本文主要是介绍Spring MVC HelloWorld入门例子,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
本例子为你讲解在spring3中如何使用基于注解的mvc框架.例子中使用到的工具:
MyEclipse 9.1
jdk 1.6
1.添加Jar包引用
由于使用了Maven管理项目,所以,第一步就是添加引用.(没有使用Maven怎么办?那你直接下载Spring3的压缩包,添加相应的Jar文件就可以了。)
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-web</artifactId>
- <version>3.1.1.RELEASE</version>
- <type>jar</type>
- <scope>compile</scope>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-core</artifactId>
- <version>3.1.1.RELEASE</version>
- <type>jar</type>
- <scope>compile</scope>
- </dependency>
- <dependency>
- <groupId>org.springframework</groupId>
- <artifactId>spring-webmvc</artifactId>
- <version>3.1.1.RELEASE</version>
- <type>jar</type>
- <scope>compile</scope>
- </dependency>
2.编写 Controller 和 Mapping
我们采用注解的方式配置,如果想使用XML的方式,可以查看文档,都是一样的配制方法.
- package com.vito.action;
- import org.springframework.stereotype.Controller;
- import org.springframework.ui.ModelMap;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RequestMethod;
- @Controller
- @RequestMapping("/welcome")
- public class HelloWorldController {
- @RequestMapping(value="/hello",method = RequestMethod.GET)
- public String printWelcome(ModelMap model) {
- model.addAttribute("message", "Spring 3 MVC Hello World");
- return "hello";
- }
- }
3.JSP视图
- <html>
- <body>
- <h1>Message : ${message}</h1>
- </body>
- </html>
4.Spring配置文件
- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:context="http://www.springframework.org/schema/context"
- xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans
- http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
- http://www.springframework.org/schema/context
- http://www.springframework.org/schema/context/spring-context-3.0.xsd">
- <context:component-scan base-package="com.vito.action" />
- <bean
- class="org.springframework.web.servlet.view.InternalResourceViewResolver">
- <property name="prefix">
- <!-- 这个配置是配置JSP页面的位置,按照你自己的配置来配 -->
- <value>/WEB-INF/pages/</value>
- </property>
- <property name="suffix">
- <value>.jsp</value>
- </property>
- </bean>
- </beans>
5.web.xml
- <?xml version="1.0" encoding="UTF-8"?>
- <web-app version="2.5" 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_2_5.xsd">
- <servlet>
- <servlet-name>springMvc</servlet-name>
- <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
- <init-param>
- <param-name>contextConfigLocation</param-name>
- <param-value>classpath:applicationContext.xml</param-value>
- </init-param>
- </servlet>
- <servlet-mapping>
- <servlet-name>springMvc</servlet-name>
- <url-pattern>/</url-pattern>
- </servlet-mapping>
- </web-app>
6.成果
访问: http://localhost:8080/sw/welcome/hello/
就可以得到这样的画面了:
项目文件已上传.使用myeclipse9导入即可
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