mqtt怎么做到短线重连
时间: 2023-09-22 18:12:30 浏览: 53
要实现mqtt的短线重连,可以使用MqttConnectOptions类中的setAutomaticReconnect方法来设置自动重连的功能。通过该方法,可以指定在连接丢失后是否自动尝试重新连接。默认情况下,自动重连是关闭的。
首先,创建一个MqttConnectOptions对象,并调用setAutomaticReconnect方法将其设置为true,以启用自动重连功能。例如:
MqttConnectOptions options = new MqttConnectOptions();
options.setAutomaticReconnect(true);
接下来,创建MqttClient对象,并使用MqttConnectOptions对象配置连接选项。例如,可以使用getTopic方法获取MqttTopic对象,然后将其传递给MqttClient的构造函数。例如:
MqttTopic mqttTopic = MyMQTTClient.getClient().getTopic(topic);
MqttClient mqttClient = new MqttClient(serverURI, clientId, persistence);
mqttClient.setCallback(new MyMQTTCallback(mqttClient));
mqttClient.connect(options);
在连接断开后,mqttClient会自动尝试重新连接,以保持与mqtt代理服务器的通信。这样就实现了mqtt的短线重连功能。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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