最近部署ssm项目在tomcat,tomcat启动的时候发出org.springframework.web.context.ContextLoaderListener 错误

严重: 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:1892)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:495)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:477)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:113)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5026)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5633)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:1009)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:985)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1296)
    at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2038)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    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:744)

在确认了spring各种配置都正确的情况下,发生这种错误很有可能是 jar 没有在 WEB-INF/lib 目录下

我的解决办法是,手动添加 jar 在 WEB-INF/lib 下即可。

在eclipse或者myeclipse中,右键项目,点击Properties,输入D

点击Deployment Assembly ,仔细看看是不是发现 WEB-INF 目录少了点什么东西?

没错!就是少了jar包。

那么点击 add ,选择Java Build Path Entries

继续选择 Maven Dependencies,选择Finish即可。