/// <summary> /// Get方式请求 /// </summary> /// <param name="getUrl"> 请求的URL </param> /// <param name="cookies"> 请求时带上的Cookies </param> /// <param name="timeOut"> 请求的超时时间 </param> /// <param name="userAgent"> 请求用户的Agent </param> /// <returns></returns> public static HttpWebResponse HttpGetResponse( string getUrl, int timeOut, string userAgent, string cookiestr) { // 检查URL if ( string .IsNullOrEmpty(getUrl)) { throw new ArgumentException( " 请求的URL不能为空！ " ); } // 创建Request HttpWebRequest request = WebRequest.Create(getUrl) as HttpWebRequest; // 请求方式为Get request.Method = " GET " ; request.UserAgent = DefaultUserAgent; // 用户的UserAgent if ( ! string .IsNullOrEmpty(userAgent)) { request.UserAgent = userAgent; } // 如果有超时设定 if (timeOut > 0 ) { request.Timeout = timeOut; } // 设置请求带上的Cookies if ( ! string .IsNullOrEmpty(cookiestr)) { request.Headers[ " Cookie " ] = cookiestr; } return request.GetResponse() as HttpWebResponse; } /// <summary> /// Post方式请求 /// </summary> /// <param name="postUrl"> post的URL </param> /// <param name="parameters"> post过去的参数 </param> /// <param name="timeout"> 请求超时时间 </param> /// <param name="userAgent"> 请的用户的agent </param> /// <param name="requestEncoding"> 请求的编码 </param> /// <param name="cookiestr"> 请求要带上的cookie </param> /// <returns></returns> public static HttpWebResponse HttpPostResponse( string postUrl, IDictionary < string , string > parameters, int ? timeout, string userAgent, Encoding requestEncoding, string cookiestr) { if ( string .IsNullOrEmpty(postUrl)) { throw new ArgumentNullException( " postUrl " ); } if (requestEncoding == null ) { throw new ArgumentNullException( " requestEncoding " ); } HttpWebRequest request = null ; // 如果是发送HTTPS请求 if (postUrl.StartsWith( " https " , StringComparison.OrdinalIgnoreCase)) { ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback((s, x, xc, e) => { return true ; }); request = WebRequest.Create(postUrl) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version11; } else { request = WebRequest.Create(postUrl) as HttpWebRequest; } request.Method = " POST " ; request.ContentType = " application/x-www-form-urlencoded " ; if ( ! string .IsNullOrEmpty(userAgent)) { request.UserAgent = userAgent; } else { request.UserAgent = DefaultUserAgent; } if (timeout.HasValue) { request.Timeout = timeout.Value; } if ( ! string .IsNullOrEmpty(cookiestr)) { request.Headers[ " Cookie " ] = cookiestr; } // 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, parameters[key]); } else { buffer.AppendFormat( " {0}={1} " , key, parameters[key]); } i ++ ; } byte [] data = requestEncoding.GetBytes(buffer.ToString()); using (Stream stream = request.GetRequestStream()) { stream.Write(data, 0 , data.Length); } } HttpWebResponse hr = request.GetResponse() as HttpWebResponse; return hr; }
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