JSOUP get element with multiple classes

问题:

I am trying to read all <div>s with the class = "listitem show-in-category" from an HTML page. Furthermore, I want to get the itemprop fields like itemprop="description" and itemprop="image" under each . An example of the <div> is below:

<div class="listitem show-in-category">
    <img itemprop="image" alt="For the Trumpets Shall Sound" class="poster pull-left" src=
    "/images/shows/rectangle-poster/resized/188x282/4423-1390493634-forthetrumpets-rec.jpg"
    title="For the Trumpets Shall Sound">

    <h2 itemprop="name"><a href=
    "http://www.londonboxoffice.co.uk/for-the-trumpets-shall-sound-tickets">
    For the Trumpets Shall Sound</a></h2>

    <p itemprop="description"><p>Ruth is clearing out her Mother's attic, with the help of her son
    Jamie, when they make an interesting discovery.<br>
    <br></p>
</div>

On the JSOUP selector page, it is stated that I can access all divs by class name as:

Elements mydesiredclass = doc.select("div.class")

1) However, for the class name above this does not work, probably since the class name has spaces? What syntax should I use to get all divs with the given class name?

2) Also, once I manage to get all divs and am looping through them, how can I get their description and img properties?

回答1:

The spaces in the class name are actually separator between class names. So the div is part of two classes, namely listitem and show-in-category

If you must select only elements that match both classes, you can do this:

Elements mydesiredElems = doc.select("div.listitem.show-in-category")

The dot followed by a class name is the css selector for a class. They can be concatenated and that results in adding this class as a requirement to match the element.

About your second question: Jsoup can easily get the img element for you. Suppose that myDivEl is one of your divs

Element imgEl = myDivEl.select("img");
String altStr = imgEl.attr("alt");
String titleStr = imgEl.attr("title");

UPDATE after question was edited to point out what the OP wants:

Element itemPropPEl = myDivEl.select("p[itemprop=description]");
String descStr = itemPropPEl.text();