今天要介绍的就是sql2005的xml字段类型在.net中的应用。调用过程是：先运用并行化的办法把xml字段类型中的数据转换成Model对象，对Model对象操作后，再运用串行化的方法把Model对象转变成xml格式，最后存储到数据库中。
我认为如果把复杂的业务关系数据存储在xml字段中，可简化数据库的设计，方便业务的处理。 这里写了个小demo：
假如我们有很多店铺信息，每个店铺都有一个ShopID， 所以我们就把同一店铺的信息放在以ShopID命名的文件夹下，当一台服务器放不下时，我们就部署多台，这样每台服务器存储的店铺是不一样的。这些服务器就构成了一个服务器群。出于需要，我们要把这个群复制多个，部署在不同的地区（注意，各个群的信息是相同的）。为了完成这个目的，我们先设计了数据模型 MServerGroup（服务器群信息），MServer（服务器群下的服务器信息），MServerShop（服务器对应的店铺）： /// <summary>
/// 服务器群信息
/// </summary>
/// <remarks>
/// 用于存放点播文件服务器群的信息,比如主站的,北京站的,上海站的;各个站的数据相同.
/// 服务器群的目的是分散数据库的压力.
/// 目前只有主站的.
/// </remarks>
[Serializable()]
public class MServerGroup : BaseModelEntity
{
#region private
private int _ServerGroupID;
private string _ServerGroupName;
private MServerCollection _Servers;
#endregion #region constructor
/// <summary>
/// 服务器群信息
/// </summary>
public MServerGroup()
{
} /// <summary>
/// 服务器群信息
/// </summary>
/// <param name="_ServerGroupID">服务器群ID</param>
/// <param name="_ServerGroupName">服务器群名称</param>
public MServerGroup(int _ServerGroupID, string _ServerGroupName)
{
this._ServerGroupID = _ServerGroupID;
this._ServerGroupName = _ServerGroupName;
}
#endregion #region property
/// <summary>
/// 服务器群ID
/// </summary>
public int ServerGroupID
{
get
{
return _ServerGroupID;
}
set
{
this._ServerGroupID = value;
}
} /// <summary>
/// 服务器群名称
/// </summary>
public string ServerGroupName
{
get
{
return _ServerGroupName;
}
set
{
this._ServerGroupName = value;
}
} /// <summary>
/// 服务器群下的服务器集合
/// </summary>
public MServerCollection Servers
{
get
{
return _Servers;
}
set
{
this._Servers = value;
}
}
#endregion
}
/// <summary>
/// 服务器群下的服务器信息
/// </summary>
/// <remarks>
/// 用于存放点播文件的服务信息
/// </remarks>
[Serializable()]
public class MServer : BaseModelEntity
{
#region private
private int _ServerID;
private string _ServerName;
private string _IP;
private string _DomainName;
private string _Dir;
private string _Url;
private int _ServerGroupID;
private MServerShopCollection _ServerShops;
#endregion
#region constructor
/// <summary>
/// 服务器信息
/// </summary>
public MServer()
{
} /// <summary>
/// 服务器信息
/// </summary>
/// <param name="_ServerID">服务器ID</param>
/// <param name="_ServerName">服务器名称</param>
/// <param name="_IP">服务器IP</param>
/// <param name="_DomainName">服务器域名</param>
/// <param name="_Dir">文件存放目录</param>
/// <param name="_Url">文件存放Url</param>
/// <param name="_ServerGroupID">对应的服务器群ID</param>
/// <param name="_ServerShops">服务器对应的店铺信息</param>
public MServer(int _ServerID, string _ServerName, string _IP, string _DomainName, string _Dir, string _Url, int _ServerGroupID, MServerShopCollection _ServerShops)
{
this._ServerID = _ServerID;
this._ServerName = _ServerName;
this._IP = _IP;
this._DomainName = _DomainName;
this._Dir = _Dir;
this._Url = _Url;
this._ServerGroupID = _ServerGroupID;
this._ServerShops = _ServerShops;
} /// <summary>
/// 服务器信息
/// </summary>
/// <param name="_ServerID">服务器ID</param>
/// <param name="_ServerName">服务器名称</param>
/// <param name="_IP">服务器IP</param>
/// <param name="_DomainName">服务器域名</param>
/// <param name="_Dir">文件存放目录</param>
/// <param name="_Url">文件存放Url</param>
/// <param name="_ServerGroupID">对应的服务器群ID</param>
/// <param name="_xmlStrServerShops">服务器对应的店铺信息的xml字符串</param>
public MServer(int _ServerID, string _ServerName, string _IP, string _DomainName, string _Dir, string _Url, int _ServerGroupID, string _xmlStrServerShops)
{
this._ServerID = _ServerID;
this._ServerName = _ServerName;
this._IP = _IP;
this._DomainName = _DomainName;
this._Dir = _Dir;
this._Url = _Url;
this._ServerGroupID = _ServerGroupID;
this._ServerShops = Common.Utilities.SerializationHelper<MServerShopCollection>.FromXML(_xmlStrServerShops);
}
#endregion #region property
/// <summary>
/// 服务器ID
/// </summary>
public int ServerID
{
get
{
return _ServerID;
}
set
{
this._ServerID = value;
}
} /// <summary>
/// 服务器名称
/// </summary>
public string ServerName
{
get
{
return _ServerName;
}
set
{
this._ServerName = value;
}
} /// <summary>
/// 服务器IP
/// </summary>
public string IP
{
get
{
return _IP;
}
set
{
this._IP = value;
}
} /// <summary>
/// 服务器域名
/// </summary>
public string DomainName
{
get
{
return _DomainName;
}
set
{
this._DomainName = value;
}
} /// <summary>
/// 文件存放目录
/// </summary>
public string Dir
{
get
{
return Dir;
}
set
{
this.Dir = value;
}
} /// <summary>
/// 文件存放Url
/// </summary>
public string Url
{
get
{
return _Url;
}
set
{
this._Url = value;
}
}
/// <summary>
/// 对应的服务器群ID
/// </summary>
public int ServerGroupID
{
get
{
return _ServerGroupID;
}
set
{
this._ServerGroupID = value;
}
}
/// <summary>
/// 服务器对应的店铺信息
/// </summary>
public MServerShopCollection ServerShops
{
get
{
return _ServerShops;
}
set
{
this._ServerShops = value;
}
}
#endregion
}
/// <summary>
/// 服务器对应的店铺
/// </summary>
/// <remarks>
/// 用于存放和服务器对应的店铺
/// </remarks>
[Serializable()]
[XmlRoot(ElementName = "Shop", Namespace = "http://www.linkedu.com.cn/MServerShop.xsd")]
public class MServerShop : BaseModelEntity
{
#region private
private int _ShopID;
private string _ShopName;
#endregion #region constructor
/// <summary>
/// 服务器对应的店铺信息
/// </summary>
public MServerShop()
{
} /// <summary>
/// 服务器对应的店铺信息
/// </summary>
/// <param name="_ShopID">店铺ID</param>
/// <param name="_ShopName">店铺名称</param>
public MServerShop(int _ShopID, string _ShopName)
{
this._ShopID = _ShopID;
this._ShopName = _ShopName;
}
#endregion #region property
/// <summary>
/// 店铺ID
/// </summary>
[XmlAttribute]
public int ShopID
{
get
{
return _ShopID;
}
set
{
this._ShopID = value;
}
} /// <summary>
/// 店铺名称
/// </summary>
[XmlAttribute]
public string ShopName
{
get
{
return _ShopName;
}
set
{
this._ShopName = value;
}
}
#endregion
} 为了对模型的集合信息进行描述，我们有设计了MServerGroupCollection（服务器群信息集合），MServer（服务器群下的服务器信息），MServerShopCollection（服务器对应的店铺集合） /// <summary>
/// 服务器群信息集合
/// </summary>
/// <remarks>
[Serializable()]
[XmlRoot("ServerGroups")]
public class MServerGroupCollection : List<MServerGroup>
{
/// <summary>
/// 服务器群信息集合
/// </summary>
public MServerGroupCollection()
{
this._MServerGroups = new List<MServerGroup>();
} private List<MServerGroup> _MServerGroups; public List<MServerGroup> MServerGroups
{
get
{
return this._MServerGroups;
}
set
{
this._MServerGroups = value;
}
}
} /// <summary>
/// 服务器群下的服务器信息集合
/// </summary>
[XmlRoot("Servers")]
[Serializable()]
public class MServerCollection : List<MServer>
{
/// <summary>
/// 服务器群下的服务器信息集合
/// </summary>
public MServerCollection()
{
this._MServers = new List<MServer>();
} private List<MServer> _MServers; public List<MServer> MServers
{
get
{
return this._MServers;
}
set
{
this._MServers = value;
}
}
} /// <summary>
/// 服务器对应的店铺集合
/// </summary>
[Serializable()]
[XmlRoot(ElementName = "Shops", Namespace = "http://www.linkedu.com.cn/MServerShop.xsd")]
public class MServerShopCollection
{
private List<MServerShop> _MServerShops; [XmlElement("Shop")]
public List<MServerShop> MServerShops
{
get
{
return this._MServerShops;
}
set
{
this._MServerShops = value;
}
}
/// <summary>
/// 服务器对应的店铺集合类
/// </summary>
public MServerShopCollection()
{
this._MServerShops = new List<MServerShop>();
} } 经分析，服务器对应的店铺信息可用xml存储，设计格式如下（用xsd描述，设计好后，我们把它创建到数据库中）
CREATE XML SCHEMA COLLECTION [dbo].[MServerShop] AS
N'<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:t="http://www.linkedu.com.cn/MServerShop.xsd" targetNamespace="http://www.linkedu.com.cn/MServerShop.xsd" elementFormDefault="qualified">
<xsd:element name="Shops">
<xsd:complexType>
<xsd:complexContent>
<xsd:restriction base="xsd:anyType">
<xsd:sequence>
<xsd:element name="Shop" type="t:ServerShop" minOccurs="0" maxOccurs="unbounded" />
</xsd:sequence>
</xsd:restriction>
</xsd:complexContent>
</xsd:complexType>
</xsd:element>
<xsd:complexType name="ServerShop">
<xsd:complexContent>
<xsd:restriction base="xsd:anyType">
<xsd:sequence />
<xsd:attribute name="ShopID" type="xsd:int" use="required" />
<xsd:attribute name="ShopName" type="xsd:string" use="required" />
</xsd:restriction>
</xsd:complexContent>
</xsd:complexType>
</xsd:schema>' 最后，我设计了（服务器群信息 ES_ServerGroup），（服务器群下的服务器信息 ES_Server）的数据表, 在 ES_Server 数据表中，我们把服务器对应的店铺信息放在ES_Server数据表下用xml表示，并加入上边设计的xsd约束。 CREATE TABLE [dbo].[ES_ServerGroup](
[ServerGroupID] [int] NOT NULL,
[ServerGroupName] [nvarchar](20) COLLATE Chinese_PRC_CI_AS NOT NULL,
CONSTRAINT [PK_ES_SERVERGROUP] PRIMARY KEY CLUSTERED
(
[ServerGroupID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY] CREATE TABLE [dbo].[ES_Server](
[ServerID] [int] NOT NULL,
[ServerGroupID] [int] NULL,
[ServerName] [nvarchar](20) COLLATE Chinese_PRC_CI_AS NOT NULL,
[IP] [nvarchar](15) COLLATE Chinese_PRC_CI_AS NULL,
[DomainName] [nvarchar](20) COLLATE Chinese_PRC_CI_AS NULL,
[Dir] [nvarchar](255) COLLATE Chinese_PRC_CI_AS NULL,
[Url] [nvarchar](255) COLLATE Chinese_PRC_CI_AS NULL,
[ServerShops] [xml](CONTENT [dbo].[MServerShop]) NULL,
CONSTRAINT [PK_ES_SERVER] PRIMARY KEY CLUSTERED
(
[ServerID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY] 下一步，我开始设计数据访问接口，然后设计数据访问层和业务层，最后设计表现层。
为了演示方便，Demo中我省去了接口的书写和业务层，我在表现层直接调用了数据访问层 数据访问层代码如下： /// <summary>
/// 服务器群下的服务器信息数据访问层
/// </summary>
public class DServer
{
#region constructor
public DServer()
{
}
#endregion #region public method #region 得到当前 #region 得到某服务器信息 MServer GetMServer(int _ServerID)
/// <summary>
/// 得到某服务器信息
/// </summary>
/// <param name="_ServerID">服务器的ServerID</param>
/// <returns>得到某服务器信息</returns>
public MServer GetMServer(int _ServerID)
{
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
m.AddSql("select * from ES_Server where ");
m.AddSql(" ServerID=");
m.AddSql("ServerID", _ServerID);
using (IDataReader idr = m.ExecuteReader(conn))
{
if (idr.Read())
{
return new MServer(_ServerID, idr["ServerName"].ToString(), idr["IP"].ToString(), idr["DomainName"].ToString(), idr["Dir"].ToString(), idr["Url"].ToString(), (int)idr["ServerGroupID"], idr["ServerShops"].ToString());
}
}
return null;
}
}
#endregion #region 关于MServerShop的操作 #region 得到服务器对应的店铺集合 MServerShopCollection GetMServerShop(int _ServerID)
/// <summary>
/// 得到服务器对应的店铺集合
/// </summary>
/// <param name="_ServerID">服务器的ServerID</param>
/// <returns>得到服务器对应的店铺数组</returns>
public MServerShopCollection GetMServerShop(int _ServerID)
{
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
m.AddSql("select ServerShops from ES_Server where ");
m.AddSql(" ServerID=");
m.AddSql("ServerID", _ServerID);
string xmlstr = m.ExecuteScalar(conn).ToString();
return Common.Utilities.SerializationHelper<MServerShopCollection>.FromXML(xmlstr);
}
}
#endregion #region 保存服务器对应的店铺信息 void SaveMServerShops(int _ServerID, MServerShopCollection _ServerShops)
/// <summary>
/// 保存服务器对应的店铺信息
/// </summary>
/// <param name="_ServerID">服务器的ServerID</param>
/// <param name="_ServerShops">服务器对应的店铺信息集合</param>
public void SaveMServerShops(int _ServerID, MServerShopCollection _ServerShops)
{
string xmlStr = Common.Utilities.SerializationHelper<MServerShopCollection>.ToXML(_ServerShops);
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
m.AddSql("update ES_Server set ServerShops=N'");
m.AddSql(xmlStr);
m.AddSql("' where ServerID=");
m.AddSql(_ServerID.ToString());
m.ExecuteNonQuery(conn);
}
}
#endregion #region 添加服务器对应的店铺信息 void AddMServerShop(int _ServerID, MServerShop _ServerShop)
/// <summary>
/// 添加服务器对应的店铺信息
/// </summary>
/// <param name="_ServerID">服务器的ServerID</param>
/// <param name="_ServerShop">服务器对应的店铺信息</param>
public void AddMServerShop(int _ServerID, MServerShop _ServerShop)
{
//update ES_Server set ServerShops.modify('declare namespace mi="http://www.linkedu.com.cn/MServerShop.xsd"; insert (<mi:Shop ShopID="3" ShopName="hopName3" />) as first into (//mi:Shops)[1]') where ServerID=1
//SELECT ServerID FROM ES_Server WHERE ServerID=1 and ServerShops.exist('declare namespace mi="http://www.linkedu.com.cn/MServerShop.xsd"; //mi:Shops/mi:Shop[@ShopID=4]')=1
//select ServerShops.value('declare namespace mi="http://www.linkedu.com.cn/MServerShop.xsd"; (//mi:Shops/mi:Shop/@ShopID)[1]=4', 'bit') as ShopID from ES_Server where ServerID=1 if @@rowcount > 0 begin select 1 end
string xmlStr = Common.Utilities.SerializationHelper<MServerShop>.ToXML(_ServerShop, "mi");
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
m.AddSql("SELECT ServerID FROM ES_Server WHERE ServerID=" + _ServerID.ToString());
m.AddSql(" and ServerShops.exist('declare namespace mi=/"http://www.linkedu.com.cn/MServerShop.xsd/"; //mi:Shops/mi:Shop[@ShopID=" + _ServerShop.ShopID.ToString() + "]')=1");
m.AddSql(" if @@rowcount = 0 begin ");
m.AddSql("update ES_Server set ServerShops.modify('declare namespace mi=/"http://www.linkedu.com.cn/MServerShop.xsd/"; insert (");
m.AddSql(xmlStr);
m.AddSql(") as first into (//mi:Shops)[1]') where ServerID=" + _ServerID.ToString() + " end");
m.ExecuteNonQuery(conn);
}
}
#endregion #region 删除服务器对应的店铺信息 void DeleteMServerShop(int _ServerID, int _ShopID)
/// <summary>
/// 删除服务器对应的店铺信息
/// </summary>
/// <param name="_ServerID">服务器的ServerID</param>
/// <param name="_ShopID">店铺ID</param>
public void DeleteMServerShop(int _ServerID, int _ShopID)
{
/*
UPDATE ES_Server
SET ServerShops.modify('declare namespace mi="http://www.linkedu.com.cn/MServerShop.xsd";
delete /mi:Shops/mi:Shop[@ShopID=1]') where ServerID=1
*/
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
m.AddSql("UPDATE ES_Server SET ServerShops.modify('declare namespace mi=/"http://www.linkedu.com.cn/MServerShop.xsd/";delete /mi:Shops/mi:Shop[@ShopID=" + _ShopID + "]') where ServerID=" + _ServerID);
m.ExecuteNonQuery(conn);
}
}
#endregion #region 修改服务器对应的店铺信息 void ModifyMServerShop(int _ServerID, MServerShop _ServerShop)
/// <summary>
/// 修改服务器对应的店铺信息
/// </summary>
/// <param name="_ServerID">服务器的ServerID</param>
/// <param name="_ServerShop">服务器对应的店铺信息,其中以_ServerShop的ShopID属性为主键</param>
public void ModifyMServerShop(int _ServerID, MServerShop _ServerShop)
{
//UPDATE ES_Server SET ServerShops.modify('declare namespace mi="http://www.linkedu.com.cn/MServerShop.xsd";replace value of (/mi:Shops/mi:Shop[@ShopID=128780281]/@ShopName)[1] with "ShopNamex"') where ServerID=1
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
m.AddSql("UPDATE ES_Server SET ServerShops.modify('declare namespace mi=/"http://www.linkedu.com.cn/MServerShop.xsd/";replace value of (/mi:Shops/mi:Shop[@ShopID=" + _ServerShop.ShopID + "]/@ShopName)[1] with /"" + _ServerShop.ShopName + "/"') where ServerID=" + _ServerID);
m.ExecuteNonQuery(conn);
}
}
#endregion
#endregion
#endregion #region 增删改
#region 添加服务器信息 int Add(int _ServerID, string _ServerName, string _IP, string _DomainName, string _Dir, string _Url, int _ServerGroupID)
/// <summary>
/// 添加服务器信息
/// </summary>
/// <param name="_ServerID">服务器ID</param>
/// <param name="_ServerName">服务器名称</param>
/// <param name="_IP">服务器IP</param>
/// <param name="_DomainName">服务器域名</param>
/// <param name="_Dir">文件存放目录</param>
/// <param name="_Url">文件存放Url</param>
/// <param name="_ServerGroupID">对应的服务器群ID</param>
/// <param name="_ServerShops">服务器对应的店铺信息</param>
/// <returns>新加服务器是否成功</returns>
public bool Add(int _ServerID, string _ServerName, string _IP, string _DomainName, string _Dir, string _Url, int _ServerGroupID)
{
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
Common.Utilities.ListDic<string, object> ld = new Common.Utilities.ListDic<string, object>();
ld.Add("ServerID", _ServerID);
ld.Add("ServerName", _ServerName);
ld.Add("IP", _IP);
ld.Add("DomainName", _DomainName);
ld.Add("Dir", _Dir);
ld.Add("Url", _Url);
ld.Add("ServerGroupID", _ServerGroupID);
m.Insert(ld, "ES_Server");
return m.ExecuteNonQuery(conn) > 0;
}
}
#endregion #region 修改服务器信息 bool Modify(int _ServerID, string _ServerName, string _IP, string _DomainName, string _Dir, string _Url, int _ServerGroupID)
/// <summary>
/// 修改服务器信息
/// </summary>
/// <param name="_ServerID">服务器ID</param>
/// <param name="_ServerName">服务器名称</param>
/// <param name="_IP">服务器IP</param>
/// <param name="_DomainName">服务器域名</param>
/// <param name="_Dir">文件存放目录</param>
/// <param name="_Url">文件存放Url</param>
/// <param name="_ServerGroupID">对应的服务器群ID</param>
/// <param name="_ServerShops">服务器对应的店铺信息</param>
/// <returns>是否成功</returns>
public bool Modify(int _ServerID, string _ServerName, string _IP, string _DomainName, string _Dir, string _Url, int _ServerGroupID)
{
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
Common.Utilities.ListDic<string, object> ld = new Common.Utilities.ListDic<string, object>();
ld.Add("ServerName", _ServerName);
ld.Add("IP", _IP);
ld.Add("DomainName", _DomainName);
ld.Add("Dir", _Dir);
ld.Add("Url", _Url);
ld.Add("ServerGroupID", _ServerGroupID);
m.Update(ld, "ES_Server");
m.AddSql(" where ServerID=");
m.AddSql("ServerID", _ServerID); return m.ExecuteNonQuery(conn) > 0;
}
}
#endregion #region 删除服务器信息 bool Delete(int _ServerID)
/// <summary>
/// 删除服务器信息
/// </summary>
/// <param name="_ServerID">服务器的ServerID</param>
/// <returns>是否成功</returns>
public bool Delete(int _ServerID)
{
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
m.Delete("ES_Server");
m.AddSql(" where ServerID=");
m.AddSql("ServerID", _ServerID); return m.ExecuteNonQuery(conn) > 0;
}
}
#endregion
#endregion #region 得到其它
#region 得到此服务器所属服务器群信息 MServerGroup GetServerGroup(int _ServerID)
/// <summary>
/// 得到此服务器所属服务器群信息
/// </summary>
/// <param name="_ServerID">服务器ID</param>
/// <returns>得到此服务器所属服务器群信息</returns>
public MServerGroup GetServerGroup(int _ServerID)
{
DataProvider dp = SqlTools.HelpWWW.DataProviderUse;
using (IDbConnection conn = dp.GetConnection())
{
Common.DataAccess.ORMapping.IConvert ic = dp.GetIConvert();
Common.DataAccess.ORMapping.Mapping m = ic.GetNewMapping();
m.AddSql("select * from ES_ServerGroup where ServerGroupID = (select ServerGroupID from ES_Server where ServerID=");
m.AddSql("ServerID", _ServerID);
m.AddSql(")");
using (IDataReader idr = m.ExecuteReader(conn))
{
return Common.Entity.ModelEntityHelp<MServerGroup>.Get_IList(idr)[0];
}
}
}
#endregion
#endregion #endregion #region static
/// <summary>
/// 工厂方法得到DServer对象
/// </summary>
/// <returns>DServer对象</returns>
public static DServer Factory()
{
return Common.Singleton.Provider<DServer>.Instance;
}
#endregion } /// <summary>
/// 服务器群信息数据访问层
/// </summary>
public class DServerGroup
{
#region constructor
public DServerGroup()
{
}
#endregion &
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