public string GetResult(string Txt, string Xpath, T parm)
{
HtmlAgilityPack.HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(Txt);
var node = doc.DocumentNode.SelectSingleNode(Xpath);
XpathPam xpathparm = BaseParm.ConvertParm <XpathPam>(parm);
if (node == null)
{
return(String.Empty);
}
//null 校验是否存在
if (xpathparm.InnerHtml)
{
return(node.InnerHtml);
}
//非null校验值
else if (!String.IsNullOrEmpty(xpathparm.Attr))
{
return(node.Attributes[xpathparm.Attr]?.Value);
}
else
{
return(node.InnerText);
}
}
public List <string> GetResults(string Txt, string Xpath, T parm)
{
List <String> list = new List <string>();
HtmlAgilityPack.HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(Txt);
var nodes = doc.DocumentNode.SelectNodes(Xpath);
XpathPam xpathparm = BaseParm.ConvertParm <XpathPam>(parm);
if (nodes?.Count > 0)
{
foreach (var node in nodes)
{
//null 校验是否存在
if (xpathparm.InnerHtml)
{
list.Add(node.InnerHtml);
}
//非null校验值
else if (!String.IsNullOrEmpty(xpathparm.Attr))
{
list.Add(node.Attributes[xpathparm.Attr]?.Value);
}
else
{
list.Add(node.InnerText);
}
}
}
return(list);
}
public bool Check(string Txt, string Xpath, T parm)
{
HtmlAgilityPack.HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(Txt);
var node = doc.DocumentNode.SelectSingleNode(Xpath);
XpathPam xpathparm = BaseParm.ConvertParm <XpathPam>(parm);
if (node == null)
{
return(false);
}
//null 校验是否存在
if (String.IsNullOrEmpty(xpathparm.CheckStr))
{
return(true);
}
//非null校验值
else
{
String value = String.Empty;
//没有属性值直接取innertext
if (!String.IsNullOrEmpty(xpathparm.Attr))
{
value = node.InnerText;
}
else
{
value = node.Attributes[xpathparm.Attr]?.Value;
}
return(value.Equals(xpathparm.CheckStr, xpathparm.caseoption));
}
}