code: public List<HtmlTemplate> getHtmlTemplate(String urlString) {
          List<HtmlTemplate> pageTemplates = new ArrayList<>();
          if (urlPatternMap != null) {
              try {
                  URL url = new URL(urlString);
                  String key = urlPrefix(url);
                  List<UrlPattern> patterns = urlPatternMap.get(key);
                  for (UrlPattern urlPattern : patterns) {
                      Matcher matcher = urlPattern.getRegexPattern().matcher(urlString);
                      if (matcher.find()) {
                          //匹配成功
                          pageTemplates.addAll(urlPattern.getHtmlTemplates());
                      }
                  }
              } catch (Exception e) {
                  LOGGER.error("获取URL抽取规则失败：" + urlString, e);
              }
          }
          return pageTemplates;
      }
docs: 获取一个可以用来抽取特定URL的页面模板集合
  
  @param urlString url
  @return 页面模板集合