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  MVC -- Controller
 
Subject: MVC -- Controller
Author: WebSpider
In response to: Spring MVC -- Configuration
Posted on: 11/23/2017 02:35:24 AM

@Controller
public class HomeController {
	/**
	 * Simply selects the home view to render by returning its name.
	 */
	@RequestMapping(value = "/index", method = RequestMethod.GET)
	public String home(Locale locale, Model model) 
        {
		String server_timestamp = new Date().toString();
		model.addAttribute("serverTime", server_timestamp);
		return "home";
	}
}


With the above code, the Spring Framework can do following jobs:
  • @Controller -- The class HomeController has been annotated as a controller
  • @RequestMapping(value = "/index", method = RequestMethod.GET) -- The HTTP GET request http://<host>:<port>/<context>/index will be served by the annotated method home(Locale locale, Model model)
  • Locale locale, Model model -- Dependencies will be injected silently under the hood by Spring Framework
  • return "home" -- The view will be rendered by "<prefix>home<suffix>" with the help of dispatch-servlet.xml


     
    > 
    > On 11/23/2017 02:31:39 AM WebSpider wrote:

    /WEB-INF/web.xml
    	<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/spring/*.xml</param-value>
	</context-param>
	
	<!-- LISTENERS -->
	<!-- Creates the Spring Container shared by all Servlets and Filters -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>


	<!-- FILTERS -->
	<!-- Creates the filters shared by all Servlets and Filters -->
	<!-- ... -->

	<!-- SERVLETS -->
	<servlet>
		<servlet-name>myServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>/WEB-INF/spring/myServlet/dispatch-servlet.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
		
	<servlet-mapping>
		<servlet-name>myServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>



    dispatch-servlet.xml
    	<!-- Resolves views selected for rendering by @Controller  -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- bean injection by constructor 
		<constructor-arg></constructor-arg>
		-->
		<!-- bean injection by setter -->
		<property name="prefix" value="/WEB-INF/views/" />
		<property name="suffix" value=".jsp" />
	</bean>

	<!-- Auto-detection for annotation @Controllers  -->
	<context:component-scan base-package="com.xyz.springmvc" />
	<context:component-scan base-package="com.xyz.springmvc2" />




    References:

    		•  


     
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