jsp学习笔记

 <filter>
       <filter-name>CharacterEncodingFilter</filter-name>
       <filter-class>net.vschool.web.CharacterEncodingFilter</filter-class>
       <init-param>
       <param-name>encoding</param-name>
       <param-value>GBK</param-value>
       </init-param>
 </filter>
       <filter-mapping>
       <filter-name>CharacterEncodingFilter</filter-name>
       <url-pattern>/*</url-pattern>
</filter-mapping>