Grab contents of a webpage in GWT

Question

Hi all,
Let's say that I have a link to a webpage that contains some text. What's the easiest way to grab this text to process?

Thanks.

Answer 1

Assuming same origin: use the "RequestBuilder" class.

If you are trying to grab a webpage from a different origin, then it obviously won't work.

Answer 2

Long story short, I don't think it's possible to make a request from the client js to grab the text from a url with a different domain.

It is possible to make requests to load json. This link describes how.

Basically, the steps are:

• Embed a tag in the GWT page
• after GWT page is initialized, update the script tag's src to load remote url
• remote url returns some json data padded inside a callback javascript function such as: callback({blah:foo})

So, you're only option may be writing a method on the server side that loads the url, gets the text. You could then call this method from gwt client using normal rpc technique.