如何通过HTTP发布到Google文档生成的表单 [英] How to HTTP Post to Google Docs generated form

问题描述

以编程方式填写在线表单与发布到Google文档生成的表单(例如Google Spreadsheet Live表单)有什么区别?

我尝试了以下操作，但均未成功:

What is the difference in programmatically filling in an online form versus posting to a Google-documents-generated form such as a Google Spreadsheet Live Form?

I tried the following with no success:

WebRequest req = WebRequest.Create(URI);
req.ContentType = "application/x-www-form-urlencoded";
req.Method = "POST";
string postData = "entry.0.single=ABCD&entry.1.single=EFGH&submit=click";
byte[] byteArray = Encoding.UTF8.GetBytes (postData);
req.ContentLength = byteArray.Length;
Stream os = req.GetRequestStream ();
os.Write (byteArray, 0, byteArray.Length); 
os.Close ();

响应使我回到了Google表单.
:confused:

and the response just gets me back to the Google form.
:confused:

推荐答案

我对此有很多麻烦，但是在查看了google代码并使用Wireshark嗅探HTTP Post之后，我能够获得此信息-一个很好的起点(但是我在一些更复杂的测试表单中收到405错误..不确定为什么)

I had alot of trouble with this, but after looking at the google code and sniffing the HTTP Post with Wireshark i was able to obtain this- a good starting point (but I was getting 405 errors on some of my more complicated test forms.. not sure why)

Imports System.Web
Imports System.Net
Imports System.IO
Imports System.Text


Public Class Form1
    Dim request As HttpWebRequest
    Dim response As HttpWebResponse = Nothing
    Dim reader As StreamReader
    Dim address As Uri
    Dim appId As String
    Dim context As String
    Dim query As String
    Dim data As StringBuilder
    Dim byteData() As Byte
    Dim postStream As Stream = Nothing
    ''''Dim myHttpUtility As HttpUtility

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        post()
    End Sub


    Sub post()

        address = New Uri("http://googleform")

        '' Create the web request  
        request = DirectCast(WebRequest.Create(address), HttpWebRequest)

        '' Set type to POST  
        request.Method = "POST"
        request.ContentType = "application/x-www-form-urlencoded"

        '' Create the data we want to send  
        appId = "ss-form"
        

        data = New StringBuilder()

        data.Append("entry.0.single=" + HttpUtility.UrlEncode(BrandBox.Text))
        data.Append("&entry.2.single=" + HttpUtility.UrlEncode(ModelBox.Text))
        data.Append("&entry.3.single=" + HttpUtility.UrlEncode(ModelStringBox.Text))

        '' Create a byte array of the data we want to send  
        byteData = UTF8Encoding.UTF8.GetBytes(data.ToString())

        '' Set the content length in the request headers  
        request.ContentLength = byteData.Length

        '' Write data  
        Try
            postStream = request.GetRequestStream()
            postStream.Write(byteData, 0, byteData.Length)
        Finally
            If Not postStream Is Nothing Then postStream.Close()
        End Try

        Try
            '' Get response  
            response = DirectCast(request.GetResponse(), HttpWebResponse)

            '' Get the response stream into a reader  
            reader = New StreamReader(response.GetResponseStream())

            '' Console application output  
            MessageBox.Show(reader.ReadToEnd())
        Finally
            If Not response Is Nothing Then response.Close()
        End Try




    End Sub



End Class

-d www.chromableedstudios.com [ ^ ]

-dwww.chromableedstudios.com[^]

嗨
非常感谢您对此进行调查.我回家后就去试试.

我注意到数据字符串不包含提交"吗?在搜寻答案时，我发现了一些建议，包括pageNumber backupCache并在数据字符串中提交.

今天晚上我会尝试一下.

干杯

Hi
Thanks so much for looking into this. I''ll give this a go when I get home.

I notice that the data string didn''t include ''submit''? In googling for answers, I found some suggestions to include pageNumber backupCache and submit in the data string.

I''ll try this out this evening.

Cheers

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