也不错的选择是使用abs:href或abs:src属性:

also a good option is to use the abs:href or abs:src attributes:

String relHref = link.attr("href"); // == "/"
String absHref = link.attr("abs:href"); // "http://jsoup.org/"

这里也有描述: http://jsoup.org/cookbook/extracting-data/working-with-urls