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@@ -0,0 +1,169 @@
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+package com.java110.boot.websocket;
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+
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+import com.alibaba.fastjson.JSONObject;
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+import com.java110.core.log.LoggerFactory;
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+import com.java110.dto.WsDataDto;
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+import com.java110.utils.util.StringUtil;
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+import com.java110.vo.ResultVo;
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+import org.slf4j.Logger;
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+import org.springframework.stereotype.Component;
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+
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+import javax.websocket.*;
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+import javax.websocket.server.PathParam;
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+import javax.websocket.server.ServerEndpoint;
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+import java.io.IOException;
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+import java.util.concurrent.ConcurrentHashMap;
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+
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+/**
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+ * @ClassName 停车场 ws
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+ * @Description TODO
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+ * @Author wuxw
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+ * @Date 2020/5/25 12:13
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+ * @Version 1.0
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+ * add by wuxw 2020/5/25
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+ **/
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+@ServerEndpoint("/ws/parkingBox/{boxId}/{clientId}")
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+@Component
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+public class ParkingBoxWebsocket {
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+
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+ private static Logger logger = LoggerFactory.getLogger(ParkingBoxWebsocket.class);
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+
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+ /**
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+ * 静态变量，用来记录当前在线连接数。应该把它设计成线程安全的。
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+ */
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+ private static int onlineCount = 0;
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+ /**
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+ * concurrent包的线程安全Set，用来存放每个客户端对应的MyWebSocket对象。
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+ */
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+ private static ConcurrentHashMap<String, ParkingBoxWebsocket> webSocketMap = new ConcurrentHashMap<>();
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+
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+ /**
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+ * concurrent包的线程安全Set，用来存放每个客户端对应的MyWebSocket对象。
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+ */
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+ private static ConcurrentHashMap<String, String> clientMachineMap = new ConcurrentHashMap<>();
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+ /**
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+ * 与某个客户端的连接会话，需要通过它来给客户端发送数据
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+ */
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+ private Session session;
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+ /**
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+ * 接收clientId
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+ */
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+ private String clientId = "";
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+
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+ private String boxId = "";
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+
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+ /**
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+ * 连接建立成功调用的方法
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+ */
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+ @OnOpen
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+ public void onOpen(Session session, @PathParam("clientId") String clientId, @PathParam("boxId") String boxId) {
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+ this.session = session;
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+ this.clientId = clientId;
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+ this.boxId = boxId;
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+ if (webSocketMap.containsKey(clientId)) {
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+ webSocketMap.remove(clientId);
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+ webSocketMap.put(clientId, this);
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+ //加入set中
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+ } else {
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+ webSocketMap.put(clientId, this);
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+ //加入set中
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+ addOnlineCount();
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+ //在线数加1
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+ }
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+
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+
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+ logger.debug("用户连接:" + clientId + ",当前在线人数为:" + getOnlineCount());
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+
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+ try {
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+ sendMessage("连接成功");
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+ } catch (IOException e) {
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+ logger.error("用户:" + clientId + ",网络异常!!!!!!");
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+ }
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+ }
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+
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+ /**
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+ * 连接关闭调用的方法
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+ */
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+ @OnClose
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+ public void onClose() {
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+ if (webSocketMap.containsKey(clientId)) {
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+ webSocketMap.remove(clientId);
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+ //从set中删除
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+ subOnlineCount();
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+ }
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+ logger.info("用户退出:" + clientId + ",当前在线人数为:" + getOnlineCount());
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+ }
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+
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+ /**
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+ * 收到客户端消息后调用的方法
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+ *
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+ * @param message 客户端发送过来的消息
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+ */
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+ @OnMessage
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+ public void onMessage(String message, Session session) throws Exception {
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+ logger.info("用户消息:" + boxId + ",客户端：" + clientId + ",报文:" + message);
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+ //可以群发消息
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+ //消息保存到数据库、redis
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+ if (StringUtil.isEmpty(message)) {
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+ ResultVo resultVo = new ResultVo(ResultVo.CODE_ERROR, "未包含内容");
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+ webSocketMap.get(clientId).sendMessage(resultVo.toString());
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+ return;
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+ }
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+
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+ if (!StringUtil.isJsonObject(message)) {
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+ ResultVo resultVo = new ResultVo(ResultVo.CODE_ERROR, "不是有效数据格式");
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+ webSocketMap.get(clientId).sendMessage(resultVo.toString());
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+ return;
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+ }
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+
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+ WsDataDto wsDataDto = JSONObject.parseObject(message, WsDataDto.class);
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+
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+ switch (wsDataDto.getCmd()) {
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+ case WsDataDto.CMD_PING:
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+ //webSocketMap.get(userId).sendMessage(wsDataDto.toString());
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+ break;
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+ }
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+ }
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+
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+ /**
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+ * @param session
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+ * @param error
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+ */
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+ @OnError
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+ public void onError(Session session, Throwable error) {
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+ logger.error("用户错误:" + this.clientId + ",原因:" + error.getMessage());
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+ error.printStackTrace();
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+ }
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+
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+ /**
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+ * 实现服务器主动推送
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+ */
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+ public void sendMessage(String message) throws IOException {
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+ this.session.getBasicRemote().sendText(message);
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+ }
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+
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+
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+ /**
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+ * 发送设备监控信息
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+ */
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+ public static void sendInfo(String message, String boxId) throws IOException {
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+ logger.info("发送消息到:" + boxId + "，报文:" + message);
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+ for (ParkingBoxWebsocket server : webSocketMap.values()) {
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+ if (boxId.equals(server.boxId)) {
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+ webSocketMap.get(server.clientId).sendMessage(message);
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+ }
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+ }
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+ }
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+
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+ public static synchronized int getOnlineCount() {
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+ return onlineCount;
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+ }
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+
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+ public static synchronized void addOnlineCount() {
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+ ParkingBoxWebsocket.onlineCount++;
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+ }
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+
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+ public static synchronized void subOnlineCount() {
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+ ParkingBoxWebsocket.onlineCount--;
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+ }
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+}
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wuxw