SpringMVC的Hello World

本次使用Maven和Spring IO platform创建SpringMVC的Hello World。

一、Maven的Pom文件内容如下：

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <modelVersion>4.0.</modelVersion>
     <groupId>com.mcs.springmvc</groupId>
     <artifactId>HelloWorld</artifactId>
     <packaging>war</packaging>
     <version>0.0.-SNAPSHOT</version>
     <name>HelloWorld SpringMVC</name>
     <url>http://maven.apache.org</url>

     <dependencies>
         <!-- junit -->
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <scope>test</scope>
         </dependency>
         <!-- log4j -->
         <dependency>
             <groupId>log4j</groupId>
             <artifactId>log4j</artifactId>
         </dependency>

         <!-- spring -->
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
         </dependency>

         <!-- commons -->
         <dependency>
             <groupId>commons-logging</groupId>
             <artifactId>commons-logging</artifactId>
         </dependency>

     </dependencies>

     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>io.spring.platform</groupId>
                 <artifactId>platform-bom</artifactId>
                 <version>1.1..RELEASE</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
         </dependencies>
     </dependencyManagement>

     <build>
         <finalName>HelloWorld</finalName>
     </build>
 </project>

二、Web.xml文件内容如下：

 <?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_3_0.xsd" id="WebApp_ID" version="3.0">
     <display-name>springmvc</display-name>

     <!-- 配置SpringMVC -->
     <servlet>
         <servlet-name>springDispatcherServlet</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
         <init-param>
             <param-name>contextConfigLocation</param-name>
             <param-value>classpath:spring-mvc.xml</param-value>
         </init-param>
         <load-on-startup></load-on-startup>
     </servlet>

     <servlet-mapping>
         <servlet-name>springDispatcherServlet</servlet-name>
         <url-pattern>/</url-pattern>
     </servlet-mapping>

     <!-- 配置字符集过滤器 -->
     <filter>
         <filter-name>characterEncodingFilter</filter-name>
         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
         <init-param>
             <param-name>encoding</param-name>
             <param-value>utf-</param-value>
         </init-param>
     </filter>
     <filter-mapping>
         <filter-name>characterEncodingFilter</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>

     <!-- 配置session超时时间，单位分钟 -->
     <session-config>
         <session-timeout>15</session-timeout>
     </session-config>

     <!-- 设置欢迎页面 -->
     <welcome-file-list>
         <welcome-file>/index.jsp</welcome-file>
     </welcome-file-list>

     <!-- 找不到页错误转向 -->
     <error-page>
         <error-code>404</error-code>
         <location>/error/404.jsp</location>
     </error-page>
     <!-- 系统内部错误转向 -->
     <error-page>
         <error-code>500</error-code>
         <location>/error/500.jsp</location>
     </error-page>
 </web-app>

三、spring-mvc文件内容如下：

 <?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" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="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-4.1.xsd
         http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">

     <!-- 使用注解的包 -->
     <context:component-scan base-package="com.mcs.springmvc.controller"></context:component-scan>

     <!-- 支持对象与JSON相互转换 -->
     <mvc:annotation-driven />

     <!-- 视图解析器 -->
     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/views/" />
         <property name="suffix" value=".jsp" />
     </bean>

 </beans>

四、HelloworldController文件内容如下：

 package com.mcs.springmvc.controller;

 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;

 @Controller
 public class HelloworldController {

     @RequestMapping("/helloWorld")
     public String helloWorld(Model model) {
         model.addAttribute("message", "Hello SpirngMVC!");
         return "helloWorld";
     }
 }

五、helloworld.jsp文件内容如下：

 <%@ 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>Insert title here</title>
 </head>
 <body>
     <h3>Message: ${ message }</h3>
 </body>
 </html>

六、显示效果如下：　　

　　Message: Hello SpirngMVC!