• c# HttpWebRequest https的一些处理


    先看下请求方法

     1   public string Get_Request(
     2             string strUrl,
     3             CookieContainer _cookie = null,
     4             string strHost = "",
     5             string strRefer = "",
     6             string strOrigin = "",
     7             bool blnHttps = false,
     8             Dictionary<string, string> lstHeads = null,
     9             bool blnKeepAlive=false,
    10             string strEncoding = "utf-8",
    11             string strContentType = "",
    12             string strCertFile="",
    13             string strAccept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
    14             string strUserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36",
    15             bool blnAllowAutoRedirect = true,
    16             int intTimeout = 1000 * 30)
    17         {
    18             HttpWebRequest request;
    19             HttpWebResponse response;
    20             request = (HttpWebRequest)WebRequest.Create(strUrl);
    21             if (blnHttps)
    22             {
    23                 ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);  
    24                 request.ProtocolVersion = HttpVersion.Version10;
    25 
    26                 ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
    27 
    28             }           
    29             request.KeepAlive = blnKeepAlive;
    30             request.Accept = strAccept;
    31             request.Timeout = intTimeout;
    32             request.Method = "GET";
    33             request.Credentials = CredentialCache.DefaultCredentials;
    34             request.UserAgent = strUserAgent;
    35             request.AllowAutoRedirect = blnAllowAutoRedirect;
    36             request.Proxy = null;
    37             if (!string.IsNullOrEmpty(strContentType))
    38             {
    39                 request.ContentType = strContentType;
    40             }
    41             if (_cookie != null)
    42             {
    43                 request.CookieContainer = _cookie;
    44             }
    45             if (!string.IsNullOrEmpty(strHost))
    46             {
    47                 request.Host = strHost;
    48             }
    49             if (!string.IsNullOrEmpty(strRefer))
    50             {
    51                 request.Referer = strRefer;
    52             }
    53             if (!string.IsNullOrEmpty(strOrigin))
    54             {
    55                 request.Headers.Add("Origin", strOrigin);
    56             }
    57             if (lstHeads != null && lstHeads.Count > 0)
    58             {
    59                 foreach (var item in lstHeads)
    60                 {
    61                     request.Headers.Add(item.Key, item.Value);
    62                 }
    63             }
    64             response = (HttpWebResponse)request.GetResponse();
    65             var sr = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(strEncoding));
    66             string strResult = sr.ReadToEnd();
    67             sr.Close();
    68             request.Abort();
    69             response.Close();
    70             return strResult;
    71 
    72         }
    73         private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
    74         {
    75             return true; //总是接受     
    76         }  
    if (blnHttps)内的代码就是针对https所做的处理

    需要注意的是

    1、当使用https请求的时候需要确定加密协议是哪个,这个可以通过火狐查看到,如下图

    2、只有Framework4.5及以上才支持1.1和1.2协议

    如果仍有什么不明白的地方请留言吧

  • 相关阅读:
    后缀数组模板
    UVALive
    蓝桥杯 拿糖果
    蓝桥杯 矩阵乘法(区间DP)
    51nod 矩阵乘法
    13.boost有向无向图邻接表表示
    12.boost有向图无向图(矩阵法)
    11.使用boostregex遭遇无法打开libboost_regex-vc120-mt-sgd-1_62.lib的问题
    10.ref regex unordered_set smartpoint
    9.variant move function change_cast
  • 原文地址:https://www.cnblogs.com/bfyx/p/7077173.html
Copyright © 2020-2023  润新知