使用Tomcat，@ WebFilter不适用于 在web.xml中

这是Tomcat7中的错误。我将其报告为问题53354。

由于无法在中指定调用顺序

@WebFilter

，因此用户被迫

<filter-mapping>

在web.xml中明确指定。可以与

@WebFilter(filterName)

Glassfish和JBoss AS
中的结合使用，如下所示：

@WebFilter(filterName="filter1")public class Filter1 implements Filter {}@WebFilter(filterName="filter2")public class Filter2 implements Filter {}

与

<filter-mapping>    <filter-name>filter1</filter-name>    <url-pattern>/url1/*</url-pattern></filter-mapping><filter-mapping>    <filter-name>filter2</filter-name>    <url-pattern>/url2/*</url-pattern></filter-mapping>

然而，它在Tomcat的7.0.27失败，出现以下异常混乱（的

<url-pattern>

是 被设定）

Caused by: java.lang.IllegalArgumentException: Filter mapping must

specify either a or a
at
org.apache.catalina.core.StandardContext.validateFilterMap(StandardContext.java:3009)
at
org.apache.catalina.core.StandardContext.addFilterMap(StandardContext.java:2968)
at
org.apache.catalina.deploy.WebXml.configureContext(WebXml.java:1207)
at
org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1294)
at
org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:855)
at
org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:345)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.util.Lifecyclebase.fireLifecycleEvent(Lifecyclebase.java:90)
at
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5161)
at
org.apache.catalina.util.Lifecyclebase.start(Lifecyclebase.java:150)
… 7 more

同时，最好的选择是使用Glassfish或JBoss AS，或者

<filter>