300 分求助 ajax post HttpWebRequest

[songhuan]

POST /ajax/NRT.WebSite.PropertySearch.Business.SearchUIController,NRT.Website.PropertySearch.ashx?_method=GetResultsHTML&_session=rw HTTP/1.1
Host: www.coldwellbankermove.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Referer: http://www.coldwellbankermove.com/property/PropertyResults.aspx
Content-Length: 128
Content-Type: application/xml; charset=UTF-8
Cookie: StateID=26; WT_FPC=id=2789c3ba7af6546c7401226939806400:lv=1228328694364:ss=1228328097037; ARPT=WINPMOS172.16.25.192CKMWY; ASP.NET_SessionId=atfafh55us4sdhaebvvgimmt; OAS_SC1=1228379093650
Pragma: no-cache
Cache-Control: no-cache
searchID=35677
pageNumber=1
maxListingsPerPage=10
sortColumn=0
sourceID=-1
displayMode=0
bIsConsumerSearch=false
dtSince=



以上是本人使用Live Http Headers抓取的post数据，小弟有一个地方不明白，在Cache-Control: no-cache之后，post的数据是这样的，
searchID=35677
pageNumber=1
maxListingsPerPage=10
sortColumn=0
sourceID=-1
displayMode=0
bIsConsumerSearch=false
dtSince=
可是一般都是searchID=35677&pageNumber=1&maxListingsPerPage=10 这样的 name=value&name=value
请教我要使用HttpWebRequest post的时候，post的数据体怎么写？
本人已经试过在每一行post数据之后加\r\n,可是光加这个是不行的。请指教.

[songhuan]

回1楼，我的问题不是采取post还是get的问题，而是post的数据体怎么写的问题，感谢回复.

[peacock]

string postData = "searchID=35677";
postData += "&pageNumber=1";
postData += "&maxListingsPerPage=10";
postData += "&sortColumn=0";
postData += "&sourceID=-1";
postData += "&displayMode=0";
postData += "&bIsConsumerSearch=false";
postData += "&dtSince=";
byte[] data = encoding.GetBytes(postData);
HttpWebRequest myRequest =
(HttpWebRequest)WebRequest.Create("http://www.coldwellbankermove.com/property/PropertyResults.aspx");
myRequest.Method = "POST";
myRequest.ContentType = "application/x-www-form-urlencoded";
myRequest.ContentLength = data.Length;
Stream newStream = myRequest.GetRequestStream();
//Send the data.
newStream.Write(data, 0, data.Length);
newStream.Close();

[songhuan]

感谢楼上回复，本人在上边已有说明，此页面的post数据体跟普通的post不同，所以不能采用 name=value&name=value,这样得到的结果是错误的

再者，需要post的页面是http://www.coldwellbankermove.com//ajax/NRT.Website.MySite.Business.MySiteProvider,NRT.Website.MySite.ashx?_method=SetFormsAuthCookie&_session=no

[songhuan]

sorry,是这个地址

http://www.coldwellbankermove.com/ajax/NRT.WebSite.PropertySearch.Business.SearchUIController,NRT.Website.PropertySearch.ashx?_method=GetResultsHTML&_session=rw

[songhuan]

感谢peacock，问题已自己解决
post的时候需要特殊处理
searchID=35677
pageNumber=1
maxListingsPerPage=10
sortColumn=0
sourceID=-1
displayMode=0
bIsConsumerSearch=false
dtSince=

把这几个参数分开转化为字节数组后，合并自己数组并在中间加上13 10

If (PostData <> String.Empty) Then
                request.Method = "POST"
                request.ContentType = "application/x-www-form-urlencoded"
                Dim byteArray As Byte()
                Dim NewLineIndex As Integer = PostData.IndexOf("\r\n")
                If (NewLineIndex = -1) Then
                    byteArray = Encoding.UTF8.GetBytes(PostData)
                Else
                    Dim NewPost As New Hashtable
                    While NewLineIndex <> -1
                        byteArray = Encoding.UTF8.GetBytes(PostData.Substring(0, NewLineIndex))
                        For i As Integer = 0 To byteArray.Length - 1
                            NewPost(NewPost.Count) = byteArray(i)
                        Next
                        PostData = PostData.Substring(NewLineIndex + 4, PostData.Length - NewLineIndex - 4)
                        NewPost(NewPost.Count) = 13
                        NewPost(NewPost.Count) = 10
                        NewLineIndex = PostData.IndexOf("\r\n")
                    End While
                    byteArray = Encoding.UTF8.GetBytes(PostData)
                    For i As Integer = 0 To byteArray.Length - 1
                        NewPost(NewPost.Count) = byteArray(i)
                    Next
                    Dim byteArrayTem(NewPost.Count - 1) As Byte

                    For i As Integer = 0 To byteArrayTem.Length - 1
                        byteArrayTem(i) = NewPost(i)
                    Next
                    byteArray = byteArrayTem
                End If
                request.ContentLength = byteArray.Length
                'post
                Dim newStream As Stream = request.GetRequestStream()
                newStream.Write(byteArray, 0, byteArray.Length)
                newStream.Flush()
                newStream.Close()

            End If

[tianshangfei]

学习~

[songhuan]

searchID=35677\r\npageNumber=12\r\nmaxListingsPerPage=10\r\nsortColumn=0\r\nsourceID=-1\r\ndisplayMode=0\r\nbIsConsumerSearch=False\r\ndtSince=

字符串这样写，供碰到同样问题的兄弟参考

[peacock]

name=value&name=value
这种形式是GET方式，而你抓取的数据采用的是POST方法，你可以对HttpWebRequest进行Method设置，比如

HttpWebRequest vReq = (HttpWebRequest) HttpWebRequest.Create("http://www.coldwellbankermove.com/property/PropertyResults.aspx");
vReq.Method = "POST"; //POST方法
//vReq.Method = "GET"; //GET方法
using (WebResponse vWR = vReq.GetResponse())
{
    //在这里对接收到的页面内容进行处理
}