package com.huimv.publish; import com.huimv.entity.Device; import com.huimv.entity.People; import com.huimv.service.IDeviceService; import com.huimv.service.IPeopleService; import com.huimv.service.impl.DeviceServiceImpl; import com.huimv.untils.SpringUtil; import org.eclipse.paho.client.mqttv3.MqttClient; import org.eclipse.paho.client.mqttv3.MqttConnectOptions; import org.eclipse.paho.client.mqttv3.MqttMessage; import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Configuration; import java.util.List; @Configuration public class PublishMQTT { @Autowired private IPeopleService peopleService; @Autowired private IDeviceService deviceService; public static final String HOST = "tcp://192.168.1.68:1883"; private static final String clientid = "publish"; private MqttClient client; private MqttConnectOptions options; private String userName = "admin"; //非必须 private String passWord = "admin"; //非必须 public void start() { try { // host为主机名,clientid即连接MQTT的客户端ID,一般以唯一标识符表示,MemoryPersistence设置clientid的保存形式,默认为以内存保存 client = new MqttClient(HOST, clientid, new MemoryPersistence()); // MQTT的连接设置 options = new MqttConnectOptions(); // 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,设置为true表示每次连接到服务器都以新的身份连接 options.setCleanSession(true); // 设置连接的用户名 options.setUserName(userName); // 设置连接的密码 options.setPassword(passWord.toCharArray()); // 设置超时时间 单位为秒 options.setConnectionTimeout(10); // 设置会话心跳时间 单位为秒 服务器会每隔1.5*20秒的时间向客户端发送个消息判断客户端是否在线,但这个方法并没有重连的机制 options.setKeepAliveInterval(20); //设置断开后重新连接 options.setAutomaticReconnect(true); // 设置回调 //client.setCallback(new PushCallback()); // MqttTopic topic = client.getTopic(TOPIC1); //遗嘱 // options.setWill(topic, "关闭前最后的信息".getBytes(), 1, true); client.connect(options); DeviceServiceImpl deviceService = SpringUtil.getBean(DeviceServiceImpl.class); List list = deviceService.list(); System.out.println(list); pubMessage("list","huimv_down_867699060002756"); //向client2发送消息 // pubMessage("张三,20,男","test"); // client.unsubscribe("/test/01"); } catch (Exception e) { e.printStackTrace(); } } /** * 消息发送 * @param message * @param topic */ public void pubMessage(String message,String topic){ MqttMessage mess = new MqttMessage(); mess.setQos(1); mess.setRetained(true); mess.setPayload(message.getBytes()); try { client.publish(topic, mess); } catch (Exception e) { //LOGGER.error(e.getLocalizedMessage()); } } public static void main(String[] args) { PublishMQTT client1 = new PublishMQTT(); client1.start(); } }