JSON / Ajax in Spring MVC

How do you configure your Spring MVC web application to serve JSON for Ajax? It is not difficult. You probably have a view resolver in your dispatcher-servlet.xml that looks like this:

<bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver"
        p:viewClass="org.springframework.web.servlet.view.JstlView"
        p:prefix="/WEB-INF/jsp/"
        p:suffix=".jsp"></bean>

In order to serve JSON content, you need to use the ContentNegotiatingViewResolver. The configuration looks like this:
Read more