将 mqtt 启动改为异步启动服务

cash-api/system-server/src/main/java/com/czg/mqtt/MqttNettyServer.java

@@ -33,16 +33,23 @@ import javax.annotation.PreDestroy;
 @RequiredArgsConstructor
 public class MqttNettyServer implements CommandLineRunner {
     private final MqttServerProperties properties;
-    // 注入共享组件
     private final MqttSubscriptionManager subscriptionManager;
-
     private final DeviceStatusManager deviceStatusManager;
 
     private EventLoopGroup bossGroup;
     private EventLoopGroup workerGroup;
+    private ChannelFuture channelFuture;
 
     @Override
-    public void run(String... args) throws Exception {
+    public void run(String... args) {
+        // 在单独的线程中启动 Netty 服务器
+        Thread nettyThread = new Thread(this::startServer, "netty-server");
+        // 设置为非守护线程，确保应用关闭时服务器也能正常关闭
+        nettyThread.setDaemon(false);
+        nettyThread.start();
+    }
+
+    private void startServer() {
         bossGroup = new NioEventLoopGroup(properties.getBossGroupThreads());
         workerGroup = new NioEventLoopGroup(properties.getWorkerGroupThreads());
 
@@ -55,27 +62,47 @@ public class MqttNettyServer implements CommandLineRunner {
                     .handler(new LoggingHandler(LogLevel.INFO))
                     .childHandler(new ChannelInitializer<SocketChannel>() {
                         @Override
-                        protected void initChannel(SocketChannel ch) throws Exception {
-                            // 关键修改：每次连接创建新的 MqttServerHandler 实例，注入共享组件
+                        protected void initChannel(SocketChannel ch) {
                             ch.pipeline()
                                     .addLast("mqttDecoder", new MqttDecoder())
                                     .addLast("mqttEncoder", MqttEncoder.INSTANCE)
-                                    .addLast("mqttServerHandler", new MqttServerHandler(subscriptionManager, deviceStatusManager)); // 新实例
+                                    .addLast("mqttServerHandler", new MqttServerHandler(subscriptionManager, deviceStatusManager));
                         }
                     });
 
-            ChannelFuture future = bootstrap.bind(properties.getPort()).sync();
+            channelFuture = bootstrap.bind(properties.getPort()).sync();
             log.info("MQTT服务启动成功，端口：{}", properties.getPort());
-            future.channel().closeFuture().sync();
+
+            // 添加关闭钩子
+            Runtime.getRuntime().addShutdownHook(new Thread(this::stop));
+
+            // 阻塞等待服务器关闭
+            channelFuture.channel().closeFuture().sync();
+        } catch (InterruptedException e) {
+            log.error("MQTT服务被中断", e);
+            Thread.currentThread().interrupt();
+        } catch (Exception e) {
+            log.error("MQTT服务启动失败", e);
         } finally {
-            workerGroup.shutdownGracefully();
-            bossGroup.shutdownGracefully();
+            stop();
         }
     }
 
     @PreDestroy
     public void stop() {
         log.info("MQTT服务开始关闭...");
+
+        // 先关闭服务器通道
+        if (channelFuture != null && channelFuture.channel() != null) {
+            try {
+                channelFuture.channel().close().sync();
+            } catch (InterruptedException e) {
+                log.warn("关闭服务器通道时被中断", e);
+                Thread.currentThread().interrupt();
+            }
+        }
+
+        // 再关闭事件循环组
         if (workerGroup != null) {
             workerGroup.shutdownGracefully();
         }