WebRequestSugar ws = new WebRequestSugar();            //可選參數            //ws.SetAccept            //ws.SetContentType            //ws.SetCookie            //ws.SetTimeOut            //ws.SetIsAllowAutoRedirect            //GET            var html= ws.HttpGet("http://localhost:24587/Http/HttpTest.aspx");            //帶參GET            var paras=new Dictionary<string, string>() ;            paras.Add("name","skx");            paras.Add("id", "100");            var html2 = ws.HttpGet("http://localhost:24587/Http/HttpTest.aspx",paras );            //POST            var postHtml= ws.HttpPost("http://localhost:24587/Http/HttpTest.aspx", paras);            //post and file            var postHtml2 = ws.HttpUploadFile("http://localhost:24587/Http/HttpTest.aspx", "文件地址可以是數組", paras);

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Net;using System.IO;using System.Text.RegularExPRessions;using System.Security.Cryptography.X509Certificates;using System.Net.Security;using System.Collections.Specialized;namespace SyntacticSugar{    /// <summary>    /// ** 描述：模擬HTTP POST GET請求并獲取數據    /// ** 創始時間：2015-11-24    /// ** 修改時間：-    /// ** 作者：sunkaixuan    /// ** 使用說明：    /// </summary>    public class WebRequestSugar    {        /// <summary>        /// 設置cookie        /// </summary>        private CookieContainer cookie;        /// <summary>        /// 是否允許重定向        /// </summary>        private bool allowAutoRedirect = true;        /// <summary>        /// contentType        /// </summary>        private string contentType = "application/x-www-form-urlencoded";        /// <summary>        /// accept        /// </summary>        private string accept = "*/*";        /// <summary>        /// 過期時間        /// </summary>        private int time = 5000;        /// <summary>        /// 設置請求過期時間（單位：毫秒）（默認：5000）        /// </summary>        /// <param name="time"></param>        public void SetTimeOut(int time)        {            this.time = time;        }        /// <summary>        /// 設置accept(默認:*/*)        /// </summary>        /// <param name="accept"></param>        public void SetAccept(string accept)        {            this.accept = accept;        }        /// <summary>        /// 設置contentType(默認:application/x-www-form-urlencoded)        /// </summary>        /// <param name="contentType"></param>        public void SetContentType(string contentType)        {            this.contentType = contentType;        }        /// <summary>        /// 設置Cookie        /// </summary>        /// <param name="cookie"></param>        public void SetCookie(CookieContainer cookie)        {            this.cookie = cookie;        }        /// <summary>        /// 是否允許重定向(默認:true)        /// </summary>        /// <param name="allowAutoRedirect"></param>        public void SetIsAllowAutoRedirect(bool allowAutoRedirect)        {            this.allowAutoRedirect = allowAutoRedirect;        }        /// <summary>        /// post請求返回html        /// </summary>        /// <param name="url"></param>        /// <param name="postDataStr"></param>        /// <returns></returns>        public string HttpPost(string url, Dictionary<string, string> postdata)        {            string postDataStr = null;            if (postdata != null && postdata.Count > 0)            {                postDataStr = string.Join("&", postdata.Select(it => it.Key + "=" + it.Value));            }            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);            request.AllowAutoRedirect = allowAutoRedirect;            request.Method = "POST";            request.Accept = accept;            request.ContentType = this.contentType;            request.Timeout = time;            request.ContentLength = Encoding.UTF8.GetByteCount(postDataStr);            if (cookie != null)                request.CookieContainer = cookie; //cookie信息由CookieContainer自行維護            Stream myRequestStream = request.GetRequestStream();            StreamWriter myStreamWriter = new StreamWriter(myRequestStream, Encoding.GetEncoding("gb2312"));            myStreamWriter.Write(postDataStr);            myStreamWriter.Close();            HttpWebResponse response = null;            try            {                this.SetCertificatePolicy();                response = (HttpWebResponse)request.GetResponse();            }            catch (System.Exception ex)            {                throw ex;            }            //獲取重定向地址            //string url1 = response.Headers["Location"];            if (response != null)            {                Stream myResponseStream = response.GetResponseStream();                StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));                string retString = myStreamReader.ReadToEnd();                myStreamReader.Close();                myResponseStream.Close();                return retString;            }            else            {                return null; //post請求返回為空            }        }        /// <summary>        /// get請求獲取返回的html        /// </summary>        /// <param name="url">無參URL</param>        /// <param name="querydata">參數</param>        /// <returns></returns>        public string HttpGet(string url, Dictionary<string, string> querydata)        {            if (querydata != null && querydata.Count > 0)            {                url += "?" + string.Join("&", querydata.Select(it => it.Key + "=" + it.Value));            }            return HttpGet(url);        }        /// <summary>        /// get請求獲取返回的html        /// </summary>        /// <param name="url"></param>        /// <returns></returns>        public string HttpGet(string url)        {            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);            request.Method = "GET";            request.ContentType = "text/html;charset=UTF-8";            request.CookieContainer = cookie;            request.Accept = this.accept;            request.Timeout = time;            this.SetCertificatePolicy();            HttpWebResponse response = (HttpWebResponse)request.GetResponse();            // response.Cookies = cookie.GetCookies(response.ResponseUri);            Stream myResponseStream = response.GetResponseStream();            StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));            string retString = myStreamReader.ReadToEnd();            myStreamReader.Close();            myResponseStream.Close();            return retString;        }        /// <summary>        /// POST文件        /// </summary>        /// <param name="url"></param>        /// <param name="file">文件路徑</param>        /// <param name="postdata"></param>        /// <returns></returns>        public string HttpUploadFile(string url, string file, Dictionary<string, string> postdata)        {            return HttpUploadFile(url, file, postdata, Encoding.UTF8);        }        /// <summary>        /// POST文件        /// </summary>        /// <param name="url"></param>        /// <param name="file">文件路徑</param>        /// <param name="postdata">參數</param>        /// <param name="encoding"></param>        /// <returns></returns>        public string HttpUploadFile(string url, string file, Dictionary<string, string> postdata, Encoding encoding)        {            return HttpUploadFile(url, new string[] { file }, postdata, encoding);        }        /// <summary>        /// POST文件        /// </summary>        /// <param name="url"></param>        /// <param name="files">文件路徑</param>        /// <param name="postdata">參數</param>        /// <returns></returns>        public string HttpUploadFile(string url, string[] files, Dictionary<string, string> postdata)        {            return HttpUploadFile(url, files, postdata, Encoding.UTF8);        }        /// <summary>        /// POST文件        /// </summary>        /// <param name="url"></param>        /// <param name="files">文件路徑</param>        /// <param name="postdata">參數</param>        /// <param name="encoding"></param>        /// <returns></returns>        public  string HttpUploadFile(string url, string[] files, Dictionary<string, string> postdata, Encoding encoding)        {            string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");            byte[] boundarybytes = Encoding.ASCII.GetBytes("/r/n--" + boundary + "/r/n");            byte[] endbytes = Encoding.ASCII.GetBytes("/r/n--" + boundary + "--/r/n");            //1.HttpWebRequest            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);            request.ContentType = "multipart/form-data; boundary=" + boundary;            request.Method = "POST";            request.KeepAlive = true;            request.Accept = this.accept;            request.Timeout = this.time;            request.AllowAutoRedirect = this.allowAutoRedirect;            if (cookie != null)                request.CookieContainer = cookie;            request.Credentials = CredentialCache.DefaultCredentials;            using (Stream stream = request.GetRequestStream())            {                //1.1 key/value                string formdataTemplate = "Content-Disposition: form-data; name=/"{0}/"/r/n/r/n{1}";                if (postdata != null)                {                    foreach (string key in postdata.Keys)                    {                        stream.Write(boundarybytes, 0, boundarybytes.Length);                        string formitem = string.Format(formdataTemplate, key, postdata[key]);                        byte[] formitembytes = encoding.GetBytes(formitem);                        stream.Write(formitembytes, 0, formitembytes.Length);                    }                }                //1.2 file                string headerTemplate = "Content-Disposition: form-data; name=/"{0}/"; filename=/"{1}/"/r/nContent-Type: application/octet-stream/r/n/r/n";                byte[] buffer = new byte[4096];                int bytesRead = 0;                for (int i = 0; i < files.Length; i++)                {                    stream.Write(boundarybytes, 0, boundarybytes.Length);                    string header = string.Format(headerTemplate, "file" + i, Path.GetFileName(files[i]));                    byte[] headerbytes = encoding.GetBytes(header);                    stream.Write(headerbytes, 0, headerbytes.Length);                    using (FileStream fileStream = new FileStream(files[i], FileMode.Open, Fileaccess.Read))                    {                        while ((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)                        {                            stream.Write(buffer, 0, bytesRead);                        }                    }                }                //1.3 form end                stream.Write(endbytes, 0, endbytes.Length);            }            //2.WebResponse            HttpWebResponse response = (HttpWebResponse)request.GetResponse();            using (StreamReader stream = new StreamReader(response.GetResponseStream()))            {                return stream.ReadToEnd();            }        }        /// <summary>        /// 獲得響應中的圖像        /// </summary>        /// <param name="url"></param>        /// <returns></returns>        public Stream GetResponseImage(string url)        {            Stream resst = null;            try            {                HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);                req.KeepAlive = true;                req.Method = "GET";                req.AllowAutoRedirect = allowAutoRedirect;                req.CookieContainer = cookie;                req.ContentType = this.contentType;                req.Accept = this.accept;                req.Timeout = time;                Encoding myEncoding = Encoding.GetEncoding("UTF-8");                this.SetCertificatePolicy();                HttpWebResponse res = (HttpWebResponse)req.GetResponse();                resst = res.GetResponseStream();                return resst;            }            catch            {                return null;            }        }        /// <summary>        /// 正則獲取匹配的第一個值        /// </summary>        /// <param name="html"></param>        /// <param name="pattern"></param>        /// <returns></returns>        private string GetStringByRegex(string html, string pattern)        {            Regex re = new Regex(pattern, RegexOptions.IgnoreCase);            MatchCollection matchs = re.Matches(html);            if (matchs.Count > 0)            {                return matchs[0].Groups[1].Value;            }            else                return "";        }        /// <summary>        /// 正則驗證返回的response是否正確        /// </summary>        /// <param name="html"></param>        /// <param name="pattern"></param>        /// <returns></returns>        private bool VerifyResponseHtml(string html, string pattern)        {            Regex re = new Regex(pattern);            return re.IsMatch(html);        }        //注冊證書驗證回調事件，在請求之前注冊        private void SetCertificatePolicy()        {            ServicePointManager.ServerCertificateValidationCallback                       += RemoteCertificateValidate;        }        /// <summary>          /// 遠程證書驗證，固定返回true         /// </summary>          private static bool RemoteCertificateValidate(object sender, X509Certificate cert,            X509Chain chain, SslPolicyErrors error)        {            return true;        }    }}