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}
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if (connString.Contains("provider=ase") || connString.Contains("provider=sb") || connString.Contains("provider=sybase"))
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{
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//data source=127.0.0.1;port=5000;database=cyqdata;uid=sa;pwd=123456
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return DataBaseType.Sybase;
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}
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if (connString.Contains("provider=pg") || connString.Contains("provider=postgre") || connString.Contains("provider=postgresql") || connString.Contains("provider=npgsql"))
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{
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////server=.;port=5432;database=xx;uid=xx;pwd=xx;
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return DataBaseType.PostgreSQL;
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}
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if (connString.Contains("provider=mysql"))
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{
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//host=localhost;port=3306;database=mysql;uid=root;pwd=123456;Convert Zero Datetime=True;
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return DataBaseType.MySql;
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}
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if (connString.Contains("provider=db2") || connString.Contains("Provider=ibmdadb2"))
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{
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//Provider=IBMDADB2.IBMDBCL1;Data Source=dbname;Persist Security Info=True;User ID=username;pwd=123456;Location=ip
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return DataBaseType.DB2;
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}
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if (connString.Contains("provider=oracle") || connString.Contains("provider=msdaora") || connString.Contains("provider=oraoledb.oracle"))
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{
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//Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT = 1521)))(CONNECT_DATA =(Sid = orcl)));User id=sa;password=123456
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return DataBaseType.Oracle;
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}
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if (connString.Contains("provider=firebird"))
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{
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//User=SYSDBA;Password=masterkey;Database=<database file path>;DataSource=<hostname or IP address>;Port=<port number>;Dialect=3;Charset=UTF8;ServerType=0;
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//user id = SYSDBA; password = 123456; database = d:\\test.fdb; server type = Default; data source = 127.0.0.1; port number = 3050
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return DataBaseType.FireBird;
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}
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if (connString.Contains("provider=dm") || connString.Contains("provider=dameng"))
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{
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//user id = SYSDBA; password = 123456789; data source = 127.0.0.1; database = dmhr;
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return DataBaseType.DaMeng;
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}
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if (connString.Contains("provider=kb") || connString.Contains("provider=kingbasees") || connString.Contains("provider=kdbndp"))
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{
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//server=127.0.0.1;User Id=system;Password=123456;Database=test;Port=54321
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return DataBaseType.KingBaseES;
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}
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}
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#endregion
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#region 默认端口识别
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if (connString.Contains("port"))
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{
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if (connString.Contains("=1433"))
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{
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return DataBaseType.MsSql;
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}
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if (connString.Contains("=5000"))
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{
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//data source=127.0.0.1;port=5000;database=cyqdata;uid=sa;pwd=123456
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return DataBaseType.Sybase;
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}
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if (connString.Contains("=5432"))
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{
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////server=.;port=5432;database=xx;uid=xx;pwd=xx;
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return DataBaseType.PostgreSQL;
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}
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if (connString.Contains("=3306"))
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{
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//host=localhost;port=3306;database=mysql;uid=root;pwd=123456;Convert Zero Datetime=True;
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return DataBaseType.MySql;
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}
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if (connString.Contains("=50000"))
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{
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return DataBaseType.DB2;
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}
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if (connString.Contains("=1521"))
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{
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//Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT = 1521)))(CONNECT_DATA =(Sid = orcl)));User id=sa;password=123456
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return DataBaseType.Oracle;
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}
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if (connString.Contains("=3050"))
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{
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//User=SYSDBA;Password=masterkey;Database=<database file path>;DataSource=<hostname or IP address>;Port=<port number>;Dialect=3;Charset=UTF8;ServerType=0;
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//user id = SYSDBA; password = 123456; database = d:\\test.fdb; server type = Default; data source = 127.0.0.1; port number = 3050
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return DataBaseType.FireBird;
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}
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if (connString.Contains("=5236"))
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{
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//user id = SYSDBA; password = 123456789; data source = 127.0.0.1; database = dmhr;
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return DataBaseType.DaMeng;
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}
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if (connString.Contains("=54321"))
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{
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//user id = SYSDBA; password = 123456789; data source = 127.0.0.1; database = dmhr;
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return DataBaseType.KingBaseES;
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}
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}
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#endregion
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#region 文件后缀识别
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if (connString.Contains(".xls") || connString.Contains(".xlsx"))
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{
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//"Provider=Microsoft.ACE.OLEDB.12.0; Data Source=D:\\xxx.xls;Extended Properties='Excel 12.0;HDR=Yes;'";
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return DataBaseType.Excel;
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}
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if (connString.Contains(".mdb") || connString.Contains(".accdb") || connString.Contains(".oledb."))
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{
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//Provider=Microsoft.Jet.OLEDB.4.0; Data Source={0}App_Data/demo.mdb
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//Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0}App_Data/demo.accdb
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return DataBaseType.Access;
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}
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if (connString.Contains("vfpoledb.1") || connString.Contains(".dbf"))
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{
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//"Provider=VFPOLEDB.1;Data Source=F:\\10443.dbf";
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return DataBaseType.FoxPro;
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}
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if (connString.Contains(".db;") || connString.Contains(".db3;") || connString.Contains("failifmissing"))
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{
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//Data Source={0}App_Data/demo.db;failifmissing=false
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return DataBaseType.SQLite;
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}
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if (connString.Contains(".gdb;") || connString.Contains(".fdb;"))
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{
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return DataBaseType.FireBird;
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}
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#endregion
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#region 关键字识别
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if (connString.Contains("txtpath="))
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{
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// txt path={0}
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return DataBaseType.Txt;
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}
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if (connString.Contains("xmlpath="))
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{
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// xml path={0}
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return DataBaseType.Xml;
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}
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if (connString.Contains("description=") || connString.Contains("fororacle"))
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{
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//Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT = 1521)))(CONNECT_DATA =(Sid = orcl)));User id=sa;password=123456
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return DataBaseType.Oracle;
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}
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if (connString.Contains("hostname=") || connString.Contains("ibmdadb2"))
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{
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//Provider=IBMDADB2.IBMDBCL1;Data Source=数据库名;Persist Security Info=True;User ID=用户名;pwd=密码;Location=服务器IP地址
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return DataBaseType.DB2;
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}
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if (connString.Contains("server=") && !connString.Contains("port="))
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{
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//server=.;database=xx;uid=xx;pwd=xx;
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return DataBaseType.MsSql;
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}
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#endregion
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#region dll文件识别
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if (connString.Contains("datasource") && (Exists("Sybase.AdoNet2.AseClient.dll") || Exists("Sybase.AdoNet4.AseClient.dll")))
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{
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return DataBaseType.Sybase;
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}
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if (connString.TrimEnd(';').Split(';').Length == 3 && (Exists("IBM.Data.DB2.dll") || Exists("IBM.Data.DB2.Core.dll")))
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{
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//database=xxx;uid=xxx;pwd=xxx;
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return DataBaseType.DB2;
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}
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if (connString.Contains("host=") && Exists("MySql.Data.dll"))
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{
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return DataBaseType.MySql;
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}
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//postgre和mssql的链接语句一样，为postgre
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if (Exists("Npgsql.dll"))
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{
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return DataBaseType.PostgreSQL;
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}
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if (Exists("DmProvider.dll"))
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{
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return DataBaseType.DaMeng;
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}
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if (Exists("Kdbndp.dll"))
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{
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return DataBaseType.KingBaseES;
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}
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if (Exists("FirebirdSql.Data.FirebirdClient.dll"))
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{
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return DataBaseType.FireBird;
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}
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#endregion
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return DataBaseType.MsSql;
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}
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private static bool Exists(string dll)
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{
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return File.Exists(AppConfig.AssemblyPath + dll);
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}
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}
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}
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