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Java Jsoup Submitting a form

I am trying to figure out how to submit a form using Jsoup.
On Xfinity's website, I am trying to input an address and get back the resulting page after clicking on "Show me deals" from the url below:
https://www.xfinity.com/learn/offers
Here is my current code:
public String getISP() throws IOException {
Connection.Response addressFormResponse = Jsoup.connect("https://www.xfinity.com/learn/offers")
.data("Address.SingleStreetAddress", address)
.method(Connection.Method.POST)
.execute();
Document doc = addressFormResponse.parse();
System.out.println(doc.title());
System.out.println(doc.location());
if (doc.location().contains("Active Address")) {
return "Comcast XFinity";
}
return "Cannot find an ISP";
}
The current code only returns the same webpage, how would I get back the resulting page?

Jsoup is a HTML parser library, it provides functionality for extracting and manipulating data on HTML page. If you need traverse websites, submit forms, click elements, it's better to use another tools, like selenium, HTTP client (which are often used for automated test of web applications) or web crawler libraries like crawler4j.

I would tend to disagree with Daniil's answer in that neither HTTP Client or crawler4j support javascript which is required for this page. Selenium is probably the best solution.
What follows is an example of how to use jsoup to fetch a page, fill out a form, and submit it. The result is json and so you would then pass that string to gson or similar. I did not that the page was very flaky just in a regular browser, and sometimes would catch the address input and sometimes would barf on the same input.
Document doc = Jsoup.connect("https://www.xfinity.com/learn/offers").get();
FormElement form = (FormElement) doc.selectFirst("[data-form-dealfinder-localization]");
Element input = form.selectFirst("#Address_StreetAddress");
input.val("2000 YALE AVE E, SEATTLE, WA 98102");
String json = form.submit().ignoreContentType(true).execute().body();
System.out.println(json);

Jsoup Not Parsing Particluar DIv

I am unable to get the div 'live ticker' from here using Jsoup Library.
Here is my code:
Document doc = Jsoup.connect(Link).get();
Element link = doc.select("div.data-of-match-live-experience").first();
Elements squad = doc.select("div.data-of-match-live-experience");
Elements li = squad.select("li"); // select all li from ul
Log.d("jsoup", "size: " + li.size());

The text in this tag in not part of initial html, but is set by JavaScript after page is loaded. You can check it by disabling JavaScript in your browser. Jsoup only gets static html, does not execute JavaScript code.
When you examine what connections are made from the page you will find out that the value is updated through request to this API:
https://shapeshifter-api.onefootball.com/v1/en/match/live-experience/5/6700/718129
Make a request to this url, parser result and you will get desired value.

Going to next page on an aspx form with JSoup

I'm trying to go to the next page on an aspx form using JSoup.
I can find the next button itself. I just don't know what to do with it.
The idea is that, for that particular form, if the next button exists, we would simulate a click and go to the next page. But any other solution other than simulating a click would be fine, as long as we get to the next page.
I also need to update the results once we go to the next page.
// Connecting, entering the data and making the first request
...
// Submitting the form
Document searchResults = form.submit().cookies(resp.cookies()).post();
// reading the data. Everything up to this point works as expected
...
// finding the next button (this part also works as expected)
Element nextBtn = searchResults.getElementById("ctl00_MainContent_btnNext");
if (nextBtn != null) {
// click? I don't know what to do here.
searchResults = ??? // updating the search results to include the results from the second page
}
The page itself is www.somePage.com/someForm.aspx, so I can't use the solution stated here:
Android jsoup, how to select item and go to next page
I was unable to find any other suggestions.
Any ideas? What am I missing? Is simulating a click even possible with JSoup? The documentation says nothing about it. But I'm sure people are able to navigate these type of forms.
Also, I'm working with Android, so I can't use HtmlUnit, as stated here:
importing HtmlUnit to Android project
Thank you.

This is not Jsoup work! Jsoup is a parser with a nice DOM API that allows you to deal with wild HTML as if it were well-formed and not crippled with errors and nonsenses.
In your specific case you may be able to scrape the target site directly from your app by finding links and retrieving HTML pages recursively. Something like
private void scrape(String url) {
Document doc = Jsoup.connect(url).get();
// Analyze current document content here...
// Then continue
for (Element link : doc.select(".ctl00_MainContent_btnNext")) {
scrape(link.attr("href"));
}
}
But in the general case what you want to do requires far more functionality that Jsoup provides: a user agent capable of interpreting HTML, CSS and Javascript with a scriptable API that you can call from your app to simulate a click. For example Selenium:
WebDriver driver = new FirefoxDriver();
driver.findElement(By.name("next_page")).click();
Selenium can't be bundled in an Android app, so I suggest you put your Selenium code on a server and make it accessible with some REST API.

Pagination on ASPX can be a pain. The best thing you can do is to use your browser to see the data parameters it sends to the server, then try to emulate this in code.
I've written a detailed tutorial on how to handle it here but it uses the univocity HTML parser (which is commercial closed source) instead of JSoup.
In short, you should try to get a <form> element with id="aspnetForm", and read the form elements to generate a POST request for the next page. The form data usually comes out with stuff such as this:
__EVENTTARGET =
__EVENTARGUMENT =
__VIEWSTATE = /wEPDwUKMTU0OTkzNjExNg8WBB4JU29ydE9yZ ... a very long string
__VIEWSTATEGENERATOR = 32423F7A
... and other gibberish
Then you need to look at each one of these and compare with what your browser sends. Sometimes you need to get values from other elements of the page to generate a similar POST request. You may have to REMOVE some of the parameters you get - again, make your code behave exactly the same as your browser
After some (frustrating) trial and error you will get it working. The server should return a pipe-delimited result, which you can break down and parse. Something like:
25081|updatePanel|ctl00_ContentPlaceHolder1_pnlgrdSearchResult|
<div>
<div style="font-weight: bold;">
... more stuff
|__EVENTARGUMENT||343908|hiddenField|__VIEWSTATE|/wEPDwU... another very long string ...1Pni|8|hiddenField|__VIEWSTATEGENERATOR|32423F7A| other gibberish
From THAT sort of response you need to generate new POST requests for the subsequent pages, for example:
String viewState = substringBetween(ajaxResponse, "__VIEWSTATE|", "|");
Then:
request.setDataParameter("__VIEWSTATE", viewState);
There are will be more data parameters to get from each response. But a lot depends on the site you are targeting.
Hope this helps a little.

Sun's HTTP-Server Read Data directly

I am trying to get the Value of for example a Textfield on the Website...
Is there an other way than reading it from the uri?
For Example something like
getContent().getvar("name");

You need to use library like jsoup (here) to connect to the site (url) and get the data in DOM format. Below is an example code snippet:
Document doc = Jsoup.connect("http://google.com").get();
String title = doc.title();
System.out.println("title : " + title);
Elements links = doc.select("a[href]");
You can use methods like select to get the required element, e.g.:
Element head= doc.select("div.head").first();
Here is the javadoc of Document class and here are some examples.
If you have HTML code of the website, you can read it with jsoup and convert it into Document object. Unfortunately, there is no direct way to read the content of website/page without actually connecting to it (via uri).

How to parse content with <pre>?

I am using jsoup to parse a number of things.
I am trying to parse this tag
<pre>HEllo Worl<pre>
But just cant get it to work.
How would i parse this using jsoup?\
Document jsDoc = null;
jsDoc = Jsoup.connect(url).get();
Elements titleElements = jsDoc.getElementsByTag("pre");
Here is what i have so far.

Works fine for me with latest Jsoup:
String html = "<p>lorem ipsum</p><pre>Hello World</pre><p>dolor sit amet</p>";
Document document = Jsoup.parse(html);
Elements pres = document.select("pre");
for (Element pre : pres) {
System.out.println(pre.text());
}
Result:
Hello World
If you get nothing, then the HTML which you're parsing simply doesn't contain any <pre> element. Check it yourself by
System.out.println(document.html());
Perhaps the URL is wrong. Perhaps there's some JavaScript which alters the HTML DOM with new elements (Jsoup doesn't interpret nor execute JS). Perhaps the site expects a real browser instead of a bot (change the user agent then). Perhaps the site requires a login (you'd need to maintain cookies). Who knows. You can figure this all out with a real webbrowser like Firefox or Chrome.