[RMI TCP Connection(2)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method [manageApp]

在使用注解的时候，务必要注意代码的规范，细节

@WebServlet(name = "studyVideoServlet",urlPatterns = "video")
public class StudyVideoServlet extends BaseServlet {

@WebServlet(name = "studyVideoServlet",urlPatterns = "/video")
public class StudyVideoServlet extends BaseServlet {

urlPatterns中的斜线的重要性，写代码务必要细心，细心，再细心