第一节初识MVC实现计算器
2024-07-21 04:38:57 226人阅读
第一节初识MVC实现计算器<style type="text/css">/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab filetype=css: *//*! * Base CSS for pdf2htmlEX * Copyright 2012,2013 Lu Wang * https://github.com/coolwanglu/pdf2htmlEX/blob/master/share/LICENSE *//* Part 1: Web Page Layout: Free to modify, except for a few of them which are required by pdf2htmlEX.js, see the comments */#sidebar { /* Sidebar */ position:absolute; top:0; left:0; bottom:0; width:250px; padding:0; margin:0px; overflow:auto;}#page-container { /* PDF container */ position:absolute; /* required for calulating relative positions of pages in pdf2htmlEX.js */ top:0; left:0px; margin:0; padding:0; border:0; /* required for lazy page loading in pdf2htmlEX.js (page visibility test) */}@media screen { /* for sidebar */ #sidebar.opened + #page-container { left:250px; } #page-container { /* `bottom‘ and `right‘ are required for lazy page loading in pdf2htmlEX.js (page visibility test) * alternatively you may set width and height */ 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第一节 初识 MVC 实现计算器
Web.xml
<servlet>
<!-- 使用自定义的控制器 -->
<servlet-name>Controller</servlet-name>
<servlet-class>com.nuan.framework.Controller</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Controller</servlet-name>
<!-- 请求匹配类型 -->
<url-pattern>*.action</url-pattern>
</servlet-mapping>
初始化 actionMap
根据 path 选择 action
处理 get/post 请求，得到目标 jsp 页面跳转
获得页面输入
调用业务逻辑方法，获得返回值，将结果保存
在 request 中，以便在页面中得到
返回将要转发到的页面路径
来自为知笔记(Wiz)
第一节初识MVC实现计算器
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