Spring MVC 利用 @ResponseBody 注解返回JSON

Spring MVC 利用 @ResponseBody 注解返回JSON

- 错误

Tjavascript:;he DispatcherServlet configuration needs to include a HandlerAdapter that supports this handler

- 解决方案

<bean id="messageAdapter"    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<!-- Support JSON -->
<bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"/>
</list>
</property>
</bean>
<bean id="exceptionMessageAdapter" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerExceptionResolver">
<property name="messageConverters">
<list>
<!-- Support JSON -->
<bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"/>
</list>
</property>
</bean>

<context:annotation-config/>
<mvc:annotation-driven />

我相信你更倾向于第二种方式吧