C#采集数据类

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
{
    
/// <summary>
    
/// CaiJi 的摘要说明
    
/// </summary>

    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);
        }

  
     
#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();
         * *******************************
*/

        
/// <summary>
        
/// 日期随机函数
        
/// </summary>
        
/// <param name="ra">随机数</param>
        
/// <returns></returns>

        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(10000009999999).ToString();
            
return s;
        }

        
#endregion


        
#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 = @"
http://www.baidu.com/img/logo.gif";
         *          string s = o.GetFileExtends(url);
         *          Response.Write(s);
         *          o.Dispose();
         * *******************************
*/

        
/// <summary>
        
/// 取得文件后缀
        
/// </summary>
        
/// <param name="filename">文件名称</param>
        
/// <returns></returns>

        public string GetFileExtends(string filename)
        
{
            
string ext = null;
            
if (filename.IndexOf('.'> 0)
            
{
                
string[] fs = filename.Split('.');
                ext 
= fs[fs.Length - 1];
            }

            
return ext;
        }

        
#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();
         * *******************************
*/

        
/// <summary>
        
/// 获取远程文件源代码
        
/// </summary>
        
/// <param name="url">远程url</param>
        
/// <returns></returns>

        public string GetRemoteHtmlCode(string Url)
        
{
            
string s = "";
            MSXML2.XMLHTTP _xmlhttp 
= new MSXML2.XMLHTTPClass();
            _xmlhttp.open(
"GET", Url, falsenullnull);
            _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 = @"
http://www.baidu.com/img/logo.gif";
         *          string path =Server.MapPath("Html/");
         *          s = o.RemoteSave(url,path);
         *          Response.Write(s);
         *          o.Dispose();         
         * *****************************
*/

        
/// <summary>
        
/// 保存远程文件
        
/// </summary>
        
/// <param name="Url">远程url</param>
        
/// <param name="Path">保存到的路径</param>
        
/// <returns></returns>

        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, falsenullnull);
                _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
        
/**********************************
         * 函数名称:ReplaceEnter
         * 功能说明:替换网页中的换行和引号
         * 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.ReplaceEnter(HtmlCode);
         *          Response.Write(s);
         *          o.Dispose();
         * *******************************
*/

        
/// <summary>
        
/// 替换网页中的换行和引号
        
/// </summary>
        
/// <param name="HtmlCode">HTML源代码</param>
        
/// <returns></returns>

        public string ReplaceEnter(string HtmlCode)
        
{
            
string s = "";
            
if (HtmlCode == null || HtmlCode == "")
                s 
= "";
            
else
                s 
= HtmlCode.Replace("\"""");
            s = s.Replace("\r""");
            s 
= s.Replace("\n""");
            
return s;
        }


        
#endregion
               

        
#region 执行正则提取出值
        
/**********************************
         * 函数名称:GetRegValue
         * 功能说明:执行正则提取出值
         * 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.ReplaceEnter(HtmlCode);
         *          string Reg="<title>.+?</title>";
         *          string GetValue=o.GetRegValue(Reg,HtmlCode)
         *          Response.Write(GetValue);
         *          o.Dispose();
         * *******************************
*/

        
/// <summary>
        
/// 执行正则提取出值
        
/// </summary>
        
/// <param name="RegexString">正则表达式</param>
        
/// <param name="RemoteStr">HtmlCode源代码</param>
        
/// <returns></returns>

        public string  GetRegValue(string RegexString, string RemoteStr)
        
{
            
string MatchVale = "";
            Regex r 
= new Regex(RegexString);
            Match m 
= r.Match(RemoteStr);
            
if (m.Success)
            
{
                MatchVale 
= m.Value;
            }

            
return MatchVale;
        }

        
#endregion
        

        
#region 替换HTML源代码
        
/**********************************
         * 函数名称:RemoveHTML
         * 功能说明:替换HTML源代码
         * 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.ReplaceEnter(HtmlCode);
         *          string Reg="<title>.+?</title>";
         *          string GetValue=o.GetRegValue(Reg,HtmlCode)
         *          Response.Write(GetValue);
         *          o.Dispose();
         * *******************************
*/

        
/// <summary>
        
/// 替换HTML源代码
        
/// </summary>
        
/// <param name="HtmlCode">html源代码</param>
        
/// <returns></returns>

        public string RemoveHTML(string HtmlCode)
        
{
            
string MatchVale = HtmlCode;          
            
foreach (Match s in Regex.Matches(HtmlCode, "<.+?>"))
            
{
                MatchVale 
= MatchVale.Replace(s.Value, "");
            }

            
return MatchVale;        
        }


        
#endregion


        
#region 匹配页面的链接
        
/**********************************
         * 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.GetHref(HtmlCode);
         *          Response.Write(s);
         *          o.Dispose();
         * *******************************
*/

        
/// <summary>
        
/// 获取页面的链接正则
        
/// </summary>
        
/// <param name="HtmlCode"></param>
        
/// <returns></returns>

        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:<img src="bb/x.gif">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();
         * *******************************
*/

        
/// <summary>
        
/// 匹配页面的图片地址
        
/// </summary>
        
/// <param name="HtmlCode"></param>
        
/// <param name="imgHttp">要补充的http://路径信息</param>
        
/// <returns></returns>

        public string GetImgSrc(string HtmlCode, string imgHttp)
        
{
            
string MatchVale = "";
            
string Reg = @"<img.+?>";
            
foreach (Match m in Regex.Matches(HtmlCode.ToLower(), Reg))
            
{
                MatchVale 
+= GetImg((m.Value).ToLower().Trim(), imgHttp) + "|";
            }

            
            
return MatchVale;
        }

        
/// <summary>
        
/// 匹配<img src="" />中的图片路径实际链接
        
/// </summary>
        
/// <param name="ImgString"><img src="" />字符串</param>
        
/// <returns></returns>

        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,"<title>","</title>");
         *          Response.Write(s);
         *          o.Dispose();
         * *******************************
*/

        
/// <summary>
        
/// 替换通过正则获取字符串所带的正则首尾匹配字符串
        
/// </summary>
        
/// <param name="RegValue">要替换的值</param>
        
/// <param name="regStart">正则匹配的首字符串</param>
        
/// <param name="regEnd">正则匹配的尾字符串</param>
        
/// <returns></returns>

        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



     


}


}
posted @ 2007-12-16 15:17  永恒一生  阅读(3053)  评论(1编辑  收藏  举报