public class ApiServlet extends HttpServlet {
    @Override
    public void init(ServletConfig config) throws ServletException {

    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)

    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    }
}

    @Bean
    public ServletRegistrationBean servletRegistrationBean(){
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean();
        servletRegistrationBean.setName("ApiServlet");
        servletRegistrationBean.setServlet(new ApiServlet());
        servletRegistrationBean.addUrlMappings("/api/servlet/*");
        servletRegistrationBean.addInitParameter("initParam1","initValue1");
        servletRegistrationBean.setAsyncSupported(true);
        return  servletRegistrationBean;
    }

@ServletComponentScan(basePackages = "com.github.evan.springboot.web.servlet.annotation")

@WebServlet(name = "AnnoServlet", urlPatterns = "/annotaion/servlet/*",
        initParams = {
             @WebInitParam(name = "initParam1", value = "initValue1"),
             @WebInitParam(name = "initParam2", value = "initValue2")
            }
)
public class AnnoServlet extends HttpServlet {
    @Override
    public void init(ServletConfig config) throws ServletException {
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    }
}