我在Tomcat 7服务器启动时遇到此异常。我正在使用eclipse IDE。我不知道为什么会出现这种异常。我的申请一段时间以前工作正常。我的构建路径也没有做任何更改。这是堆栈跟踪。
Feb 16, 2015 10:06:38 PM org.apache.catalina.core.JasperListener lifecycleEvent
WARNING: Couldn't initialize Jasper
java.lang.ClassNotFoundException: org.apache.jasper.compiler.JspRuntimeContext
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.apache.catalina.core.JasperListener.lifecycleEvent(JasperListener.java:63)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:402)
at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:99)
at org.apache.catalina.startup.Catalina.load(Catalina.java:638)
at org.apache.catalina.startup.Catalina.load(Catalina.java:663)
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.load(Bootstrap.java:280)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:454)
Feb 16, 2015 10:06:39 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Feb 16, 2015 10:06:39 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Feb 16, 2015 10:06:39 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1452 ms
Feb 16, 2015 10:06:39 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Feb 16, 2015 10:06:39 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.57
Feb 16, 2015 10:06:40 PM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [590] milliseconds.
Feb 16, 2015 10:06:40 PM org.apache.catalina.core.ApplicationContext log
INFO: Marking servlet jsp as unavailable
Feb 16, 2015 10:06:40 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet threw load() exception
java.lang.ClassNotFoundException: org.apache.jasper.servlet.JspServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:506)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:488)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:115)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1148)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5231)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5518)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Feb 16, 2015 10:06:40 PM org.apache.catalina.loader.WebappClassLoader validateJarFile
INFO: validateJarFile(D:\Workspaces\Inventory\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\rms\WEB-INF\lib\javax.servlet-api-3.0.1.jar) - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending class: javax/servlet/Servlet.class
Feb 16, 2015 10:06:41 PM org.apache.catalina.core.ApplicationContext log
INFO: Marking servlet jsp as unavailable
Feb 16, 2015 10:06:41 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /rms threw load() exception
java.lang.ClassNotFoundException: org.apache.jasper.servlet.JspServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:506)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:488)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:115)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1148)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5231)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5518)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
我看到其他问题，其中有人提出问题可能是JRE运行时指向jdk而不是jre。但我可以看到那不是我的情况。