Spring MVC Json 乱码问题

1. applicationContext.xml 的配置

<!-- 基于Annotation的映射方式 -->
	<mvc:annotation-driven >
		 <mvc:message-converters register-defaults="true">
		    <bean class="org.springframework.http.converter.StringHttpMessageConverter">
                <constructor-arg value="UTF-8" />
            </bean>
            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
                 <property name="supportedMediaTypes">
		            <list>
		                <value>text/html;charset=UTF-8</value>
		            </list>
		        </property>
            </bean>
        </mvc:message-converters>
	</mvc:annotation-driven>

2.        Controller 的配置

@RequestMapping(value="/test",produces="text/plain;charset=UTF-8") 

@ResponseBody