自动注解@WebServlet详细说明

/*
 * @WebServlet自动注解：相当于在web.xml文件中配置了servlet
 */
@WebServlet("/servletDemo1")
public class ServletDemo1 extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //
        System.out.println("haha");
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doGet(req, resp);
    }

}