Struts 2 问题 tomcat 启动出错。 web.xml 配置问题。

Question

CSDN 半天才能回贴呀？
字数限制，发不全呀。
严重: End event threw exception
java.lang.reflect.InvocationTargetException
        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.tomcat.util.IntrospectionUtils.callMethod1(IntrospectionUt
ils.java:898)
        at org.apache.tomcat.util.digester.SetNextRule.end(SetNextRule.java:192)        at org.apache.tomcat.util.digester.Rule.end(Rule.java:228)
        at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:105
7)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endEleme
nt(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l.scanEndElement(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l$FragmentContentDispatcher.dispatch(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l.scanDocument(Unknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(U
nknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(U
nknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown So
urce)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Un
known Source)
        at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1561)
        at org.apache.catalina.startup.ContextConfig.applicationWebConfig(Contex
tConfig.java:351)
        at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:10
34)
        at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfi
g.java:260)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:119)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4
119)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:759)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:73
9)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:809)        at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:698
)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:472
)
        at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122)
        at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
:310)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:119)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021)        at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442
)
        at org.apache.catalina.core.StandardService.start(StandardService.java:4
50)
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:709
)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
        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:294)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
Caused by: java.lang.IllegalArgumentException: Filter mapping specifies an unkno
wn filter name Struts2
        at org.apache.catalina.core.StandardContext.addFilterMap(StandardContext
.java:2067)
        ... 44 more
2007-10-17 16:41:03 org.apache.catalina.startup.ContextConfig applicationWebConf
ig
严重: Parse error in application web.xml file at jndi:/localhost/first/WEB-INF/w
eb.xml
java.lang.IllegalArgumentException: Filter mapping specifies an unknown filter n
ame Struts2
        at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.
java:2725)
        at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.
java:2751)
        at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:106
0)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endEleme
nt(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l.scanEndElement(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l$FragmentContentDispatcher.dispatch(Unknown Source)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l.scanDocument(Unknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(U
nknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(U
nknown Source)
        at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown So
urce)
        at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Un
known Source)
        at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1561)
        at org.apache.catalina.startup.ContextConfig.applicationWebConfig(Contex
tConfig.java:351)
        at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:10
34)
        at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfi
g.java:260)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:119)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4
119)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:759)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:73
9)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:809)        at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:698
)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:472
)
        at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122)
        at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java
:310)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(Lifecycl
eSupport.java:119)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021)        at org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013)        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442
)
        at org.apache.catalina.core.StandardService.start(StandardService.java:4
50)
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:709
)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:551)
        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:294)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
2007-10-17 16:41:03 org.apache.catalina.startup.ContextConfig applicationWebConf
ig

Answer 1

<filter > 
<filter-name >struts2 </filter-name > 
<filter-class >org.apache.struts2.dispatcher.FilterDsipatcher </filter-class > 
</filter > 
<filter-mapping > 
<filter-name >Struts2 </filter-name > 
<url-pattern >/* </url-pattern > 
</filter-mapping > 名字写错了,把Struts2 改为struts2就行了

Answer 2

1。首先检查你的tomcat版本，tomcat5.5以下的话，你换了tomcat再尝试吧。
2。注意xml的空格等，一个东西不能错，多一个空格也是不允许的
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Struts 2.0 Hello World</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>

Answer 3

谢谢上面的2位，解决一个问题，新问题又出来了。先把这贴结了再说继续有问题
http://topic.csdn.net/u/20071019/18/76d05f45-45bb-40af-998f-7af879e9ceab.html