ASP.NET(C#)经典采集代码

/**//**********************************
* 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

执行正则提取出值#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

替换HTML源代码#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); 中国网管联盟bitsCN.com
* 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

匹配页面的链接#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();
* ********************************/

#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, 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();
* ******************************/
/**//// <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; 网管网www_bitscn_com

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)
{ 网管u家www.bitscn.net

}
return newfilename;
}
#endregion

替换网页中的换行和引号#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(); 网管联盟bitsCN@com
* 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

执行正则提取出值#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

替换HTML源代码#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); 中国网管联盟bitsCN.com
* 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)) 网管下载dl.bitscn.com
{
MatchVale += (m.Value).ToLower().Replace("href=", "").Trim() + "|";
}
return MatchVale;
}
#endregion

匹配页面的图片地址#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

替换通过正则获取字符串所带的正则首尾匹配字符串#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 网管朋友网www_bitscn_net
}

}