dwr 整合时报错

严重: Servlet /Infinity threw load() exception
java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Integer.java:417)
at java.lang.Integer.parseInt(Integer.java:499)
at org.directwebremoting.util.VersionUtil.loadProperties(VersionUtil.java:129)
at org.directwebremoting.util.VersionUtil.getLabel(VersionUtil.java:108)
at org.directwebremoting.impl.StartupUtil.logStartup(StartupUtil.java:157)
at org.directwebremoting.servlet.DwrServlet.init(DwrServlet.java:62)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1161)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:981)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4058)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4364)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:924)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:887)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

2013-5-2 1:32:56 org.apache.coyote.http11.Http11Protocol start

解决办法：

今天整合ssh+dwr的时候，出现了上面的错误。当即去网上查档，有资料说在struts的配置文件里面添加

<constant name="struts.action.excludePattern" value="/dwr/*" />

果断添加，无果。一样报上面的那个错误。

后来，淡定的听了一首歌，看别人抽了一根烟，顿时茅舍顿开。数字格式化错误啊。

火速去看配置文件里面，只有servlet加载顺序里面有数字。对，就是下面那个：

<load-on-startup>1</load-on-startup>

果断去除，再重启，大的。居然不报错了！！

PS：

虽然，木有搞明白为啥没有了就不会报错，但是，至少是解决了一下。如果，哪位大神懂得原因，还请不吝赐教。