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SpringMVC的请求流程：
?SpringMVC的执行流程：
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简单的实现一个SpringMVC请求的例子
spring的包：
com.springsource.org.aopalliance-1.0.0.jarspring-aop-3.2.5.RELEASE.jarspring-aspects-3.2.5.RELEASE.jarspring-beans-3.2.5.RELEASE.jarspring-context-3.2.5.RELEASE.jarspring-context-support-3.2.5.RELEASE.jarspring-core-3.2.5.RELEASE.jarspring-expression-3.2.5.RELEASE.jarspring-web-3.2.5.RELEASE.jarspring-webmvc-3.2.5.RELEASE.jar
?日志包：
com.springsource.org.apache.commons.logging-1.1.1.jar
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配置web.xml，SpringMVC使用DispatcherServlet当作请求的分发器，拦截一*.do的请求
<servlet> <servlet-name>defaultServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>defaultServlet</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping>
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写个Controller类，继承AbstractController类，覆写其中handleRequestInternal()，ModelAndView返回的“springMVC”是View的视图文件名称
public class SpringController extends AbstractController { @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { System.out.println(request.getContextPath() + "--" + request.getServletPath()); return new ModelAndView("spingMVC"); }}?
在WEB-INF下编写SpringMVC的配置文件，名称为“DispatcherServlet名+servlet.xml”，这例子中的文件名为：defaultServlet-servlet.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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd"> <!-- controller的配置--> <bean name="/spring.do" class="controller.SpringController"></bean> <!-- View资源视图解析器--> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/page/" /> <property name="suffix" value=".jsp" /> </bean></beans>
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?在web-inf下新建一个page文件夹，新建一个SpringMVC.jsp文件，SpringMVC是Controller里ModelAndView返回的资源视图名称，路径就是InternalResourceViewResolver中配置的路径
整个工程的包结构：
页面访问地址为：http://127.0.0.1:8080/SprintMVC/spring.do
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defaultServlet-servlet.xml是Controller的配置文件，但这么定义很不符合一般的项目开发习惯，现在希望springMVC的配置文件放在src目录下，让它随容器启动时被加载，把defaultServlet-servlet.xml放在src下，修改为SpringMVC.xml，修改web.xml中的配置
<servlet> <servlet-name>defaultServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:SpringMVC.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>defaultServlet</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping>
?工程结构如下
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