Question

我正在尝试在网站上发出POST请求，以上传Excel文件。当我手动执行操作（手动浏览文件输入html元素中的文件）并捕获网络流量时，fiddler上将显示以下消息：

Host: electool.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0
Accept: */*
Accept-Language: es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate, br
X-Requested-With: XMLHttpRequest
Content-Type: multipart/form-data; boundary=---------------------------8432274816859
Content-Length: 35577
DNT: 1
Connection: keep-alive
Referer: https://electool.com/sourcingtool/pageflowViews/tender_view/action.html?pageflow=tender_view:-2
Cookie: JSESSIONID=87C7F4550EFBDF7A8D6F94C2D021CBB5; electool_sso=5A7A319313EA0EF4

-----------------------------8432274816859
Content-Disposition: form-data; name="qId"

1
-----------------------------8432274816859
Content-Disposition: form-data; name="attachment_1"; filename="A_aFRR negatív_QWERTY00_W38.xlsx"
Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
..."

我想对excel vba进行相同操作（选择文件并发布相同的消息以上传excel文件）

我现在拥有的代码：

    For i = 1 To ie.Manage.Cookies.Count
     myCookie = myCookie & ie.Manage.Cookies.Item(i).Name & "=" & ie.Manage.Cookies.Item(i).Value & "; "
    Next
    myCookie = Left(myCookie, Len(myCookie) - 2)
    Dim strBoundary As String
    strBoundary = "-----------------------------501911906621"

    myURL2 = "https://electool.com/sourcingtool/participant/ajaxSaveAttachment.htm"
    sPayLoad = strBoundary & vbNewLine & _
      "Content-Disposition: form-data; name=""qId""" & vbNewLine & vbNewLine & _
      "1" & vbNewLine & strBoundary & vbNewLine & _
      "Content-Disposition: form-data; name=""attachment_1"";filename=""E_W_37_negativ.xlsx""" & _
      vbNewLine & "Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" & _
      vbNewLine & vbNewLine

    sPayLoad = sPayLoad & GetFile(myFile) & strBoundary

    With CreateObject("Msxml2.ServerXMLHTTP.6.0")
        .Open "POST", myURL2, False
        .setRequestHeader "Content-Type", "multipart/form-data; boundary=" & strBoundary
        .setRequestHeader "Content-Length", LenB(sPayLoad)
        .setRequestHeader "Host", "electool.com"
        .setRequestHeader "Cookie", myCookie
        .setRequestHeader "Referer", ie.url
        .send (sPayLoad)
        Debug.Print .responseText
    End With
End Sub

Function GetFile(ByVal FileName As String) As String
    Dim FileContents() As Byte, FileNumber As Integer
    ReDim FileContents(FileLen(FileName) - 1)
    FileNumber = FreeFile()
    Open FileName For Binary As FileNumber
    Get FileNumber, , FileContents
    Close (FileNumber)
    GetFile = StrConv(FileContents, vbUnicode)
End Function

我得到的答复是：ng failed; nested exception is com.electool.sourcing.framework.util.request.exception.RequestParameterNotPresentException: Not found parameter: [qId] in request!

我也尝试了在此链接上找到的内容，但是仍然无法正常工作（或者我在VBA中无法很好地实现它） https://wqweto.wordpress.com/2011/07/12/vb6-using-wininet-to-post-binary-file/

Answer 1

我设法完成了这项工作，使用下面链接中的概念（边界也存在问题）。 File updload in post form in VBS

VBA发布请求错误-多部分/表单数据

1 个答案: