Question

VB中怎样通过ADO存取Excel数据

如果用VB直接调用Excel的话速度非常慢，从网上查到通过ADO调用Excel比较快，请教大家怎么用，最好给一个实例，先谢过了

Answer 1

先来个临时存储，再删除，再添加修改好的。具体代码如下：
'//sql语句导出到excel
'//参数：strSQL－传入的sql语句，strTitle-对应sql语句中每列的标题(例如："编号|名称|规格")
Public Function SQLToExcel(ByVal strSQL As String, ByVal strTitle As String)
Dim rsTemp As ADODB.Recordset
Dim strExcelPath As String '//导出的excel文件路径
Dim arrTemp() As Variant
Dim arrTitle As Variant
Dim lngRows As Long
Dim lngCols As Long
Dim objExcelApp As Object
Dim objExcelWorkBook As Object
Dim objExcelWorkSheet As Object
Dim i As Long
Dim j As Long
On Error GoTo errHandle
If CheckExcel = False Then objInterCont.Tips "请确定已正确安装了Excel软件!": Exit Function
If Trim(strSQL) = "" Then Exit Function
Set rsTemp = mDB.Execute(strSQL)
If rsTemp.BOF And rsTemp.EOF Then
Set rsTemp = Nothing
objInterCont.Tips "没有要导出的数据，请重新选择查询条件!"
Exit Function
End If
Set objExcelApp = CreateObject("Excel.Application")
objExcelApp.Visible = False
With frmReport.dlgExport '//打开保存对话框
.FileName = ""
.DialogTitle = "请输入Excel文件名称"
.Filter = "Excel Files(*.xls)|*.xls" '//文件类型过虑为excel
.ShowSave
If Trim(.FileName) = "" Then Exit Function
strExcelPath = Trim(.FileName)
If Dir(Trim(.FileName)) <> "" Then '如果存在文件则提示
If MsgBox("文件已存在,是否替换原文件?", vbYesNo + vbQuestion, "提示") = vbYes Then
Kill Trim(.FileName)
Else
objExcelApp.Quit
Set objExcelApp = Nothing
Set rsTemp = Nothing
Exit Function
End If
End If
End With
Screen.MousePointer = 11
DoEvents
Err.Clear
lngRows = rsTemp.RecordCount
lngCols = rsTemp.Fields.Count
ReDim arrTemp(lngRows - 1, lngCols - 1)
i = 0
rsTemp.MoveFirst
Do While Not rsTemp.EOF
For j = 0 To lngCols - 1
arrTemp(i, j) = rsTemp.Fields(j).Value '//保存数据到数组
Next
rsTemp.MoveNext
i = i + 1
Loop
arrTitle = Split(strTitle, "|") '//保存标题到数组
Set objExcelWorkBook = objExcelApp.Workbooks.Add
Set objExcelWorkSheet = objExcelWorkBook.Worksheets(1) '写入第一个工作簿
With objExcelWorkSheet
.Range(.cells(1, 1), .cells(UBound(arrTemp, 1) + 2, UBound(arrTemp, 2) + 1)).NumberFormatLocal = "@"
.Range(.cells(1, 1), .cells(1, UBound(arrTitle, 1) + 1)).Font.Bold = True '//标题加粗
.Range(.cells(1, 1), .cells(1, UBound(arrTitle, 1) + 1)) = arrTitle '写入excel标题
.Range(.cells(2, 1), .cells(UBound(arrTemp, 1) + 2, UBound(arrTemp, 2) + 1)) = arrTemp '写入excel列内容
.cells.EntireColumn.AutoFit '//自动改变列大小
End With
objExcelWorkBook.SaveAs FileName:= _
strExcelPath, FileFormat:= _
1, Password:="", WriteResPassword:="", ReadOnlyRecommended:=False _
, CreateBackup:=False
objExcelApp.Quit

Set objExcelApp = Nothing
Set objExcelWorkBook = Nothing
Set objExcelWorkSheet = Nothing
Set rsTemp = Nothing
Erase arrTemp
Erase arrTitle
SQLToExcel = True
Screen.MousePointer = 0
objInterCont.Tips "导出数据成功!"
Exit Function
errHandle:
SQLToExcel = False
Set objExcelApp = Nothing
Set objExcelWorkBook = Nothing
Set objExcelWorkSheet = Nothing
Set rsTemp = Nothing
Erase arrTemp
Erase arrTitle
Screen.MousePointer = 0
If Err.Number = 75 Then
objInterCont.Tips "所覆盖的Excel文件属性只读,导出失败!"
Exit Function
End If
If Err.Number = 70 Then
objInterCont.Tips "所覆盖的Excel文件已打开,导出失败!"
Exit Function
End If
mobjErrLog.Record Err.Number, Err.Description, "DataOperator.cls", "SQLToExcel"
End Function

Answer 2

参见：

http://hi.baidu.com/%B4%F3%CA%A5%C3%C0%BA%EF%CD%F5/blog/item/10e90317ec0413054a90a7c5.html

是VBA的，你改一下就行了！