解决SpringMVC发送中文变成乱码

<mvc:annotation-driven>
<mvc:message-converters>
<ref bean="stringHttpMessageConverter" />
</mvc:message-converters>
</mvc:annotation-driven>

<bean id="stringHttpMessageConverter"
class="org.springframework.http.converter.StringHttpMessageConverter">
<!-- 避免@ResponseBody的返回值出现乱码 -->
<constructor-arg value="UTF-8" index="0"></constructor-arg>
<property name="supportedMediaTypes">
<list>
<value>text/plain;charset=UTF-8</value>
</list>
</property>
</bean>