springMVC中文乱码问题

<filter>
    <filter-name>myfilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
        <param-name>encoding</param-name>
        <param-value>UTF-8</param-value>
    </init-param>
</filter>
<filter-mapping>
     <filter-name>myfilter</filter-name>
     <url-pattern>*.do</url-pattern>
    <!--   <servlet-name>springmvc</servlet-name>  -->
    
</filter-mapping>