parsing html with css selector jsoup

Question

I'm trying to get the value shown in the image below from www.dolarhoy.com

I use jsoup to do thinks like this, but the following code is not working.

private static String obtenerCotizacion() throws IOException {
    Document docDolarHoy = Jsoup.connect("http://www.dolarhoy.com").get();

    String dolar= docDolarHoy.select("div.col-md-6.venta > h4 > span").first().text();
    System.out.println("dolarHoy: " + dolar); 

    return dolar;
}

}

also probe
String dolar= docDolarHoy.select("body > div.container.body-content > div > div > div.col-md-8 > div.row > div.col-md-6.venta > h4 > span").first().text();

and

String dolar= docDolarHoy.select("div.col-md-6:nth-child(2) > h4:nth-child(1) > span:nth-child(1)").first().text();

this gives me back a empty value.

Any suggestion?

Thanks!

TDG · Accepted Answer · 2018-08-22 17:59:46Z

3

Using my browser's developer tools I got the following selector - div.col-md-6:nth-child(2) > h4:nth-child(1) > span:nth-child(1).
If you still don't get it - add the userAgent string of your browser to the get request, something like -

Document docDolarHoy = Jsoup.connect("http://www.dolarhoy.com")
    .userAgent("Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0")
    .get();

EDIT After some trials the full working code (minus exception handling) is:

Public static void main(String[] args) throws IOException {

    Document docDolarHoy = Jsoup.connect("http://www.dolarhoy.com")
            .userAgent("Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0")
            .get();
    String dolar= docDolarHoy.select("div.col-md-6.venta > h4 > span").first().text();
    System.out.println("dolarHoy: " + dolar);
    System.out.println(docDolarHoy.html());     
}

And the output:

dolarHoy: $ 30.84

edited Aug 22, 2018 at 17:59

answered Aug 21, 2018 at 19:28

TDG

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7 Comments

mmayer Over a year ago

this keeps returning an empty value

TDG Over a year ago

public class Main { public static void main(String[] args) throws IOException { Document docDolarHoy = Jsoup.connect("dolarhoy.com") .userAgent("Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0") .get(); String dolar= docDolarHoy.select("div.col-md-6.venta > h4 > span").first().text(); System.out.println("dolarHoy: " + dolar); } }

TDG Over a year ago

output: dolarHoy: $ 30.84

mmayer Over a year ago

Hi, if a use "dolarhoy.com" it returns Malformed URL: dolarhoy.com and if a use "dolarhoy.com" it throws nullpointer

TDG Over a year ago

Right, when I've pasted my code as a comment SO changed it. It should be http : // www . dolarhoy.com without the spaces of course.

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