feat: 字典实时同步和 websocket 重构优化

src/main/java/com/youlai/boot/system/handler/OnlineUserJobHandler.java

@@ -0,0 +1,33 @@
+package com.youlai.boot.system.handler;
+
+
+import com.youlai.boot.system.service.UserOnlineService;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.messaging.simp.SimpMessagingTemplate;
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+/**
+ * 在线用户定时任务
+ *
+ * @since 2024/10/7
+ *
+ */
+@Component
+@Slf4j
+@RequiredArgsConstructor
+public class OnlineUserJobHandler {
+
+    private final UserOnlineService userOnlineService;
+    private final SimpMessagingTemplate messagingTemplate;
+
+    // 每分钟统计一次在线用户数
+    @Scheduled(cron = "0 * * * * ?")
+    public void execute() {
+        log.info("定时任务：统计在线用户数");
+        // 推送在线用户人数
+        messagingTemplate.convertAndSend("/topic/onlineUserCount", userOnlineService.getOnlineUserCount());
+    }
+
+}