org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]

   Tomcat启动项目报下面错误:

org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]

    这个错误的原因,最终追溯发现是因为Maven中jar没有被添加到编译后的文件中导致的。那么怎么解决呢?

   对着项目右击,选中Properties、

org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]  org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]

然后:

org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]

在下一步:

org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]

我们把这个添加进去:

org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]

   点击Apply、ok然后就可以正常运行了。