These when writing the front page, ssm framework, after the page to make changes, save it, refresh your browser page update occurs
But sprigBoot seemed different, as if the need to recompile pages, the browser page change will occur
(Quick compilation: Click the page + ctrl + F9, fast compiler)
But generally occurs because the page does not change focused on the following points
1, browser cache problem, you can clear the cache
2, that is, the page has not been compiled (maybe save some, you automatically compiled, and some is not the case, you need to compile it)