问题描述
学习骡子和 MEL。尝试在 Anypoint Studio 中设置选择卡第一个节点的表达式。
根据docs，基本逻辑运算符的示例是Sub Filtering()
Application.ScreenUpdating = False
Dim ws As Worksheet
Dim lrow_Critera_Data_Range As Long,lcol_Critera_Data_Range As Long
Set ws = Excel.ThisWorkbook.Worksheets("Hermes")
If Sheets("Hermes").AutoFilterMode Then 'If autofilter exists,then remove filter
Sheets("Hermes").AutoFilterMode = False
End If
'##### Get all the uniqe filter values #####
ws.AutoFilterMode = False 'Remove filter
Dim Critera_Data_Range() 'Range to filter
Dim Unique_Criteria_Data As Object 'Range to filter but with only unique values
Dim Filter_Row As Long
Set Unique_Criteria_Data = CreateObject("Scripting.Dictionary") 'Create dictionary to store unique values
lrow_Critera_Data_Range = ws.Cells(ws.Rows.Count,"C").End(xlUp).Row 'Last row in filter range
lcol_Critera_Data_Range = ws.Cells(8,ws.Columns.Count).End(xlToLeft).Column 'Last column in filter range
Critera_Data_Range = Application.Transpose(ws.Range(ws.Cells(8,"C"),ws.Cells(lrow_Critera_Data_Range,"C"))) 'Get all the Client names
For Filter_Row = 2 To UBound(Critera_Data_Range,1) 'Start from row 2 (to skip header) and add unique values to the dictionary
Unique_Criteria_Data(Critera_Data_Range(Filter_Row)) = 1 'Add value to dictionary
Next
'##### Loop through all the unqie Filter values and copy #####
Dim Filter_Value As Variant
Dim MyRangeFilter As Range
Set MyRangeFilter = ws.Range(ws.Cells(8,"A"),lcol_Critera_Data_Range))
'Set filter range
For Each Filter_Value In Unique_Criteria_Data.Keys
'Filter through all the unique names in dictionary "Unique_Criteria_Data"
'Debug.Print "Current Criteria: " & Filter_Value 'Print current unique Destination Pincode name
With MyRangeFilter
.AutoFilter Field:=3,Criteria1:=Filter_Value,Operator:=xlFilterValues
'Filtering the 3rd column and filter the current filter value
End With
ws.Range(ws.Cells(8,ws.Range(ws.Cells(8,ws.Cells(ws.Cells(Rows.Count,"C").End(xlUp).Row,ws.Cells(8,ws.Columns.Count).End(xlToLeft).Column))).SpecialCells(xlCellTypeVisible).copy
'copy only visible data from the filtering
Application.CutcopyMode = False 'Clear copy selection
Email_Addr = ws.Range("O" & MyRangeFilter.Offset(1,0).SpecialCells(xlCellTypeVisible)(1).Row).Value
Email_CC = ws.Range("P" & MyRangeFilter.Offset(1,0).SpecialCells(xlCellTypeVisible)(1).Row).Value
Email_BCC = ws.Range("Q" & MyRangeFilter.Offset(1,0).SpecialCells(xlCellTypeVisible)(1).Row).Value
Email_Sub = ws.Range("S" & MyRangeFilter.Offset(1,0).SpecialCells(xlCellTypeVisible)(1).Row).Value
' Make all the Dims
Dim OutApp As Object
Dim OutMail As Object
Dim SigString As String
Dim rng As Range
Dim lRow As Long,lCol As Long
Dim StrBody As String
' Set the abbreviations
Set ws = Excel.ThisWorkbook.Worksheets("Hermes")
filePath = ws.Cells(5,1)
subject = ws.Cells(2,5)
StrBody = Cells(5,3) & "<br><br>" & _
Cells(5,4) & "<br>"
'Select the appropriate range to copy and paste into the body of the email
Set rng = nothing
On Error Resume Next
Set rng = Sheets("Hermes").Range("A8:M" & Range("A8:M8").End(xlDown).Row).SpecialCells(xlCellTypeVisible)
On Error GoTo 0
If rng Is nothing Then
MsgBox "The selection Is Not valid." & _
vbNewLine & "Please correct And try again.",vbOKOnly
Exit Sub
End If
Set OutApp = CreateObject("outlook.application")
Set OutMail = OutApp.CreateItem(0)
'Create email
With OutMail
.subject = Email_Sub & "- " & subject & Date
.To = Email_Addr
.CC = Email_CC
.Bcc = Email_BCC
.Importance = 2
.SentOnBehalfOfName = Sheets("Hermes").Cells(2,3).Text
.display
Dim CountVisible As Long
Dim attach_cl As Range,attach_range As Range
Set attach_range = ws.Range(ws.Cells(9,"D"),ws.Range(ws.Cells(9,"D").End(xlUp).Row,"D"))).SpecialCells(xlCellTypeVisible) 'loop only visible data (attachment column) from the filtering
CountVisible = ws.AutoFilter.Range.Columns(4).SpecialCells(xlCellTypeVisible).Cells.Count - 1 'Count the visible cells from filtered data. Subtract 1 due to header. Number 4 is the column to check how many rows exists with data.
If CountVisible = 1 Then 'If only one row with data,then add the single attachment file
.Attachments.Add filePath & "\" & ws.Range("D" & MyRangeFilter.Offset(1,0).SpecialCells(xlCellTypeVisible)(1).Row).Value & ".pdf"
ElseIf CountVisible >= 2 Then 'If more equal or more than 2 files then loop through the visible range and then add the atttachements
For Each attach_cl In attach_range.SpecialCells(xlCellTypeVisible)
'Debug.Print attach_cl 'Check which attachment name currently is in the loop
.Attachments.Add filePath & "\" & Cells(attach_cl.Row,4).Value & ".pdf"
Next attach_cl
End If
.HTMLBody = "<font face=""Arial Nova"">" & StrBody & RangetoHTML(rng) & .HTMLBody
End With
On Error GoTo 0
Set OutMail = nothing
Set OutApp = nothing
Next Filter_Value
On Error Resume Next
ws.ShowAllData 'Reset filter
On Error GoTo 0
Application.ScreenUpdating = True
End Sub
Function RangetoHTML(rng As Range)
' Changed by Ron de Bruin 28-Oct-2006
Dim fso As Object
Dim ts As Object
Dim TempFile As String
Dim TempWB As Workbook
TempFile = Environ$("temp") & "\" & Format(Now,"dd-mm-yy h-mm-ss") & ".htm"
'copy the range and create a new workbook to past the data in
rng.copy
Set TempWB = Workbooks.Add(1)
With TempWB.Sheets(1)
.Cells(1).PasteSpecial Paste:=8
.Cells(1).PasteSpecial xlPasteValues,False,False
.Cells(1).PasteSpecial xlPasteFormats,False
.Cells(1).Select
Application.CutcopyMode = False
On Error Resume Next
.DrawingObjects.Visible = True
.DrawingObjects.Delete
On Error GoTo 0
End With
'Publish the sheet to a htm file
With TempWB.PublishObjects.Add( _
SourceType:=xlSourceRange,_
Filename:=TempFile,_
Sheet:=TempWB.Sheets(1).Name,_
Source:=TempWB.Sheets(1).UsedRange.Address,_
HtmlType:=xlHtmlStatic)
.Publish (True)
End With
'Read all data from the htm file into RangetoHTML
Set fso = CreateObject("Scripting.FileSystemObject")
Set ts = fso.GetFile(TempFile).OpenAsTextStream(1,-2)
RangetoHTML = ts.readall
ts.Close
RangetoHTML = Replace(RangetoHTML,"align=center x:publishsource=",_
"align=left x:publishsource=")
'Close TempWB
TempWB.Close savechanges:=False
'Delete the htm file we used in this function
Kill TempFile
Set ts = nothing
Set fso = nothing
Set TempWB = nothing
End Function
Function GetBoiler(ByVal sFile As String) As String
'Dick Kusleika
Dim fso As Object
Dim ts As Object
Set fso = CreateObject("Scripting.FileSystemObject")
Set ts = fso.GetFile(sFile).OpenAsTextStream(1,-2)
GetBoiler = ts.readall
ts.Close
End Function
但是，当我输入 #[(a == b) && (c != d)] 时，Anypoint 表示和号是无效输入。
我错过了什么？
解决方法
问题是您在 Mule 4.x 中尝试使用 MEL 表达式。 MEL 是 Mule 3.x 的表达语言。在 Mule 4 中，它被 DataWeave 2.0 取代。 Mule 4 不支持 MEL。有关语言和功能的详细信息，请参阅 Dataweave documentation。
根据经验，Anypoint Studio 6.x 用于开发 Mule 3 应用程序，Anypoint Studio 7.x 用于开发 Mule 4.x 应用程序。
在 Mule 4.x 中，等效的表达式为：
#[ (payload.myVar != "val1") and (payload.myVar != "val2") ]