htmlunit execute page javascript

Question

I am trying get the content of a web page after the execution of the javascript code in the page. Let's suppose for example that I have the following page :

<html>
<body>
  test:
  <div id="inner"></div>
  <script type="text/javascript">
    document.getElementById('inner').innerHTML = "Hello World!";
</script>
</body>
</html>

what I want to extract is the page after the execution of the javascript, so the rendered html :

<html>
<body>
  test:
  <div id="inner">Hello World</div>
</script>
</body>
</html>

Is it possible in htmlUnit?

possible duplicate of HTMLUnit executing form with javascript code or HTMLUnit doesn't wait for Javascript — h2ooooooo
– h2ooooooo, Commented Nov 7, 2013 at 12:04
Well, this is not a duplicate. I wait only for the page to load. The script is executed when the page is loaded. Does it have the same ?? — pokeRex110
– pokeRex110, Commented Nov 7, 2013 at 16:44

Community · Accepted Answer · 2017-05-23 12:06:06Z

3

I'm not sure what issue you are having with that code but it works perfectly for me.

I created a file with that content and the result I got from fetching the content of the page was:

<?xml version="1.0" encoding="ISO-8859-1"?>
<html>
  <head/>
  <body>

  test:

    <div id="inner">
      Hello World!
    </div>
    <script type="text/javascript">
//<![CDATA[

    document.getElementById('inner').innerHTML = "Hello World!";

//]]>
    </script>
  </body>
</html>

This is all the code you need:

WebClient webClient = new WebClient();
HtmlPage page = webClient.getPage("the_url");
System.out.println(page.asXml());

You might also find this question useful:

JavaScript not being properly executed in HtmlUnit

edited May 23, 2017 at 12:06

CommunityBot

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answered Nov 7, 2013 at 17:08

Mosty Mostacho

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Comments

Dropout · Accepted Answer · 2013-11-07 12:24:43Z

1

I hope I understood your question correctly. htmlUnit does support execution of JavaScript code.. Check out this tutorial it might help you get started.

Also if you're doing application testing in a professional enviroment, especially if it's on a larger scale, then I would like to advice you to use something a bit more advanced than htmlUnit, for example Selenium.

answered Nov 7, 2013 at 12:24

Dropout

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