Search and find variable values within html page in java jsoup

Question

In the html page there is a javascript like the below and i want to extract the values of the var number.

<script type="text/javascript">
 var number= 4443;
</script>

I am using jsoup to parse an html page using this command.

org.jsoup.nodes.Document doc3 = Jsoup.connect("http://htmlpage.com").get();

How can i do it ? Thank you all in advance.

Answer 1

Jsoup is a HTML parser, not a JS parser. Best what you could get with Jsoup is getting the HTML <script> element(s).

Elements scripts = doc3.select("script");

Its contents has then to be extracted as text by Element#text() and parsed further by a different library which is capable of parsing JS code, such as Mozilla Rhino. You could of course also perform trivial String parsing using indexOf() , substring() , etc methods or perhaps even using some good regex.