MVC is all about proper separation of concerns.
MVC最重要的就是合理的分离关注点。
If you didn't get the proper separation between entries in the classpath, you will be able to see any problems in this view.
如果类路径中的条目之间没有进行正确分隔，在此视图中，您将看到一些问题。
The goal was to have a proper separation of concerns for each layer of the application -- i.e., the business logic remains in the implementation layer, the UI in the user interface layer, etc.
目标是适当地分离与应用程序每一层相关的问题 —— 也就是，业务逻辑仍旧在实现层，UI 在用户界面层，等等。
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