75.15 Enable Multiple Listeners with Undertow

75.15 启用Undertow的多监听器

将UndertowBuilderCustomizer添加到UndertowServletWebServerFactory，然后使用Builder添加一个listener：

@Bean
public UndertowServletWebServerFactory servletWebServerFactory() {
    UndertowServletWebServerFactory factory = new UndertowServletWebServerFactory();
    factory.addBuilderCustomizers(new UndertowBuilderCustomizer() {

        @Override
        public void customize(Builder builder) {
            builder.addHttpListener(8080, "0.0.0.0");
        }

    });
    return factory;
}