所有MVC平台都一样吗？

In the future I will be working with MVC with java/j2ee,hibernate,and more, but for now I have asp.net, php, python, ruby, etc. If I learn how to use MVC asp.net or MVC with a php framework, or RoR, will that help me with the Java version? I don't want to wait until I start the java project before I start really learning how to use MVC, but if the .net or php versions of mvc are so different that it will be a major relearning, then I might not use the non-java mvc frameworks.In the future I will be working with MVC with j