Docs: Rework mvc-jsp section with JavaConfig example (per review feedback)

framework-docs/modules/ROOT/pages/web/webmvc-view/mvc-jsp.adoc

@@ -9,19 +9,41 @@ The Spring Framework has a built-in integration for using Spring MVC with JSP an
 
 When developing with JSPs, you typically declare an `InternalResourceViewResolver` bean.
 
-`InternalResourceViewResolver` can be used for dispatching to any Servlet resource but in
-particular for JSPs. As a best practice, we strongly encourage placing your JSP files in
-a directory under the `'WEB-INF'` directory so there can be no direct access by clients.
+`InternalResourceViewResolver` can be used for dispatching to any Servlet resource but in particular for JSPs.
+As a best practice, we strongly encourage placing your JSP files in a directory under the `WEB-INF` directory so there can be no direct access by clients.
 
-[source,xml,indent=0,subs="verbatim,quotes"]
+[source,java]
 ----
-	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
-		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
-		<property name="prefix" value="/WEB-INF/jsp/"/>
-		<property name="suffix" value=".jsp"/>
-	</bean>
+@EnableWebMvc
+@Configuration
+public class WebConfig implements WebMvcConfigurer {
+
+    @Override
+    public void configureViewResolvers(ViewResolverRegistry registry) {
+        // Use sensible defaults
+        registry.jsp();
+        // Example of customizing:
+        // registry.jsp("/WEB-INF/views/", ".jsp");
+    }
+}
 ----
 
+[NOTE]
+====
+For legacy XML configuration:
+
+[source,xml]
+----
+<mvc:view-resolvers>
+    <mvc:jsp prefix="/WEB-INF/jsp/" suffix=".jsp"/>
+</mvc:view-resolvers>
+----
+
+Prefer JavaConfig for new applications.
+====
+
+[.text-muted]
+See the Javadoc of ViewResolverRegistry#jsp() for default prefix and suffix values.
 
 [[mvc-view-jsp-jstl]]
 == JSPs versus JSTL