Tiles view and Json view independently

[Ponnusamy Gov]

Dear All,

I am using tiles view and json view for viewing purpose in spring framework 2.5.6. But in some application servers i am getting below error.

0000007b servlet E com.ibm.ws.webcontainer.servlet.ServletWrapper service SRVE0068E: Uncaught exception created in one of the service methods of the servlet corporateuser in application corpuser_2404_war. Exception created : javax.servlet.ServletException: No Tiles definition found for name 'jsonView'
at org.springframework.web.servlet.view.tiles.TilesView.prepareForRendering(TilesView.java:104)
at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:212)

Code to specify the json view:

	public ModelAndView mailAlert(HttpServletRequest request, HttpServletResponse response) throws Exception {
		.....some code here....
			try {
				response.setContentType("application/json");
				PrintWriter out = response.getWriter();

			
					JSONObject jsonObject = new JSONObject();
Object returnObject = new Object();
					try {
						JSONArray jsonArray = new JSONArray();
						String test="test";
						JSONObject jo = JSONObject.fromObject(test);
						jsonArray.add(jo);
						jsonObject.put(UIConstant.JSON_DATA_ROOT_KEY, jsonArray);
						jsonObject.put(UIConstant.JSON_TOTAL_COUNT, new Integer(2));
						jsonObject.put(UIConstant.JSON_SUCCESS_KEY, true);
					} catch (Throwable t) {
						jsonObject.put(UIConstant.JSON_SUCCESS_KEY, false);
					}
					returnObject = jsonObject;

				
				out.print(returnObject);
				out.flush();
				out.close();
			} catch (Exception e) {
				e.printStackTrace();
			}

		}
		return new ModelAndView("jsonView");

	}

xml configuration for json view:

 jsonview.xml file :<bean name="jsonView" class="net.sf.json.spring.web.servlet.view.JsonView" />

view resolver for json:
<bean id="xmlFileViewResolver" class="org.springframework.web.servlet.view.XmlViewResolver">
		<property name="location">
			<value>/WEB-INF/json-view.xml</value>
		</property>
		<property name="order">
			<value>1</value>
		</property>
	</bean>

Any one have any idea why this tiles error is coming since two views are configured properly.

thanks,
Pons

[Mark Spritzler]

Simply because you are passing the "String" in the ModelAndView that the ViewResolver uses to resolve the view. It is most likely being resolved by the Tiles Configurer/View Resolver and not by the File one in your configuration. Basically all view resolvers will get the string your return, and the first one to say something wins, so in your case the Tiles one gets it first.

Mark

[Sudhir Ravindra]

Your controller has already done the work of writing the json into the response. You need to return null from the controller to ensure that spring mvc does not forward further to a view.