Tomcat啓動時報org.springframework.web.context.ContextLoaderListener錯誤解決方案

問題現象：

maven+spring+springmvc項目在Tomcat啓動時，報如下錯誤。

嚴重: Error configuring application listener of class org.springframework.web.context.ContextLoaderListener
java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1275)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1109)
	at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:520)
	at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:501)
	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4639)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
	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)

十一月 21, 2016 2:28:44 下午 org.apache.catalina.core.StandardContext listenerStart
嚴重: Error configuring application listener of class org.springframework.web.util.IntrospectorCleanupListener
java.lang.ClassNotFoundException: org.springframework.web.util.IntrospectorCleanupListener
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1275)
	at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1109)
	at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:520)
	at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:501)
	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4639)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1403)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1393)
	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)

十一月 21, 2016 2:28:44 下午 org.apache.catalina.core.StandardContext listenerStart
嚴重: Skipped installing application listeners due to previous error(s)
十一月 21, 2016 2:28:44 下午 org.apache.catalina.core.StandardContext startInternal
嚴重: One or more listeners failed to start. Full details will be found in the appropriate container log file
十一月 21, 2016 2:28:44 下午 org.apache.catalina.core.StandardContext startInternal
嚴重: Context [/app] startup failed due to previous errors
十一月 21, 2016 2:28:44 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler [http-nio-8080]
十一月 21, 2016 2:28:44 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler [ajp-nio-8009]
十一月 21, 2016 2:28:44 下午 org.apache.catalina.startup.Catalina start
信息: Server startup in 295 ms

原因分析：

Tomcat在發佈項目的時候,沒有同時發佈maven依賴的Jar包，需要手動設置一下Eclipse,將Maven依賴添加到項目中去，這樣在Tomcat啓動的時候就會自動把這些需要的Jar包發到指定路徑下

解決方案：

項目 -> 屬性 -> Deployment Assembly -> Add -> Java Build Path Entries -> 選擇Maven Dependencies -> Finish -> OK