[英]Why I can't get request with HttpWebRequest?
電話號碼是“保護”,我必須單擊“顯示號碼”以獲取電話請求。 在發送請求之前,我必須從“顯示編號”按鈕獲取源data-id =“ 805c74a74f3ea9fe6db5da90d722”並發送帶有此令牌的POST作為_rp_offerID。
正確答案是:
<span><strong><a href="tel:516000551"> 516 000 551</a></strong></span>
我的答案是:
?
我完整的代碼:
HttpWebRequest getRequest = (HttpWebRequest)WebRequest.Create("https://sprzedajemy.pl/oferta-dane.telefon");
getRequest.Method = "POST";
getRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.116 Safari/537.36";
getRequest.ContentType = "application/x-www-form-urlencoded";
getRequest.Host = "sprzedajemy.pl";
getRequest.Referer = url;
getRequest.Headers.Add("accept-encoding", "gzip, deflate, br");
getRequest.Headers.Add("accept-language", "pl,en-US;q=0.9,en;q=0.8,ru;q=0.7");
getRequest.Headers.Add("origin", "https://sprzedajemy.pl");
getRequest.Headers.Add("X-Requested-With", "XMLHttpRequest");
var postData = "_rp_offerID=" + itemId;
var data = Encoding.ASCII.GetBytes(postData);
getRequest.ContentLength = data.Length;
using (var stream = getRequest.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
var httpResponseP = (HttpWebResponse)getRequest.GetResponse();
var streamReaderP = new StreamReader(httpResponseP.GetResponseStream());
string strPhone = streamReaderP.ReadToEnd();
Console.WriteLine(strPhone);
我不知道我的代碼有什么問題...
如果我將REST客戶端用於Chrome,請執行以下操作:
POST https://sprzedajemy.pl/oferta-dane.telefon User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/27.0.1453.116 Safari/537.36 Content-Type: application/x-www-form-urlencoded Referer: http://sprzedajemy.pl/doskonale-dla-pary-planujacej-poszerzenie-rodziny-sprawdz-warszawa-2-1b8e55-nr57347155 accept-encoding: gzip, deflate, br accept-language: pl,en-US;q=0.9,en;q=0.8,ru;q=0.7 origin: https://sprzedajemy.pl X-Requested-With: XMLHttpRequest Host: sprzedajemy.pl Content-Length: 48
主體形式數據: _rp_offerID=80e158b0281e04a2102fd7bce6eba0cd3833
答案正確
為什么不使用HttpClient? 這要容易得多! 檢查以下示例:
using System;
using System.Net.Http;
using System.Text;
namespace httpClient
{
class Program
{
static void Main(string[] args)
{
using (var client = new HttpClient() {BaseAddress = new Uri("https://sprzedajemy.pl")})
{
client.DefaultRequestHeaders.Add("accept-encoding", "gzip, deflate, br");
client.DefaultRequestHeaders.Add("accept-language", "pl,en-US;q=0.9,en;q=0.8,ru;q=0.7");
client.DefaultRequestHeaders.Add("origin", "https://sprzedajemy.pl");
client.DefaultRequestHeaders.Add("X-Requested-With", "XMLHttpRequest");
var postData = "_rp_offerID=80e158b0281e04a2102fd7bce6eba0cd3833";
var stringContent = new StringContent(postData, Encoding.Default, "application/x-www-form-urlencoded");
var result = client.PostAsync("oferta-dane.telefon", stringContent).GetAwaiter().GetResult();
}
}
}
}
我已經測試了這段代碼,返回的是200
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