之前使用做项目使用到实时推送的技术,websocket需要ie9,tomcat7,jdk7以上,兼容性不够好,因此转而使用了netty-socketio,在git上的项目地址。使用maven添加netty的jar包
<dependency> <groupId>com.corundumstudio.socketio</groupId> <artifactId>netty-socketio</artifactId> <version>1.7.7</version></dependency>
客户端使用socket.io,首先启动server,推送消息时服务端获取客户端,向客户端发送消息。客户端接收消息后刷新页面数据。
import com.corundumstudio.socketio.Configuration;import com.corundumstudio.socketio.SocketIOClient;import com.corundumstudio.socketio.SocketIOServer;import com.corundumstudio.socketio.listener.ConnectListener;import com.yinhai.jiankong.util.MonitorConfigUtil;import org.springframework.stereotype.Service;import java.util.Collection;import java.util.HashMap;import java.util.List;import java.util.Map;/** * Created by Administrator on 2017/5/18. */@Service("socketIoService")public class SocketIoService { static SocketIOServer server; static Map<String,SocketIOClient> clientsMap = new HashMap<String, SocketIOClient>(); public void startServer()throws InterruptedException{ Configuration config = new Configuration(); String hostName = MonitorConfigUtil.getProperties("socketHostName"); config.setHostname(hostName); int socketPort = Integer.parseInt(MonitorConfigUtil.getProperties("socketPort")); config.setPort(socketPort); config.setMaxFramePayloadLength(1024 * 1024); config.setMaxHttpContentLength(1024 * 1024); server = new SocketIOServer(config); server.addConnectListener(new ConnectListener() { @Override public void onConnect(SocketIOClient client) { String sa = client.getRemoteAddress().toString(); String clientIp = sa.substring(1,sa.indexOf(":")); Map params = client.getHandshakeData().getUrlParams(); Object object = params.get("uuid"); String uuid = ""; if(object != null){ uuid = ((List<String>)object).get(0); clientsMap.put(uuid,client); } client.sendEvent("connect_msg",clientIp+"客户端你好,我是服务端,能帮助你吗?"); } }); server.start(); Thread.sleep(Integer.MAX_VALUE); server.stop(); } /** * 给所有连接客户端推送消息 * @param eventType 推送的事件类型 * @param message 推送的内容 */ public void sendMessageToAllClient(String eventType,String message){ Collection<SocketIOClient> clients = server.getAllClients(); for(SocketIOClient client: clients){ client.sendEvent(eventType,message); } } /** * 停止服务 */ public void stopServer(){ if(server != null){ server.stop(); server = null; } } public static SocketIOServer getServer() { return server; }}
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客户端启动服务
var socketUrl = "<%=path%>/startServer.do"; $.ajax({ url:socketUrl, type:'get', success:function(){ } })
@RequestMapping(value = "startServer.do") public void startServer(HttpServletResponse response) { response.setHeader("Access-Control-Allow-Credentials", "true"); response.setHeader("Access-Control-Allow-Origin", "*"); try { if (serviceIo.getServer() == null) { new Thread(new Runnable() { @Override public void run() { try { serviceIo.startServer(); } catch (InterruptedException e) { logger.error(e); } } }).start(); } } catch (Exception e) { logger.error(e); } }
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服务端推送数据
serviceIo.sendMessageToAllClient("advert_data", JSonFactory.bean2json(data));
客户端接收推送数据,socket.io.js在git上可下载
<script type="text/javascript" src="<%=basePath%>/resources/js/socketio/socket.io.js"></script>var socket = io.connect('http://192.168.31.141:9092');socket.on('advert_data',function(data){ var personInfo = JSON.parse(data); console.log(personInfo);});