如何将JavaScript post代码更改为asp.net HttpWebRequest

如何将JavaScript post代码更改为asp.net HttpWebRequest,javascript,asp.net,vb.net,httpwebrequest,httpwebresponse,Javascript,Asp.net,Vb.net,Httpwebrequest,Httpwebresponse,我有一个JavaScript代码,可以向web Url发送POST请求并获取响应。响应包含一个字符串和一些cookies,现在我想将其转换为VB.net aspx代码,因此,由于跨域问题,我编写了此操作服务器端,但代码不起作用,所有响应都有空正文。我能请求一些帮助吗 JavaScript代码 function goldprice_req(deltas, goldurl) { (function ($) { $.ajax('Some URL?_t=' + timenow , {

我有一个JavaScript代码,可以向web Url发送POST请求并获取响应。响应包含一个字符串和一些cookies,现在我想将其转换为VB.net aspx代码,因此,由于跨域问题,我编写了此操作服务器端,但代码不起作用,所有响应都有空正文。我能请求一些帮助吗

JavaScript代码

   function goldprice_req(deltas, goldurl) {
(function ($) {
    $.ajax('Some URL?_t=' + timenow , {
        headers: { "Content-type": "application/x-www-form-urlencoded" },
        data: { 'id': goldurl },
        cache: false,
        type: "POST",
        dataType: "json",
        contentType: "application/json",
        success: goldpriceSuccess,
        error: function (xhr, status, error) {
            console.log(status);
            failure++;
            setTimeout(function () { goldprice_req(deltas, goldurl); }, 5000);
            if (failure >= 3) {
                if (!$('#ajaxfailure').html())
                    $('#content-top').prepend('<p id="ajaxfailure">Error.</p>');
                $('#ajaxfailure').show();
            }
        }
    });
})(jQuery);
}
    Dim postdt As String = ""
    Dim enc As UTF8Encoding
    Dim postdatabytes As Byte()
    Dim cookie As New CookieContainer()

  Dim request1 As HttpWebRequest = HttpWebRequest.Create("Some Url" & timenow )
    request1.CookieContainer = cookie
    request1.Method = "POST"
    enc = New System.Text.UTF8Encoding()
    postdatabytes = enc.GetBytes(postdt)
    request1.Headers("ContentType") = "application/x-www-form-urlencoded"

    request1.ContentLength = postdatabytes.Length

    Using stream = request1.GetRequestStream()
        stream.Write(postdatabytes, 0, postdatabytes.Length)
    End Using
    Dim response1 As HttpWebResponse = DirectCast(request1.GetResponse(), HttpWebResponse)
    For Each cok As Cookie In response1.Cookies
        cookie.Add(cok)
    Next
    Dim htmlbody As String

    Dim resstr As Stream = response1.GetResponseStream
    Dim reader As StreamReader = New StreamReader(resstr, True)


    While reader.Peek >= 0
        htmlbody = reader.ReadToEnd
    End While

    Response.Write(htmlbody)

    response1.Close()
    reader.Close()

我的代码出了什么问题?

您遇到了什么错误?它没有给出任何错误,但响应为nothing或empty。您的代码中有两个问题:1。您希望返回cookie,但只返回HTML。2.即使您希望从返回的cookie中获得信息,您也不能只通过Response.Write来完成。对不起,我可以请您描述一下代码的问题吗?请检查:我认为您可能需要更改代码体系结构。通过使一个web服务可由AJAX调用,该web方法将返回cookies。