问题描述
将业务逻辑保留在 JSP 之外有什么好处，因为 JSP 主要用于表示?我们仍然看到 JSP 内部编写的业务逻辑，所以我需要知道将业务逻辑移出 JSP 可以获得什么好处.
What are the advantages of keeping the business logic outside JSP, since JSP's are meant mainly for presentation? We still see business logic written inside the JSP, so I needed to know what benefit we get by moving business logic out of JSP.
推荐答案
可重用性
假设明天您需要在桌面应用上运行相同的应用.然后你可以改变视图.
Suppose tomorrow you need same app running on a desktop app. then you can just change the view.
可测试性
您可以对服务方法进行单元测试，但不能简单地从视图中对逻辑进行单元测试.
You can unit test your service methods, but you can't simply unit test logic from view.
可维护性
Service 方法中的代码很容易理解，我们也可以更改它/发布服务 api 并轻松维护
It is easy to understand the code from Service methods, also we can change it /release service api and maintain it easily
版本能力
如果您使用服务 API 代替逻辑视图，您可以为 API 提供版本并维护与问题/更新相关的标准文档
You can give version to your API and maintain standard docs related to issues/updates if you use service API instead view for logic
另见
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