Tomcat服务器可以启动但是javaweb项目无法启动可能存在的原因

java web 项目启动时服务器时报下面的错可能出现的原因是有重复的url，××××servlet.java里的注解“××××.do”存在多个，在不同的servlet.java文件里存在相同的url

七月 24, 2017 12:16:28 下午 org.apache.tomcat.util.digester.SetPropertiesRule begin

警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:taxSource' did not find a matching property.

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Server version:        Apache Tomcat/8.5.15

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Server built:          May 5 2017 11:03:04 UTC

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Server number:         8.5.15.0

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: OS Name:               Windows 10

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: OS Version:            10.0

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Architecture:          amd64

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Java Home:             C:\Program Files\Java\jre1.8.0_131

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: JVM Version:           1.8.0_131-b11

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: JVM Vendor:            Oracle Corporation

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: CATALINA_BASE:         F:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: CATALINA_HOME:         E:\apache-tomcat-8.5.15

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Command line argument: -Dcatalina.base=F:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Command line argument: -Dcatalina.home=E:\apache-tomcat-8.5.15

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Command line argument: -Dwtp.deploy=F:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Command line argument: -Djava.endorsed.dirs=E:\apache-tomcat-8.5.15\endorsed

七月 24, 2017 12:16:28 下午 org.apache.catalina.startup.VersionLoggerListener log

信息: Command line argument: -Dfile.encoding=GBK

七月 24, 2017 12:16:28 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent

信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jre1.8.0_131\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_131/bin/server;C:/Program
Files/Java/jre1.8.0_131/bin;C:/Program Files/Java/jre1.8.0_131/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\Java\jdk1.8.0_121\bin;C:\Program Files\Java\jdk1.8.0_121\jre\bin;C:\Program
Files\Java\jdk1.8.0_121\bin;C:\Python3.5\Scripts;C:\Program Files\MySQL\MySQL Server 5.5\bin;C:\Python3.5\Scripts\;C:\Python3.5\;C:\Users\Administrator\AppData\Local\Microsoft\WindowsApps;;C:\Users\Administrator\Desktop;;.]

七月 24, 2017 12:16:28 下午 org.apache.coyote.AbstractProtocol init

信息: Initializing ProtocolHandler ["http-nio-8080"]

七月 24, 2017 12:16:29 下午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector

信息: Using a shared selector for servlet write/read

七月 24, 2017 12:16:29 下午 org.apache.coyote.AbstractProtocol init

信息: Initializing ProtocolHandler ["ajp-nio-8009"]

七月 24, 2017 12:16:29 下午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector

信息: Using a shared selector for servlet write/read

七月 24, 2017 12:16:29 下午 org.apache.catalina.startup.Catalina load

信息: Initialization processed in 1674 ms

七月 24, 2017 12:16:29 下午 org.apache.catalina.core.StandardService startInternal

信息: Starting service [Catalina]

七月 24, 2017 12:16:29 下午 org.apache.catalina.core.StandardEngine startInternal

信息: Starting Servlet Engine: Apache Tomcat/8.5.15

七月 24, 2017 12:16:29 下午 org.apache.catalina.core.ContainerBase startInternal

严重: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/taxSource]]

    at java.util.concurrent.FutureTask.report(Unknown Source)

    at java.util.concurrent.FutureTask.get(Unknown Source)

    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:939)

    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872)

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

    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)

    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)

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

    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)

    ... 6 more

Caused by: java.lang.IllegalArgumentException: The servlets named [com.zhidisoft.manage.source.servlet.ToSearchTaskServlets] and [com.zhidisoft.manage.task.servlet.ToSearchTaskServlet] are both mapped to the url-pattern [/toSearchTaskServlet.do] which is not
permitted

    at org.apache.tomcat.util.descriptor.web.WebXml.addServletMappingDecoded(WebXml.java:325)

    at org.apache.tomcat.util.descriptor.web.WebXml.addServletMapping(WebXml.java:318)

    at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2389)

    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2066)

    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1952)

    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1946)

    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1946)

    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1946)

    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1946)

    at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1946)

    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1153)

    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:775)

    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)

    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)

    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5105)

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

    ... 6 more

七月 24, 2017 12:16:29 下午 org.apache.catalina.core.ContainerBase startInternal

严重: A child container failed during start

java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]

    at java.util.concurrent.FutureTask.report(Unknown Source)

    at java.util.concurrent.FutureTask.get(Unknown Source)

    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:939)

    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)

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

    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)

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

    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793)

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

    at org.apache.catalina.startup.Catalina.start(Catalina.java:656)

    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.start(Bootstrap.java:355)

    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:495)

Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]

    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)

    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)

    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)

    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: org.apache.catalina.LifecycleException: A child container failed during start

    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:947)

    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872)

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

    ... 6 more

七月 24, 2017 12:16:29 下午 org.apache.catalina.startup.Catalina start

严重: The required Server component failed to start so Tomcat is unable to start.

org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]

    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)

    at org.apache.catalina.startup.Catalina.start(Catalina.java:656)

    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.start(Bootstrap.java:355)

    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:495)

Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]

    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)

    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793)

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

    ... 7 more

Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]]

    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)

    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)

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

    ... 9 more

Caused by: org.apache.catalina.LifecycleException: A child container failed during start

    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:947)

    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)

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

    ... 11 more

七月 24, 2017 12:16:29 下午 org.apache.coyote.AbstractProtocol pause

信息: Pausing ProtocolHandler ["http-nio-8080"]

七月 24, 2017 12:16:29 下午 org.apache.coyote.AbstractProtocol pause

信息: Pausing ProtocolHandler ["ajp-nio-8009"]

七月 24, 2017 12:16:29 下午 org.apache.catalina.core.StandardService stopInternal

信息: Stopping service [Catalina]

七月 24, 2017 12:16:29 下午 org.apache.coyote.AbstractProtocol destroy

信息: Destroying ProtocolHandler ["http-nio-8080"]

七月 24, 2017 12:16:29 下午 org.apache.coyote.AbstractProtocol destroy

信息: Destroying ProtocolHandler ["ajp-nio-8009"]