@Configuration
public class TomcatConfiguration implements EmbeddedServletContainerCustomizer {

	int ports[] = { 8080, 8081, 8082 };

	@Override
	public void customize(ConfigurableEmbeddedServletContainer configurableEmbeddedServletContainer) {

		if (ports != null) {
			// 判断如果是Tomcat才进行如下配置
			if (configurableEmbeddedServletContainer instanceof TomcatEmbeddedServletContainerFactory) {

				TomcatEmbeddedServletContainerFactory tomcat = (TomcatEmbeddedServletContainerFactory) configurableEmbeddedServletContainer;

				for (int port : ports) {
					// 一个Connecter监听一个端口,指定协议为HTTP/1.1
					Connector httpConnector = new Connector("HTTP/1.1");
					httpConnector.setPort(port);
					tomcat.addAdditionalTomcatConnectors(httpConnector);
				}

			}
		}
	}
}