HTMLunit iterate nodes

Question

I try iterate html nodes and getting information from this nodes.

This is html example:

<div class="less1">
  <h4>Test name 1</h4>
  <div>
     <div id="email">test1@test.com</div>
     <div id="email">test2@test.com</div>
     <div id="email">test3@test.com</div>
  </div>
</div>
<div class="less1">
  <h4>Test name 2</h4>
  <div>
     <div id="email">test_name1@test.com</div>
     <div id="email">test_name2@test.com</div>
     <div id="email">test_name3@test.com</div>
  </div>
</div>
<div class="less1">
  <h4>Test name 3</h4>
  <div>
     <div id="email">test_name_3@test.com</div>
  </div>
</div>
<div class="less1">
  <h4>Test name 4</h4>
</div>

This is my code example.

final List<HtmlListItem> nodes = htmlPage.getByXPath("//*[@class=\"less1\"]");

for (HtmlListItem node: nodes) {
   final List<?> divs = node.getByXPath("//h4/text()");
}

"divs" List size is always 4.

Is it possible get only 1 result from current node?

Answer 1

To get only the first matching element use getFirstByXPath:

final List<?> divs = node.getFirstByXPath("//h4/text()");

If you need a specific element by index:

final Object div = node.getByXPath("//h4/text()").get(index);

UPDATE

Maybe the problem is the usage of an absolute xpath. Try to use a relative path on every node:

String text = node.getByXPath("h4/text()");
List<String> emails = node.getByXPath("div/div");

Otherwise you can extract data from every node exploring the child nodes

for (HtmlListItem node: nodes) {
    NodeList children = node.getChildNodes();
    for (int i = 0; i < children.getLength(); i++) {
       Node child = children.item(i);
       /** extract data from child **/
    }       
}