[C#HttpHelper]类1.4正式版教程与升级报告
2013-07-02 13:19 苏飞 阅读(18261) 评论(31) 编辑 收藏 举报 [C#HttpHelper]类1.4正式版教程与升级报告
导读
1.升级报告
2.HttpHelper1.4正式版下载
3.HttpHelper类使用方法，
4.最简单的Post与Get的写法
5.HttpHelper设置Header参考的方法
6.HttpHelper获取图片的方式
7.二次或多次使用Cookie的方式
8.使用URL编码的方式
1.升级报告
1.方法 中不要使用类new object(){name=""};这样的方法，因为net2.0不支持
2. if (response.StatusCode != null)无效，一直为True ReEnter反映
if (response.StatusCode != null)无效，一直为True ReEnter反映 { result.StatusCode = response.StatusCode; result.StatusDescription = response.StatusDescription; }
解决办法
if (response != null)无效，一直为True ReEnter反映 { result.StatusCode = response.StatusCode; result.StatusDescription = response.StatusDescription; }无效，一直为True ReEnter反映
3.提出的问题
添加属性ProtocolVersion 获取或设置用于请求的 HTTP 版本。返回结果:用于请求的 HTTP 版本。默认为 System.Net.HttpVersion.Version11。
4. 解决的问题需要添加属性
添加属性Expect100Continue获取或设置一个 System.Boolean 值，该值确定是否使用 100-Continue 行为。如果 POST 请求需要 100-Continue 响应，则为 true；否则为 false。默认值为 true。
4.多个证书添加的问题
添加属性ClentCertificates 可以添加多个证书文件
5.ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;设置安全协议的版本。
增加到项目中，可直接设置属性 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;
应该是meta.Groups.Count > 1
7.post数据添加自由设置编码 只要设置属性HttpItem.PostEncoding就可以了
8.服务器提交了协议冲突. Section=ResponseHeader Detail=标头名称无效
9.增加Url编码与解码方法
/// <summary> /// 根据指定的编码对RUl进行解码 /// </summary> /// <param name="text">要解码的字符串</param> /// <param name="encoding">要进行解码的编码方式</param> /// <returns></returns> public static string URLDecode(string text, Encoding encoding) { return HttpUtility.UrlDecode(text, encoding); } /// <summary> /// 根据指定的编码对URL进行编码 /// </summary> /// <param name="text">要编码的URL</param> /// <param name="encoding">要进行编码的编码方式</param> /// <returns></returns> public static string URLEncode(string text, Encoding encoding) { return HttpUtility.UrlEncode(text, encoding); ｝
2.HttpHelper1.4正式版下载
下载地址：http://www.sufeinet.com/thread-3-1-1.html
在线测试工具：http://www.sufeinet.com/thread-3690-1-1.html
专用Cookie分析类：http://www.sufeinet.com/thread-2382-1-1.html
要学习更多关于C# Http的请是看我的文章 C# HttpWebRequest 绝技
代码如下所示
/// <summary> /// 类说明：HttpHelper类，用来实现Http访问，Post或者Get方式的，直接访问，带Cookie的，带证书的等方式，可以设置代理 /// 重要提示：请不要自行修改本类，如果因为你自己修改后将无法升级到新版本。如果确实有什么问题请到官方网站提建议， /// 我们一定会及时修改 /// 编码日期：2011-09-20 /// 编 码 人：苏飞 /// 联系方式：361983679 /// 官方网址：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连接操作帮助类 /// </summary> public class HttpHelper { #region 预定义方法或者变更 //默认的编码 private Encoding encoding = Encoding.Default; //Post数据编码 private Encoding postencoding = Encoding.Default; //HttpWebRequest对象用来发起请求 private HttpWebRequest request = null; //获取影响流的数据对象 private HttpWebResponse response = null; /// <summary> /// 根据相传入的数据，得到相应页面数据 /// </summary> /// <param name="objhttpitem">参数类对象</param> /// <returns>返回HttpResult类型</returns> public HttpResult GetHtml(HttpItem objhttpitem) { //返回参数 HttpResult result = new HttpResult(); try { //准备参数 SetRequest(objhttpitem); } catch (Exception ex) { result = new HttpResult() { Cookie = "", Header = null, Html = ex.Message, StatusDescription = "配置参数时出错：" + ex.Message }; return result; } try { #region 得到请求的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处理 if (response.ContentEncoding != null && response.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase)) { //开始读取流并设置编码方式 //new GZipStream(response.GetResponseStream(), CompressionMode.Decompress).CopyTo(_stream, 10240); //.net4.0以下写法 _stream = GetMemoryStream(new GZipStream(response.GetResponseStream(), CompressionMode.Decompress)); } else { //开始读取流并设置编码方式 //response.GetResponseStream().CopyTo(_stream, 10240); //.net4.0以下写法 _stream = GetMemoryStream(response.GetResponseStream()); } //获取Byte byte[] RawResponse = _stream.ToArray(); _stream.Close(); //是否返回Byte类型数据 if (objhttpitem.ResultType == ResultType.Byte) result.ResultByte = RawResponse; //从这里开始我们要无视编码了 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); } } //得到返回的HTML result.Html = encoding.GetString(RawResponse); } #endregion } catch (WebException ex) { //这里是在发生异常时返回的错误信息 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以下.net版本取数据使用 /// </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> /// 为请求准备参数 /// </summary> ///<param name="objhttpItem">参数列表</param> private void SetRequest(HttpItem objhttpItem) { //设置安全协议 ServicePointManager.SecurityProtocol = objhttpItem.SecurityProtocolType; // 验证证书 SetCer(objhttpItem); //设置Header参数 if (objhttpItem.Header != null && objhttpItem.Header.Count > 0) foreach (string item in objhttpItem.Header.AllKeys) { request.Headers.Add(item, objhttpItem.Header[item]); } // 设置代理 SetProxy(objhttpItem); if (objhttpItem.ProtocolVersion != null) request.ProtocolVersion = objhttpItem.ProtocolVersion; request.ServicePoint.Expect100Continue = objhttpItem.Expect100Continue; //请求方式Get或者Post request.Method = objhttpItem.Method; request.Timeout = objhttpItem.Timeout; request.ReadWriteTimeout = objhttpItem.ReadWriteTimeout; //Accept request.Accept = objhttpItem.Accept; //ContentType返回类型 request.ContentType = objhttpItem.ContentType; //UserAgent客户端的访问类型，包括浏览器版本和操作系统信息 request.UserAgent = objhttpItem.UserAgent; // 编码 encoding = objhttpItem.Encoding; //设置Cookie SetCookie(objhttpItem); //来源地址 request.Referer = objhttpItem.Referer; //是否执行跳转功能 request.AllowAutoRedirect = objhttpItem.Allowautoredirect; //设置Post数据 SetPostData(objhttpItem); //设置最大连接 if (objhttpItem.Connectionlimit > 0) request.ServicePoint.ConnectionLimit = objhttpItem.Connectionlimit; } /// <summary> /// 设置证书 /// </summary> /// <param name="objhttpItem"></param> private void SetCer(HttpItem objhttpItem) { if (!string.IsNullOrEmpty(objhttpItem.CerPath)) { //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); //初始化对像，并设置请求的URL地址 request = (HttpWebRequest)WebRequest.Create(objhttpItem.URL); SetCerList(objhttpItem); //将证书添加到请求里 request.ClientCertificates.Add(new X509Certificate(objhttpItem.CerPath)); } else { //初始化对像，并设置请求的URL地址 request = (HttpWebRequest)WebRequest.Create(objhttpItem.URL); SetCerList(objhttpItem); } } /// <summary> /// 设置多个证书 /// </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> /// 设置Cookie /// </summary> /// <param name="objhttpItem">Http参数</param> private void SetCookie(HttpItem objhttpItem) { if (!string.IsNullOrEmpty(objhttpItem.Cookie)) //Cookie request.Headers[HttpRequestHeader.Cookie] = objhttpItem.Cookie; //设置Cookie if (objhttpItem.CookieCollection != null) { request.CookieContainer = new CookieContainer(); request.CookieContainer.Add(objhttpItem.CookieCollection); } } /// <summary> /// 设置Post数据 /// </summary> /// <param name="objhttpItem">Http参数</param> private void SetPostData(HttpItem objhttpItem) { //验证在得到结果时是否有传入数据 if (request.Method.Trim().ToLower().Contains("post")) { if (objhttpItem.PostEncoding != null) { postencoding = objhttpItem.PostEncoding; } byte[] buffer = null; //写入Byte类型 if (objhttpItem.PostDataType == PostDataType.Byte && objhttpItem.PostdataByte != null && objhttpItem.PostdataByte.Length > 0) { //验证在得到结果时是否有传入数据 buffer = objhttpItem.PostdataByte; }//写入文件 else if (objhttpItem.PostDataType == PostDataType.FilePath && !string.IsNullOrEmpty(objhttpItem.Postdata)) { StreamReader r = new StreamReader(objhttpItem.Postdata, postencoding); buffer = postencoding.GetBytes(r.ReadToEnd()); r.Close(); } //写入字符串 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> /// 设置代理 /// </summary> /// <param name="objhttpItem">参数对象</param> private void SetProxy(HttpItem objhttpItem) { if (!string.IsNullOrEmpty(objhttpItem.ProxyIp)) { //设置代理服务器 if (objhttpItem.ProxyIp.Contains(":")) { string[] plist = objhttpItem.ProxyIp.Split(':'); WebProxy myProxy = new WebProxy(plist[0].Trim(), Convert.ToInt32(plist[1].Trim())); //建议连接 myProxy.Credentials = new NetworkCredential(objhttpItem.ProxyUserName, objhttpItem.ProxyPwd); //给当前请求对象 request.Proxy = myProxy; } else { WebProxy myProxy = new WebProxy(objhttpItem.ProxyIp, false); //建议连接 myProxy.Credentials = new NetworkCredential(objhttpItem.ProxyUserName, objhttpItem.ProxyPwd); //给当前请求对象 request.Proxy = myProxy; } //设置安全凭证 request.Credentials = CredentialCache.DefaultNetworkCredentials; } } /// <summary> /// 回调验证证书问题 /// </summary> /// <param name="sender">流对象</param> /// <param name="certificate">证书</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> /// 根据指定的编码对RUl进行解码 /// </summary> /// <param name="text">要解码的字符串</param> /// <param name="encoding">要进行解码的编码方式</param> /// <returns></returns> public string URLDecode(string text, Encoding encoding) { return HttpUtility.UrlDecode(text, encoding); } /// <summary> /// 根据指定的编码对URL进行编码 /// </summary> /// <param name="text">要编码的URL</param> /// <param name="encoding">要进行编码的编码方式</param> /// <returns></returns> public string URLEncode(string text, Encoding encoding) { return HttpUtility.UrlEncode(text, encoding); } #endregion } /// <summary> /// Http请求参考类 /// </summary> public class HttpItem { string _URL = string.Empty; /// <summary> /// 请求URL必须填写 /// </summary> public string URL { get { return _URL; } set { _URL = value; } } string _Method = "GET"; /// <summary> /// 请求方式默认为GET方式,当为POST方式时必须设置Postdata的值 /// </summary> public string Method { get { return _Method; } set { _Method = value; } } int _Timeout = 100000; /// <summary> /// 默认请求超时时间 /// </summary> public int Timeout { get { return _Timeout; } set { _Timeout = value; } } int _ReadWriteTimeout = 30000; /// <summary> /// 默认写入Post数据超时间 /// </summary> public int ReadWriteTimeout { get { return _ReadWriteTimeout; } set { _ReadWriteTimeout = value; } } string _Accept = "text/html, application/xhtml+xml, */*"; /// <summary> /// 请求标头值 默认为text/html, application/xhtml+xml, */* /// </summary> public string Accept { get { return _Accept; } set { _Accept = value; } } string _ContentType = "text/html"; /// <summary> /// 请求返回类型默认 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> /// 客户端访问信息默认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> /// 返回数据编码默认为NUll,可以自动识别,一般为utf-8,gbk,gb2312 /// </summary> public Encoding Encoding { get { return _Encoding; } set { _Encoding = value; } } private PostDataType _PostDataType = PostDataType.String; /// <summary> /// Post的数据类型 /// </summary> public PostDataType PostDataType { get { return _PostDataType; } set { _PostDataType = value; } } string _Postdata = string.Empty; /// <summary> /// Post请求时要发送的字符串Post数据 /// </summary> public string Postdata { get { return _Postdata; } set { _Postdata = value; } } private byte[] _PostdataByte = null; /// <summary> /// Post请求时要发送的Byte类型的Post数据 /// </summary> public byte[] PostdataByte { get { return _PostdataByte; } set { _PostdataByte = value; } } CookieCollection cookiecollection = null; /// <summary> /// Cookie对象集合 /// </summary> public CookieCollection CookieCollection { get { return cookiecollection; } set { cookiecollection = value; } } string _Cookie = string.Empty; /// <summary> /// 请求时的Cookie /// </summary> public string Cookie { get { return _Cookie; } set { _Cookie = value; } } string _Referer = string.Empty; /// <summary> /// 来源地址，上次访问地址 /// </summary> public string Referer { get { return _Referer; } set { _Referer = value; } } string _CerPath = string.Empty; /// <summary> /// 证书绝对路径 /// </summary> public string CerPath { get { return _CerPath; } set { _CerPath = value; } } private Boolean isToLower = false; /// <summary> /// 是否设置为全文小写，默认为不转化 /// </summary> public Boolean IsToLower { get { return isToLower; } set { isToLower = value; } } private Boolean allowautoredirect = false; /// <summary> /// 支持跳转页面，查询结果将是跳转后的页面，默认是不跳转 /// </summary> public Boolean Allowautoredirect { get { return allowautoredirect; } set { allowautoredirect = value; } } private int connectionlimit = 1024; /// <summary> /// 最大连接数 /// </summary> public int Connectionlimit { get { return connectionlimit; } set { connectionlimit = value; } } private string proxyusername = string.Empty; /// <summary> /// 代理Proxy 服务器用户名 /// </summary> public string ProxyUserName { get { return proxyusername; } set { proxyusername = value; } } private string proxypwd = string.Empty; /// <summary> /// 代理 服务器密码 /// </summary> public string ProxyPwd { get { return proxypwd; } set { proxypwd = value; } } private string proxyip = string.Empty; /// <summary> /// 代理 服务IP /// </summary> public string ProxyIp { get { return proxyip; } set { proxyip = value; } } private ResultType resulttype = ResultType.String; /// <summary> /// 设置返回类型String和Byte /// </summary> public ResultType ResultType { get { return resulttype; } set { resulttype = value; } } private WebHeaderCollection header = new WebHeaderCollection(); /// <summary> /// header对象 /// </summary> public WebHeaderCollection Header { get { return header; } set { header = value; } } /// <summary> // 获取或设置用于请求的 HTTP 版本。返回结果:用于请求的 HTTP 版本。默认为 System.Net.HttpVersion.Version11。 /// </summary> public Version ProtocolVersion { get; set; } private Boolean _expect100continue = true; /// <summary> /// 获取或设置一个 System.Boolean 值，该值确定是否使用 100-Continue 行为。如果 POST 请求需要 100-Continue 响应，则为 true；否则为 false。默认值为 true。 /// </summary> public Boolean Expect100Continue { get { return _expect100continue; } set { _expect100continue = value; } } /// <summary> /// 设置509证书集合 /// </summary> public X509CertificateCollection ClentCertificates { get; set; } /// <summary> /// 指定Schannel安全包支持的安全协议 /// </summary> public SecurityProtocolType SecurityProtocolType { get; set; } /// <summary> /// 设置或获取Post参数编码,默认的为Default编码 /// </summary> public Encoding PostEncoding { get; set; } } /// <summary> /// Http返回参数类 /// </summary> public class HttpResult { /// <summary> /// Http请求返回的Cookie /// </summary> public string Cookie { get; set; } /// <summary> /// Cookie对象集合 /// </summary> public CookieCollection CookieCollection { get; set; } /// <summary> /// 返回的String类型数据 只有ResultType.String时才返回数据，其它情况为空 /// </summary> public string Html { get; set; } /// <summary> /// 返回的Byte数组 只有ResultType.Byte时才返回数据，其它情况为空 /// </summary> public byte[] ResultByte { get; set; } /// <summary> /// header对象 /// </summary> public WebHeaderCollection Header { get; set; } /// <summary> /// 返回状态说明 /// </summary> public string StatusDescription { get; set; } /// <summary> /// 返回状态码,默认为OK /// </summary> public HttpStatusCode StatusCode { get; set; } } /// <summary> /// 返回类型 /// </summary> public enum ResultType { /// <summary> /// 表示只返回字符串 只有Html有数据 /// </summary> String, /// <summary> /// 表示返回字符串和字节流 ResultByte和Html都有数据返回 /// </summary> Byte } /// <summary> /// Post的数据格式默认为string /// </summary> public enum PostDataType { /// <summary> /// 字符串类型，这时编码Encoding可不设置 /// </summary> String, /// <summary> /// Byte类型，需要设置PostdataByte参数的值编码Encoding可设置为空 /// </summary> Byte, /// <summary> /// 传文件，Postdata必须设置为文件的绝对路径，必须设置Encoding的值 /// </summary> FilePath } }
3.HttpHelper类使用方法，
HttpHelper http = new HttpHelper(); HttpItem item = new HttpItem() { URL = "http://www.sufeinet.com",//URL 必需项 Encoding = null,//编码格式（utf-8,gb2312,gbk） 可选项 默认类会自动识别 //Encoding = Encoding.Default, Method = "get",//URL 可选项 默认为Get Timeout = 100000,//连接超时时间 可选项默认为100000 ReadWriteTimeout = 30000,//写入Post数据超时时间 可选项默认为30000 IsToLower = false,//得到的HTML代码是否转成小写 可选项默认转小写 Cookie = "",//字符串Cookie 可选项 UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",//用户的浏览器类型，版本，操作系统 可选项有默认值 Accept = "text/html, application/xhtml+xml, */*",// 可选项有默认值 ContentType = "text/html",//返回类型 可选项有默认值 Referer = "http://www.sufeinet.com",//来源URL 可选项 }; item.Header.Add("测试Key1", "测试Value1"); item.Header.Add("测试Key2", "测试Value2"); //得到HTML代码 HttpResult result = http.GetHtml(item); //取出返回的Cookie string cookie = result.Cookie; //返回的Html内容 string html = result.Html; if (result.StatusCode == System.Net.HttpStatusCode.OK) { //表示访问成功，具体的大家就参考HttpStatusCode类 } //表示StatusCode的文字说明与描述 string statusCodeDescription = result.StatusDescription;
本例子是一个统一的标准写法，大家可以根据需要自行修改，在下面还会有对特定功能的说明请大家继续看
4.最简单的Post与Get的写法
HttpHelper http = new HttpHelper(); HttpItem item = new HttpItem() { URL = "http://www.sufeinet.com",//URL这里都是测试 必需项 Method = "get",//URL 可选项 默认为Get }; //得到HTML代码 HttpResult result = http.GetHtml(item); item = new HttpItem() { URL = "http://tool.sufeinet.com",//URL这里都是测试URl 必需项 Encoding = null,//编码格式（utf-8,gb2312,gbk） 可选项 默认类会自动识别 //Encoding = Encoding.Default, Method = "post",//URL 可选项 默认为Get Postdata = "user=123123&pwd=1231313" }; //得到新的HTML代码 result = http.GetHtml(item);
5.HttpHelper设置Header参考的方法
HttpHelper http = new HttpHelper(); HttpItem item = new HttpItem() { URL = "http://www.sufeinet.com",//URL 必需项 Encoding = null,//编码格式（utf-8,gb2312,gbk） 可选项 默认类会自动识别 //Encoding = Encoding.Default, Method = "get",//URL 可选项 默认为Get }; item.Header.Add("测试Key1", "测试Value1"); item.Header.Add("测试Key2", "测试Value2"); //得到HTML代码 HttpResult result = http.GetHtml(item); //取出返回的Cookie string cookie = result.Cookie; //返回的Html内容 string html = result.Html; if (result.StatusCode == System.Net.HttpStatusCode.OK) { //表示访问成功，具体的大家就参考HttpStatusCode类 } //表示StatusCode的文字说明与描述 string statusCodeDescription = result.StatusDescription;
下面我列出一些不能直接Add的参数
6.HttpHelper获取图片的方式
HttpHelper http = new HttpHelper(); HttpItem item = new HttpItem() { URL = "http://www.sufeinet.com",//URL 必需项 Encoding = null,//编码格式（utf-8,gb2312,gbk） 可选项 默认类会自动识别 //Encoding = Encoding.Default, ResultType = ResultType.Byte }; //得到HTML代码 HttpResult result = http.GetHtml(item); if (result.StatusCode == System.Net.HttpStatusCode.OK) { //表示访问成功，具体的大家就参考HttpStatusCode类 } //表示StatusCode的文字说明与描述 string statusCodeDescription = result.StatusDescription; //把得到的Byte转成图片 Image img = byteArrayToImage(result.ResultByte); } /// <summary> /// 字节数组生成图片 /// </summary> /// <param name="Bytes">字节数组</param> /// <returns>图片</returns> private Image byteArrayToImage(byte[] Bytes) { using (MemoryStream ms = new MemoryStream(Bytes)) { Image outputImg = Image.FromStream(ms); return outputImg; } }
7.二次或多次使用Cookie的方式
HttpHelper http = new HttpHelper(); HttpItem item = new HttpItem() { URL = "http://www.sufeinet.com",//URL这里都是测试 必需项 Encoding = null,//编码格式（utf-8,gb2312,gbk） 可选项 默认类会自动识别 //Encoding = Encoding.Default, Method = "get",//URL 可选项 默认为Get }; //得到HTML代码 HttpResult result = http.GetHtml(item); item = new HttpItem() { URL = "http://tool.sufeinet.com",//URL这里都是测试URl 必需项 Encoding = null,//编码格式（utf-8,gb2312,gbk） 可选项 默认类会自动识别 //Encoding = Encoding.Default, Method = "get",//URL 可选项 默认为Get Cookie = result.Cookie, }; //得到新的HTML代码 result = http.GetHtml(item);
8.使用URL编码的方式
HttpHelper http = new HttpHelper(); HttpItem item = new HttpItem() { URL = http.URLEncode("http://www.sufeinet.com", Encoding.UTF8),//URL编码 }; HttpResult result = http.GetHtml(item); string html = result.Html; string url = http.URLDecode(html, Encoding.UTF8);//URL解码 string cookie = result.Cookie;
好了就这些，具体的大家可以在使用中提出来，我尽力为大家解决
如果您感觉还可以的话就给个评论或者是推荐吧。
本人的博客不再维护从2013年就不再维护了
需要我帮助的朋友请到我的个人论坛 http://www.sufeinet.com 进行讨论，感谢大家对我的支持！
