我正在使用 excel（用于批量数据输入）和 Access（用于存放数据）制作一个非常基本的数据输入和数据库系统应用程序。我玩以将其作为 zip 文件分发。为了让它工作，我需要文件结构保持不变并解压缩到 c:/ 驱动器。无论如何强制zip文件解压缩到特定位置？
我需要这个的原因是自动上传输入的数据。据我所知，在 Access VBA 中，您必须在 VBA 中指定完整的文件路径才能导入数据。
*更新
感谢 Remou 让我走出困境。只是为了后代的缘故，这就是我解决它的方法。不是最漂亮的代码，但它可以完成工作。首先是导入功能，然后是导出功能。
导入时，上传的文件仍然需要命名约定，但它们可以来自任何地方。该文件名与它们将存储在其中的表相关。在 excel 表的后端，数据输入表分为两部分（Rec 和 Occ）
代码如下：
函数 importData_Click(Optional varDirectory As String, _ Optional varTitleForDialog As String) As String
Dim strFilter As String
Dim lngFlags As Long
Dim varFileName As String
Dim strFileName As String
Dim strTableName As String
Dim strColumnName As String
Dim The_Year As Long
Dim occNumber As Long
'Get combobox value and assign relavent values to occNumber
The_Year = Forms![Upload Data]!Year_Combo.value
'Ask the to check value
If MsgBox("Uploading " & The_Year & " data" & vbCrLf & "Continue?", VbMsgBoxStyle.vbYesNo) = 7 Then
Exit Function
End If
If The_Year = 2012 Then
occNumber = 1000
ElseIf The_Year = 2013 Then
occNumber = 2000
End If
' Specify that the chosen file must already exist,
' don't change directories when you're done
' Also, don't bother displaying
' the read-only box. It'll only confuse people.
lngFlags = ahtOFN_FILEMUSTEXIST Or _
ahtOFN_HIDEREADONLY Or ahtOFN_NOCHANGEDIR
If IsMissing(varDirectory) Then
varDirectory = ""
End If
If IsMissing(varTitleForDialog) Then
varTitleForDialog = ""
End If
strFilter = ahtAddFilterItem("Excel Files (*.xlsx)", "*.xlsx")
varFileName = ahtCommonFileOpenSave( _
openFile:=True, _
InitialDir:=varDirectory, _
Filter:=strFilter, _
Flags:=lngFlags, _
DialogTitle:=varTitleForDialog)
If Not IsNull(varFileName) Then
varFileName = TrimNull(varFileName)
End If
importData_Click = varFileName
'Sets filename
strFileName = Dir(varFileName)
'Sets TableName
strTableName = Left(strFileName, 4)
If IsNull(strFileName) Then
MsgBox "Upload cancelled"
Exit Function
End If
'Checks naming convetions of filenames
If strTableName Like "*MN" Or strTableName Like "*OP" Or strTableName Like "*DA" Or strTableName Like "*TR" Then
'Checks if data is Opportunistic
If strTableName Like "*OP" Then
strColumnName = "Year_" & strTableName
'Checks to see if that year's data already exists
If DLookup(strColumnName, strTableName & "_Rec", "" & strColumnName & " = " & The_Year & "") Then
MsgBox "2012 data is already present"
ElseIf DLookup(strColumnName, strTableName & "_Rec", "" & strColumnName & " = " & The_Year & "") Then
MsgBox "2013 data is already present"
Else
'Uploads data to relevant table
DoCmd.TransferSpreadsheet acImport, acSpreadsheetTypeExcel12Xml, strTableName & "_Rec", varFileName, True, "Rec_Prep$"
MsgBox "Upload successful"
End If
Exit Function
Else
strColumnName = "Occasion_" & strTableName
'Checks Occasions to see if that year exists
If DLookup(strColumnName, strTableName & "_Rec", "" & strColumnName & " = " & occNumber & "") Then
MsgBox "2012 data is already present"
ElseIf DLookup(strColumnName, strTableName & "_Rec", "" & strColumnName & " = " & occNumber & "") Then
MsgBox "2013 data is already present"
Else
'Uploads to Records table and Occasion table
DoCmd.TransferSpreadsheet acImport, acSpreadsheetTypeExcel12Xml, strTableName & "_Occ", varFileName, True, "Occ_Prep$"
DoCmd.TransferSpreadsheet acImport, acSpreadsheetTypeExcel12Xml, strTableName & "_Rec", varFileName, True, "Rec_Prep$"
MsgBox "Upload successful"
End If
End If
Else
MsgBox "Your file is named incorrectly! & vbCrLf & Please refer to the Data Dictionary & vbCrLf & for correct naming conventions"
Exit Function
End If
'DoCmd.TransferSpreadsheet acExport, acSpreadsheetTypeExcel12Xml, "BaMN_AllData", strSaveFileName
End Function
Private Function TrimNull(ByVal strItem As String) As String
Dim intPos As Integer
intPos = InStr(strItem, vbNullChar)
If intPos > 0 Then
TrimNull = Left(strItem, intPos - 1)
Else
TrimNull = strItem
End If
End Function
然后导出使用命令按钮的名称（匹配表名称）导出到用户想要的任何位置：
Dim queryYear As Variant
'Function to export data to location of users choice. Query name is automatically detected from the control button used
'Year is derived from the combobox value on [Extract Data] form, null value defaults to all years.
Function exportData_Click()
Dim strFilter As String
Dim strSaveFileName As String
Dim The_Year As Variant
Dim ctlCurrentControl As Control
Dim queryName As String
'Get the name of the control button clicked (corresponds to query name to be run)
Set ctlCurrentControl = Screen.ActiveControl
queryName = ctlCurrentControl.Name
'Get combobox value and assign relavent values to The_Year
The_Year = Forms![Extract Data]!Extract_Year.value
'Change the year from a variant to what we need in the SQL
If The_Year Like "20*" Then
The_Year = CInt(The_Year)
MsgBox The_Year & "Data Type = " & VarType(The_Year)
Else: The_Year = "*"
MsgBox The_Year & "Data Type = " & VarType(The_Year)
End If
'Set queryYear variable
setYear (The_Year)
'Check the variable is correct
'MsgBox getYear()
'Open the Save as Dialog to choose location of query save
strFilter = ahtAddFilterItem("Excel Files (*.xlsx)", "*.xlsx")
strSaveFileName = ahtCommonFileOpenSave( _
openFile:=False, _
Filter:=strFilter, _
Flags:=ahtOFN_OVERWRITEPROMPT Or ahtOFN_READONLY)
DoCmd.TransferSpreadsheet acExport, acSpreadsheetTypeExcel12Xml, queryName, strSaveFileName
End Function
'Function to set queryYear used in data extraction queries
Public Function setYear(The_Year As Variant)
queryYear = The_Year
End Function
'Function to get queryYear used in data extraction queries
Function getYear()
getYear = queryYear
End Function
需要注意的是，文件保存和文件打开代码部分不是我的。它们来自 Ken Getz，整个代码可以在这里找到：