Java 獲取當前服務器公網IP

public static void main(String[] args) {
        try {
            // 打開連接
            Document doc = Jsoup.connect("http://chaipip.com/").get();
            Elements eles = doc.select("#ip");
            System.out.println(eles.attr("value"));

        } catch (Exception e) {
            e.printStackTrace();
        }
}