spring mvc中应用@ResponseBody的配置

在spring的配置文件中添加json转换器即可

 <bean class ="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" >  
    <property name="messageConverters">  
  <list>  
   <ref bean="mappingJacksonHttpMessageConverter" /> 
  list>  
property>  
bean>      
<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />