Use Jsoup to select an HTML element with no class

问题

Consider an html document like this one

<div>
    <p>...</p>
    <p>...</p>
    ...
    <p class="random_class_name">...</p>
    ...
</div>

How could we select all of the p elements, but excluding the p element with random_class_name class?

回答1:

Elements ps = body.select("p:not(.random_class_name)");

You can use the pseudo selector :not

If the class name is not known, you still can use a similar expression:

Elements ps = body.select("p:not([class])");

In the second example I use the attribute selector [], in the first the normal syntax for classes.

See the Jsoup docu about css selectors

回答2:

Document doc = Jsoup.parse(htmlValue);
    Elements pElements = doc.select("p");         
    for (Element element : pElements) {
        String class = element.attr("class");
        if(class == null){
            //.....
        }else{
             //.....
        }
    }

来源：https://stackoverflow.com/questions/31440864/use-jsoup-to-select-an-html-element-with-no-class