いくつか依存JarがあるのでMavenを使うと楽。 <dependency> <groupId>securityfilter</groupId> <artifactId>securityfilter</artifactId> <version>2.0</version> </dependency> web.xmlにフィルタ設定を記述 <filter> <filter-name>securityfilter</filter-name> <filter-class>org.securityfilter.filter.SecurityFilter</filter-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/securityfilter-config.xml</param-value> </in