spring mvc返回的responsebody中文乱码

配置这段代码即可解决问题：

<mvc:annotation-driven>
    <mvc:message-converters register-defaults="false">
        <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
            <property name="supportedMediaTypes">
                <list>
                    <value>text/html;charset=utf-8</value>
                    <value>application/json;charset=utf-8</value>
                </list>
            </property>
        </bean>
    </mvc:message-converters>
</mvc:annotation-driven>