c# - WebRequest 类的 .Create(url) 方法不起作用

Question

问题

当我使用类的.Create(url)方法时WebRequest，它不起作用。

该.Create(url)方法未被 IDE 识别并标记为红色，因为该方法不存在。我现在需要做什么来解决这个问题。

问题的 GIF

源代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.IO;

namespace WebRequest
{
    class HttpMethods
    {


        public static string Get(string url, string referer, ref CookieContainer cookies)
        {
            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            req.Method = "GET";
            req.CookieContainer = cookies;
            req.UserAgent = "";
            req.Referer = referer;

            HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
            cookies.Add(resp.Cookies);

            string pageSrc;
            using (StreamReader sr = new StreamReader(resp.GetResponseStream()))
            {
                pageSrc = sr.ReadToEnd();
            }
            return pageSrc;
        }

        public static bool Post(string url, string postData, string referer, CookieContainer cookies)
        {
            string key = "Invalid credentials or user not activated!";

            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            req.Method = "POST";
            req.CookieContainer = cookies;
            req.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36";
            req.Referer = referer;
            req.ContentType = "application/x-www-form-urlencoded";
            req.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8";

            Stream postStream = req.GetRequestStream();
            byte[] postBytes = Encoding.ASCII.GetBytes(postData);
            postStream.Write(postBytes, 0, postBytes.Length);
            postStream.Dispose();

            HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
            cookies.Add(resp.Cookies);

            StreamReader sr = new StreamReader(resp.GetResponseStream());
            string pageSrc = sr.ReadToEnd();
            sr.Dispose();
            Console.WriteLine(pageSrc);
            return (!pageSrc.Contains(key));
        }
    }
}

标签： c#httpmethodshttpsrequest