Tomcat 8无法加载网站

Question

我是java编程的新手，并学习这方面的知识。安装在我的debian计算机上的tomcat最初可以显示默认的示例网页。但是，在用示例页面替换var/lib/tomcat8 8/webapp/ROOT中的加载文件后，网站无法在端口8080上显示。

下面是catalina.out中的输出消息：

Sep 28, 2016 10:08:31 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Sep 28, 2016 10:08:31 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deployment of configuration descriptor /etc/tomcat8/Catalina/localhost/examples.xml has finished in 694 ms
Sep 28, 2016 10:08:31 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor /etc/tomcat8/Catalina/localhost/docs.xml
Sep 28, 2016 10:08:31 PM org.apache.tomcat.util.scan.StandardJarScanner scan
WARNING: Failed to scan [file:/usr/share/java/el-api-3.0.jar] from classloader hierarchy
java.io.FileNotFoundException: /usr/share/java/el-api-3.0.jar (No such file or directory)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:43)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:323)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:273)
    at org.apache.catalina.startup.ContextConfig.processJarsForWebFragments(ContextConfig.java:1898)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1131)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:783)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:307)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5213)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Sep 28, 2016 10:08:31 PM org.apache.tomcat.util.scan.StandardJarScanner scan
WARNING: Failed to scan [file:/usr/share/java/jsp-api-2.3.jar] from classloader hierarchy
java.io.FileNotFoundException: /usr/share/java/jsp-api-2.3.jar (No such file or directory)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:43)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:323)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:273)
    at org.apache.catalina.startup.ContextConfig.processJarsForWebFragments(ContextConfig.java:1898)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1131)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:783)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:307)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5213)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Sep 28, 2016 10:08:32 PM org.apache.tomcat.util.scan.StandardJarScanner scan
WARNING: Failed to scan [file:/usr/share/java/el-api-3.0.jar] from classloader hierarchy
java.io.FileNotFoundException: /usr/share/java/el-api-3.0.jar (No such file or directory)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:43)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:323)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:273)
    at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262)
    at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:106)
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:103)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Sep 28, 2016 10:08:32 PM org.apache.tomcat.util.scan.StandardJarScanner scan
WARNING: Failed to scan [file:/usr/share/java/jsp-api-2.3.jar] from classloader hierarchy
java.io.FileNotFoundException: /usr/share/java/jsp-api-2.3.jar (No such file or directory)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:43)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:323)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:273)
    at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262)
    at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:106)
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:103)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Sep 28, 2016 10:08:32 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Sep 28, 2016 10:08:32 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deployment of configuration descriptor /etc/tomcat8/Catalina/localhost/docs.xml has finished in 410 ms
Sep 28, 2016 10:08:32 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor /etc/tomcat8/Catalina/localhost/host-manager.xml
Sep 28, 2016 10:08:32 PM org.apache.tomcat.util.scan.StandardJarScanner scan
WARNING: Failed to scan [file:/usr/share/java/el-api-3.0.jar] from classloader hierarchy
java.io.FileNotFoundException: /usr/share/java/el-api-3.0.jar (No such file or directory)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:43)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:323)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:273)
    at org.apache.catalina.startup.ContextConfig.processJarsForWebFragments(ContextConfig.java:1898)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1131)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:783)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:307)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5213)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Sep 28, 2016 10:08:32 PM org.apache.tomcat.util.scan.StandardJarScanner scan
WARNING: Failed to scan [file:/usr/share/java/jsp-api-2.3.jar] from classloader hierarchy
java.io.FileNotFoundException: /usr/share/java/jsp-api-2.3.jar (No such file or directory)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:43)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:323)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:273)
    at org.apache.catalina.startup.ContextConfig.processJarsForWebFragments(ContextConfig.java:1898)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1131)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:783)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:307)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5213)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Sep 28, 2016 10:08:32 PM org.apache.tomcat.util.scan.StandardJarScanner scan
WARNING: Failed to scan [file:/usr/share/java/el-api-3.0.jar] from classloader hierarchy
java.io.FileNotFoundException: /usr/share/java/el-api-3.0.jar (No such file or directory)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:43)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:323)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:273)
    at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262)
    at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:106)
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:103)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Sep 28, 2016 10:08:32 PM org.apache.tomcat.util.scan.StandardJarScanner scan
WARNING: Failed to scan [file:/usr/share/java/jsp-api-2.3.jar] from classloader hierarchy
java.io.FileNotFoundException: /usr/share/java/jsp-api-2.3.jar (No such file or directory)
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:219)
    at java.util.zip.ZipFile.<init>(ZipFile.java:149)
    at java.util.jar.JarFile.<init>(JarFile.java:166)
    at java.util.jar.JarFile.<init>(JarFile.java:130)
    at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:60)
    at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:43)
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:323)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:273)
    at org.apache.jasper.servlet.TldScanner.scanJars(TldScanner.java:262)
    at org.apache.jasper.servlet.TldScanner.scan(TldScanner.java:106)
    at org.apache.jasper.servlet.JasperInitializer.onStartup(JasperInitializer.java:103)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5303)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:587)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1798)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Sep 28, 2016 10:08:32 PM org.apache.jasper.servlet.TldScanner scanJars
INFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
Sep 28, 2016 10:08:32 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deployment of configuration descriptor /etc/tomcat8/Catalina/localhost/host-manager.xml has finished in 395 ms
Sep 28, 2016 10:08:32 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /var/lib/tomcat8/webapps/ROOT
Sep 28, 2016 10:08:32 PM org.apache.catalina.core.ContainerBase addChildInternal
SEVERE: ContainerBase.addChild: start: 
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1092)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1834)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
    at org.apache.tomcat.util.scan.StandardJarScanner.process(StandardJarScanner.java:322)
    at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:182)
    at org.apache.catalina.startup.ContextConfig.processJarsForWebFragments(ContextConfig.java:1898)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1131)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:783)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:307)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5213)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    ... 10 more

Sep 28, 2016 10:08:32 PM org.apache.catalina.startup.HostConfig deployDirectory
SEVERE: Error deploying web application directory /var/lib/tomcat8/webapps/ROOT
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:729)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1092)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1834)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

经过几个小时的尝试，我想知道如何解决这个问题。

Answer 1

异常显示此/usr/share/java/jsp-api-2.3.jar文件不是found.it，通常是由错误的目录或文件不存在引起的。

Answer 2

您可以在终端中使用sudo apt-get install libservlet3.1-java获取这些文件。