springMvc 注解配置例子(hello world)含demo
oyhk 学习笔记
用spring mvc 已经有一段时间了,感觉真的比struts2好用(个人认为)...
下面写一篇,基于注解配置的springmvc小教程(hello world)
demo演示:http://demo.mkfree.com/springmvc/helloworld/index
springMvc 注解配置例子(hello world)
简介
spring mvc 是一个web application 一个标准的mvc (model,views ,controller)框架
spring mvc 的基本概念,看下图,就已经非常清晰了
处理请求的基本流程
Spring MVC中，核心disatcher组件是“的DispatcherServlet”，这作为前端控制器（设计模式）。每个Web请求去通过这种“DispatcherServlet的”，“DispatcherServlet的”将Web请求调度到适当的处理程序。小例子演示
环境配置:
- spring 3.1.2 release
- jdk 1.7
- maven 3
目录结构
好了,下面我们看看搭配spring mvc jsp 注解例子需要依赖的jar包,我用了maven 管理起来比较方便,下面是pom.xml的代码
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<artifactId>free-demo</artifactId>
<groupId>free-demo</groupId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>free-demo</groupId>
<artifactId>springmvc_helloworld</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<outputDirectory>src/main/webapp/WEB-INF/classes</outputDirectory>
</build>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${springVersion}</version>
</dependency>
<!-- JSTL -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
</dependencies>
</project>
controller代码
package com.mkfree.demo.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
public class HelloworldController {
@RequestMapping(value = "/", method = RequestMethod.GET)
public String index(Model model) {
return "index";
}
@RequestMapping(value = "/springmvc/helloworld", method = RequestMethod.GET)
public String helloworld(Model model) {
model.addAttribute("msg", "springmvc helloworld例子演示成功啦...");
return "helloworld";
}
}
index.jsp
<%@page pageEncoding="UTF-8" language="java" contentType="text/html; charset=utf-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <html> <body> <h1>这里是一个springmvc的例子</h1> <a href="/springmvc/helloworld">springmvc/helloworld</a> </body> </html>helloworld.jsp
<%@page pageEncoding="UTF-8" language="java" contentType="text/html; charset=utf-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<html>
<body>
<h1>这里是一个springmvc的例子</h1>
<h2>${msg}</h2>
</body>
</html>
spring-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<!--注解说明 -->
<context:annotation-config />
<!-- 把标记了@Controller注解的类转换为bean -->
<context:component-scan base-package="com.mkfree.demo.controller" />
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
</bean>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app id="free-blog" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <servlet> <servlet-name>free-front</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/spring-servlet.xml </param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>free-front</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <filter> <filter-name>encoding</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encoding</filter-name> <url-pattern>/</url-pattern> </filter-mapping> <!-- 访问ico时,交给默认的servlet处理 --> <servlet-mapping> <servlet-name>default</servlet-name> <url-pattern>*.ico</url-pattern> </servlet-mapping> </web-app>以上就是一个springmvc 例子,希望对学者有用如果有兴趣者可以下载源代码
源代码下载:free-demo.rar
本文章来自:http://blog.mkfree.com/posts/5124461f975ad06dbb64fda2