(1)mosquitto_connect_callback_set (2)mosquitto_disconnect_callback_set (3)mosquitto_publish_callback_set (4)mosquitto_message_callback_set (5)mosquitto_subscribe_callback_set (6)mosquitto_unsubscribe_callback_set (7)mosquitto_log_callback_set 八、实用功能 mosquitto_strerror 九、常见返回值 一、...
voidmosquitto_disconnect_callback_set(structmosquitto*mosq,void(*on_disconnect)(structmosquitto*mosq,void*obj,intrc))功能:断开连接回调函数,当代理收到DISCONNECT命令并断开与客户端的连接,将调用此方法。 参数:structmosquitto*mosq:客户端void(*on_disconnect):回调函数structmosquitto*mosq:客户端数据void*obj:...
mosquitto_log_callback_set(mosq, mqtt_log_callback); mosquitto_connect_callback_set(mosq, mqtt_connect_callback); mosquitto_message_callback_set(mosq, mqtt_message_callback); mosquitto_subscribe_callback_set(mosq, mqtt_subscribe_callback); //客户端连接服务器 err = mosquitto_connect(mosq, HOS...
true, nullptr); if (!mqtt_client) { std::cerr << "Failed to create MQTT client" << std::endl; return 1; } mosquitto_connect_callback_set(mqtt_client, on_connect); const char *broker_address = "localhost"; // 或者你的MQTT broker的IP地址 int...
*/ fprintf(stderr, "Error: All subscriptions rejected.\n"); mosquitto_disconnect(mosq); } } /* Callback called when the client receives a message. */ void on_message(struct mosquitto *mosq, void *obj, const struct mosquitto_message *msg) { /* This blindly prints the payload, but the...
(MQTT_HOST, MQTT_CLIENT,newMemoryPersistence());59//MQTT的连接设置60options =newMqttConnectOptions();61//设置是否清空session,这里如果设置为false表示服务器会保留客户端的连接记录,这里设置为true表示每次连接到服务器都以新的身份连接62options.setCleanSession(true);63//设置连接的用户名64options.set...
$ openssl x509-noout-text-inserver.pemCertificate:Data:Version:3(0x2)Serial Number:7c:06:89:ba:1d:00:04:db:11:1b:e9:6c:44:a4:c3:58:49:0c:12:a1 Signature Algorithm:sha256WithRSAEncryptionIssuer:C=GB,ST=Gloucestershire,L=Dursley,O=LocalhostCA,CN=Localhost RootCAValidity Not ...
结果我把heartbeat_interval值设置高一点(比实际发送心跳/信息的间隔更长)，比如上面设置成60秒，就正常...
message.setQos(QOS); //将一条消息发布到服务器上的一个主题中 sampleClient.publish("Queues",message); // System.out.println(message.getId()+" "+sb); //从服务器断开连接0 sampleClient.disconnect(); } public static void main(String[] args) throws MqttSecurityException, MqttException { ...
MQTT用于websocket的端口是1884或其他什么的，您有8080。也许这就是问题所在。