严重: web应用程序[/chapter12]中的Servlet[springmvc]引发了load（）异常 java.lang.ClassNotFoundException: org.springframwork.web.servlet.DispatcherServlet at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1407) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1215) at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:534) at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:515) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:149) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1070) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1010) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4957) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5264) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:835) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1396) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1386) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:919) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:263) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:432) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:927) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Catalina.start(Catalina.java:772) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:345) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:476)

根据提供的错误信息来看，出现了“java.lang.ClassNotFoundException: org.springframwork.web.servlet.DispatcherServlet”的异常，这意味着应用程序无法找到名为“org.springframwork.web.servlet.DispatcherServlet”的类文件。

这个问题可能是由于缺失相关的jar包或配置文件不正确导致的。首先，请确保您的应用程序中包含了相应的jar包，可以尝试在应用程序的WEB-INF/lib目录中添加spring-webmvc的jar包。

如果jar包已经正确添加到应用程序中，请检查web.xml配置文件，确保DispatcherServlet的配置正确。可以检查DispatcherServlet的servlet-class节点是否正确配置，确保它指向正确的类文件路径。

如果上述步骤都没有解决问题，可以检查应用程序部署的环境是否正确，例如是否正确配置了应用服务器的classpath等。

希望这些提示能够帮助您解决问题。