Undertow 是红帽公司（RedHat）的开源产品，是 WildFly8（JBoos） 默认的 Web 服务器。

Undertow is a flexible performant web server written in java, 
providing both blocking and non-blocking API’s based on NIO.

高性能Web服务器，提供阻塞和非阻塞API。

轻量级，核心jar包不到1Mb

支持嵌入应用运行

undertow-core.jar undertow-servlet.jar

https://github.com/undertow-io/undertow/releases


io.undertow:undertow-core:2.0.18.Final


import java.util.Date;

import io.undertow.Undertow;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.Headers;

public class Hello {

	public static void main(final String[] args) {
		Undertow server = Undertow.builder()
		.addHttpListener(8050, "localhost")
		.setHandler(new HttpHandler() {			
			@Override
			public void handleRequest(final HttpServerExchange exchange) throws Exception {
				exchange.getResponseHeaders().put(Headers.CONTENT_TYPE, "text/plain");
				exchange.getResponseSender().send("hello,"+new Date());
			}
		}).build();
		server.start();
	}

}


完整例子工程
https://gitee.com/dyyx/hellocode/tree/master/project/undertow