<servlet><servlet-name>websocket</servlet-name><servlet-class>org.ldd.ssm.hangyu.socket.MyWebSocketServlet</servlet-class></servlet><servlet-mapping><servlet-name>websocket</servlet-name><url-pattern>/socket</url-pattern></servlet-mapping>

@SpringBootApplication
@MapperScan("org.ldd.ssm.hangyu.mapper")//@ServletComponentScan
public class MyspringbootApplication extends SpringBootServletInitializer{public static ApplicationContext cs;    @Beanpublic ServletRegistrationBean servletRegistrationBean() {return new ServletRegistrationBean(new MyWebSocketServlet(), "/socket");}@Overrideprotected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {return builder.sources(MyspringbootApplication.class);}public static void main(String[] args) {cs=SpringApplication.run(MyspringbootApplication.class, args);}
}

@SuppressWarnings("deprecation")@WebServlet(name="myWebSocketServlet",urlPatterns="/socket") public class MyWebSocketServlet extends WebSocketServlet {

　　private static final long serialVersionUID = -6488889268352650321L;protected StreamInbound createWebSocketInbound(String name,HttpServletRequest request) {String parameter = request.getParameter("name");return new MyMessageInbound(parameter);}
}

    <servlet><servlet-name>initServlet</servlet-name><servlet-class>org.ldd.ssm.hangyu.socket.InitServlet</servlet-class><load-on-startup>1</load-on-startup></servlet>

import org.springframework.boot.CommandLineRunner;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;  @Component
@Order(value=1)//代表启动时加载的顺序
public class MyStartupRunner implements CommandLineRunner
{  InitServlet initServlet=new InitServlet();@Override  public void run(String... args) throws Exception{initServlet.init(initServlet.getServletConfig());}
}