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【ASP】 ASP操作数据库类
作者:Dezai.CN / 发布于2013/5/12/ 1139
非常不错的ASP操作数据库类，支持多数据库MSSQL,ACCESS,ORACLE,MYSQL等

	<%
	'==========================================================================
	'文件名称：clsDbCtrl.asp
	'功　　能：数据库操作类

	Dim a : a = CreatConn(0, "master", "localhost", "sa", "") 'MSSQL数据库
	'Dim a : a = CreatConn(1, "Data/%TestDB%.mdb", "", "", "") 'Access数据库
	'Dim a : a = CreatConn(1, "E:\MyWeb\Data\%TestDB%.mdb", "", "", "mdbpassword")
	Dim Conn
	'OpenConn() '在加载时就建立的默认连接对象Conn,默认使用数据库a
	Sub OpenConn : Set Conn = Oc(a) : End Sub
	Sub CloseConn : Co(Conn) : End Sub

	Function Oc(ByVal Connstr)
	On Error Resume Next
	Dim objConn
	Set objConn = Server.CreateObject("ADODB.Connection")
	objConn.Open Connstr
	If Err.number <> 0 Then
	 Response.Write("<div id=""DBError"">数据库服务器端连接错误，请与网站管理员联系。</div>")
	 'Response.Write("错误信息：" & Err.Description)
	 objConn.Close
	 Set objConn = Nothing
	 Response.End
	End If
	Set Oc = objConn
	End Function

	Sub Co(obj)
	On Error Resume Next
	Set obj = Nothing
	End Sub

	Function CreatConn(ByVal dbType, ByVal strDB, ByVal strServer, ByVal strUid, ByVal strPwd)
	Dim TempStr
	Select Case dbType
	 Case "0","MSSQL"
	 TempStr = "driver={sql server};server="&strServer&";uid="&strUid&";pwd="&strPwd&";database="&strDB
	 Case "1","ACCESS"
	 Dim tDb : If Instr(strDB,":")>0 Then : tDb = strDB : Else : tDb = Server.MapPath(strDB) : End If
	 TempStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="&tDb&";Jet OLEDB:Database Password="&strPwd&";"
	 Case "3","MYSQL"
	 TempStr = "Driver={mySQL};Server="&strServer&";Port=3306;Option=131072;Stmt=; Database="&strDB&";Uid="&strUid&";Pwd="&strPwd&";"
	 Case "4","ORACLE"
	 TempStr = "Driver={Microsoft ODBC for Oracle};Server="&strServer&";Uid="&strUid&";Pwd="&strPwd&";"
	End Select
	CreatConn = TempStr
	End Function

	
	Class dbCtrl
	Private debug
	Private idbConn
	Private idbErr
	
	Private Sub Class_Initialize()
	 debug = true '调试模式是否开启
	 idbErr = "出现错误："
	 If IsObject(Conn) Then
	 Set idbConn = Conn
	 End If
	End Sub
	
	Private Sub Class_Terminate()
	 Set idbConn = Nothing
	 If debug And idbErr<>"出现错误：" Then Response.Write(idbErr)
	End Sub
	
	Public Property Let dbConn(pdbConn)
	 If IsObject(pdbConn) Then
	 Set idbConn = pdbConn
	 Else
	 Set idbConn = Conn
	 End If
	End Property
	
	Public Property Get dbErr()
	 dbErr = idbErr
	End Property
	
	Public Property Get Version
	 Version = "ASP Database Ctrl V1.0 By ColdStone"
	End Property

	Public Function AutoID(ByVal TableName)
	 On Error Resume Next
	 Dim m_No,Sql, m_FirTempNo
	 Set m_No=Server.CreateObject("adodb.recordset")
	 Sql="SELECT * FROM ["&TableName&"]"
	 m_No.Open Sql,idbConn,3,3
	 If m_No.EOF Then
	 AutoID=1
	 Else
	 Do While Not m_No.EOF
	 m_FirTempNo=m_No.Fields(0).Value
	 m_No.MoveNext
	 If m_No.EOF Then
	 AutoID=m_FirTempNo+1
	 End If
	 Loop
	 End If
	 If Err.number <> 0 Then
	 idbErr = idbErr & "无效的查询条件！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 Response.End()
	 Exit Function
	 End If
	 m_No.close
	 Set m_No = Nothing
	End Function

	Public Function GetRecord(ByVal TableName,ByVal FieldsList,ByVal Condition,ByVal OrderField,ByVal ShowN)
	 On Error Resume Next
	 Dim rstRecordList
	 Set rstRecordList=Server.CreateObject("adodb.recordset")
	 With rstRecordList
	 .ActiveConnection = idbConn
	 .CursorType = 3
	 .LockType = 3
	 .Source = wGetRecord(TableName,FieldsList,Condition,OrderField,ShowN)
	 .Open
	 If Err.number <> 0 Then
	 idbErr = idbErr & "无效的查询条件！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 .Close
	 Set rstRecordList = Nothing
	 Response.End()
	 Exit Function
	 End If
	 End With
	 Set GetRecord=rstRecordList
	End Function
	
	Public Function wGetRecord(ByVal TableName,ByVal FieldsList,ByVal Condition,ByVal OrderField,ByVal ShowN)
	 Dim strSelect
	 strSelect="select "
	 If ShowN > 0 Then
	 strSelect = strSelect & " top " & ShowN & " "
	 End If
	 If FieldsList<>"" Then
	 strSelect = strSelect & FieldsList
	 Else
	 strSelect = strSelect & " * "
	 End If
	 strSelect = strSelect & " from [" & TableName & "]"
	 If Condition <> "" Then
	 strSelect = strSelect & " where " & ValueToSql(TableName,Condition,1)
	 End If
	 If OrderField <> "" Then
	 strSelect = strSelect & " order by " & OrderField
	 End If
	 wGetRecord = strSelect
	End Function

	Public Function GetRecordBySQL(ByVal strSelect)
	 On Error Resume Next
	 Dim rstRecordList
	 Set rstRecordList=Server.CreateObject("adodb.recordset")
	 With rstRecordList
	 .ActiveConnection =idbConn
	 .CursorType = 3
	 .LockType = 3
	 .Source = strSelect
	 .Open
	 If Err.number <> 0 Then
	 idbErr = idbErr & "无效的查询条件！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 .Close
	 Set rstRecordList = Nothing
	 Response.End()
	 Exit Function
	 End If
	 End With
	 Set GetRecordBySQL = rstRecordList
	End Function

	Public Function GetRecordDetail(ByVal TableName,ByVal Condition)
	 On Error Resume Next
	 Dim rstRecordDetail, strSelect
	 Set rstRecordDetail=Server.CreateObject("adodb.recordset")
	 With rstRecordDetail
	 .ActiveConnection =idbConn
	 strSelect = "select * from [" & TableName & "] where " & ValueToSql(TableName,Condition,1)
	 .CursorType = 3
	 .LockType = 3
	 .Source = strSelect
	 .Open
	 If Err.number <> 0 Then
	 idbErr = idbErr & "无效的查询条件！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 .Close
	 Set rstRecordDetail = Nothing
	 Response.End()
	 Exit Function
	 End If
	 End With
	 Set GetRecordDetail=rstRecordDetail
	End Function

	Public Function AddRecord(ByVal TableName, ByVal ValueList)
	 On Error Resume Next
	 DoExecute(wAddRecord(TableName,ValueList))
	 If Err.number <> 0 Then
	 idbErr = idbErr & "写入数据库出错！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 'DoExecute "ROLLBACK TRAN Tran_Insert" '如果存在添加事务（事务滚回）
	 AddRecord = 0
	 Exit Function
	 End If
	 AddRecord = AutoID(TableName)-1
	End Function
	
	Public Function wAddRecord(ByVal TableName, ByVal ValueList)
	 Dim TempSQL, TempFiled, TempValue
	 TempFiled = ValueToSql(TableName,ValueList,2)
	 TempValue = ValueToSql(TableName,ValueList,3)
	 TempSQL = "Insert Into [" & TableName & "] (" & TempFiled & ") Values (" & TempValue & ")"
	 wAddRecord = TempSQL
	End Function

	Public Function UpdateRecord(ByVal TableName,ByVal Condition,ByVal ValueList)
	 On Error Resume Next
	 DoExecute(wUpdateRecord(TableName,Condition,ValueList))
	 If Err.number <> 0 Then
	 idbErr = idbErr & "更新数据库出错！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 'DoExecute "ROLLBACK TRAN Tran_Update" '如果存在添加事务（事务滚回）
	 UpdateRecord = 0
	 Exit Function
	 End If
	 UpdateRecord = 1
	End Function

	Public Function wUpdateRecord(ByVal TableName,ByVal Condition,ByVal ValueList)
	 Dim TmpSQL
	 TmpSQL = "Update ["&TableName&"] Set "
	 TmpSQL = TmpSQL & ValueToSql(TableName,ValueList,0)
	 TmpSQL = TmpSQL & " Where " & ValueToSql(TableName,Condition,1)
	 wUpdateRecord = TmpSQL
	End Function

	Public Function DeleteRecord(ByVal TableName,ByVal IDFieldName,ByVal IDValues)
	 On Error Resume Next
	 Dim Sql
	 Sql = "Delete From ["&TableName&"] Where ["&IDFieldName&"] In ("
	 If IsArray(IDValues) Then
	 Sql = Sql & "Select ["&IDFieldName&"] From ["&TableName&"] Where " & ValueToSql(TableName,IDValues,1)
	 Else
	 Sql = Sql & IDValues
	 End If
	 Sql = Sql & ")"
	 DoExecute(Sql)
	 If Err.number <> 0 Then
	 idbErr = idbErr & "删除数据出错！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 'DoExecute "ROLLBACK TRAN Tran_Delete" '如果存在添加事务（事务滚回）
	 DeleteRecord = 0
	 Exit Function
	 End If
	 DeleteRecord = 1
	End Function
	
	Public Function wDeleteRecord(ByVal TableName,ByVal IDFieldName,ByVal IDValues)
	 On Error Resume Next
	 Dim Sql
	 Sql = "Delete From ["&TableName&"] Where ["&IDFieldName&"] In ("
	 If IsArray(IDValues) Then
	 Sql = Sql & "Select ["&IDFieldName&"] From ["&TableName&"] Where " & ValueToSql(TableName,IDValues,1)
	 Else
	 Sql = Sql & IDValues
	 End If
	 Sql = Sql & ")"
	 wDeleteRecord = Sql
	End Function

	Public Function ReadTable(ByVal TableName,ByVal Condition,ByVal GetFieldNames)
	 On Error Resume Next
	 Dim rstGetValue,Sql,BaseCondition,arrTemp,arrStr,TempStr,i
	 TempStr = "" : arrStr = ""
	 '给出SQL条件语句
	 BaseCondition = ValueToSql(TableName,Condition,1)
	 '读取数据
	 Set rstGetValue = Server.CreateObject("ADODB.Recordset")
	 Sql = "Select "&GetFieldNames&" From ["&TableName&"] Where "&BaseCondition
	 rstGetValue.Open Sql,idbConn,3,3
	 If rstGetValue.RecordCount > 0 Then
	 If Instr(GetFieldNames,",")>0 Then
	 arrTemp = Split(GetFieldNames,",")
	 For i = 0 To Ubound(arrTemp)
	 If i<>0 Then arrStr = arrStr &Chr(112)&Chr(112)&Chr(113)
	 arrStr = arrStr & rstGetValue.Fields(i).Value
	 Next
	 TempStr = Split(arrStr,Chr(112)&Chr(112)&Chr(113))
	 Else
	 TempStr = rstGetValue.Fields(0).Value
	 End If
	 End If
	 If Err.number <> 0 Then
	 idbErr = idbErr & "获取数据出错！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 rstGetValue.close()
	 Set rstGetValue = Nothing
	 Exit Function
	 End If
	 rstGetValue.close()
	 Set rstGetValue = Nothing
	 ReadTable = TempStr
	End Function

	Public Function C(ByVal ObjRs)
	 ObjRs.close()
	 Set ObjRs = Nothing
	End Function
	
	Private Function ValueToSql(ByVal TableName, ByVal ValueList, ByVal sType)
	 Dim StrTemp
	 StrTemp = ValueList
	 If IsArray(ValueList) Then
	 StrTemp = ""
	 Dim rsTemp, CurrentField, CurrentValue, i
	 Set rsTemp = Server.CreateObject("adodb.recordset")
	 With rsTemp
	 .ActiveConnection = idbConn
	 .CursorType = 3
	 .LockType = 3
	 .Source ="select * from [" & TableName & "] where 1 = -1"
	 .Open
	 For i = 0 to Ubound(ValueList)
	 CurrentField = Left(ValueList(i),Instr(ValueList(i),":")-1)
	 CurrentValue = Mid(ValueList(i),Instr(ValueList(i),":")+1)
	 If i <> 0 Then
	 Select Case sType
	 Case 1
	 StrTemp = StrTemp & " And "
	 Case Else
	 StrTemp = StrTemp & ", "
	 End Select
	 End If
	 If sType = 2 Then
	 StrTemp = StrTemp & "[" & CurrentField & "]"
	 Else
	 Select Case .Fields(CurrentField).Type
	 Case 7,133,134,135,8,129,200,201,202,203
	 If sType = 3 Then
	 StrTemp = StrTemp & "'"&CurrentValue&"'"
	 Else
	 StrTemp = StrTemp & "[" & CurrentField & "] = '"&CurrentValue&"'"
	 End If
	 Case 11
	 If UCase(cstr(Trim(CurrentValue)))="TRUE" Then
	 If sType = 3 Then
	 StrTemp = StrTemp & "1"
	 Else
	 StrTemp = StrTemp & "[" & CurrentField & "] = 1"
	 End If
	 Else
	 If sType = 3 Then
	 StrTemp = StrTemp & "0"
	 Else
	 StrTemp = StrTemp & "[" & CurrentField & "] = 0"
	 End If
	 End If
	 Case Else
	 If sType = 3 Then
	 StrTemp = StrTemp & CurrentValue
	 Else
	 StrTemp = StrTemp & "[" & CurrentField & "] = " & CurrentValue
	 End If
	 End Select
	 End If
	 Next
	 End With
	 If Err.number <> 0 Then
	 idbErr = idbErr & "生成SQL语句出错！"
	 If debug Then idbErr = idbErr & "错误信息："& Err.Description
	 rsTemp.close()
	 Set rsTemp = Nothing
	 Exit Function
	 End If
	 rsTemp.Close()
	 Set rsTemp = Nothing
	 End If
	 ValueToSql = StrTemp
	End Function

	Private Function DoExecute(ByVal sql)
	 Dim ExecuteCmd
	 Set ExecuteCmd = Server.CreateObject("ADODB.Command")
	 With ExecuteCmd
	 .ActiveConnection = idbConn
	 .CommandText = sql
	 .Execute
	 End With
	 Set ExecuteCmd = Nothing
	End Function
	End Class
	%>
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