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法然
2022-07-25 01:52:06 +08:00
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## 1 简介
MVC：Model+View+Controller(数据模型+视图+控制器)
三层架构：Presentation tier+Application tier+Data tier（展现层+应用层+数据访问层）
MVC与三层架构不是对应关系。MVC只存在三层架构的展示层。M是数据模型，包含数据对象，叫做Model，用来和V之间进行数据交互和传值。V指的是视图页面，包含JSP、freeMarker、Velocity、Thymeleaf、Tile等；C是控制器。