如何从一组元素中删除一个元素? [英] How to remove an element from a group of elements?

问题描述

给出以下代码:

HTML:

<div>a</div>
<div>b</div>
<div>c</div>

JS:

Document doc = Jsoup.parse(baseHtml);
Elements elements = doc.select("div");
elements.get(1).remove();
// remove doesn't affect elements. why?
elements.size();   // equal 3
// but this works
doc.outerHtml() // <div>a</div><div>c</div>

我是否必须使用此代码来获取已删除的元素?看来太冗长了.

Do I have to use this code to get removed elements? It seems too verbose.

Document doc = Jsoup.parse(baseHtml);
Elements elements = doc.select("div");
elements.get(1).remove();
elements = doc.select("div");

推荐答案

这应该对您有帮助:

public class TestJsoup {

    public static void main(String[] args) {
        try {
            Document doc = Jsoup.connect("http://www.google.ro").get();
            Elements select = doc.select("div");
            System.out.println(select.size());
            select.remove(1);
            System.out.println(select.size());
        } catch (IOException ex) {
            Logger.getLogger(TestJsoup.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

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