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@@ -1,439 +0,0 @@
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-using ZhonTai.Common.Attributes;
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-using System;
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-using System.IO;
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-using System.Net;
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-using System.Text;
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-using System.Text.RegularExpressions;
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-using System.Threading;
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-
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-namespace ZhonTai.Common.Helpers
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-{
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- /// <summary>
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- /// Html操作相关类
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- /// </summary>
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- [SingleInstance]
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- public class HtmlHelper
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- {
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- #region 私有字段
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-
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- private readonly string _ContentType = "application/json";
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- private readonly string _Accept = "image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/x-silverlight, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, application/x-silverlight-2-b1, */*";
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- private readonly string _UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)";
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- private int _Delay = 1000;
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- private int _CurrentTry = 0;
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-
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- #endregion 私有字段
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-
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- #region 公有属性
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-
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- /// <summary>
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- /// Cookie
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- /// </summary>
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- public CookieContainer CookieContainer { get; } = new CookieContainer();
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-
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- /// <summary>
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- /// 语言
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- /// </summary>
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- public Encoding Encoding { get; set; } = Encoding.GetEncoding("utf-8");
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-
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- public int NetworkDelay
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- {
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- get
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- {
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- Random r = new Random();
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- return r.Next(_Delay, _Delay * 2);
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- }
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- set
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- {
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- _Delay = value;
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- }
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- }
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-
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- public int MaxTry { get; set; } = 300;
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-
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- #endregion 公有属性
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-
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- #region 获取HTML
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-
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- /// <summary>
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- /// 获取HTML
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- /// </summary>
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- /// <param name="url">地址</param>
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- /// <param name="postData">post 提交的字符串</param>
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- /// <param name="isPost">是否是post</param>
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- /// <param name="cookieContainer">CookieContainer</param>
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- public string GetHtml(string url, string postData, bool isPost, CookieContainer cookieContainer)
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- {
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- if (string.IsNullOrEmpty(postData)) return GetHtml(url, cookieContainer);
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- Thread.Sleep(NetworkDelay);
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- _CurrentTry++;
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- HttpWebRequest httpWebRequest = null;
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- HttpWebResponse httpWebResponse = null;
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- try
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- {
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- byte[] byteRequest = Encoding.Default.GetBytes(postData);
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- httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
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- httpWebRequest.CookieContainer = cookieContainer;
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- httpWebRequest.ContentType = _ContentType;
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- httpWebRequest.ServicePoint.ConnectionLimit = MaxTry;
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- httpWebRequest.Referer = url;
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- httpWebRequest.Accept = _Accept;
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- httpWebRequest.UserAgent = _UserAgent;
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- httpWebRequest.Method = isPost ? "POST" : "GET";
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- httpWebRequest.ContentLength = byteRequest.Length;
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- Stream stream = httpWebRequest.GetRequestStream();
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- stream.Write(byteRequest, 0, byteRequest.Length);
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- stream.Close();
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- httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
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- Stream responseStream = httpWebResponse.GetResponseStream();
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- StreamReader streamReader = new StreamReader(responseStream, Encoding);
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- string html = streamReader.ReadToEnd();
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- streamReader.Close();
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- responseStream.Close();
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- _CurrentTry = 0;
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- httpWebRequest.Abort();
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- httpWebResponse.Close();
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- return html;
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- }
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- catch
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- {
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- if (_CurrentTry <= MaxTry) GetHtml(url, postData, isPost, cookieContainer);
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- _CurrentTry--;
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- if (httpWebRequest != null) httpWebRequest.Abort();
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- if (httpWebResponse != null) httpWebResponse.Close();
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- return string.Empty;
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- }
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- }
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-
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- /// <summary>
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- /// 获取HTML
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- /// </summary>
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- /// <param name="url">地址</param>
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- /// <param name="cookieContainer">CookieContainer</param>
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- public string GetHtml(string url, CookieContainer cookieContainer)
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- {
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- Thread.Sleep(NetworkDelay);
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- _CurrentTry++;
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- HttpWebRequest httpWebRequest = null;
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- HttpWebResponse httpWebResponse = null;
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- try
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- {
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- httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
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- httpWebRequest.CookieContainer = cookieContainer;
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- httpWebRequest.ContentType = _ContentType;
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- httpWebRequest.ServicePoint.ConnectionLimit = MaxTry;
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- httpWebRequest.Referer = url;
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- httpWebRequest.Accept = _Accept;
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- httpWebRequest.UserAgent = _UserAgent;
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- httpWebRequest.Method = "GET";
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- httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
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- Stream responseStream = httpWebResponse.GetResponseStream();
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- StreamReader streamReader = new StreamReader(responseStream, Encoding);
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- string html = streamReader.ReadToEnd();
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- streamReader.Close();
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- responseStream.Close();
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- _CurrentTry--;
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- httpWebRequest.Abort();
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- httpWebResponse.Close();
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- return html;
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- }
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- catch (Exception)
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- {
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- if (_CurrentTry <= MaxTry) GetHtml(url, cookieContainer);
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- _CurrentTry--;
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- if (httpWebRequest != null) httpWebRequest.Abort();
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- if (httpWebResponse != null) httpWebResponse.Close();
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- return string.Empty;
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- }
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- }
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-
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- #endregion 获取HTML
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-
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- #region 获取字符流
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-
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- //---------------------------------------------------------------------------------------------------------------
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- // 示例:
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- // System.Net.CookieContainer cookie = new System.Net.CookieContainer();
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- // Stream s = HttpHelper.GetStream("http://ptlogin2.qq.com/getimage?aid=15000102&0.43878429697395826", cookie);
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- // picVerify.Image = Image.FromStream(s);
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- //---------------------------------------------------------------------------------------------------------------
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- /// <summary>
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- /// 获取字符流
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- /// </summary>
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- /// <param name="url">地址</param>
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- /// <param name="cookieContainer">cookieContainer</param>
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- public Stream GetStream(string url, CookieContainer cookieContainer)
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- {
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- _CurrentTry++;
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-
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- HttpWebRequest httpWebRequest = null;
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- HttpWebResponse httpWebResponse = null;
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-
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- try
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- {
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- httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
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- httpWebRequest.CookieContainer = cookieContainer;
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- httpWebRequest.ContentType = _ContentType;
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- httpWebRequest.ServicePoint.ConnectionLimit = MaxTry;
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- httpWebRequest.Referer = url;
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- httpWebRequest.Accept = _Accept;
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- httpWebRequest.UserAgent = _UserAgent;
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- httpWebRequest.Method = "GET";
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-
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- httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
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- Stream responseStream = httpWebResponse.GetResponseStream();
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- _CurrentTry--;
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- return responseStream;
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- }
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- catch (Exception)
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- {
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- if (_CurrentTry <= MaxTry)
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- {
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- GetHtml(url, cookieContainer);
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- }
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-
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- _CurrentTry--;
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-
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- if (httpWebRequest != null)
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- {
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- httpWebRequest.Abort();
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- }
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- if (httpWebResponse != null)
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- {
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- httpWebResponse.Close();
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- }
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- return null;
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- }
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- }
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-
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- #endregion 获取字符流
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-
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- #region 清除HTML标记
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-
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- /// <summary>
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- /// 清除HTML标记
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- /// </summary>
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- /// <param name="Htmlstring"></param>
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- /// <returns>已经去除后的文字</returns>
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- public string NoHTML(string Htmlstring)
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- {
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- //删除脚本
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- Htmlstring = Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", RegexOptions.IgnoreCase);
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-
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- //删除HTML
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- Regex regex = new Regex("<.+?>", RegexOptions.IgnoreCase);
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- Htmlstring = regex.Replace(Htmlstring, "");
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- Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"([\r\n])[\s]+", "", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
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-
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- Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", "\"", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "\xa1", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "\xa2", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "\xa3", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "\xa9", RegexOptions.IgnoreCase);
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- Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);", "", RegexOptions.IgnoreCase);
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-
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- Htmlstring.Replace("<", "");
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- Htmlstring.Replace(">", "");
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- Htmlstring.Replace("\r\n", "");
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-
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- return Htmlstring;
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- }
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-
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- #endregion 清除HTML标记
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-
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- #region 删除文本中带的HTML标记
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-
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- /// <summary>
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- /// 删除文本中带的HTML标记
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- /// </summary>
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- /// <param name="InString">输入要删除带HTML的字符串</param>
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- /// <returns>返回处理过的字符串</returns>
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- public string DelHtmlCode(string InString)
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- {
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- string strTemp = InString;
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- while (strTemp.Contains("<"))
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- {
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- if (!strTemp.Contains(">")) { break; } //当字符串内不包含">"时退出循环
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- int htmlBeginNum = strTemp.IndexOf("<");
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- int htmlEndNum = strTemp.IndexOf(">");
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- //删除从"<"到">"之间的所有字符串
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- strTemp = strTemp.Remove(htmlBeginNum, htmlEndNum - htmlBeginNum + 1);
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- }
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- strTemp = strTemp.Replace("\n", "");
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- strTemp = strTemp.Replace("\r", "");
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- strTemp = strTemp.Replace("\n\r", "");
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- strTemp = strTemp.Replace(" ", "");
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- strTemp = strTemp.Replace(" ", "");
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- strTemp = strTemp.Trim();
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- return strTemp;
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- }
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-
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- #endregion 删除文本中带的HTML标记
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-
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- #region 匹配页面的链接
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-
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- /// <summary>
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- /// 获取页面的链接正则
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- /// </summary>
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- public string GetHref(string HtmlCode)
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- {
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- string MatchVale = "";
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- string Reg = @"(h|H)(r|R)(e|E)(f|F) *= *('|"")?((\w|\\|\/|\.|:|-|_)+)[\S]*";
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- foreach (Match m in Regex.Matches(HtmlCode, Reg))
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- {
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- MatchVale += (m.Value).ToLower().Replace("href=", "").Trim() + "|";
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- }
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- return MatchVale;
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- }
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-
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- #endregion 匹配页面的链接
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-
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- #region 匹配页面的图片地址
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-
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- /// <summary>
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- /// 匹配页面的图片地址
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- /// </summary>
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- /// <param name="HtmlCode"></param>
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- /// <param name="imgHttp">要补充的http://路径信息</param>
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- /// <returns></returns>
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- public string GetImgSrc(string HtmlCode, string imgHttp)
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- {
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- string MatchVale = "";
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- string Reg = @"<img.+?>";
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- foreach (Match m in Regex.Matches(HtmlCode.ToLower(), Reg))
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- {
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- MatchVale += GetImg((m.Value).ToLower().Trim(), imgHttp) + "|";
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- }
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-
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- return MatchVale;
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- }
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-
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- /// <summary>
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- /// 匹配<img src="" />中的图片路径实际链接
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- /// </summary>
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- /// <param name="ImgString"><img src="" />字符串</param>
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- /// <param name="imgHttp"></param>
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- /// <returns></returns>
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- public string GetImg(string ImgString, string imgHttp)
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- {
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- string MatchVale = "";
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- string Reg = @"src=.+\.(bmp|jpg|gif|png|)";
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- foreach (Match m in Regex.Matches(ImgString.ToLower(), Reg))
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- {
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- MatchVale += (m.Value).ToLower().Trim().Replace("src=", "");
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- }
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- if (MatchVale.IndexOf(".net") != -1 || MatchVale.IndexOf(".com") != -1 || MatchVale.IndexOf(".org") != -1 || MatchVale.IndexOf(".cn") != -1 || MatchVale.IndexOf(".cc") != -1 || MatchVale.IndexOf(".info") != -1 || MatchVale.IndexOf(".biz") != -1 || MatchVale.IndexOf(".tv") != -1)
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- return (MatchVale);
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- else
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- return (imgHttp + MatchVale);
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- }
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-
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- #endregion 匹配页面的图片地址
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-
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- #region 抓取远程页面内容
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-
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- /// <summary>
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- /// 以GET方式抓取远程页面内容
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- /// </summary>
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- public string Get_Http(string tUrl)
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- {
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- string strResult;
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- try
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- {
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- HttpWebRequest hwr = (HttpWebRequest)WebRequest.Create(tUrl);
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- hwr.Timeout = 19600;
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- HttpWebResponse hwrs = (HttpWebResponse)hwr.GetResponse();
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- Stream myStream = hwrs.GetResponseStream();
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- StreamReader sr = new StreamReader(myStream, Encoding.Default);
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- StringBuilder sb = new StringBuilder();
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- while (-1 != sr.Peek())
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- {
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- sb.Append(sr.ReadLine() + "\r\n");
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- }
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- strResult = sb.ToString();
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- hwrs.Close();
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- }
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- catch (Exception ee)
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- {
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- strResult = ee.Message;
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- }
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- return strResult;
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- }
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-
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- /// <summary>
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- /// 以POST方式抓取远程页面内容
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- /// </summary>
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- /// <param name="url"></param>
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- /// <param name="postData">参数列表</param>
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- /// <param name="encodeType"></param>
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- /// <returns></returns>
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- public string Post_Http(string url, string postData, string encodeType)
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- {
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- string strResult;
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- try
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- {
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- Encoding encoding = Encoding.GetEncoding(encodeType);
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- byte[] POST = encoding.GetBytes(postData);
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- HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);
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- myRequest.Method = "POST";
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- myRequest.ContentType = "application/x-www-form-urlencoded";
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- myRequest.ContentLength = POST.Length;
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- Stream newStream = myRequest.GetRequestStream();
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- newStream.Write(POST, 0, POST.Length); //设置POST
|
|
|
- newStream.Close();
|
|
|
- HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
|
|
|
- StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.Default);
|
|
|
- strResult = reader.ReadToEnd();
|
|
|
- }
|
|
|
- catch (Exception ex)
|
|
|
- {
|
|
|
- strResult = ex.Message;
|
|
|
- }
|
|
|
- return strResult;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion 抓取远程页面内容
|
|
|
-
|
|
|
- #region 压缩HTML输出
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 压缩HTML输出
|
|
|
- /// </summary>
|
|
|
- public string ZipHtml(string Html)
|
|
|
- {
|
|
|
- Html = Regex.Replace(Html, @">\s+?<", "><");//去除HTML中的空白字符
|
|
|
- Html = Regex.Replace(Html, @"\r\n\s*", "");
|
|
|
- Html = Regex.Replace(Html, @"<body([\s|\S]*?)>([\s|\S]*?)</body>", @"<body$1>$2</body>", RegexOptions.IgnoreCase);
|
|
|
- return Html;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion 压缩HTML输出
|
|
|
-
|
|
|
- #region 过滤指定HTML标签
|
|
|
-
|
|
|
- /// <summary>
|
|
|
- /// 过滤指定HTML标签
|
|
|
- /// </summary>
|
|
|
- /// <param name="s_TextStr">要过滤的字符</param>
|
|
|
- /// <param name="html_Str">a img p div</param>
|
|
|
- public string DelHtml(string s_TextStr, string html_Str)
|
|
|
- {
|
|
|
- string rStr = "";
|
|
|
- if (!string.IsNullOrEmpty(s_TextStr))
|
|
|
- {
|
|
|
- rStr = Regex.Replace(s_TextStr, "<" + html_Str + "[^>]*>", "", RegexOptions.IgnoreCase);
|
|
|
- rStr = Regex.Replace(rStr, "</" + html_Str + ">", "", RegexOptions.IgnoreCase);
|
|
|
- }
|
|
|
- return rStr;
|
|
|
- }
|
|
|
-
|
|
|
- #endregion 过滤指定HTML标签
|
|
|
- }
|
|
|
-}
|
zhontai