From 35495ee5392c705604b5a07242451f00db287a34 Mon Sep 17 00:00:00 2001
From: liusuyi <1951119284@qq.com>
Date: Tue, 09 Dec 2025 11:42:37 +0800
Subject: [PATCH] 优化

---
 ard-work/src/main/java/com/ard/work/component/websocket/handler/TyMessageHandler.java |   59 +++++++++++++++++++++++++++++++++++++++++++----------------
 1 files changed, 43 insertions(+), 16 deletions(-)

diff --git a/ard-work/src/main/java/com/ard/work/component/websocket/handler/TyMessageHandler.java b/ard-work/src/main/java/com/ard/work/component/websocket/handler/TyMessageHandler.java
index 9807872..2d376d4 100644
--- a/ard-work/src/main/java/com/ard/work/component/websocket/handler/TyMessageHandler.java
+++ b/ard-work/src/main/java/com/ard/work/component/websocket/handler/TyMessageHandler.java
@@ -5,6 +5,7 @@
 import com.ard.common.core.domain.model.LoginUser;
 import com.ard.framework.web.service.TokenService;
 import com.ard.work.component.websocket.WebSocketSessionManager;
+import com.ard.work.component.websocket.utils.WebSocketUtil;
 import com.ard.work.domain.enums.MessageType;
 import com.ard.work.domain.message.*;
 import com.ard.work.service.control.UavControlService;
@@ -14,8 +15,12 @@
 import org.springframework.web.socket.TextMessage;
 import org.springframework.web.socket.WebSocketSession;
 import org.springframework.web.socket.handler.TextWebSocketHandler;
+
 import javax.annotation.Resource;
+import java.util.Map;
+import java.util.Objects;
 import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ConcurrentHashMap;
 
 
 @Component
@@ -38,6 +43,7 @@
     private UavAllManager uavAllManager;
     @Resource
     private TokenService tokenService;
+    private final Map<Long, Long> lastDisconnectTime = new ConcurrentHashMap<>();
 
     @Override
     public void handleTextMessage(WebSocketSession session, TextMessage message) {
@@ -45,11 +51,14 @@
             String userIdStr = (String) session.getAttributes().get("userId");
             Long userId = Long.parseLong(userIdStr);
             String payload = message.getPayload();
-            log.info("【cmd】Received message: {}", payload);
-            log.info("【cmd】size: {}", WebSocketSessionManager.getOnlineUserCount());
+            log.info("【ws】【{}】Received message: {}, size: {}", userId, payload,
+                    WebSocketSessionManager.getOnlineUserCount());
             BaseMessage<?> baseMessage = JSON.parseObject(payload, BaseMessage.class);
             MessageType messageType = MessageType.fromString(baseMessage.getType());
             switch (messageType) {
+                case HEARTBEAT:
+                    handleHeartbeatMessage(payload, userId);
+                    break;
                 case STREAM:
                     handleStreamMessage(payload, userId);
                     break;
@@ -72,6 +81,19 @@
         } catch (Exception e) {
             log.error("Error handling message: {}", message, e);
         }
+    }
+
+    /**
+     * 处理心跳消息
+     * <p>
+     * 该方法解析给定的负载数据,以获取无人机流消息,并根据消息类型决定是否开始或停止流
+     *
+     * @param payload 消息的负载数据,通常为JSON字符串
+     * @param userId  接收消息的用户ID
+     */
+    private void handleHeartbeatMessage(String payload, Long userId) {
+
+        WebSocketUtil.sendMessage(userId, payload);
     }
 
     /**
@@ -252,44 +274,49 @@
 
     @Override
     public void afterConnectionEstablished(WebSocketSession session) {
-        log.info("【cmd】Connected: {}", session.getId());
         String userIdStr = (String) session.getAttributes().get("userId");
         if (userIdStr == null || userIdStr.isBlank()) {
             return;
         }
         Long userId = Long.parseLong(userIdStr);
+        lastDisconnectTime.remove(userId); // 清除断开标记
         WebSocketSessionManager.addSession(userId, session);
-        log.info("【cmd】size: {}", WebSocketSessionManager.getOnlineUserCount());
+        log.info("【ws】【{}】Connected,size: {}",userId, WebSocketSessionManager.getOnlineUserCount());
     }
 
     @Override
     public void afterConnectionClosed(WebSocketSession session, CloseStatus status) {
-        log.info("【cmd】Disconnected: {}", session.getId());
+
         String userIdStr = (String) session.getAttributes().get("userId");
         if (userIdStr == null || userIdStr.isBlank()) {
             return;
         }
         Long userId = Long.parseLong(userIdStr);
         WebSocketSessionManager.removeSession(userId);
-        log.info("【cmd】size: {}", WebSocketSessionManager.getOnlineUserCount());
-
+        log.info("【ws】【{}】Disconnected,size: {}",userId, WebSocketSessionManager.getOnlineUserCount());
+        long version = System.currentTimeMillis();
+        lastDisconnectTime.put(userId, version);
         // 释放该用户所有 UAV 控制权
-        uavControlService.releaseAllControls(userId);
-        uavStreamManager.stopAllPullStreamByUser(userId);
-        uavStateManager.removeSubscribe(userId);
-        uavTelemetryManager.removeSubscribe(userId);
-        uavSignalManager.removeSubscribe(userId);
-        uavControlManager.removeSubscribe(userId);
 
         // 延迟10秒删除token(若期间没重连)
         CompletableFuture.runAsync(() -> {
             try {
-                Thread.sleep(10_000); // 延迟10秒
-            } catch (InterruptedException ignored) {}
-
+                Thread.sleep(3_000); // 延迟3秒
+            } catch (InterruptedException ignored) {
+            }
+            // 如果版本号不一致,说明用户曾重连 → 不执行删除
+            if (!Objects.equals(lastDisconnectTime.get(userId), version)) {
+                return;
+            }
             if (!WebSocketSessionManager.containsUser(userId)) {
                 LoginUser loginUser = tokenService.getLoginUserByUserId(userId);
                 if (loginUser != null) {
+                    uavControlService.releaseAllControls(userId);
+                    uavStreamManager.stopAllPullStreamByUser(userId);
+                    uavStateManager.removeSubscribe(userId);
+                    uavTelemetryManager.removeSubscribe(userId);
+                    uavSignalManager.removeSubscribe(userId);
+                    uavControlManager.removeSubscribe(userId);
                     tokenService.delLoginUser(loginUser.getToken(), userId);
                     log.info("【cmd】用户 [{}] 超时未重连,已删除 token", userId);
                 }

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