404 The origin server did not find a current representation for the target resource or is not

如果出现404 错误,并且有以下信息

Type Status Report

Message /book1/registServlet

Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.

那可能是在类名注解的属性写成name了,把name改成value就可以了.

@WebServlet(name = "/registServlet")
public class RegistServlet extends HttpServlet {