如何在struts+spring+hibernate的框架下构建低耦合高内聚的软件（How to build low coupling and high cohesion software under the framework of struts+spring+hibernate）.docVIP

如何在struts+spring+hibernate的框架下构建低耦合高内聚的软件（How to build low coupling and high cohesion software under the framework of struts+spring+hibernate） How to build low coupling and high cohesion software under the framework of struts+spring+hibernate The question raised, I often think about a question, how can we design a high level of high-quality software out?. What is a high level, high quality software? It should be a system that is easy to maintain, easy to adapt to changes, and has good reusability. How do you do that? The answer, of course, is low coupling, high cohesion.. Low coupling is when software is built, each module, function, class is not overly dependent on the environment around it. Only in this way can we make our modules (functions, classes) not affected in the vicinity of changes, so that they are easy to maintain and easy to adapt to changes. Because of this, it makes it easier to reuse in other functional environments and improves reuse. High cohesion makes each module in software (function, class) to do their best and full cooperation, which is for the various functional requirements of the software in the problem space, the system can reasonably assign it to each module (function, class) to complete, while the super class is not one or several, all things to all men to conquer the world of a person to complete. One of the modules (functions, classes) of the system has a highly relevant responsibility, that is, several tasks in that responsibility are highly relevant. Each module (function, class) never completes the task that does not concern itself. So how can we build a low coupling, high cohesion system, struts+spring+hibernate, one of the most popular framework structures, is now convenient for us. Using struts, we can apply the MVC model to separate the page presentation from the business logic, so that the page presentation is low coupled with the business logic. When we need to change the page display, we only need to modify our page, but doe