Filter 配置多个URL-PATTERN

一、完全错误的方式

 <filter>
     <filter-name>authority</filter-name>
     <filter-class>com.util.AuthorityFilter</filter-class>
 </filter>
 <filter-mapping>
     <filter-name>authority</filter-name>
     <url-pattern>/pages/cmm/*;/pages/genbill/*</url-pattern>
 </filter-mapping>

二、有一定作用，但不能实现需要的效果，只会过滤最下面配置的url-pattern。 

 <filter>
     <filter-name>authority</filter-name>
     <filter-class>com.util.AuthorityFilter</filter-class>
 </filter>
 <filter-mapping>
     <filter-name>authority</filter-name>
     <url-pattern>/pages/cmm/*</url-pattern>
        <url-pattern>/pages/genbill/*</url-pattern>
 </filter-mapping>

三、现在给出正确的配置方式 

 <filter>
     <filter-name>authority</filter-name>
     <filter-class>com.util.AuthorityFilter</filter-class>
 </filter>
 <filter-mapping>
     <filter-name>authority</filter-name>
        <url-pattern>/pages/genbill/*</url-pattern>
 </filter-mapping>
 <filter-mapping>
     <filter-name>authority</filter-name>
     <url-pattern>/pages/cmm/*</url-pattern>
 </filter-mapping>