未配置服务器实例.找不到类:VersionLoggerListener

Question

我正在尝试在Eclipse Luna中设置tomcat 7.0.57来运行Web应用程序.我已将webapp添加到服务器,并尝试发布该服务但我收到此错误:

Dec 05, 2014 10:07:13 AM org.apache.tomcat.util.digester.Digester startElement
SEVERE: Begin event threw exception
java.lang.ClassNotFoundException: org.apache.catalina.startup.VersionLoggerListener
    at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:144)
    at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509)
    at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2786)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)
    at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:617)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:665)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:281)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:455)

Dec 05, 2014 10:07:13 AM org.apache.catalina.startup.Catalina load
WARNING: Catalina.start using conf/server.xml: Error at (21, 76) : org.apache.catalina.startup.VersionLoggerListener
Dec 05, 2014 10:07:13 AM org.apache.tomcat.util.digester.Digester startElement
SEVERE: Begin event threw exception
java.lang.ClassNotFoundException: org.apache.catalina.startup.VersionLoggerListener
    at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.apache.tomcat.util.digester.ObjectCreateRule.begin(ObjectCreateRule.java:144)
    at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509)
    at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1343)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2786)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)
    at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:617)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:679)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:456)

Dec 05, 2014 10:07:13 AM org.apache.catalina.startup.Catalina load
WARNING: Catalina.start using conf/server.xml: Error at (21, 76) : org.apache.catalina.startup.VersionLoggerListener
Dec 05, 2014 10:07:13 AM org.apache.catalina.startup.Catalina start
SEVERE: Cannot start server. Server instance is not configured.

显然有些东西是错的,VersionLoggerListener因为它无法找到它.我在第21行包含的所有server.xml(通过我的工作区文件夹访问)是:

<Listener className="org.apache.catalina.startup.VersionLoggerListener"/>

这看起来很无辜.谷歌搜索似乎没有告诉我其他人tomcat包中缺少这个.

检查tomcat的"安装",看起来这个等效的server.xml中缺少这一行

它们应该是一样的吗？我应该指向Workspace版本或安装版本？

我不知道到底发生了什么,这里暗示他们的等价ThreadLocalLeakPreventionListener物最近被添加了,这是某种版本冲突,我不认为这是(？),因为它们都是tomcat的第7版.

在这里它看起来像一个罐子丢失,但我不知道会发生什么,因为我肯定VersionLoggerListener是catalina的核心类,应该作为安装的一部分.

那是什么？

Answer 1

我在将Tomcat7切换到Tomcat6时遇到了同样的问题.

因为文件夹下的conf文件CATALINA_BASE夹,你使用的是来自当前版本的不同tomcat版本.

在Tomcat中7,你会发现VersionLoggerListener在server.xml

启动Tomcat,只需更改文件夹指向的新位置CATALINA_BASE与conf文件夹或删除conf文件夹,并与您当前的tomcat的conf替换它.

对于Eclipse,服务器文件夹:.metadata\.plugins\org.eclipse.wst.server.core\tmp0\conf

Answer 2

我有两个不同版本的 Tomcat。我删除了服务器（使用服务器视图），然后重新添加它指向安装。