配置属性编辑器：

 在springmvc.xml中配置：

 <!-- 注解驱动 -->

     <mvc:annotation-driven conversion-service="conversionService">

     </mvc:annotation-driven>

 <!-- 自定义注册属性编辑器 -->

     <bean id="conversionService"

         class="org.springframework.format.support.FormattingConversionServiceFactoryBean">

         <property name="converters">

             <list>

                 <bean class="yycg.base.action.converters.StringTrimConverter" />

                 <bean class="yycg.base.action.converters.DateConverter" />

                 <bean class="yycg.base.action.converters.DatetimeConverter" />

             </list>

         </property>

     </bean>