程序访问的网址从http换成了https,安全性更高了,程序对网址的访问也要改一下
C#访问https地址实例如下
namespace ConsoleApp2 { public class Program { protected void LoginTest() { string url = "https://passport.test.com/passport/login"; Encoding encoding = Encoding.GetEncoding("utf-8"); IDictionary<string, string> parameters = new Dictionary<string, string>(); parameters.Add("username", "aaaaaa"); parameters.Add("rsapwd", "111111"); HttpWebResponse response = PostHttps(url, parameters, encoding); //打印返回值 Stream stream = response.GetResponseStream(); //获取响应的字符串流 StreamReader sr = new StreamReader(stream); //创建一个stream读取流 string html = sr.ReadToEnd(); //从头读到尾,放到字符串html Console.WriteLine(html); } public static void Main() { Program pro = new Program(); pro.LoginTest(); } private static readonly string DefaultUserAgent = "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36"; private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; //总是接受 } public static HttpWebResponse PostHttps(string url, IDictionary<string, string> parameters, Encoding charset) { HttpWebRequest request = null; CookieContainer cookie = new CookieContainer(); //HTTPSQ请求 ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult); request = WebRequest.Create(url) as HttpWebRequest; request.CookieContainer = cookie; request.ProtocolVersion = HttpVersion.Version11; request.Method = "POST"; request.ContentType = "application/x-www-form-urlencoded"; request.UserAgent = DefaultUserAgent; request.KeepAlive = true; request.Headers["Accept-Language"] = "zh-CN,zh;q=0.9"; //request.Headers["Cookie"] = "username=aaaaaa; Language=zh_CN"; //如果需要POST数据 if (!(parameters == null || parameters.Count == 0)) { StringBuilder buffer = new StringBuilder(); int i = 0; foreach (string key in parameters.Keys) { if (i > 0) { buffer.AppendFormat("&{0}={1}", key, WebUtility.UrlEncode(parameters[key])); } else { buffer.AppendFormat("{0}={1}", key, WebUtility.UrlEncode(parameters[key])); } i++; } byte[] data = charset.GetBytes(buffer.ToString()); using (Stream stream = request.GetRequestStream()) { stream.Write(data, 0, data.Length); } } return (HttpWebResponse)request.GetResponse(); } } }