初学Spring mvc,做了个简单的HelloWorld。
运行环境:jdk1.7 + eclipse-ee + tomcat7.0 + spring mvc3.1
配置文件说明:spring mvc的配置使用注解方式
首先Spring mvc 新手入门所需要的jar包有:
commons-logging-1.1.1.jar ----记录程序运行时的活动的日志
org.springframework.asm-3.1.1.RELEASE.jar ----动态生成java类
org.springframework.beans-3.1.1.RELEASE.jar ----springIoC的基础实现
org.springframework.context-3.1.1.RELEASE.jar ----spring提供的基于IoC的扩展服务
org.springframework.context.support-3.1.1.RELEASE.jar ----Spring-context的扩展支持,用于MVC方面
org.springframework.core-3.1.1.RELEASE.jar ----Spring3.1的核心工具包
org.springframework.expression-3.1.1.RELEASE.jar ----Spring表达式语言
org.springframework.oxm-3.1.1.RELEASE.jar ----Spring提供的Object-xml mapping支持
org.springframework.web-3.1.1.RELEASE.jar ----Spring web下的工具
org.springframework.web.servlet-3.1.1.RELEASE.jar ----提供对JEE6.0 Servlet3.0的支持
web.xml 配置如下:
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
version="2.5">
<!-- 使用SpringMVC的servlet -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- servlet初始化参数设定 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<!-- servlet配置文件的路径 -->
<param-value>classpath:spring-servlet.xml
</param-value>
</init-param>
<!-- tomcat startup时加载该servlet-->
<load-on-startup>1</load-on-startup>
</servlet>
<!-- servlet url拦截 -->
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
spring-servlet.xml 配置如下(此文件放在src根目录下):
<span style="font-size:12px;color:#3333FF;"><?xml version="1.0" encoding="GB18030"?>
<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">
<!-- 注解驱动 -->
<mvc:annotation-driven/>
<!-- 扫描注解文件 -->
<context:component-scan base-package="com.naruto" />
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
</bean>
<!-- 处理结果渲染到前端页面 -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>
</beans></span>
Controller java类如下(此类在src下名为com.naruto的package中):
package com.naruto;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
//用注解的方式表示这是一个Controller,spring-servlet.xml会扫描该包中的Controller
@Controller
public class helloController {
//注解,客户端的请求经过该方法处理后会映射到WEB/INF下的/jsp/hello,服务器→客户端通信时使用的方法是GET
@RequestMapping(value="/jsp/hello",method=RequestMethod.GET)
//该方法接收一个Model容器,并返回一个视图ModelAndView,
public ModelAndView helloWorld(Model model) {
//在model中增加一个属性,名字是Msg,内容是hello world!
model.addAttribute("msg", "hello world!");
//返回添加了Model容器的视图
return new ModelAndView().addObject("model", model);
}
}