I was reading the Spring 3.0 Documentation and Blog Posts (followups) on how to create REST style services with Spring MVC but I can't find any working example on how to use the ContentNegotiatingViewResolver. I have a test controller like this
@Controller
public class IndexController implements Serializable
{
@RequestMapping("/index")
public ModelAndView index()
{
ModelAndView mav = new ModelAndView();
mav.setViewName("index");
return mav;
}
}
and tried to use something like this
<bean
class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<property name="mediaTypes">
<map>
<entry key="html" value="text/html" />
<entry key="xml" value="text/xml" />
<!--
<entry key="json" value="application/json"/>
-->
</map>
</property>
<property name="defaultContentType"><value>text/html</value></property>
<property name="defaultViews">
<bean class="org.springframework.web.servlet.view.xml.MarshallingView">
<property name="marshaller">
<bean class="org.springframework.oxm.xstream.XStreamMarshaller" />
</property>
</bean>
</property>
<property name="viewResolvers">
<list>
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/pages/" />
<property name="suffix" value=".jsp" />
</bean>
</list>
</property>
</bean>
trying to resolve the views according to the extension in the URL (I want to support html, .xml and .json). The .html view works (showing the correct JSP view, too) but nothing else I tried for getting JSON and XML up and running seems to work (setting the defaultViews property was just one of the things I tried). There doesn't seem to be that much reading material either. Does anybody have experience or examples?
Best Solution
I believe you're problem is that the content-type of XML is not
text/xml
, it'sapplication/xml
. You'll find thatMarshallingView
will not accept a content type oftext/xml
.What
ContentNegotiatingViewResolver
does is consult each of its views, asking them if they'll accept the content type that was resolved from the request. For each content type you want to support, you need a view with a matchingcontentType
property.You can either change the content type in the
mediaTypes
property, or you can overridecontentType
property ofMarshallingView
to betext/xml
.