springmvc解决ajax返回json数据乱码问题

<bean id="stringHttpMessageConverter"
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>
<!-- 避免IE执行AJAX时,返回JSON出现下载文件 -->
<!-- Jackson 是Spring 自带的功能 -->
<bean id="mappingJackson2HttpMessageConverter"
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json;charset=UTF-8</value>
<value>application/xml;charset=UTF-8</value>
<value>text/html;charset=UTF-8</value>
<value>text/plain;charset=UTF-8</value>
<value>text/xml;charset=UTF-8</value>
<value>text/javascript;charset=UTF-8</value>
</list>
</property>
</bean>
<mvc:annotation-driven>
<mvc:message-converters>
<ref bean="stringHttpMessageConverter" />
<ref bean="mappingJackson2HttpMessageConverter" />
</mvc:message-converters>
</mvc:annotation-driven>