学步园

下载

最新的下载的地址已经移动到eclipse上：http://www.eclipse.org/jetty/downloads.php

目前的版本为9.0.0.M3

JDK版本要求7

所需要的类库

下载下来后，JETTY带了非常多的类库，经过测试发现，最简答的例子仅仅需要

javax.websocket-api-0.0.006.draft.jar
jetty-http-9.0.0.M3.jar
jetty-io-9.0.0.M3.jar
jetty-security-9.0.0.M3.jar
jetty-server-9.0.0.M3.jar
jetty-servlet-9.0.0.M3.jar
jetty-util-9.0.0.M3.jar
servlet-api-3.0.jar
websocket-api-9.0.0.M3.jar
websocket-common-9.0.0.M3.jar
websocket-server-9.0.0.M3.jar
websocket-servlet-9.0.0.M3.jar

创建最简单的WEB服务

建立Eclipse后，先建立一个启动类

Server server = new Server(8080);
try {
	server.start();
	server.join();
} catch (Exception e) {

	e.printStackTrace();
}

这样一个最简单对外提供WEB服务，默认都返回404

创建一个WebSocketServlet

	@Override
	public void onWebSocketConnect(WebSocketConnection connection) {
		this.outbound = connection;
		try {
			outbound.write("ok");
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

		Server server = new Server(8080);
		try {
			HandlerList handlerList = new HandlerList();
			ServletContextHandler context = new ServletContextHandler(
					ServletContextHandler.SESSIONS);
			context.setContextPath("/");
			context.addServlet(new ServletHolder(new MonitorStatusServlet()),
					"/monitor");
			context.addServlet(new ServletHolder(new MyEchoServlet()), "/echo");
			handlerList.addHandler(context);
			handlerList.addHandler(new DefaultHandler());
			server.setHandler(handlerList);

			server.start();
			server.join();
		} catch (Exception e) {

			e.printStackTrace();
		}

	}

其中MonitorStatusServlet是返回当前的状态，DefualtHandler用于实现其它任何请求都返回FORBIDDEN

/echo则调用WebSocket

编写客户端测试

<script type="text/javascript">
	var url = "ws://192.168.1.200:8080/echo";
	
	
	if(window.MozWebSocket) {
		this.connection = new MozWebSocket(url);
	} else {
		this.connection = new WebSocket(url);
	}

	 this.connection.onmessage = function(e) {
		alert(e.data);
	};

	this.connection.onopen = function(e) {
		this.connection.send("123456");
	};

	


            
</script>