多个 POST 请求同一个会话 C#

Question

我正在编写一个脚本，该脚本可以在网站上发布，将商品添加到购物车中，然后结帐。 我设法添加到购物车，但是当我想结帐时，购物车中好像什么都没有。 如何使用相同的会话添加到购物车/结账？

这是我的代码：

var request = (HttpWebRequest)WebRequest.Create(url_add_to_cart);
var postData = "utf8=✓";
postData += "style=" + data_style_id;
postData += "size=" + size;
postData += "commit=add to basket";
var data = Encoding.ASCII.GetBytes(postData);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
using (var stream = request.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
var response = (HttpWebResponse)request.GetResponse();
var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
//checkout----------------
var url_checkout = link_general + "/checkout.json";
var request2 = (HttpWebRequest)WebRequest.Create(url_checkout);
var postData2 = "utf8=✓";
postData2 += "order[billing_name]=toto";
postData2 += "order[email]=[e-mail]";
var data2 = Encoding.ASCII.GetBytes(postData2);
request2.Method = "POST";
request2.ContentType = "application/x-www-form-urlencoded";
request2.ContentLength = data2.Length;
using (var stream2 = request2.GetRequestStream())
{
stream2.Write(data2, 0, data2.Length);
}
var response2 = (HttpWebResponse)request2.GetResponse();
var responseString2 = new StreamReader(response2.GetResponseStream()).ReadToEnd();

Console.WriteLine(responseString2);

当我执行结帐请求时，它不起作用并获取网站 html 主页的源代码

非常感谢您的回答

Answer 1

您需要将request.CookieContainer存储在局部变量中，每次需要发送新请求时，请再次设置它

private CookieContainer cookieContainer;
private void SendRequest()
{
HttpWebRequest request = (HttpWebRequest) WebRequest.Create(url);
request.ContentType = "application/x-www-form-urlencoded";
request.Method = "POST";
if (this.cookieContainer != null)                
request.CookieContainer = this.cookieContainer;                
else                
request.CookieContainer = new CookieContainer();                
...
...
...
this.cookieContainer = request.CookieContainer;
}

并在postData行尾添加&