Java Tomcat7-org.apache.catalina.LifecycleException:无法启动组件

今天晚上，我把一个更新推到我的Tomcat7服务器上，现在它似乎无法正常启动。每当我试图在网络浏览器中打开网站时，Chrome就会告诉我链接“似乎断了”

在发生这种损坏之前，我所做的只是更新了

webapps/ROOT/WEB-INF/classes

文件夹中的一些java代码。所有更新的类都是一组java类和两个servlet

起初我认为我的web-INF文件夹中的

web.xml

不正确，但我检查了它，它是正确的（配置与桌面上的测试服务器相同）

这是我从我的

catalina.out

中得到的stacktrace

任何帮助都将不胜感激。我似乎找不到这个特定错误的位置

Jun 29, 2013 8:16:07 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Jun 29, 2013 8:16:07 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 595 ms
Jun 29, 2013 8:16:07 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Jun 29, 2013 8:16:07 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.30
Jun 29, 2013 8:16:07 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor /etc/tomcat7/Catalina/localhost/examples.xml
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jstl/core_rt is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jstl/core is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jsp/jstl/core is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jstl/fmt_rt is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jstl/fmt is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jsp/jstl/fmt is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jsp/jstl/functions is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://jakarta.apache.org/taglibs/standard/permittedTaglibs is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://jakarta.apache.org/taglibs/standard/scriptfree is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jstl/sql_rt is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jstl/sql is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jsp/jstl/sql is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jstl/xml_rt is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jstl/xml is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://java.sun.com/jsp/jstl/xml is already defined
Jun 29, 2013 8:16:08 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /var/lib/tomcat7/webapps/uploads
Jun 29, 2013 8:16:09 PM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /var/lib/tomcat7/webapps/ROOT
Jun 29, 2013 8:16:09 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: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:618)
        at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1100)
        at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1618)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
        at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2068)
        at org.apache.catalina.startup.ContextConfig.processAnnotationsFile(ContextConfig.java:2069)
        at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1296)
        at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878)
        at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:369)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
        at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5173)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 11 more

Jun 29, 2013 8:16:09 PM org.apache.catalina.startup.HostConfig deployDirectory
SEVERE: Error deploying web application directory /var/lib/tomcat7/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:904)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618)
        at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1100)
        at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1618)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:722)

Jun 29, 2013 8:16:09 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Jun 29, 2013 8:16:09 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1517 ms

---

确保更新的类文件具有正确的文件系统权限。您可以使用linux命令检查权限

ls-l

您是否在日志文件

localhost..log

中看到任何错误？是否检查更新的类文件是否具有正确的文件系统权限？如何确保更新的类文件具有正确的权限？在我进行更新之前，一切正常，我想我没有向新库添加任何函数调用。您可以使用linux命令

ls-l

检查文件权限。你是如何更新课程的？你重新部署了战争吗？修正了！我只是将更新后的类文件放到classes文件夹中，结果权限设置不正确。我改了，现在可以用了！谢谢我已将其添加为答案，以便您可以接受：）