Spring Boot启用 就像在web.xml中

您只需要定义

dispatcherServlet

@Bean

@Beanpublic ServletRegistrationBean dispatcherServlet() {    ServletRegistrationBean registration = new ServletRegistrationBean( new DispatcherServlet(), "/");    registration.setAsyncSupported(true);    return registration;}

它会覆盖的默认值

DispatcherServletAutoConfiguration