Spring-MVC开发步骤(入门配置)

Spring-MVC开发步骤(入门配置)

Step1.导包	spring-webmvc

Step2.添加spring配置文件

Step3.配置DispatcherServlet

	在web.xml中:

		<servlet>

      		<servlet-name>springmvc</servlet-name>

      			<servlet-class>

          			org.springframework.web.servlet.DispatcherServlet

      			</servlet-class>

      <!-- DispatcherServlet的初始化方法会启动spring容器,

      contextConfigLocation用来指定spring配置文件的位置 -->

      			<init-param>

          			<param-name>contextConfigLocation</param-name>

          			<param-value>classpath:spring-mvc.xml</param-value>

      			</init-param>

      			<load-on-startup>1</load-on-startup>

  		</servlet>

  		<servlet-mapping>

      		<servlet-name>springmvc</servlet-name>

      		<url-pattern>*.do</url-pattern>

  		</servlet-mapping>

Step4.写自己的Controller实现spring框架中的Controller,重写handleRequest方法

		/**

		 * ModelAndView有两个常用构造器

		 * ModelAndView(String viewName)

		 * ModelAndView(String viewName, Map data)	viewName:视图名	data:处理结果

		 * */

Step5.写自己的jsp

Step6.在spring配置文件中,添加HandlerMapping,ViewResolver配置

	<!-- 配置HandlerMapping -->

	<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">

		<property name="mappings">

			<props>

				<prop key="/hello.do">helloController</prop>

			</props>

		</property>

	</bean>

	<!-- 配置Controller -->

	<bean id="helloController" class="controller.HelloController"/>

	<!-- 配置视图解析器 -->

	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

		<property name="prefix" value="/WEB-INF/"/>

		<property name="suffix" value=".jsp"/>

	</bean>