Java – how to use jsoup to get hidden input values?

I have data

<input name="authenticity_token" type="hidden" value="aiUlw1Yh4W47lPQearSEdTkU0rhKpziZOweq5PMTV0Q=" />

I tried to choose it with jsup

Element input = doc.select("input[name=authenticity_token]").first();

 String auth_token = input.attr("value");

But it doesn't work

I got string auth_ Null pointer of token = is abnormal

What on earth did I do wrong?

Solution

If you check this demo, you will find that there is no problem at all in this case and you have selected input

I believe there may be another input with the same name but no value If this is not the case, please post the problem on the jsoup GitHub page