通过HtmlUnit在Facebook上发布

Question

I looking for a "method" to post a message on facebook using HtmlUnit. I'd like to go to the wall page, and fill the text box:

HtmlTextInput text = (HtmlTextInput) page.getElementById(textBoxId);
text.setTextContent("Hello!");

I want to "click" on the Post button, but i can't figure out the way to select the button element and perform the action. Is there a way to do so?

Here's an explicative image:

Answer 1

If an element doesn't contain an id attribute you can still get it using XPath. The HtmlUnit way of using XPath is by means of the getFirstByXPath and getByXPath methods.

A short and over simplified example would be:

page.getFirstByXPath("//button[text()='Post']");

As a side note, you might be more interested in using the Facebook API rather than webscraping Facebook, which, by the way, is very likely to be against their terms of service.