springMVC入门案例

时间：2023-03-09 17:56:35
springMVC入门案例

1、配置文件的web.xml

 <?xml version="1.0" encoding="UTF-8"?>

 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

   <display-name>springmvc1</display-name>

   <servlet>

   <servlet-name>springmvc</servlet-name>

   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

   <!-- 默认加载方式必须规范：

          * 文件命名：servlet-name-servlet.xml====springmvc-servlet.xml

          * 路径规范：必须在WEB-INF目录下面 -->

    <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>*.do</url-pattern>

   </servlet-mapping>

   <welcome-file-list>

     <welcome-file>index.html</welcome-file>

     <welcome-file>index.htm</welcome-file>

     <welcome-file>index.jsp</welcome-file>

     <welcome-file>default.html</welcome-file>

     <welcome-file>default.htm</welcome-file>

     <welcome-file>default.jsp</welcome-file>

   </welcome-file-list>

 </web-app>

2、springMVC.xml

 <?xml version="1.0" encoding="UTF-8"?>

 <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"

     xmlns:aop="http://www.springframework.org/schema/aop"

     xmlns:tx="http://www.springframework.org/schema/tx"

     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

         http://www.springframework.org/schema/aop

         http://www.springframework.org/schema/aop/spring-aop-3.2.xsd

         http://www.springframework.org/schema/tx

         http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">

         <!-- 配置处理器映射器,springmvc默认的处理器映射器

         BeanNameUrlHandlerMapping：根据bean(自定义Controler)的name属性的url去寻找hanler(Action:Controller) -->

         <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>

         <!-- 配置处理器适配器执行Controlelr ,springmvc默认的SimpleControllerHandlerAdapter:执行Controller -->

         <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>

         <!-- 配置自定义Controler -->

         <bean id="myController" name="/hello.do" class="com.xiaostudy.MyController"/>

         <!-- 配置sprigmvc视图解析器：解析逻辑试图

              后台返回逻辑试图：index

             视图解析器解析出真正物理视图：前缀+逻辑试图+后缀====/WEB-INF/index.jsp -->

         <!-- <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

             <property name="prefix" value="/WEB-INF/"/>

             <property name="suffix" value=".jsp"/>

         </bean> -->

 </beans>

3、Controller.java

 package com.xiaostudy;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import org.springframework.web.servlet.ModelAndView;

 import org.springframework.web.servlet.mvc.Controller;

 public class MyController implements Controller{

     public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {

         //创建视图

         ModelAndView mv = new ModelAndView();

         //设置页面回显数据

         mv.addObject("hello", "xiaostudy");

         //返回物理视图,指定跳转的视图

 //        mv.setViewName("/WEB-INF/index.jsp");

         //返回逻辑视图

         mv.setViewName("index");

         return mv;

     }

 }

4、index.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">

     <title>springMVC_demo</title>

 </head>

 <body>

     ${hello }

 </body>

 </html>

5、所需jar包

springMVC入门案例

6、项目文件位置

springMVC入门案例

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