如何更快地进行Java后端开发？或者我可以吗？

I started web programming with raw PHP, gradually moving on to its various frameworks, then to Django and Rails. In every framework I've used, pretty much everything I need to do with a database (even involving relatively complex things like many-to-many relationships) could be taken care of by the automatically generated database API without much work. Those few operations that were more complex could be done with straight SQL or by tying together multiple API calls.I started web programming with raw PHP, gradual