关于Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/springmvc-demo-01-start]]出错的解决方法

出错的详情：

严重: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/springmvc-demo-01-start]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1423)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1413)
    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)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/springmvc-demo-01-start]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
    ... 6 more
Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> [/*.do] in servlet mapping
    at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3222)
    at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3209)
    at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1376)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1156)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:769)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5181)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 6 more

解决方案：

将web.xml中的   /*.do  修改为  *.do

<!-- 配置核心控制器 -->
  <servlet>
      <servlet-name>dispatcherServlet</servlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      <!-- 指定配置文件的路径 -->
      <init-param>
          <!-- 注意：任何框架的参数名都可以在代码里面找到 -->
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath:spring-mvc.xml</param-value>
      </init-param>
  </servlet>
  <servlet-mapping>
      <servlet-name>dispatcherServlet</servlet-name>
      <url-pattern>/*.do</url-pattern>  修改为   <url-pattern>*.do</url-pattern>

 </servlet-mapping>