java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet

1、启动项目报如下所示错误：

java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1335)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1163)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:542)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:523)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:150)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1091)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1027)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5037)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5347)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

如下图所示错误：

解决方法如下所示：

自己的项目上右键properties，Deployment Assembly -> Add -> Java Build Path Entries -> Next -> Maven Dependencies -> Finish -> Apply -> Apply and Close，配置完后如下图：

 

 

 再次启动你的项目就可以了。