/// <summary>
/// 提取采集规则返回一个单元格
/// </summary>
/// <param name="rule">采集规则</param>
/// <returns>采集结果</returns>
private string ExtractionColumn(ExtractionRule r)
{
string result = _htmlText;
//采集时间作为结果
if (r.TimeAsResult)
{
return(DateTime.Now.ToString());
}
//将固定值最为结果
if (r.ConstantAsResult && !r.Static)
{
return(r.ConstantValue);
}
//记录当前网址
if (r.UrlAsResult)
{
return(_response.ResponseUri.AbsoluteUri);
}
//响应头作为结果
if (r.ResponseHeaderAsResult)
{
return(_response.Headers[r.ResponseHeaderName]);
}
//if(extractionRule.PostParametersAsResult) return this.HttpHelper.WebRequest.GetRequestStream(); //POST参数作为结果
//if (extractionRule.LinkTextAsResult) return ""; //链接文本作为结果
//截取内容
result = Smart.Utility.StringHelper.SubString(result, r.PreviousFlag, r.FollowingFlag);
//使用正则表达式采集结果
if (r.Static)
{
//如果静态规则选中，则固定值值作为结果为正则表达式。
MatchCollection coll = Regex.Matches(result, r.ConstantValue);
result = string.Empty;
foreach (Match m in coll)
{
result += m.Value;
}
}
//采集结果替换
result = ResultReplace(result, r.Replacements);
//过滤Html标记
result = FilterHtmlMark(result, r.ReservedHtmlMarks);
//过滤掉无效字符：空格、换行符、制表符
result = result.Replace(" ", "");
result = result.Replace("\t", "");
result = result.Replace("\n", "");
result = result.Replace("\r", "");
result = result.Trim();
return(result);
}
/// <summary>
/// 提取采集规则返回一个单元格
/// </summary>
/// <param name="rule">采集规则</param>
/// <returns>采集结果</returns>
private string ExtractionColumn(ExtractionRule r) {
string result = _htmlText;
//采集时间作为结果
if (r.TimeAsResult) {
return DateTime.Now.ToString();
}
//将固定值最为结果
if (r.ConstantAsResult && !r.Static) {
return r.ConstantValue;
}
//记录当前网址
if (r.UrlAsResult) {
return _response.ResponseUri.AbsoluteUri;
}
//响应头作为结果
if (r.ResponseHeaderAsResult) {
return _response.Headers[r.ResponseHeaderName];
}
//if(extractionRule.PostParametersAsResult) return this.HttpHelper.WebRequest.GetRequestStream(); //POST参数作为结果
//if (extractionRule.LinkTextAsResult) return ""; //链接文本作为结果
//截取内容
result = Smart.Utility.StringHelper.SubString(result, r.PreviousFlag, r.FollowingFlag);
//使用正则表达式采集结果
if (r.Static) {
//如果静态规则选中，则固定值值作为结果为正则表达式。
MatchCollection coll = Regex.Matches(result, r.ConstantValue);
result = string.Empty;
foreach (Match m in coll) {
result += m.Value;
}
}
//采集结果替换
result = ResultReplace(result, r.Replacements);
//过滤Html标记
result = FilterHtmlMark(result, r.ReservedHtmlMarks);
//过滤掉无效字符：空格、换行符、制表符
result = result.Replace(" ", "");
result = result.Replace("\t", "");
result = result.Replace("\n", "");
result = result.Replace("\r", "");
result = result.Trim();
return result;
}