spring中处理中文乱码的一个过滤器配置

 <filter>
    <filter-name>Spring character encoding filter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
     <param-name>encoding</param-name>
     <param-value>GBK</param-value>
    </init-param>
  </filter>
 <filter-mapping>
    <filter-name>Spring character encoding filter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>