springMVC java实例入门

实例代码结构图：

 

1、web.xml文件

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

<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"

       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

       xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

       http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

       <display-name></display-name>

       

       

       <!-- 监听spring上下文容器 -->

       <listener>

              <listener-class>

                     org.springframework.web.context.ContextLoaderListener

              </listener-class>

       </listener>

       

       <!-- 加载spring的xml配置文件到 spring的上下文容器中 -->

       <context-param>

              <param-name>contextConfigLocation</param-name>

              <param-value>classpath:root-context.xml</param-value>

       </context-param>

       

       <!-- 配置Spring MVC DispatcherServlet -->

       <servlet>

              <servlet-name>MVC</servlet-name>

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

              <!-- 初始化参数 -->

              <init-param>

                     <!-- 加载SpringMVC的xml到 spring的上下文容器中 -->

                     <param-name>contextConfigLocation</param-name>

                     <param-value>

                           /WEB-INF/classes/mvc*.*

                     </param-value>

              </init-param>

              <load-on-startup>1</load-on-startup>

       </servlet>

       <!-- 配置DispatcherServlet所需要拦截的 url -->

       <servlet-mapping>

              <servlet-name>MVC</servlet-name>

              <url-pattern>*.html</url-pattern>

       </servlet-mapping>

       <welcome-file-list>

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

       </welcome-file-list>

</web-app>

 

2、springMVC配置文件mvc-context.xml

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

<beans:beans xmlns="http://www.springframework.org/schema/mvc"

       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"

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

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

       xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd

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

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

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

       <!-- 加载Spring的全局配置文件 -->

       <beans:import resource="root-context.xml" />

       

       <!-- SpringMVC配置 -->

       

       <!-- 通过component-scan 让Spring扫描org.swinglife.controller下的所有的类，让Spring的代码注解生效 -->

       <context:component-scan base-package="org.swinglife.controller"></context:component-scan>

       

       <!-- 配置SpringMVC的视图渲染器， 让其前缀为:/ 后缀为.jsp  将视图渲染到/page/<method返回值>.jsp中 -->

       <beans:bean

              class="org.springframework.web.servlet.view.InternalResourceViewResolver"

              p:prefix="/page/" p:suffix=".jsp">

       </beans:bean>

</beans:beans>

 

3、spring配置文件root-context.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: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/context

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

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

       <!-- Root Context: defines shared resources visible to all other web components -->

       

</beans>

 

 

4、HomeController.java

package org.swinglife.controller;

 

import org.springframework.stereotype.Controller;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.bind.annotation.RequestMapping;

 

/***

 * 

 * @author

 *

 */

@Controller 

public class HomeController {

 

    /*** 

     * 首页 返回至/page/home.jsp页面 

     * @return 

     */  

    @RequestMapping("index")

    public ModelAndView index(){

        //创建模型跟视图，用于渲染页面。并且指定要返回的页面为home页面  

        ModelAndView mav = new ModelAndView("home");

        return mav;

    }

}

 

5、编写对应的jsp页面

<%@ page language="java" contentType="text/html; charset=GB18030"

    pageEncoding="GB18030"%>

<!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=GB18030">

<title>home</title>

</head>

<body>

<h2>spring mvc 实例</h2>

<form action="login.html" method="post">

       username:<input type="text" name="username" />

       <p>

       password:<input type="password" name="password"/>

       <p>

       <input type="submit" value="submit" />

</form>

<a href="other.html">other page</a>

</body>

</html>