how to save/parse a web page from a hidden frame, in Google app engine for java

I want to save/parse a web page from a specific frame that is hidden... The frame contains response to a web form submission, and I want to save it/par开发者_Go百科se through it using code from my web app... I want to do all this in a JSP/Java web app...

Any pointers in this regard will be appreciated :)

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If the hidden frames (iframes?) are results from posts to websites outside your own (external sites), then it can't be done. The cross-site restrictions (same origin policy) in browsers prevents you from accessing anything in frames loaded from other domains from the "parent" frame.