tomcat启动出现错误代码，如下

Question

SEVERE: ContainerBase.addChild: start: 

org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/MicroMessage]]

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)

at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263)

at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1978)

at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)

at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)

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)

Caused by: java.lang.NoClassDefFoundError: javax/faces/webapp/FacesServlet

at com.sun.faces.config.FacesInitializer.<clinit>(FacesInitializer.java:103)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Unknown Source)

at org.apache.catalina.startup.WebappServiceLoader.loadServices(WebappServiceLoader.java:192)

at org.apache.catalina.startup.WebappServiceLoader.load(WebappServiceLoader.java:157)

at org.apache.catalina.startup.ContextConfig.processServletContainerInitializers(ContextConfig.java:1577)

at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1281)

at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:889)

at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:386)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)

at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5405)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)

... 11 more

Caused by: java.lang.ClassNotFoundException: javax.faces.webapp.FacesServlet

at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1854)

at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1703)

... 24 more

十二月 13, 2015 12:18:19 下午 org.apache.catalina.startup.HostConfig deployDirectory

SEVERE: Error deploying web application directory C:\apache-tomcat-7.0.65-windows-x86\apache-tomcat-7.0.65\webapps\MicroMessage

java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/MicroMessage]]

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:905)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)

at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1263)

at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1978)

at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)

at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)

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)

Answer 1

是不是web.xml 中<servlet-mapping>里面的 <servlet-name></servlet-name>中间的名字写错了