Java jSoup元素替换缺少的元素

Question

I'm crawling a website using jSoup to obtain information from the adverts it displays. Most the adverts contain common elements but for some they are missing. I'm trying to crawl for all of the adverts, whilst including those that don't share the common elements, but I'm struggling. Here's the basics of what I've got:

    Elements gene = doc.select("div.item");

    for (Element c : gene) {

                    Elements monk1 = c.select("li.cool");
                    Elements monk2 = c.getElementsByAttributeValueContaining("src", "/images/notthere.gif");

                    if (monk1.isEmpty()) {
                       monk1 = monk2;
                    }
                    String[] price = {monk1.text()};
                    model1.setValueAt(price[0], xf, 2);
                    xf++;
                    xf++;

                }

It looks for elements within the elements "gene" in the HTML. "li.cool" is present in most of the "gene" elements, but for some its missing. For each time "li.cool" is missing, I want to replace the null element with a simple string. How do I do this??

Answer 1

You can add text using text() method.

if(monk1 == null)
monk1.text("string")

You can view the explanation here .