基于spring注解的MVC

1.创建web项目

2.引入类库

         com.springsource.javax.annotation-1.0.0.jar

         com.springsource.javax.servlet.jsp.jstl-1.1.2.jar

         com.springsource.org.aopalliance-1.0.0.jar

         com.springsource.org.apache.commons.logging-1.1.1.jar

         com.springsource.org.apache.taglibs.standard-1.1.2.jar

         org.springframework.aop-3.0.0.RELEASE.jar

         org.springframework.asm-3.0.0.RELEASE.jar

        org.springframework.beans-3.0.0.RELEASE.jar

        org.springframework.context.support-3.0.0.RELEASE.jar

         org.springframework.context-3.0.0.RELEASE.jar

        org.springframework.core-3.0.0.RELEASE.jar

        org.springframework.expression-3.0.0.RELEASE.jar

        org.springframework.web.servlet-3.0.0.RELEASE.jar

        org.springframework.web-3.0.0.RELEASE.jar

*比前面介绍的非注解方式多一个一个annotation包

3.在web.xml文件中配置DispatcherServlet

<!-- 配制spring分发器servlet -->
	   <servlet>
			<servlet-name>action</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>
		</servlet>
		<servlet-mapping>
			<servlet-name>action</servlet-name>
			<url-pattern>/</url-pattern>
		</servlet-mapping>

* / 代表拦截所有

4.创建控制器HomeController

@Controller
@RequestMapping(value="/home")
public class HomeController {
	@RequestMapping(value="/aaa",method=RequestMethod.GET)
	public String method1(@RequestParam(value="id") String uid,HttpServletRequest request,Person p,Map<String, Object> model){
		//uid = request.getParameter("id");
		System.out.println(uid);
		System.out.println(p);
        System.out.println("HomeController.method1()");		
        model.put("key", "mym");
		return "home";
	}
}

*两个项目类名相同，把另外一个项目关闭，不然调试时会跳转到另外一个项目里面去

*如果传递过来的参数不一样，可以以@RequestParam(value="id") String uid 的方式传递参数

*@RequestMapping(value="/aaa",method=RequestMethod.GET)  只支持get方式的请求

*public String method1(@RequestParam(value="id") String uid,HttpServletRequest request,Person p,Map<String, Object> model){

 Map类似于struts2的值栈，必须作为形参jsp页面才能使用

5.创建spring配置文件/WEB-INF/action-servlet.xml

<!-- 注解驱动 -->
        <mvc:annotation-driven/>
        <!-- 扫描组件 -->
        <context:component-scan base-package="mym.springmvc.controller"/> 
	    <!-- 内部资源视图解析器 -->
	    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
	          <property name="prefix" value="/WEB-INF/jsps/"/>
	          <property name="suffix" value=".jsp"/>
	    </bean>

6.创建jsp./WEB-INF/jsp/home.jsp