asp.net(C#) Access 数据操作类

using System; 
using System.Configuration; 
using System.Data; 
using System.Data.OleDb; 
using System.Xml; 
using System.Collections; 
namespace Website.Command 
{ 
/// <summary> 
/// WSplus 的摘要说明。 
/// </summary> 
public class AccessClass : System.Web.UI.Page 
{ 
private static OleDbConnection sconn = null; 
public static string _returnValue = "0"; 
public WSplus() 
{ 
// 
// TODO: 在此处添加构造函数逻辑 
// 
sconn = new OleDbConnection("Provider="Microsoft.Jet.OLEDB.4.0;Data" Source=" + Server.MapPath("/..db.mdb") + ";"); 
} 
/// <summary> 
///开启数据 
/// </summary> 
private static void connOpen() 
{ 
if (sconn.State="=ConnectionState.Closed)" 
try 
{ 
sconn.Open(); 
} 
catch (Exception ex) 
{ 
throw new Exception("数据库初始化错误!!!"+ex.Message); 
} 
} 
/// <summary> 
/// 关闭数据库 
/// </summary> 
public void connClose() 
{ 
if (sconn.State ="=" ConnectionState.Open) 
try 
{ 
sconn.Close(); 
} 
catch (Exception ex) 
{ 
throw new Exception("OleDb Close Error!"+ex.Message); 
} 
} 
/// <summary> 
/// 存储过程型CMD初始化! 
/// </summary> 
/// <param name="ht"></param> 
/// <param name="sCmd"></param> 
/// <param name="proc"></param> 
private static void ConfigCMD(Hashtable ht,OleDbCommand sCmd,string sqls) 
{ 
if (sCmd ="=" null) throw new ArgumentException("sCmd未初始化"); 
if (ht != null && ht.Count != 0) 
{ 
IDictionaryEnumerator items = ht.GetEnumerator(); 
while (items.MoveNext()) 
sCmd.Parameters.Add(MakeParam(items.Key.ToString(),items.Value.ToString())); 
} 
sCmd.Connection = sconn; 
sCmd.CommandText = sqls; 
} 
private static void ConfigCMD(ArrayList alist,OleDbCommand sCmd,string sqls) 
{ 
if (sCmd ="=" null) throw new ArgumentException("sCmd未初始化"); 
if (alist != null && alist.Count != 0) 
{ 
foreach (object items in alist) 
{ 
Command.Model.typeFiles cmt = (Command.Model.typeFiles)items; 
sCmd.Parameters.Add(MakeParam(cmt.Fkey.ToString(),cmt.Fvalue1.ToString(),cmt.Fvalue2.ToString())); 
} 
} 
sCmd.Connection = sconn; 
sCmd.CommandText = sqls; 
} 
private static OleDbParameter MakeParam(string key,string value) 
{ 
return new OleDbParameter(key,value); 
} 
private static OleDbParameter MakeParam(string key,string F1,string F2) 
{ 
OleDbParameter par = null; 
if (F2.ToUpper() ="=" "STRING") 
{ 
par = new OleDbParameter(key,OleDbType.VarChar); 
} 
else if (F2.ToUpper() ="=" "INTEGER") 
{ 
par = new OleDbParameter(key,OleDbType.Integer); 
} 
else if (F2.ToUpper() ="=" "LSTRING") 
{ 
par = new OleDbParameter(key,OleDbType.LongVarChar); 
} 

// try 
// { 
par.Value = F1; 
// } 
// catch(Exception e) 
// { 
// throw new Exception(e.Message + " " + key + " " + F1 + " " + F2); 
// } 
return par; 
} 
public void ExecConfig(Hashtable ht,string sqls) 
{ 
OleDbCommand cmd="new OleDbCommand(); 
connOpen(); 
ConfigCMD(ht,cmd,sqls); 
ExecuteNonQuery(cmd); 
} 
public void ExecConfig(ArrayList alist,string sqls) 
{ 
OleDbCommand cmd="new OleDbCommand(); 
connOpen(); 
ConfigCMD(alist,cmd,sqls); 
ExecuteNonQuery(cmd); 
} 
/// <summary> 
/// 数据操作 
/// </summary> 
/// <param name="cmd"></param> 
private static void ExecuteNonQuery(OleDbCommand cmd) 
{ 
Command.AccessClass cw = new AccessClass(); 

try 
{ 
_returnValue = cmd.ExecuteNonQuery().ToString(); 
} 
catch (Exception e) {throw new Exception("Run Exec Error!"+e.Message);} 
finally 
{ 
cmd.Parameters.Clear(); 

cw.connClose(); 
} 
} 
/// <summary> 
/// sql语句型datatable 
/// </summary> 
/// <param name="sqls"></param> 
/// <returns></returns> 
public DataTable ReturnDatatableBySql(Hashtable ht,string sqls) 
{ 
DataTable dt="new DataTable(); 
OleDbCommand cmd="new OleDbCommand(); 
ConfigCMD(ht,cmd,sqls); 
OleDbDataAdapter sda="new OleDbDataAdapter(cmd); 
sda.Fill(dt); 
cmd.Parameters.Clear(); 

return dt; 
} 
public OleDbDataReader getReader(Hashtable ht,string sqls) 
{ 
connOpen(); 
OleDbCommand cmd="new OleDbCommand(); 
ConfigCMD(ht,cmd,sqls); 
OleDbDataReader reader = cmd.ExecuteReader(); 
return reader; 

//reader.Close(); 
//cmd.Parameters.Clear(); 
//connClose(); 
} 
public OleDbDataReader getReader(ArrayList alist,string sqls) 
{ 
connOpen(); 
OleDbCommand cmd="new OleDbCommand(); 
ConfigCMD(alist,cmd,sqls); 
OleDbDataReader reader = cmd.ExecuteReader(); 
return reader; 

//reader.Close(); 
//cmd.Parameters.Clear(); 
//connClose(); 
} 

public string ReturnValue 
{ 
get 
{ 
return _returnValue; 
} 
set 
{ 
_returnValue = value; 
} 
} 
} 
}