แก้ภาษาไทยเพี้ยน springframework ajax response
applicationContext.xml
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name = "messageConverters">
<list>
<bean class = "org.springframework.http.converter.StringHttpMessageConverter">
<property name = "supportedMediaTypes">
<list>
<value>text/plain;charset=UTF-8</value>
</list>
</property>
</bean>
</list>
</property>
</bean>
ที่มา: http://forum.spring.io/forum/spring-projects/web/74209-responsebody-and-utf-8