spring mvc json返回中文乱码 配置后依然不好使

<context:annotation-config />
    <context:component-scan base-package="may.web.action"></context:component-scan>
     <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
               <property name="messageConverters">
                   <list>
                        <bean class = "org.springframework.http.converter.StringHttpMessageConverter">    
                 <property name = "supportedMediaTypes">   
                       <list>    
                         <value>text/plain;charset=UTF-8</value>
                         <value>application/json;charset=UTF-8</value>    
                     </list>    
                 </property>  
                    </bean> 
                    <bean  class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />
                 </list>
           </property>
           <property name="webBindingInitializer">  
               <bean class="may.filter.MyBindingInitializer"/>  
           </property>
        </bean> 

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
       <property name="viewClass"
                   value="org.springframework.web.servlet.view.JstlView" />
       <property name="prefix" value="/jsp/"></property>  
       <property name="suffix" value=".jsp"></property>  
       </bean>
   <mvc:annotation-driven/>
</beans>

xml已经配置了  但是还是中文乱码  还是text/plain:charset=ISO8859-1，自己弄了一下午 但还是不好使