[C#HttpHelper]類1.4正式版教程與升級報告

   [C#HttpHelper]類1.4正式版教程與升級報告

導讀

1.升級報告

2.HttpHelper1.4正式版下載

3.HttpHelper類使用方法，

4.最簡單的Post與Get的寫法

5.HttpHelper設置Header參考的方法

6.HttpHelper獲取圖片的方式

7.二次或屢次使用Cookie的方式

8.使用URL編碼的方式
                    
1.升級報告

---

1.方法 中不要使用類new object(){name=""};這樣的方法，由於net2.0不支持
2.  if (response.StatusCode != null)無效，一直爲True  ReEnter反映            

if (response.StatusCode != null)無效，一直爲True  ReEnter反映
                {
                    result.StatusCode = response.StatusCode;
                    result.StatusDescription = response.StatusDescription;
                }

解決辦法

if (response != null)無效，一直爲True  ReEnter反映
                {
                    result.StatusCode = response.StatusCode;
                    result.StatusDescription = response.StatusDescription;
                }無效，一直爲True  ReEnter反映

 

3.提出的問題
   添加屬性ProtocolVersion 獲取或設置用於請求的 HTTP 版本。返回結果:用於請求的 HTTP 版本。默認爲 System.Net.HttpVersion.Version11。

4. 解決的問題須要添加屬性
添加屬性Expect100Continue獲取或設置一個 System.Boolean 值，該值肯定是否使用 100-Continue 行爲。若是 POST 請求須要 100-Continue 響應，則爲 true；不然爲 false。默認值爲 true。

4.多個證書添加的問題
添加屬性ClentCertificates 能夠添加多個證書文件

5.ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;設置安全協議的版本。
增長到項目中，可直接設置屬性 SecurityProtocolType
6. 

Match meta = Regex.Match(Encoding.Default.GetString(RawResponse), "<meta([^<]*)charset=([^<]*)[\"']", RegexOptions.IgnoreCase);
                        string charter = (meta.Groups.Count > 2) ? meta.Groups[2].Value.ToLower() : string.Empty;

應該是meta.Groups.Count > 1
7.post數據添加自由設置編碼 只要設置屬性HttpItem.PostEncoding就能夠了
8.服務器提交了協議衝突. Section=ResponseHeader Detail=標頭名稱無效
9.增長Url編碼與解碼方法

        /// <summary>
       /// 根據指定的編碼對RUl進行解碼
       /// </summary>
       /// <param name="text">要解碼的字符串</param>
       /// <param name="encoding">要進行解碼的編碼方式</param>
       /// <returns></returns>
        public static string URLDecode(string text, Encoding encoding)
        {
            return HttpUtility.UrlDecode(text, encoding);
        }
        /// <summary>
        /// 根據指定的編碼對URL進行編碼
        /// </summary>
        /// <param name="text">要編碼的URL</param>
        /// <param name="encoding">要進行編碼的編碼方式</param>
        /// <returns></returns>
        public static string URLEncode(string text, Encoding encoding)
        {
            return HttpUtility.UrlEncode(text, encoding);
       ｝
 

2.HttpHelper1.4正式版下載

---

下載地址：http://www.sufeinet.com/thread-3-1-1.html
在線測試工具：http://www.sufeinet.com/thread-3690-1-1.html
專用Cookie分析類：http://www.sufeinet.com/thread-2382-1-1.html
要學習更多關於C# Http的請是看個人文章 C# HttpWebRequest 絕技
代碼以下所示

/// <summary>
/// 類說明：HttpHelper類，用來實現Http訪問，Post或者Get方式的，直接訪問，帶Cookie的，帶證書的等方式，能夠設置代理
/// 重要提示：請不要自行修改本類，若是由於你本身修改後將沒法升級到新版本。若是確實有什麼問題請到官方網站提建議，
/// 咱們必定會及時修改
/// 編碼日期：2011-09-20
/// 編 碼 人：蘇飛
/// 聯繫方式：361983679  
/// 官方網址：http://www.sufeinet.com/thread-3-1-1.html
/// 修改日期：2013-07-02
/// </summary>
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.IO;
using System.Text.RegularExpressions;
using System.IO.Compression;
using System.Security.Cryptography.X509Certificates;
using System.Net.Security;
using System.Web;

namespace DotNet.Utilities
{
    /// <summary>
    /// Http鏈接操做幫助類
    /// </summary>
    public class HttpHelper
    {
        #region 預約義方法或者變動
        //默認的編碼
        private Encoding encoding = Encoding.Default;
        //Post數據編碼
        private Encoding postencoding = Encoding.Default;
        //HttpWebRequest對象用來發起請求
        private HttpWebRequest request = null;
        //獲取影響流的數據對象
        private HttpWebResponse response = null;
        /// <summary>
        /// 根據相傳入的數據，獲得相應頁面數據
        /// </summary>
        /// <param name="objhttpitem">參數類對象</param>
        /// <returns>返回HttpResult類型</returns>
        public HttpResult GetHtml(HttpItem objhttpitem)
        {
            //返回參數
            HttpResult result = new HttpResult();
            try
            {
                //準備參數
                SetRequest(objhttpitem);
            }
            catch (Exception ex)
            {
                result = new HttpResult()
                {
                    Cookie = "",
                    Header = null,
                    Html = ex.Message,
                    StatusDescription = "配置參數時出錯：" + ex.Message
                };
                return result;
            }
            try
            {
                #region 獲得請求的response
                using (response = (HttpWebResponse)request.GetResponse())
                {
                    result.StatusCode = response.StatusCode;
                    result.StatusDescription = response.StatusDescription;
                    result.Header = response.Headers;
                    if (response.Cookies != null) result.CookieCollection = response.Cookies;
                    if (response.Headers["set-cookie"] != null) result.Cookie = response.Headers["set-cookie"];
                    MemoryStream _stream = new MemoryStream();
                    //GZIIP處理
                    if (response.ContentEncoding != null && response.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase))
                    {
                        //開始讀取流並設置編碼方式
                        //new GZipStream(response.GetResponseStream(), CompressionMode.Decompress).CopyTo(_stream, 10240);
                        //.net4.0如下寫法
                        _stream = GetMemoryStream(new GZipStream(response.GetResponseStream(), CompressionMode.Decompress));
                    }
                    else
                    {
                        //開始讀取流並設置編碼方式
                        //response.GetResponseStream().CopyTo(_stream, 10240);
                        //.net4.0如下寫法
                        _stream = GetMemoryStream(response.GetResponseStream());
                    }
                    //獲取Byte
                    byte[] RawResponse = _stream.ToArray();
                    _stream.Close();
                    //是否返回Byte類型數據
                    if (objhttpitem.ResultType == ResultType.Byte) result.ResultByte = RawResponse;
                    //從這裏開始咱們要無視編碼了
                    if (encoding == null)
                    {
                        Match meta = Regex.Match(Encoding.Default.GetString(RawResponse), "<meta([^<]*)charset=([^<]*)[\"']", RegexOptions.IgnoreCase);
                        string charter = (meta.Groups.Count > 1) ? meta.Groups[2].Value.ToLower() : string.Empty;
                        if (charter.Length > 2)
                            encoding = Encoding.GetEncoding(charter.Trim().Replace("\"", "").Replace("'", "").Replace(";", "").Replace("iso-8859-1", "gbk"));
                        else
                        {
                            if (string.IsNullOrEmpty(response.CharacterSet)) encoding = Encoding.UTF8;
                            else encoding = Encoding.GetEncoding(response.CharacterSet);
                        }
                    }
                    //獲得返回的HTML
                    result.Html = encoding.GetString(RawResponse);
                }
                #endregion
            }
            catch (WebException ex)
            {
                //這裏是在發生異常時返回的錯誤信息
                response = (HttpWebResponse)ex.Response;
                result.Html = ex.Message;
                if (response != null)
                {
                    result.StatusCode = response.StatusCode;
                    result.StatusDescription = response.StatusDescription;
                }
            }
            catch (Exception ex)
            {
                result.Html = ex.Message;
            }
            if (objhttpitem.IsToLower) result.Html = result.Html.ToLower();
            return result;
        }
        /// <summary>
        /// 4.0如下.net版本取數據使用
        /// </summary>
        /// <param name="streamResponse">流</param>
        private static MemoryStream GetMemoryStream(Stream streamResponse)
        {
            MemoryStream _stream = new MemoryStream();
            int Length = 256;
            Byte[] buffer = new Byte[Length];
            int bytesRead = streamResponse.Read(buffer, 0, Length);
            while (bytesRead > 0)
            {
                _stream.Write(buffer, 0, bytesRead);
                bytesRead = streamResponse.Read(buffer, 0, Length);
            }
            return _stream;
        }
        /// <summary>
        /// 爲請求準備參數
        /// </summary>
        ///<param name="objhttpItem">參數列表</param>
        private void SetRequest(HttpItem objhttpItem)
        {
            //設置安全協議
            ServicePointManager.SecurityProtocol = objhttpItem.SecurityProtocolType;
            // 驗證證書
            SetCer(objhttpItem);
            //設置Header參數
            if (objhttpItem.Header != null && objhttpItem.Header.Count > 0) foreach (string item in objhttpItem.Header.AllKeys)
                {
                    request.Headers.Add(item, objhttpItem.Header[item]);
                }
            // 設置代理
            SetProxy(objhttpItem);
            if (objhttpItem.ProtocolVersion != null) request.ProtocolVersion = objhttpItem.ProtocolVersion;
            request.ServicePoint.Expect100Continue = objhttpItem.Expect100Continue;
            //請求方式Get或者Post
            request.Method = objhttpItem.Method;
            request.Timeout = objhttpItem.Timeout;
            request.ReadWriteTimeout = objhttpItem.ReadWriteTimeout;
            //Accept
            request.Accept = objhttpItem.Accept;
            //ContentType返回類型
            request.ContentType = objhttpItem.ContentType;
            //UserAgent客戶端的訪問類型，包括瀏覽器版本和操做系統信息
            request.UserAgent = objhttpItem.UserAgent;
            // 編碼
            encoding = objhttpItem.Encoding;
            //設置Cookie
            SetCookie(objhttpItem);
            //來源地址
            request.Referer = objhttpItem.Referer;
            //是否執行跳轉功能
            request.AllowAutoRedirect = objhttpItem.Allowautoredirect;
            //設置Post數據
            SetPostData(objhttpItem);
            //設置最大鏈接
            if (objhttpItem.Connectionlimit > 0) request.ServicePoint.ConnectionLimit = objhttpItem.Connectionlimit;
        }
        /// <summary>
        /// 設置證書
        /// </summary>
        /// <param name="objhttpItem"></param>
        private void SetCer(HttpItem objhttpItem)
        {
            if (!string.IsNullOrEmpty(objhttpItem.CerPath))
            {
                //這一句必定要寫在建立鏈接的前面。使用回調的方法進行證書驗證。
                ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult);
                //初始化對像，並設置請求的URL地址
                request = (HttpWebRequest)WebRequest.Create(objhttpItem.URL);
                SetCerList(objhttpItem);
                //將證書添加到請求裏
                request.ClientCertificates.Add(new X509Certificate(objhttpItem.CerPath));
            }
            else
            {
                //初始化對像，並設置請求的URL地址
                request = (HttpWebRequest)WebRequest.Create(objhttpItem.URL);
                SetCerList(objhttpItem);
            }
        }
        /// <summary>
        /// 設置多個證書
        /// </summary>
        /// <param name="objhttpItem"></param>
        private void SetCerList(HttpItem objhttpItem)
        {
            if (objhttpItem.ClentCertificates != null && objhttpItem.ClentCertificates.Count > 0)
            {
                foreach (X509Certificate item in objhttpItem.ClentCertificates)
                {
                    request.ClientCertificates.Add(item);
                }
            }
        }
        /// <summary>
        /// 設置Cookie
        /// </summary>
        /// <param name="objhttpItem">Http參數</param>
        private void SetCookie(HttpItem objhttpItem)
        {
            if (!string.IsNullOrEmpty(objhttpItem.Cookie))
                //Cookie
                request.Headers[HttpRequestHeader.Cookie] = objhttpItem.Cookie;
            //設置Cookie
            if (objhttpItem.CookieCollection != null)
            {
                request.CookieContainer = new CookieContainer();
                request.CookieContainer.Add(objhttpItem.CookieCollection);
            }
        }
        /// <summary>
        /// 設置Post數據
        /// </summary>
        /// <param name="objhttpItem">Http參數</param>
        private void SetPostData(HttpItem objhttpItem)
        {
            //驗證在獲得結果時是否有傳入數據
            if (request.Method.Trim().ToLower().Contains("post"))
            {
                if (objhttpItem.PostEncoding != null)
                {
                    postencoding = objhttpItem.PostEncoding;
                }
                byte[] buffer = null;
                //寫入Byte類型
                if (objhttpItem.PostDataType == PostDataType.Byte && objhttpItem.PostdataByte != null && objhttpItem.PostdataByte.Length > 0)
                {
                    //驗證在獲得結果時是否有傳入數據
                    buffer = objhttpItem.PostdataByte;
                }//寫入文件
                else if (objhttpItem.PostDataType == PostDataType.FilePath && !string.IsNullOrEmpty(objhttpItem.Postdata))
                {
                    StreamReader r = new StreamReader(objhttpItem.Postdata, postencoding);
                    buffer = postencoding.GetBytes(r.ReadToEnd());
                    r.Close();
                } //寫入字符串
                else if (!string.IsNullOrEmpty(objhttpItem.Postdata))
                {
                    buffer = postencoding.GetBytes(objhttpItem.Postdata);
                }
                if (buffer != null)
                {
                    request.ContentLength = buffer.Length;
                    request.GetRequestStream().Write(buffer, 0, buffer.Length);
                }
            }
        }
        /// <summary>
        /// 設置代理
        /// </summary>
        /// <param name="objhttpItem">參數對象</param>
        private void SetProxy(HttpItem objhttpItem)
        {
            if (!string.IsNullOrEmpty(objhttpItem.ProxyIp))
            {
                //設置代理服務器
                if (objhttpItem.ProxyIp.Contains(":"))
                {
                    string[] plist = objhttpItem.ProxyIp.Split(':');
                    WebProxy myProxy = new WebProxy(plist[0].Trim(), Convert.ToInt32(plist[1].Trim()));
                    //建議鏈接
                    myProxy.Credentials = new NetworkCredential(objhttpItem.ProxyUserName, objhttpItem.ProxyPwd);
                    //給當前請求對象
                    request.Proxy = myProxy;
                }
                else
                {
                    WebProxy myProxy = new WebProxy(objhttpItem.ProxyIp, false);
                    //建議鏈接
                    myProxy.Credentials = new NetworkCredential(objhttpItem.ProxyUserName, objhttpItem.ProxyPwd);
                    //給當前請求對象
                    request.Proxy = myProxy;
                }
                //設置安全憑證
                request.Credentials = CredentialCache.DefaultNetworkCredentials;
            }
        }
        /// <summary>
        /// 回調驗證證書問題
        /// </summary>
        /// <param name="sender">流對象</param>
        /// <param name="certificate">證書</param>
        /// <param name="chain">X509Chain</param>
        /// <param name="errors">SslPolicyErrors</param>
        /// <returns>bool</returns>
        public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; }
        #endregion
        #region 公共方法
       /// <summary>
       /// 根據指定的編碼對RUl進行解碼
       /// </summary>
       /// <param name="text">要解碼的字符串</param>
       /// <param name="encoding">要進行解碼的編碼方式</param>
       /// <returns></returns>
        public string URLDecode(string text, Encoding encoding)
        {
            return HttpUtility.UrlDecode(text, encoding);
        }
        /// <summary>
        /// 根據指定的編碼對URL進行編碼
        /// </summary>
        /// <param name="text">要編碼的URL</param>
        /// <param name="encoding">要進行編碼的編碼方式</param>
        /// <returns></returns>
        public string URLEncode(string text, Encoding encoding)
        {
            return HttpUtility.UrlEncode(text, encoding);
        }
        #endregion
    }
    /// <summary>
    /// Http請求參考類
    /// </summary>
    public class HttpItem
    {
        string _URL = string.Empty;
        /// <summary>
        /// 請求URL必須填寫
        /// </summary>
        public string URL
        {
            get { return _URL; }
            set { _URL = value; }
        }
        string _Method = "GET";
        /// <summary>
        /// 請求方式默認爲GET方式,當爲POST方式時必須設置Postdata的值
        /// </summary>
        public string Method
        {
            get { return _Method; }
            set { _Method = value; }
        }
        int _Timeout = 100000;
        /// <summary>
        /// 默認請求超時時間
        /// </summary>
        public int Timeout
        {
            get { return _Timeout; }
            set { _Timeout = value; }
        }
        int _ReadWriteTimeout = 30000;
        /// <summary>
        /// 默認寫入Post數據超時間
        /// </summary>
        public int ReadWriteTimeout
        {
            get { return _ReadWriteTimeout; }
            set { _ReadWriteTimeout = value; }
        }
        string _Accept = "text/html, application/xhtml+xml, */*";
        /// <summary>
        /// 請求標頭值 默認爲text/html, application/xhtml+xml, */*
        /// </summary>
        public string Accept
        {
            get { return _Accept; }
            set { _Accept = value; }
        }
        string _ContentType = "text/html";
        /// <summary>
        /// 請求返回類型默認 text/html
        /// </summary>
        public string ContentType
        {
            get { return _ContentType; }
            set { _ContentType = value; }
        }
        string _UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)";
        /// <summary>
        /// 客戶端訪問信息默認Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
        /// </summary>
        public string UserAgent
        {
            get { return _UserAgent; }
            set { _UserAgent = value; }
        }
        Encoding _Encoding = null;
        /// <summary>
        /// 返回數據編碼默認爲NUll,能夠自動識別,通常爲utf-8,gbk,gb2312
        /// </summary>
        public Encoding Encoding
        {
            get { return _Encoding; }
            set { _Encoding = value; }
        }
        private PostDataType _PostDataType = PostDataType.String;
        /// <summary>
        /// Post的數據類型
        /// </summary>
        public PostDataType PostDataType
        {
            get { return _PostDataType; }
            set { _PostDataType = value; }
        }
        string _Postdata = string.Empty;
        /// <summary>
        /// Post請求時要發送的字符串Post數據
        /// </summary>
        public string Postdata
        {
            get { return _Postdata; }
            set { _Postdata = value; }
        }
        private byte[] _PostdataByte = null;
        /// <summary>
        /// Post請求時要發送的Byte類型的Post數據
        /// </summary>
        public byte[] PostdataByte
        {
            get { return _PostdataByte; }
            set { _PostdataByte = value; }
        }
        CookieCollection cookiecollection = null;
        /// <summary>
        /// Cookie對象集合
        /// </summary>
        public CookieCollection CookieCollection
        {
            get { return cookiecollection; }
            set { cookiecollection = value; }
        }
        string _Cookie = string.Empty;
        /// <summary>
        /// 請求時的Cookie
        /// </summary>
        public string Cookie
        {
            get { return _Cookie; }
            set { _Cookie = value; }
        }
        string _Referer = string.Empty;
        /// <summary>
        /// 來源地址，上次訪問地址
        /// </summary>
        public string Referer
        {
            get { return _Referer; }
            set { _Referer = value; }
        }
        string _CerPath = string.Empty;
        /// <summary>
        /// 證書絕對路徑
        /// </summary>
        public string CerPath
        {
            get { return _CerPath; }
            set { _CerPath = value; }
        }
        private Boolean isToLower = false;
        /// <summary>
        /// 是否設置爲全文小寫，默認爲不轉化
        /// </summary>
        public Boolean IsToLower
        {
            get { return isToLower; }
            set { isToLower = value; }
        }
        private Boolean allowautoredirect = false;
        /// <summary>
        /// 支持跳轉頁面，查詢結果將是跳轉後的頁面，默認是不跳轉
        /// </summary>
        public Boolean Allowautoredirect
        {
            get { return allowautoredirect; }
            set { allowautoredirect = value; }
        }
        private int connectionlimit = 1024;
        /// <summary>
        /// 最大鏈接數
        /// </summary>
        public int Connectionlimit
        {
            get { return connectionlimit; }
            set { connectionlimit = value; }
        }
        private string proxyusername = string.Empty;
        /// <summary>
        /// 代理Proxy 服務器用戶名
        /// </summary>
        public string ProxyUserName
        {
            get { return proxyusername; }
            set { proxyusername = value; }
        }
        private string proxypwd = string.Empty;
        /// <summary>
        /// 代理 服務器密碼
        /// </summary>
        public string ProxyPwd
        {
            get { return proxypwd; }
            set { proxypwd = value; }
        }
        private string proxyip = string.Empty;
        /// <summary>
        /// 代理 服務IP
        /// </summary>
        public string ProxyIp
        {
            get { return proxyip; }
            set { proxyip = value; }
        }
        private ResultType resulttype = ResultType.String;
        /// <summary>
        /// 設置返回類型String和Byte
        /// </summary>
        public ResultType ResultType
        {
            get { return resulttype; }
            set { resulttype = value; }
        }
        private WebHeaderCollection header = new WebHeaderCollection();
        /// <summary>
        /// header對象
        /// </summary>
        public WebHeaderCollection Header
        {
            get { return header; }
            set { header = value; }
        }
        /// <summary>
        //     獲取或設置用於請求的 HTTP 版本。返回結果:用於請求的 HTTP 版本。默認爲 System.Net.HttpVersion.Version11。
        /// </summary>
        public Version ProtocolVersion { get; set; }
        private Boolean _expect100continue = true;
        /// <summary>
        ///  獲取或設置一個 System.Boolean 值，該值肯定是否使用 100-Continue 行爲。若是 POST 請求須要 100-Continue 響應，則爲 true；不然爲 false。默認值爲 true。
        /// </summary>
        public Boolean Expect100Continue
        {
            get { return _expect100continue; }
            set { _expect100continue = value; }
        }
        /// <summary>
        /// 設置509證書集合
        /// </summary>
        public X509CertificateCollection ClentCertificates { get; set; }
        /// <summary>
        /// 指定Schannel安全包支持的安全協議
        /// </summary>
        public SecurityProtocolType SecurityProtocolType { get; set; }
        /// <summary>
        /// 設置或獲取Post參數編碼,默認的爲Default編碼
        /// </summary>
        public Encoding PostEncoding { get; set; }
    }
    /// <summary>
    /// Http返回參數類
    /// </summary>
    public class HttpResult
    {
        /// <summary>
        /// Http請求返回的Cookie
        /// </summary>
        public string Cookie { get; set; }
        /// <summary>
        /// Cookie對象集合
        /// </summary>
        public CookieCollection CookieCollection { get; set; }
        /// <summary>
        /// 返回的String類型數據 只有ResultType.String時才返回數據，其它狀況爲空
        /// </summary>
        public string Html { get; set; }
        /// <summary>
        /// 返回的Byte數組 只有ResultType.Byte時才返回數據，其它狀況爲空
        /// </summary>
        public byte[] ResultByte { get; set; }
        /// <summary>
        /// header對象
        /// </summary>
        public WebHeaderCollection Header { get; set; }
        /// <summary>
        /// 返回狀態說明
        /// </summary>
        public string StatusDescription { get; set; }
        /// <summary>
        /// 返回狀態碼,默認爲OK
        /// </summary>
        public HttpStatusCode StatusCode { get; set; }
    }
    /// <summary>
    /// 返回類型
    /// </summary>
    public enum ResultType
    {
        /// <summary>
        /// 表示只返回字符串 只有Html有數據
        /// </summary>
        String,
        /// <summary>
        /// 表示返回字符串和字節流 ResultByte和Html都有數據返回
        /// </summary>
        Byte
    }
    /// <summary>
    /// Post的數據格式默認爲string
    /// </summary>
    public enum PostDataType
    {
        /// <summary>
        /// 字符串類型，這時編碼Encoding可不設置
        /// </summary>
        String,
        /// <summary>
        /// Byte類型，須要設置PostdataByte參數的值編碼Encoding可設置爲空
        /// </summary>
        Byte,
        /// <summary>
        /// 傳文件，Postdata必須設置爲文件的絕對路徑，必須設置Encoding的值
        /// </summary>
        FilePath
    }
}

HttpHelper源碼

3.HttpHelper類使用方法，

 HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://www.sufeinet.com",//URL     必需項
                Encoding = null,//編碼格式（utf-8,gb2312,gbk）     可選項 默認類會自動識別
                //Encoding = Encoding.Default,
                Method = "get",//URL     可選項 默認爲Get
                Timeout = 100000,//鏈接超時時間     可選項默認爲100000
                ReadWriteTimeout = 30000,//寫入Post數據超時時間     可選項默認爲30000
                IsToLower = false,//獲得的HTML代碼是否轉成小寫     可選項默認轉小寫
                Cookie = "",//字符串Cookie     可選項
                UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",//用戶的瀏覽器類型，版本，操做系統     可選項有默認值
                Accept = "text/html, application/xhtml+xml, */*",//    可選項有默認值
                ContentType = "text/html",//返回類型    可選項有默認值
                Referer = "http://www.sufeinet.com",//來源URL     可選項
            };
            item.Header.Add("測試Key1", "測試Value1");
            item.Header.Add("測試Key2", "測試Value2");
            //獲得HTML代碼
            HttpResult result = http.GetHtml(item);
            //取出返回的Cookie
            string cookie = result.Cookie;
            //返回的Html內容
            string html = result.Html;
            if (result.StatusCode == System.Net.HttpStatusCode.OK)
            {
                //表示訪問成功，具體的你們就參考HttpStatusCode類
            }
            //表示StatusCode的文字說明與描述
            string statusCodeDescription = result.StatusDescription;
        

本例子是一個統一的標準寫法，你們能夠根據須要自行修改，在下面還會有對特定功能的說明請你們繼續看
4.最簡單的Post與Get的寫法

 

 HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://www.sufeinet.com",//URL這裏都是測試     必需項
                Method = "get",//URL     可選項 默認爲Get
            };
            //獲得HTML代碼
            HttpResult result = http.GetHtml(item);
            item = new HttpItem()
           {
               URL = "http://tool.sufeinet.com",//URL這裏都是測試URl   必需項
               Encoding = null,//編碼格式（utf-8,gb2312,gbk）     可選項 默認類會自動識別
               //Encoding = Encoding.Default,
               Method = "post",//URL     可選項 默認爲Get
               Postdata = "user=123123&pwd=1231313"
           };
            //獲得新的HTML代碼
            result = http.GetHtml(item);

 

5.HttpHelper設置Header參考的方法

 

  HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://www.sufeinet.com",//URL     必需項
                Encoding = null,//編碼格式（utf-8,gb2312,gbk）     可選項 默認類會自動識別
                 //Encoding = Encoding.Default,
                Method = "get",//URL     可選項 默認爲Get
            };
            item.Header.Add("測試Key1", "測試Value1");
            item.Header.Add("測試Key2", "測試Value2");
            //獲得HTML代碼
            HttpResult result = http.GetHtml(item);
            //取出返回的Cookie
            string cookie = result.Cookie;
            //返回的Html內容
            string html = result.Html;
            if (result.StatusCode == System.Net.HttpStatusCode.OK)
            {
                //表示訪問成功，具體的你們就參考HttpStatusCode類
            }
            //表示StatusCode的文字說明與描述
            string statusCodeDescription = result.StatusDescription;

 

下面我列出一些不能直接Add的參數
6.HttpHelper獲取圖片的方式

 

  HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://www.sufeinet.com",//URL     必需項
                Encoding = null,//編碼格式（utf-8,gb2312,gbk）     可選項 默認類會自動識別
                //Encoding = Encoding.Default,
                ResultType = ResultType.Byte
            };
            //獲得HTML代碼
            HttpResult result = http.GetHtml(item);
            if (result.StatusCode == System.Net.HttpStatusCode.OK)
            {
                //表示訪問成功，具體的你們就參考HttpStatusCode類
            }
            //表示StatusCode的文字說明與描述
            string statusCodeDescription = result.StatusDescription;
            //把獲得的Byte轉成圖片
            Image img = byteArrayToImage(result.ResultByte);
        }

        /// <summary>
        /// 字節數組生成圖片
        /// </summary>
        /// <param name="Bytes">字節數組</param>
        /// <returns>圖片</returns>
        private Image byteArrayToImage(byte[] Bytes)
        {
            using (MemoryStream ms = new MemoryStream(Bytes))
            {
                Image outputImg = Image.FromStream(ms);
                return outputImg;
            }
        }

 

 

7.二次或屢次使用Cookie的方式

  HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://www.sufeinet.com",//URL這裏都是測試     必需項
                Encoding = null,//編碼格式（utf-8,gb2312,gbk）     可選項 默認類會自動識別
                //Encoding = Encoding.Default,
                Method = "get",//URL     可選項 默認爲Get
            };
            //獲得HTML代碼
            HttpResult result = http.GetHtml(item);
            item = new HttpItem()
           {
               URL = "http://tool.sufeinet.com",//URL這裏都是測試URl   必需項
               Encoding = null,//編碼格式（utf-8,gb2312,gbk）     可選項 默認類會自動識別
               //Encoding = Encoding.Default,
               Method = "get",//URL     可選項 默認爲Get
               Cookie = result.Cookie,
           };
            //獲得新的HTML代碼
            result = http.GetHtml(item);

8.使用URL編碼的方式

  HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = http.URLEncode("http://www.sufeinet.com", Encoding.UTF8),//URL編碼    
            };
            HttpResult result = http.GetHtml(item);
            string html = result.Html;
            string url = http.URLDecode(html, Encoding.UTF8);//URL解碼
            string cookie = result.Cookie;

好了就這些，具體的你們能夠在使用中提出來，我盡力爲你們解決

若是您感受還能夠的話就給個評論或者是推薦吧。