How to open IE from java and perform operations like click() etc. through java?

Question

I wan't to login to a website through Java and perform operations, like click, add text to a textfield, etc., through Java.

Answer 1

I suggest using a testing framework like HtmlUnit. Even through it's designed for testing, it's a perfectly good programmatic "navigator" of remote websites.

Here's some sample code from the site, showing how to navigate to a page and fill in a form:

public void submittingForm() throws Exception {
   WebClient webClient = new WebClient();
   HtmlPage page1 = webClient.getPage("http://some_url");
   HtmlForm form = page1.getFormByName("myform");
   HtmlSubmitInput button = form.getInputByName("submitbutton");
   HtmlTextInput textField = form.getInputByName("userid");
   textField.setValueAttribute("root");
   HtmlPage page2 = button.click();
}

Answer 2

You could launch it by

Runtime.getRuntime().exec("command-line command to launch IE");

then use Java's Robot class to send mouse clicks and fill in text. This seems rather crude, though, and you can probably do better by communicating directly with the web server (bypassing the browser entirely).