严重: Exception starting filter struts2 java.lang.NullPointerException

最新推荐文章于 2022-04-06 08:11:39 发布

原创最新推荐文章于 2022-04-06 08:11:39 发布 · 535 阅读

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本文探讨了在使用Struts2框架时遇到的严重错误：Exception starting filters和NullPointerException的问题，通过分析日志信息，发现是由于多余的jar包导致的配置冲突。文章提供了解决方案，即清理或移除多余的jar包，并通过重启Tomcat服务器来解决问题。

严重: Exception starting filter struts2

java.lang.NullPointerException

at com.opensymphony.xwork2.util.FileManager$FileRevision.needsReloading(FileManager.java:209)

at com.opensymphony.xwork2.util.FileManager.fileNeedsReloading(FileManager.java:60)

at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.needsReload(XmlConfigurationProvider.java:325)

at org.apache.struts2.config.StrutsXmlConfigurationProvider.needsReload(StrutsXmlConfigurationProvider.java:168)

at com.opensymphony.xwork2.config.ConfigurationManager.conditionalReload(ConfigurationManager.java:220)

at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:61)

at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:774)

...........................

2010-7-3 20:42:07 org.apache.catalina.core.StandardContext start

严重: Error filterStart

2010-7-3 20:42:07 org.apache.catalina.core.StandardContext start

严重: Context [/Struts2_0200_Namespace] startup failed due to previous errors

2010-7-3 20:42:07 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap

严重: A web application created a ThreadLocal with key of type [null] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@6dbfb0]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@143f787]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.

2010-7-3 20:42:07 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap

严重: A web application created a ThreadLocal with key of type [null] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@12fe9bf]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@9b1e15]) but failed to remove it when the web application was stopped. To prevent a memory leak, the ThreadLocal has been forcibly removed.

以上产生这些原因主要是jar多余了，伤处一下几个jar重启tomcat，ok