Spring Mvc-入门案例
添加jar包
除了添加spring核心的那4个jar包和一个commons-logging.jar。
还需要添加
- spring-web-3.2.0.RELEASE.jar
- spring-webmvc-3.2.0.RELEASE.jar
- jstl-1.2.jar
在web.xml里边配置前端控制器
<!-- 前端控制器 --><servlet><servlet-name>springmvc</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- 加载springmvc配置 --><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:springmvc.xml</param-value></init-param></servlet><servlet-mapping><servlet-name>springmvc</servlet-name><url-pattern>*.action</url-pattern></servlet-mapping>
建立springmvc.xml文件
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd"><!-- 使用spring组件扫描 --><context:component-scan base-package="cn.itcast.springmvc.first" /><!-- 配置注解驱动 --><mvc:annotation-driven /><!-- 配置视图解析器 --><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"></bean></beans>
建立Test.java
@Controllerpublic class Test {@RequestMapping(value="/test")public void test(HttpServletRequest request,HttpServletResponse response) throws Exception{String num=request.getParameter("num");request.setAttribute("item", num);request.getRequestDispatcher("/WEB-INF/jsp/test.jsp").forward(request, response);}}
建立test.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body>${item}</body></html>
在浏览器访问
http://localhost:8080/springmvctest/test.action?num=222
之后会在页面显示出222
ゞ 浴缸里的玫瑰
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朱雀
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