ASP.NET中用C#实现的采集代码:

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using System;    using System.Data;    using System.Configuration;    using System.Web;    using System.Web.Security;    using System.Web.UI;    using System.Web.UI.WebControls;    using System.Web.UI.WebControls.WebParts;    using System.Web.UI.HtmlControls;    using System.Drawing;    using MSXML2;    using System.Text.RegularExpressions;    namespace wenweifeng    {        /**////         /// CaiJi 的摘要说明        ///         public class CaiJi        {            public CaiJi()            {                //                // TODO: 在此处添加构造函数逻辑                //            }            ~CaiJi()            {                Dispose();            }            public void Dispose()            {             GC.SuppressFinalize(this);            }         日期随机函数#region 日期随机函数            /**//**********************************             * 函数名称:DateRndName             * 功能说明:日期随机函数             * 参    数:ra:随机数             * 调用示例:             *          GetRemoteObj o = new GetRemoteObj();             *          Random ra = new Random();    *          string s = o.DateRndName(ra);             *          Response.Write(s);             *          o.Dispose();             * ********************************/            /**////             /// 日期随机函数            ///             /// 随机数            ///             public  string DateRndName(Random ra)            {                DateTime d = DateTime.Now;                string s = null, y, m, dd, h, mm, ss;                y = d.Year.ToString();                m = d.Month.ToString();                if (m.Length < 2) m = "0" + m;                dd = d.Day.ToString();                if (dd.Length < 2) dd = "0" + dd;                h = d.Hour.ToString();                if (h.Length < 2) h = "0" + h;                mm = d.Minute.ToString();                if (mm.Length < 2) mm = "0" + mm;                ss = d.Second.ToString();             if (ss.Length < 2) ss = "0" + ss;                s += y + ’,’ + m + ’,’ + dd + ’,’ + h + "-" + mm + "-" + ss;                s += ra.Next(1000000, 9999999).ToString();                return s;            }            #endregion            取得文件后缀#region 取得文件后缀            /**//**********************************             * 函数名称:GetFileExtends             * 功能说明:取得文件后缀             * 参    数:filename:文件名称             * 调用示例:             *          GetRemoteObj o = new GetRemoteObj();             *          string url = @"             *          string s = o.GetFileExtends(url);             *          Response.Write(s);             *          o.Dispose();             * ********************************/            /**////             /// 取得文件后缀            ///             /// 文件名称            ///             public string GetFileExtends(string filename)            {                string ext = null;                if (filename.IndexOf(’.’) > 0)                {                    string[] fs = filename.Split(’.’);                    ext = fs[fs.Length - 1];                }                return ext;            }            #endregion获取远程文件源代码#region 获取远程文件源代码            /**//**********************************             * 函数名称:GetRemoteHtmlCode             * 功能说明:获取远程文件源代码             * 参    数:Url:远程url             * 调用示例:             *          GetRemoteObj o = new GetRemoteObj();             *          string url = @"http://www.baidu.com";             *          string s = o.GetRemoteHtmlCode(url);             *          Response.Write(s);             *          o.Dispose();             * ********************************/            /**////             /// 获取远程文件源代码            ///             /// 远程url            ///             public string GetRemoteHtmlCode(string Url)            {                string s = "";                MSXML2.XMLHTTP _xmlhttp = new MSXML2.XMLHTTPClass();                _xmlhttp.open("GET", Url, false, null, null);                _xmlhttp.send("");                if (_xmlhttp.readyState == 4)                {                    s = System.Text.Encoding.Default.GetString((byte[])_xmlhttp.responseBody);                }                return s;            }            #endregion            保存远程文件#region 保存远程文件            /**//**********************************             * 函数名称:RemoteSave             * 功能说明:保存远程文件             * 参    数:Url:远程url;Path:保存到的路径             * 调用示例:             *          GetRemoteObj o = new GetRemoteObj();             *          string s = "";             *          string url = @"              *          string path =Server.MapPath("Html/");             *          s = o.RemoteSave(url,path);             *          Response.Write(s);             *          o.Dispose();             * ******************************/            /**////             /// 保存远程文件            ///             /// 远程url            /// 保存到的路径            ///             public string RemoteSave(string Url, string Path)            {                Random ra = new Random();                string newfilename = string.Empty;                string StringFileName = DateRndName(ra) + "." + GetFileExtends(Url);                if (GetFileExtends(Url).Trim().ToLower() != "jpg")                    newfilename = StringFileName;                else                    newfilename = DateRndName(ra) + "Addpic." + GetFileExtends(Url);                string StringFilePath = Path + StringFileName;            string newfilepath = Path + newfilename;                string retname = string.Empty;                try                {                    MSXML2.XMLHTTP _xmlhttp = new MSXML2.XMLHTTPClass();                    _xmlhttp.open("GET", Url, false, null, null);                    _xmlhttp.send("");                    if (_xmlhttp.readyState == 4)                    {                        if (System.IO.File.Exists(StringFilePath))                            System.IO.File.Delete(StringFilePath);                        System.IO.FileStream fs = new System.IO.FileStream(StringFilePath, System.IO.FileMode.CreateNew);                        System.IO.BinaryWriter w = new System.IO.BinaryWriter(fs);                        w.Write((byte[])_xmlhttp.responseBody);                        w.Close();                        fs.Close();                        if (GetFileExtends(Url).Trim().ToLower() == "jpg")                        {                         function myfunction = new function();                            //myfunction.AddShuiYinWord(StringFilePath, newfilepath);                            service myserver=new service();                            myfunction.AddShuiYinPic(StringFilePath, newfilepath, HttpContext.Current.Server.MapPath(myserver.myweblogo));                        }                    }                    else                        throw new Exception(_xmlhttp.statusText);                }                catch (Exception ex)                {                }                return newfilename;            }            #endregion#region 获取远程文件源代码            /**//**********************************             * 函数名称:GetRemoteHtmlCode             * 功能说明:获取远程文件源代码             * 参    数:Url:远程url             * 调用示例:             *          GetRemoteObj o = new GetRemoteObj();             *          string url = @"http://www.baidu.com";             *          string s = o.GetRemoteHtmlCode(url);             *          Response.Write(s);             *          o.Dispose();             * ********************************/            /**////             /// 获取远程文件源代码            ///             /// 远程url            ///             public string GetRemoteHtmlCode(string Url)            {                string s = "";                MSXML2.XMLHTTP _xmlhttp = new MSXML2.XMLHTTPClass();                _xmlhttp.open("GET", Url, false, null, null);                _xmlhttp.send("");                if (_xmlhttp.readyState == 4)                {                    s = System.Text.Encoding.Default.GetString((byte[])_xmlhttp.responseBody);                }                return s;            }            #endregion            #region 保存远程文件            /**//**********************************             * 函数名称:RemoteSave             * 功能说明:保存远程文件             * 参    数:Url:远程url;Path:保存到的路径             * 调用示例:             *          GetRemoteObj o = new GetRemoteObj();             *          string s = "";             *          string url = @"              *          string path =Server.MapPath("Html/");             *          s = o.RemoteSave(url,path);             *          Response.Write(s);             *          o.Dispose();             * ******************************/            /**////             /// 保存远程文件            ///             /// 远程url            /// 保存到的路径            ///             public string RemoteSave(string Url, string Path)            {                Random ra = new Random();                string newfilename = string.Empty;                string StringFileName = DateRndName(ra) + "." + GetFileExtends(Url);                if (GetFileExtends(Url).Trim().ToLower() != "jpg")                    newfilename = StringFileName;                else                    newfilename = DateRndName(ra) + "Addpic." + GetFileExtends(Url);                string StringFilePath = Path + StringFileName;            string newfilepath = Path + newfilename;                string retname = string.Empty;                try                {                    MSXML2.XMLHTTP _xmlhttp = new MSXML2.XMLHTTPClass();                    _xmlhttp.open("GET", Url, false, null, null);                    _xmlhttp.send("");                    if (_xmlhttp.readyState == 4)                    {                        if (System.IO.File.Exists(StringFilePath))                            System.IO.File.Delete(StringFilePath);                        System.IO.FileStream fs = new System.IO.FileStream(StringFilePath, System.IO.FileMode.CreateNew);                        System.IO.BinaryWriter w = new System.IO.BinaryWriter(fs);                        w.Write((byte[])_xmlhttp.responseBody);                        w.Close();                        fs.Close();                        if (GetFileExtends(Url).Trim().ToLower() == "jpg")                        {                         function myfunction = new function();                            //myfunction.AddShuiYinWord(StringFilePath, newfilepath);                            service myserver=new service();                            myfunction.AddShuiYinPic(StringFilePath, newfilepath, HttpContext.Current.Server.MapPath(myserver.myweblogo));                        }                    }                    else                        throw new Exception(_xmlhttp.statusText);                }                catch (Exception ex)                {                }                return newfilename;            }            #endregion            #region 替换网页中的换行和引号/**////             /// 获取页面的链接正则            ///             ///             ///             public string GetHref(string HtmlCode)            {                string MatchVale = "";                string Reg = @"(h|H)(r|R)(e|E)(f|F) *= *(’|"")?((/w|//|//|/.|:|-|_)+)[/S]*";                foreach(Match m in Regex.Matches(HtmlCode,Reg))                {                    MatchVale += (m.Value).ToLower().Replace("href=", "").Trim() + "|";                }                return MatchVale;            }            #endregion               }    }#region 匹配页面的图片地址            /**//**********************************             * 函数名称:GetImgSrc             * 功能说明:匹配页面的图片地址             * 参    数:HtmlCode:html源代码;imgHttp:要补充的http.当比如:则要补充http://www.baidu.com/,当包含http信息时,则可以为空             * 调用示例:             *          GetRemoteObj o = new GetRemoteObj();             *          string Url = @"http://www.baidu.com";             *          string HtmlCode = o.GetRemoteHtmlCode(Url);             *          string s = o.GetImgSrc(HtmlCode,"http://www.baidu.com/");             *          Response.Write(s);             *          o.Dispose();             * ********************************/            /**////             /// 匹配页面的图片地址            ///             ///             /// 要补充的http://路径信息            ///             public string GetImgSrc(string HtmlCode, string imgHttp)            {                string MatchVale = "";                string Reg = @"";                 foreach (Match m in Regex.Matches(HtmlCode.ToLower(), Reg))                {                    MatchVale += GetImg((m.Value).ToLower().Trim(), imgHttp) + "|";                }                return MatchVale;            }            /**////             /// 匹配中的图片路径实际链接            ///             /// 字符串            ///             public string GetImg(string ImgString, string imgHttp)            {                string MatchVale = "";                string Reg = @"src=.+/.(bmp|jpg|gif|png|)";                foreach (Match m in Regex.Matches(ImgString.ToLower(), Reg))                {                    MatchVale += (m.Value).ToLower().Trim().Replace("src=","");                }                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)              return (MatchVale);                else                return (imgHttp+MatchVale);            }            #endregion            #region 替换通过正则获取字符串所带的正则首尾匹配字符串            /**//**********************************             * 函数名称:GetHref             * 功能说明:匹配页面的链接             * 参    数:HtmlCode:html源代码             * 调用示例:             *          GetRemoteObj o = new GetRemoteObj();             *          string Url = @"http://www.baidu.com";             *          string HtmlCode = o.GetRemoteHtmlCode(Url);             *          string s = o.RegReplace(HtmlCode,"");             *          Response.Write(s);             *          o.Dispose();             * ********************************/            /**////             /// 替换通过正则获取字符串所带的正则首尾匹配字符串            ///             /// 要替换的值            /// 正则匹配的首字符串            /// 正则匹配的尾字符串            ///             public string RegReplace(string RegValue, string regStart,string regEnd)            {                string s = RegValue;                if (RegValue != "" && RegValue != null)                {                    if (regStart != "" && regStart != null)                    {                        s = s.Replace(regStart, "");                    }                    if (regEnd != "" && regEnd != null)                    {                        s = s.Replace(regEnd, "");                    }                }                return s;            }            #endregion