java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1713)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
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.StandardContext.reload(StandardContext.java:3926)
at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:426)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1345)
at org.apache.catalina.core.ContainerBase\(ContainerBackgroundProcessor.processChildren(ContainerBase.java:1530) at org.apache.catalina.core.ContainerBase\)ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
at org.apache.catalina.core.ContainerBase\(ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540) at org.apache.catalina.core.ContainerBase\)ContainerBackgroundProcessor.run(ContainerBase.java:1519)
at java.lang.Thread.run(Thread.java:745)
二月 22, 2016 1:28:59 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.WebappClassLoader.loadClass(WebappClassLoader.java:1713)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1558)
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.StandardContext.reload(StandardContext.java:3926)
at org.apache.catalina.loader.WebappLoader.backgroundProcess(WebappLoader.java:426)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1345)
at org.apache.catalina.core.ContainerBase\(ContainerBackgroundProcessor.processChildren(ContainerBase.java:1530) at org.apache.catalina.core.ContainerBase\)ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540)
at org.apache.catalina.core.ContainerBase\(ContainerBackgroundProcessor.processChildren(ContainerBase.java:1540) at org.apache.catalina.core.ContainerBase\)ContainerBackgroundProcessor.run(ContainerBase.java:1519)
at java.lang.Thread.run(Thread.java:745)
項目為Maven項目，相關的依賴包也已經下載到本地，但是啟動tomcat時報錯找不到ContextLoaderListener和IntrospectorCleanupListener，后來在網上搜索答案發現工程部署后沒有把依賴jar包都部署到在WEB-INF文件夾的lib目錄。
解決方案：
1.右鍵點擊項目選擇Properties
選擇Deployment Assembly,在右邊點擊Add按鈕，在彈出的窗口中選擇Java Build Path Entries，.點擊Next，選擇Maven Dependencies：
重新啟動tomcat，錯誤消失。