ClassNotFoundException: org.springframework.web.context.ContextLoaderListener解决

在搭建的时候，运行Tomcat就如下错误。
错误描述：
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:5034)
 at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5634)
 at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
 at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1571)
 at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1561)
 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)
解决方案：
1、打开工程属性对话框，如下图：

 2. Go to the Deployment Assembly page, click Add, and select Jave Build Path Entries, as shown in the figure below:

 3. Add the Library used by the program, as shown in the figure below:

 The final picture is as follows:

 4. Re-run the Server to see if the problem is solved.