In Spring MVC, InternalResourceViewResolver is used to resolve “internal resource view” (in simple, it’s final output, jsp or htmp page) based on a predefined URL pattern. In additional, it allow you to add some predefined prefix or suffix to the view name (prefix + view name + suffix), and generate the final view page URL.

What’s internal resource views?
In Spring MVC or any web application, for good practice, it’s always recommended to put the entire views or JSP files under “WEB-INF” folder, to protect it from direct access via manual entered URL. Those views under “WEB-INF” folder are named as internal resource views, as it’s only accessible by the servlet or Spring’s controllers class.

Following example show you how InternalResourceViewResolver works :

1. Controller

A controller class to return a view, named “WelcomePage“.

//...
public class WelcomeController extends AbstractController{
 
	@Override
	protected ModelAndView handleRequestInternal(HttpServletRequest request,
		HttpServletResponse response) throws Exception {
 
		ModelAndView model = new ModelAndView("WelcomePage");
 
		return model;
	}
}

2. InternalResourceViewResolver

Register InternalResourceViewResolver bean in the Spring’s bean configuration file.

<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-2.5.xsd">
 
   <bean 
   class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping" />
 
	<!-- Register the bean -->
	<bean class="com.mkyong.common.controller.WelcomeController" />
 
	<bean id="viewResolver"
    	      class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
              <property name="prefix">
                  <value>/WEB-INF/pages/</value>
               </property>
              <property name="suffix">
                 <value>.jsp</value>
              </property>
        </bean>
 
</beans>

Now, Spring will resolve the view’s name “WelcomePage” in the following way :

prefix + view name + suffix = /WEB-INF/pages/WelcomPage.jsp

Download Source Code

Reference

  1. InternalResourceViewResolver documentation
Tags :
Founder of Mkyong.com and HostingCompass.com, love Java and open source stuff. Follow him on Twitter, or befriend him on Facebook or Google Plus. If you like my tutorials, consider making a donation to this charity, thanks.

Related Posts

Popular Posts