在线热更新配置

urbanLifelineServ/common/common-redis/src/main/java/org/xyzh/common/redis/listener/AbstractSysConfigListener.java

@@ -0,0 +1,66 @@
+package org.xyzh.common.redis.listener;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.data.redis.connection.Message;
+import org.springframework.data.redis.connection.MessageListener;
+
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * 系统配置变更监听器抽象基类
+ * 通过Redis Pub/Sub接收配置变更事件，延时2秒后执行刷新（等待事务提交）
+ *
+ * @author cascade
+ * @since 2026-01-01
+ */
+public abstract class AbstractSysConfigListener implements MessageListener {
+
+    private static final Logger logger = LoggerFactory.getLogger(AbstractSysConfigListener.class);
+
+    /** 延时时间（毫秒），等待事务提交 */
+    private static final long DELAY_MILLIS = 2000L;
+
+    /** 调度线程池 */
+    private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor(r -> {
+        Thread t = new Thread(r, "sys-config-refresh");
+        t.setDaemon(true);
+        return t;
+    });
+
+    @Override
+    public void onMessage(Message message, byte[] pattern) {
+        String channel = new String(message.getChannel());
+        String body = new String(message.getBody());
+        
+        logger.info("收到配置变更事件: channel={}, body={}", channel, body);
+        
+        // 延时2秒执行，等待发布方事务提交
+        scheduler.schedule(() -> {
+            try {
+                logger.info("开始刷新配置: channel={}", channel);
+                doRefresh(channel, body);
+                logger.info("配置刷新完成: channel={}", channel);
+            } catch (Exception e) {
+                logger.error("配置刷新失败: channel={}", channel, e);
+            }
+        }, DELAY_MILLIS, TimeUnit.MILLISECONDS);
+    }
+
+    /**
+     * 执行配置刷新，子类实现具体逻辑
+     *
+     * @param channel 频道名称（对应配置分组）
+     * @param body    消息体（可选，可传递额外信息）
+     */
+    protected abstract void doRefresh(String channel, String body);
+
+    /**
+     * 获取监听的频道前缀
+     *
+     * @return 频道前缀
+     */
+    public abstract String getChannelPattern();
+}