Sitemesh和Struts2结合时Filter的配制顺序-优快云博客

Sitemesh和Struts2结合时要特别注意它们各自Filter的顺序，否则会导致双方都不能正常工作。而又由于Struts2在2.1.3之前使用的是FilterDispatcher，2.1.3之后推荐使用StrutsPrepareFilter和StrutsExecuteFilter替代FilterDispatcher，因此配制上又会有所不同。
2.1.3之前的版本，sitemesh的filter要介于StrutsPrepareFilter和FilterDispatcher之间，配制如下：

<filter> <filter-name>struts-cleanup</filter-name> <filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class> </filter> <filter-mapping> <filter-name>struts-cleanup</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>sitemesh</filter-name> <filter-class>com.opensymphony.module.sitemesh.filter.PageFilter</filter-class> </filter> <filter-mapping> <filter-name>sitemesh</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>struts</filter-name> <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> </filter> <filter-mapping> <filter-name>struts</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>

2.1.3之后的版本，sitemesh的filter要介于StrutsPrepareFilter和StrutsExecuteFilter之间，配制如下：

<filter> <filter-name>struts-cleanup</filter-name> <filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class> </filter> <filter-mapping> <filter-name>struts-cleanup</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>struts-prepare</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter</filter-class> </filter> <filter-mapping> <filter-name>struts-prepare</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>sitemesh</filter-name> <filter-class>com.opensymphony.module.sitemesh.filter.PageFilter</filter-class> </filter> <filter-mapping> <filter-name>sitemesh</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <filter> <filter-name>struts-execute</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts-execute</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>