无法启动组件 [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/projectName]]

Question

在 tomcat-8 上运行应用程序时出现以下错误。我使用的是 Eclipse Luna-32 位、tomcat-8 32 位、Java-8 32 位。

INFO: Starting Servlet Engine: Apache Tomcat/8.0.18
Dec 24, 2015 6:36:59 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deploying configuration descriptor E:\PROJECTS\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\conf\Catalina\localhost\connect_afs_ui.xml
Dec 24, 2015 6:36:59 PM org.apache.catalina.startup.SetContextPropertiesRule begin
WARNING: [SetContextPropertiesRule]{Context} Setting property 'source' to 'org.eclipse.jst.jee.server:connect_afs_ui' did not find a matching property.
Dec 24, 2015 6:36:59 PM org.apache.catalina.core.ContainerBase addChildInternal
SEVERE: ContainerBase.addChild: start: 
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/connect_afs_ui]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    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:714)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:581)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1683)
    at java.util.concurrent.Executors$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: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.StandardRoot@146cf9f]
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:139)
    at org.apache.catalina.core.StandardContext.resourcesStart(StandardContext.java:4832)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4962)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 10 more
Caused by: org.apache.catalina.LifecycleException: Failed to initialize component [org.apache.catalina.webresources.DirResourceSet@1679622]
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
    at org.apache.catalina.webresources.StandardRoot.initInternal(StandardRoot.java:657)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
    ... 14 more
Caused by: java.lang.IllegalArgumentException: The directory specified by base and internal path [C:\Users\ravi.suthar\git\FashionConnect\connect_afs_ui\target\test-classes]\[] does not exist.
    at org.apache.catalina.webresources.DirResourceSet.checkType(DirResourceSet.java:247)
    at org.apache.catalina.webresources.AbstractFileResourceSet.initInternal(AbstractFileResourceSet.java:134)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
    ... 16 more

Dec 24, 2015 6:36:59 PM org.apache.catalina.startup.HostConfig deployDescriptor
SEVERE: Error deploying configuration descriptor E:\PROJECTS\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\conf\Catalina\localhost\connect_afs_ui.xml
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/connect_afs_ui]]
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:728)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:581)
    at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1683)
    at java.util.concurrent.Executors$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)

Dec 24, 2015 6:36:59 PM org.apache.catalina.startup.HostConfig deployDescriptor
INFO: Deployment of configuration descriptor E:\PROJECTS\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\conf\Catalina\localhost\connect_afs_ui.xml has finished in 18 ms
Dec 24, 2015 6:36:59 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-8080"]
Dec 24, 2015 6:36:59 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-nio-8009"]
Dec 24, 2015 6:36:59 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 303 ms

Answer 1

我执行了以下步骤并删除了错误。

1. Delete existing tomcat from the eclipse Server tab and remove existing tomcat directory
2. Provide new copy of tomcat in Server tab > add new server
3. Double click on tomcat from server tab
4. In tomcat overview tab, in Server Option 
    a. unselect > Select modules without publishing
    b. unselect > Publish modules contexts to separate XML files
5. Save tomcat changes
6. Add project to tomcat
7. Publish 
8. Start / Debug    

Answer 2

我也面临同样的例外。就我而言，问题是，WEB-INF 下的 lib 文件夹被我错误地删除了，我开始将自定义 jar 放在项目主文件夹中，并从那里在构建路径中引用。

花了很多时间后，我意识到了这个错误，只是更正了目录结构，并在 WEB-INF 下创建了 lib 文件夹，并将自定义 jar 放入其中并从那里引用。它开始起作用了。

Answer 3

请检查同一个 .java 文件是否存在于另一个包中，如果存在则删除该 .java 文件以解决此类型问题。 (Eclipse IDE)