Back button HTML-page access with JAVA

I want to activate the back button of the HTML-browser. with开发者_StackOverflow中文版 a JAVA command not Javascript. does anyone know how?

Assuming you are talking about an applet: I assume you would have to use the netscape.javascript packages to hit the JS API for it.

If you are talking about server side Java, then you have no way to trigger the back functionality. The closest you could come would be to read the referer (warning: Optional! Sometimes forged! Make sure it is a URI on your domain!) and issue a Location header to redirect forwards to it.

You can't. Java runs on the server. JavaScript runs on the client. You could have a JSP output JavaScript which is then run at client time in the browser.