mqtt 模块添加

water-common/water-common-mqtt/src/main/java/org/dromara/mqtt/MqttClientManager.java

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+package org.dromara.mqtt;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.dromara.app.mqtt.MqttMessageDispatcher;
+import org.dromara.mqtt.config.properties.MqttProperties;
+import org.eclipse.paho.client.mqttv3.*;
+import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;
+import org.springframework.beans.factory.DisposableBean;
+import org.springframework.beans.factory.InitializingBean;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.annotation.Bean;
+
+import java.nio.charset.StandardCharsets;
+
+@Slf4j
+@AutoConfiguration
+@EnableConfigurationProperties(MqttProperties.class)
+@RequiredArgsConstructor
+public class MqttClientManager implements InitializingBean, DisposableBean {
+
+    private final MqttProperties props;
+    private final MqttMessageDispatcher dispatcher;
+    private MqttClient client;
+
+    @Override
+    public void afterPropertiesSet() throws Exception {
+      //  mqttConnect();
+    }
+
+    @Bean
+    private MqttClient mqttConnect() throws MqttException {
+        client = new MqttClient(props.getBrokerUrl(), props.getClientId(), new MemoryPersistence());
+
+        MqttConnectOptions options = new MqttConnectOptions();
+        options.setUserName(props.getUsername());
+        options.setPassword(props.getPassword().toCharArray());
+        options.setKeepAliveInterval(props.getKeepAlive());
+        options.setConnectionTimeout(props.getConnectionTimeout());
+        options.setAutomaticReconnect(true);
+        options.setCleanSession(false);
+
+        client.setCallback(new MqttCallback() {
+            @Override
+            public void connectionLost(Throwable cause) {
+                log.warn("[MQTT] 连接断开: {}", cause.getMessage());
+            }
+
+            @Override
+            public void messageArrived(String topic, MqttMessage message) {
+                dispatcher.dispatch(topic, new String(message.getPayload()));
+            }
+
+            @Override
+            public void deliveryComplete(IMqttDeliveryToken token) {}
+        });
+
+        client.connect(options);
+        log.info("[MQTT] 连接成功: {}", props.getBrokerUrl());
+
+        // 订阅所有配置的主题
+        for (String topic : props.getTopics().getSubscribe()) {
+            client.subscribe(topic, props.getQos());
+          //  log.info("[MQTT] 订阅主题: {}", topic);
+            log.info("[MQTT] 订阅成功: {} qos={}", topic, props.getQos());  // ← 加这行
+        }
+
+        return client;
+    }
+
+    /**
+     * 发布消息
+     */
+    public void publish(String topic, String payload) {
+        try {
+            MqttMessage message = new MqttMessage(payload.getBytes(StandardCharsets.UTF_8));
+            message.setQos(props.getQos());
+            message.setRetained(false);
+            client.publish(topic, message);
+            log.info("[MQTT] 发布消息 topic={} payload={}", topic, payload);
+        } catch (MqttException e) {
+            log.error("[MQTT] 发布失败 topic={}", topic, e);
+        }
+    }
+
+    @Override
+    public void destroy() throws Exception {
+        if (client != null && client.isConnected()) {
+            client.disconnect();
+            client.close();
+        }
+    }
+}

water-common/water-common-mqtt/src/main/java/org/dromara/mqtt/config/properties/MqttProperties.java

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+package org.dromara.mqtt.config.properties;
+
+
+import lombok.Data;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@Data
+//@Component
+@ConfigurationProperties(prefix = "mqtt")
+public class MqttProperties {
+
+    private String brokerUrl;
+    private String username;
+    private String password;
+    private String clientId;
+    private int qos = 1;
+    private int keepAlive = 60;
+    private int connectionTimeout = 30;
+    private Topics topics;
+
+    @Data
+    public static class Topics {
+        private List<String> subscribe;
+        private String publishPrefix;
+    }
+}

water-common/water-common-mqtt/src/main/resources/META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports

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+org.dromara.mqtt.MqttClientManager
+org.dromara.app.mqtt.MqttMessageDispatcher