如何解析完整的html并仅获取基本href url值

BackendProxyResponse backendImageUrlResponse = courseProxy.getImageUrl(schoolUrl); if (backendImageUrlResponse != null && backendImageUrlResponse.getObject() != null && backendImageUrlResponse.getObject().getValue()!=null) { List coursesList = Lists.newArrayList(); org.jsoup.nodes.Document doc = Jsoup.parse(schoolUrl); Element elements = doc.select("<base href").first();
String imageUrl = elements.attr("=="); if(coursesList != null && coursesList.size() > 0) { for(int i = 0; i < courses.size(); i++) for (String element : coursesList) { if(courses.get(i).getId().contains(element)) courses.get(i).setIsImageUrl(imageUrl); } } } }