**1. 继承HttpServlet** ```java public class CustomServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doPost(req, resp); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { resp.getWriter().println("MyServlet -> Hello MyServlet!"); } } ``` **2. 注册Servlet** ```java @Configuration public class CustomServerConfig{ @Bean public ServletRegistrationBean servletRegistrationBean() { ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new CustomServlet(), "/myServlet"); return servletRegistrationBean; } } ``` **3. 测试，访问 http://localhost:8080/myServlet ，界面将看到如下信息** （1）启动项目后将在控制台打印如下信息。 ``` MyServlet -> Hello MyServlet! ```