spring mvc 4+ @ResponseBody 中文乱码

（1）加上produces = {"application/json;charset=UTF-8"}

@RequestMapping(value="/birthday.chtm",produces = {"application/json;charset=UTF-8"})

（2）在spring-mvc.xml中配置

注意 4+版本的spring-mvc要使用 http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd

<mvc:annotation-driven>
<mvc:message-converters>
<bean class="org.springframework.http.converter.StringHttpMessageConverter">
<constructor-arg value="#{T(java.nio.charset.Charset).forName('UTF-8')}"/>
<property name="supportedMediaTypes">
<list>
<value>text/plain;charset=UTF-8</value>
<value>text/html;charset=UTF-8</value>
<value>applicaiton/javascript;charset=UTF-8</value>
</list>
</property>
<property name="writeAcceptCharset"><value>false</value></property>
</bean>
<bean
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json; charset=UTF-8</value>
<value>application/x-www-form-urlencoded; charset=UTF-8</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>