在Jsoup中，如何通过属性而不是数据来解析CSS查询？

Question

In Jsoup when I parse the URL http://www.singaporepools.com.sg/Lottery?page=wc_four_d with the CSS Query option , I get "Select a draw date" for my first element, with the query of <option selected="selected"> .

In my code, how do I get Jsoup to return that " <option selected="selected"> ", instead of the data?

Answer 1

Use:

option[selected]

It means "every option element that has a selected attribute" .

That should work for you (see example below). Alternatively, if there were more than one option with the attribute selected , you could specify the attribute value: option[selected="selected"] .

Learn more in CSS Attribute Selectors .

Jsoup working example:

public static void main(String[] args) throws Exception {
    Document doc = Jsoup.connect("http://www.singaporepools.com.sg/Lottery?page=wc_four_d").get();
    Elements content = doc.select("option[selected]");
    System.out.println(content);
}

Output:

<option selected="selected">Select a draw date</option>