The resource identified by this request is only capable of generating responses

今天在调试springMVC的时候，在将一个对象返回为json串的时候，浏览器中出现异常：

 

The resource identified by this request is only capable of generating responses with characteristics not acceptable according to the request "accept" headers ().

这个错误是因为applicationContext缺少配置json转化bean：

 

<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">  
        <property name="supportedMediaTypes">  
            <list>  
                <value>application/json;charset=UTF-8</value>  
            </list>  
        </property>  
    </bean>