Springboot整合Servlet

1，方式一

　　【1】通过注解扫描完成Servlet组件的注册

@WebServlet(name = "firstServlet",urlPatterns = "/first")
public class firstServlet extends HttpServlet {


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

　　【2】修改启动类

@SpringBootApplication
@ServletComponentScan//在Spring Boot启动时会扫描@WebServlet注解，并将该类实例
public class SpringbootwebApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootwebApplication.class, args);
    }

}

2，方法二

　　　　【1】通过方法完成Servlet组件的注册

public class SecondServlet extends HttpServlet {

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

　　　　【2】创建Servlet配置类

@Configuration
public class ServletConfig {

    @Bean
    public ServletRegistrationBean getServletRegistrationBean()
    {
        ServletRegistrationBean bean = new ServletRegistrationBean(new SecondServlet());
        bean.addUrlMappings("/second");
        return bean;
    };
}