How can I interact with javascript website with java

Question

I would like to type some text in textfield, and then select a, if a is not available, then select b, finally submit the information. I just write these code and get no idea what can I do next.

URL page_1 = new URL("https://google.com.hk");
HttpURLConnection urlconnection = (HttpURLConnection) page_1.openConnection();

DataOutputStream data_out = new DataOutputStream(urlconnection.getOutputStream());
DataInputStream data_in = new DataInputStream(urlconnection.getInputStream());

urlconnection.setDoInput(true);
urlconnection.setDoOutput(true);

System.out.println(data_out);
System.out.println(data_in);
System.out.println(urlconnection);

I just don't understand, get us a jsFiddle

Sudharsun
– Sudharsun

2013-10-05 11:06:09 +00:00
Commented Oct 5, 2013 at 11:06 — Sudharsun
– Sudharsun, Commented Oct 5, 2013 at 11:06

JB Nizet · Accepted Answer · 2013-10-05 11:10:40Z

1

Java won't load the page and execute the JS code it contains like a browser would do. All it will do is load the data sent by the server in the response.

If you want a programmable browser in Java, then look at Selenium or HtmlUnit.

answered Oct 5, 2013 at 11:10

JB Nizet

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2 Comments

user2760979 Over a year ago

How can I send data to server?? Let say I would like to use java to search stackoverflow at Google. And then show the first website's name at java. How can I do that?

JB Nizet Over a year ago

Send data with what? Plain Java HttpUrlConnection? HtmlUnit? Selenium? Have you read the answer and read the documentation of HtmlUnit and Selenium?

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