JSON data from @ResourceMapping

pom.xml

@@ -104,6 +104,12 @@
 			<scope>provided</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>2.5.1</version>
+		</dependency>
+
 	</dependencies>
 
 	<build>

src/main/java/sample/portlet/BooksController.java

@@ -35,8 +35,11 @@
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.SessionAttributes;
 import org.springframework.web.multipart.support.ByteArrayMultipartFileEditor;
+import org.springframework.web.portlet.ModelAndView;
 import org.springframework.web.portlet.bind.PortletRequestDataBinder;
+import org.springframework.web.portlet.bind.annotation.ResourceMapping;
 import org.springframework.web.portlet.util.PortletUtils;
+import org.springframework.web.servlet.view.json.MappingJackson2JsonView;
 
 import sample.domain.Book;
 import sample.domain.BookValidator;
@@ -74,6 +77,14 @@ public String listBooks(Model model) {
         return "books";
 	}
 
+	@ResourceMapping("json")
+	public ModelAndView listBooksJson() {
+		ModelAndView mav = new ModelAndView();
+		mav.addObject("books", bookService.getAllBooks());
+		mav.setView(new MappingJackson2JsonView());
+		return mav;
+	}
+
 	// view details of a book
 
 	@RequestMapping(params="action=viewBook")

src/main/webapp/WEB-INF/jsp/books.jsp

@@ -29,6 +29,8 @@
 			<th></th>
 		</tr>
 
+		<a href="<portlet:resourceURL id="json"></portlet:resourceURL>">View JSON</a>
+
 		<c:forEach items="${books}" var="book">
 			<tr>
 				<td>${book.author}</td>

src/main/webapp/WEB-INF/jsp/include.jsp

@@ -20,7 +20,7 @@
 <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
 <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
 
-<%@ taglib prefix="portlet" uri="http://java.sun.com/portlet" %>
+<%@ taglib prefix="portlet" uri="http://java.sun.com/portlet_2_0" %>
 <%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
 <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>