spring velocity乱码问题

<bean id= "velocityConfig " class= "org.springframework.web.servlet.view.velocity.VelocityConfigurer ">
<property name= "resourceLoaderPath ">
<value> / </value>
</property>
<property name= "velocityProperties ">
<props>
<prop key= "input.encoding "> gb2312 </prop>
<prop key= "output.encoding "> gb2312 </prop>