多个常用类 集合
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#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/";
* strion 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/";
* strion 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/";
* strion 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|\\|\/|\.|:|-|_)+)('|""| *|>)?";
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/";
* strion 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, 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=","");
}
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/";
* strion 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
}
}
