Question

我很难过为什么这不起作用似乎无法找到任何问题。

这是代码。

Public Const MULTIPART_BOUNDARY = "speed"
Function getBalance() As String
Dim sEntityBody As String
Dim postBody() As Byte
Dim username As String
Dim password As String

username = CStr(frmMain.txtUser.text)
password = CStr(frmMain.txtPass.text)

sEntityBody = "--" & MULTIPART_BOUNDARY & vbCrLf
sEntityBody = sEntityBody & "Content-Disposition: form-data; name=""function""" & vbCrLf & vbCrLf & "balance" & vbCrLf
sEntityBody = sEntityBody & "--" & MULTIPART_BOUNDARY & vbCrLf
sEntityBody = sEntityBody & "Content-Disposition: form-data; name=""username""" & vbCrLf & vbCrLf & username & vbCrLf
sEntityBody = sEntityBody & "--" & MULTIPART_BOUNDARY & vbCrLf
sEntityBody = sEntityBody & "Content-Disposition: form-data; name=""password""" & vbCrLf & vbCrLf & password & vbCrLf
sEntityBody = sEntityBody & "--" & MULTIPART_BOUNDARY & "--" & vbCrLf

postBody = StrConv(sEntityBody, vbFromUnicode)

Dim xhr As Object
Set xhr = CreateObject("WinHttp.WinHttpRequest.5.1")
xhr.Option(WinHttpRequestOption_EnableRedirects) = False
If xhr Is Nothing Then Set xhr = CreateObject("WinHttp.WinHttpRequest")
If xhr Is Nothing Then Set xhr = CreateObject("MSXML2.ServerXMLHTTP")
If xhr Is Nothing Then Set xhr = CreateObject("Microsoft.XMLHTTP")
xhr.open "POST", "http://poster.example.com", False

xhr.setRequestHeader "User-Agent", "Alalala"
xhr.setRequestHeader "Content-Type", "multipart/form-data; boundary=" & MULTIPART_BOUNDARY
xhr.setRequestHeader "Content-Length", Len(sEntityBody)
xhr.send "" + sEntityBody 'postBody 'URLEncode(sEntityBody)

    If xhr.Status = 200 Then
        getBalance = xhr.responseText
    Else
        frmMain.addToChatbox "Failed at getting response from blah ErrCode:" & xhr.Status
    End If
End Function

现在下面的内容有效（虽然它只是一个HTML表格）。

<form 
 method="post" 
 action="http://poster.example.com/" 
 enctype="multipart/form-data">
 <input type="hidden" name="function" value="balance">
 <input type="text"   name="username" value="blah">
 <input type="text"   name="password" value="blah">
 <input type="submit" value="Send">
</form>

这是一个数据包嗅探。（将主机等改为示例之后）

POST / HTTP / 1.1..User-Agent： Alalala..Content型：多部分/格式的数据; 边界= speed..Content-长度： 233.Accept： / ..主持人：poster.example.com..Connection： Keep-Alive ....-- speed..Content-Dispostion：form-data; NAME = “功能” ....平衡..-- speed..Content-Dispostion：形式数据; NAME = “用户名” ....等等..-- speed..Content-Dispostion：形式数据; NAME = “密码” ....等等..--速度 - ..

回复是空的

HTTP / 1.1 200 OK ..日期：星期四，10月7日 2010 20:31:20 GMT..Server： Apache..Content-Length：0..Connection： close..Content-Type：text / html; 字符集= UTF-8 ....

P.S.＆GT;不需要发送带有值Send的提交按钮，如果有人想知道那就不是它。可能是什么，我从嗅探中注意到，它将标题+发布数据（上传数据）作为一个数据包发送，firefox / chrome将其作为2个单独的数据包发送。

谢谢

Answer 1

错误拼写内容处理必须 Content-Disposition 是的，因为我已经痛苦了6岁？也许7个小时。

终于解决了

Post Method + WinHttpRequest + multipart / form-data

1 个答案: