Exception starting filter struts2 此异常如何解决?

jsd117 2009-10-05 08:29:15
1.异常详细如下:
2009-10-5 20:20:31 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\MyEclipse 6.0\bin;C:\Program Files\Apache Software Foundation\Tomcat 5.5\bin
2009-10-5 20:20:31 org.apache.coyote.http11.Http11BaseProtocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2009-10-5 20:20:31 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 750 ms
2009-10-5 20:20:31 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2009-10-5 20:20:31 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.25
2009-10-5 20:20:31 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
20:20:33,031 [main] INFO PropertyUtils : 文件[C:\Tomcat 5.5\webapps\itcastForum/WEB-INF/config/database/mysql/mysql.properties] 不存在! ==> cn.itcast.bbs.util.PropertyUtils.loadFileToProperties(PropertyUtils.java:21)
2009-10-5 20:20:42 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(C:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\Struts2-0100\WEB-INF\lib\javaee.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
2009-10-5 20:20:42 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Parsing configuration file [struts-default.xml]
2009-10-5 20:20:43 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Unable to locate configuration files of the name struts-plugin.xml, skipping
2009-10-5 20:20:43 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Parsing configuration file [struts-plugin.xml]
2009-10-5 20:20:43 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Parsing configuration file [struts.xml]
2009-10-5 20:20:43 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Overriding property struts.i18n.reload - old value: false new value: true
2009-10-5 20:20:43 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
信息: Overriding property struts.configuration.xml.reload - old value: false new value: true
2009-10-5 20:20:43 org.apache.catalina.core.StandardContext filterStart
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)
at org.apache.struts2.dispatcher.ng.InitOperations.initStaticContentLoader(InitOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:49)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:221)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:302)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:78)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3635)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4222)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:448)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
2009-10-5 20:20:43 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2009-10-5 20:20:43 org.apache.catalina.core.StandardContext start
严重: Context [/Struts2-0100] startup failed due to previous errors
2009-10-5 20:20:43 org.apache.coyote.http11.Http11BaseProtocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2009-10-5 20:20:44 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2009-10-5 20:20:44 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/47 config=null
2009-10-5 20:20:44 org.apache.catalina.storeconfig.StoreLoader load
信息: Find registry server-registry.xml at classpath resource
2009-10-5 20:20:44 org.apache.catalina.startup.Catalina start
信息: Server startup in 12922 ms

2.web.xml是这样配置的:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

</web-app>

3.struts.xml如下:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

<constant name="struts.devMode" value="true"></constant>

<package name="default" extends="struts-default" namespace="/">
<action name="hello">
<result>/Hello.jsp</result>
</action>
</package>
</struts>

4.主要原因是在struts里加了一句“<constant name="struts.devMode" value="true"></constant>”,就出现了以上异常,去掉后没有异常。。找了好久没找到解决办法。
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小草君 2012-05-13
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哈哈哈。。就是tomcat路径有空格的问题!!!
风之行top 2011-02-18
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可能是tomcat根目录有空格,可以把根目录tomcat 6.0空格去掉,重命名为tomcat6.0,然后该下Myeclipse的server配置
NiZaiNaLiDengWo 2010-05-21
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重装tomcat,在安装tomcat时注意路径不要有空格。
nzc123 2010-04-17
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[Quote=引用 3 楼 liangzhenphp 的回复:]

我也遇到过这种问题,tomcat路径名中有空格造成的。
C:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps
把空格去掉就可以了 C:\Program Files\Apache Software Foundation\Tomcat5.5\webapps
[/Quote]
这个空格怎么改? 重装TOMCAT吗?
leihuanhuan123 2010-04-01
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问题是tomcat安装是有空格导致的错误,把tomcat重新安装不要有文件夹都不要有空格就行,是2.1.6jar的一个bug 我就是这个问题 改了好了
injuer 2010-04-01
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<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
为什么要配在最后面?程序都XML是从上到下读,你这样配服务器启动再去加载你的SUTRTS2怎么可能加载的到!
liangzhenphp 2009-10-15
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最好把tomcat装在顶级目录中,路径名中没有空格
liangzhenphp 2009-10-15
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我也遇到过这种问题,tomcat路径名中有空格造成的。
C:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps
把空格去掉就可以了 C:\Program Files\Apache Software Foundation\Tomcat5.5\webapps
jkhello 2009-10-13
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我也是哈 。不知道为什么。。加上它 <constant name="struts.devMode" value="true" /> 就报错009-10-13 23:20:27 org.apache.catalina.core.StandardContext start
严重: Error filterStart
2009-10-13 23:20:27 org.apache.catalina.core.StandardContext start
严重: Context [/STRUST2_0100_introduction] startup failed due to previous errors
不知道为什么。。为了 看到改了action .马上看到效果。。才加<constant name="struts.devMode" value="true" />的。
zml2009 2009-10-07
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<constant name="struts.devMode" value="true"> </constant>
只是一种模式,应该不是这的问题

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