/// <summary> /// 设置Post数据 /// </summary> /// <param name="request"></param> /// <param name="requestConfig"></param> private void SetPostData(HttpWebRequest request, HttpRequestConfig requestConfig) { //验证在得到结果时是否有传入数据 if (requestConfig.Method.ToLower().Equals("post")) { byte[] buffer = null; //写入字符串 if (requestConfig.PostDataType == PostDataType.String && !string.IsNullOrWhiteSpace(requestConfig.PostData)) { buffer = requestConfig.RequestEncoding.GetBytes(requestConfig.PostData); } //写入Byte类型 else if (requestConfig.PostDataType == PostDataType.Byte && requestConfig.PostDataByte != null && requestConfig.PostDataByte.Length > 0) { //验证在得到结果时是否有传入数据 buffer = requestConfig.PostDataByte; } //写入文件 else if (requestConfig.PostDataType == PostDataType.FilePath && !string.IsNullOrWhiteSpace(requestConfig.PostData)) { using (StreamReader r = new StreamReader(requestConfig.PostData, requestConfig.RequestEncoding)) { buffer = requestConfig.RequestEncoding.GetBytes(r.ReadToEnd()); r.Close(); } } if (buffer != null) { request.ContentLength = buffer.Length; request.GetRequestStream().Write(buffer, 0, buffer.Length); } } }
/// <summary> /// 设置代理 /// </summary> /// <param name="request"></param> /// <param name="httpRequestConfig"></param> private void SetProxy(HttpWebRequest request, HttpRequestConfig requestConfig) { if (!string.IsNullOrWhiteSpace(requestConfig.ProxyServerIPAndPort)) { //设置代理服务器 if (requestConfig.ProxyServerIPAndPort.Contains(":")) { string[] plist = requestConfig.ProxyServerIPAndPort.Split(':'); WebProxy myProxy = new WebProxy(plist[0].Trim(), Convert.ToInt32(plist[1].Trim())); myProxy.Credentials = new NetworkCredential(requestConfig.ProxyServerUserName, requestConfig.ProxyServerPassword); //设置代理 request.Proxy = myProxy; } else { WebProxy myProxy = new WebProxy(requestConfig.ProxyServerIPAndPort, false); myProxy.Credentials = new NetworkCredential(requestConfig.ProxyServerUserName, requestConfig.ProxyServerPassword); //设置代理 request.Proxy = myProxy; } } }
/// <summary> /// 设置 Header /// </summary> /// <param name="request"></param> /// <param name="requestConfig"></param> private void SetHeader(HttpWebRequest request, HttpRequestConfig requestConfig) { if (requestConfig.Header != null && requestConfig.Header.Count > 0) { foreach (string key in requestConfig.Header.AllKeys) { request.Headers.Add(key, requestConfig.Header[key]); } } if (!request.Headers.AllKeys.Contains("Cache-Control")) { request.Headers.Add("Cache-Control", "no-cache"); } if (!request.Headers.AllKeys.Contains("UA-CPU")) { request.Headers.Add("UA-CPU", "x86"); } if (!request.Headers.AllKeys.Contains("Accept-Language")) { request.Headers.Add("Accept-Language", "zh-cn"); } }
/// <summary> /// 设置Cookie /// </summary> /// <param name="request"></param> /// <param name="requestConfig"></param> private void SetCookie(HttpWebRequest request, HttpRequestConfig requestConfig) { if (!string.IsNullOrWhiteSpace(requestConfig.Cookie)) { request.Headers[HttpRequestHeader.Cookie] = requestConfig.Cookie; } //设置CookieCollection if (requestConfig.CookieCollection != null && requestConfig.CookieCollection.Count > 0) { request.CookieContainer = new CookieContainer(); request.CookieContainer.Add(requestConfig.CookieCollection); } }
/// <summary> /// 创建 Request /// </summary> /// <param name="requestConfig"></param> /// <returns></returns> private HttpWebRequest CreateRequest(HttpRequestConfig requestConfig) { //这一句一定要写在创建连接的前面。使用回调的方法进行证书验证。 ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult); HttpWebRequest request = null; //设置证书 if (!string.IsNullOrWhiteSpace(requestConfig.CertificatePath)) { //初始化对像,并设置请求的URL地址 request = (HttpWebRequest)WebRequest.Create(requestConfig.Url); //设置X509Certificate证书 if (requestConfig.CertificateCollection != null && requestConfig.CertificateCollection.Count > 0) { foreach (X509Certificate c in requestConfig.CertificateCollection) { request.ClientCertificates.Add(c); } } //将证书添加到请求里 request.ClientCertificates.Add(new X509Certificate(requestConfig.CertificatePath)); } else { //初始化对像,并设置请求的URL地址 request = (HttpWebRequest)WebRequest.Create(requestConfig.Url); //设置X509Certificate证书 if (requestConfig.CertificateCollection != null && requestConfig.CertificateCollection.Count > 0) { foreach (X509Certificate c in requestConfig.CertificateCollection) { request.ClientCertificates.Add(c); } } } request.ServicePoint.Expect100Continue = false; request.Method = requestConfig.Method;//请求方式Get或者Post request.Timeout = 100000;//请求超时时间 request.KeepAlive = true;//长连接 request.Accept = requestConfig.Accept;//Accept request.ContentType = requestConfig.ContentType;//ContentType返回类型 request.UserAgent = requestConfig.UserAgent;//UserAgent客户端的访问类型,包括浏览器版本和操作系统信息 request.Credentials = CredentialCache.DefaultCredentials;//设置请求的身份验证信息 request.Referer = requestConfig.Referer;//来源地址 return request; }
/// <summary> /// Http请求 /// </summary> /// <param name="requestConfig"></param> /// <returns></returns> public HttpResult GetHtml(HttpRequestConfig requestConfig) { //创建Request HttpWebRequest request = CreateRequest(requestConfig); //设置Header SetHeader(request, requestConfig); //设置代理 SetProxy(request, requestConfig); //设置Cookie SetCookie(request, requestConfig); //设置Post请求数据 SetPostData(request, requestConfig); HttpResult result = new HttpResult(); using (WebResponse response = request.GetResponse()) { HttpWebResponse httpResponse = response as HttpWebResponse; if (httpResponse != null) { result.Headers = httpResponse.Headers; result.StatusCode = httpResponse.StatusCode; result.StatusDescription = httpResponse.StatusDescription; if (httpResponse.Cookies != null) { result.CookieCollection = httpResponse.Cookies; } if (httpResponse.Headers["set-cookie"] != null) { result.Cookie = httpResponse.Headers["set-cookie"]; } } //返回的流 using (Stream responseStream = response.GetResponseStream()) { //将返回流转成Byte[] if (responseStream != null) { using (MemoryStream _stream = new MemoryStream()) { //开始读取流并设置编码方式 responseStream.CopyTo(_stream); //获取Byte result.ResultByte = _stream.ToArray(); } } else { result.ResultByte = null; } } } //将转换的Byte[]转成String if (requestConfig.ResultType == ResultType.String && result.ResultByte != null) { Encoding encoding = requestConfig.ResponseEncoding; //从这里开始我们要无视编码了 if (encoding == null) { Match meta = Regex.Match(Encoding.Default.GetString(result.ResultByte), "<meta([^<]*)charset=([^<]*)[\"']", RegexOptions.IgnoreCase); string c = (meta.Groups.Count > 1) ? meta.Groups[2].Value.ToLower().Trim() : string.Empty; if (c.Length > 2) { try { if (c.IndexOf(" ") > 0) c = c.Substring(0, c.IndexOf(" ")); encoding = Encoding.GetEncoding(c.Replace("\"", "").Replace("'", "").Replace(";", "").Replace("iso-8859-1", "gbk").Trim()); } catch { encoding = Encoding.Default; } } else { encoding = Encoding.Default; } } //得到返回的HTML result.ResultString = encoding.GetString(result.ResultByte); } else { //得到返回的HTML result.ResultString = ""; } return result; }
/// <summary> /// Http请求 /// </summary> /// <param name="url"></param> /// <param name="method"></param> /// <param name="cookieCollection"></param> /// <param name="referer"></param> /// <returns></returns> public HttpResult GetHtml(string url, string method = "GET", CookieCollection cookieCollection = null, string referer = "") { HttpRequestConfig requestConfig = new HttpRequestConfig(); requestConfig.Url = url; requestConfig.Method = method; requestConfig.CookieCollection = cookieCollection; requestConfig.Referer = referer; HttpResult result = GetHtml(requestConfig); return result; }