Error configuring application listener of class org.springframework.web.context.ContextLoaderListene 标签： tomcat

今天敲完ssm框架，启动tomcat时报了这个错误。如图：

SEVERE: Error configuring application listener of class org.springframework.web.context.ContextLoaderListener

java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)

at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)

at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)

at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)

at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4823)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381)

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

at org.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1559)atorg.apache.catalina.core.ContainerBaseStartChild.call(ContainerBase.java:1549)

at java.util.concurrent.FutureTaskSync.innerRun(FutureTask.java:334)atjava.util.concurrent.FutureTask.run(FutureTask.java:166)atjava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)atjava.util.concurrent.ThreadPoolExecutorWorker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:722)

Mar 25, 2017 9:30:56 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class org.springframework.web.util.IntrospectorCleanupListener
java.lang.ClassNotFoundException: org.springframework.web.util.IntrospectorCleanupListener
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4823)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5381)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    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)

Mar 25, 2017 9:30:56 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Skipped installing application listeners due to previous error(s)
Mar 25, 2017 9:30:56 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
Mar 25, 2017 9:30:56 PM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [/ssm] startup failed due to previous errors
Mar 25, 2017 9:30:56 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Mar 25, 2017 9:30:56 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Mar 25, 2017 9:30:56 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1677 ms

这个错误看上去是找不到jar包引起的，但是检查完jar包的引用之后，发现spring-web的jar包是已经引用了的，如果是这种情况的话，解决方法就是将所引用的所有jar包拷贝一份到发布路径的WEB-INF/lib文件夹下。

注意

需要注意的是，eclipse配置完tomcat之后，如果我们不做修改的话，tomcat默认是发布到.metadata\plugins\目录下的wtpwebapps。这个目录在我们的项目目录下。如果想要更改到tomcat的发布目录下的话，我们可以重新添加一个server，选择tomcat，但是不要add任何项目，然后双击tomcat，在这个界面上进行修改：

修改后如图

总结

jar包找不到有可能是因为发布的时候tomcat没有自动将jar包拷贝过去，此时就需要我们手动拷贝一下。

PS：新方法

最近发现了解决这个问题的新方法，在项目上右击-》properties->Deployment Assembly，接下来如图：



然后下一步下一步直到finish，这样，就可以将maven下的jar包发布到发布文件夹下了。