package com.ruoyi.jianguan.mqtt.util;
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import com.ruoyi.common.core.domain.R;
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import com.ruoyi.jianguan.mqtt.callback.PushCallback;
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import com.ruoyi.jianguan.mqtt.client.ClientMQTT;
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import lombok.extern.slf4j.Slf4j;
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import org.eclipse.paho.client.mqttv3.*;
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import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;
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import org.springframework.context.annotation.Bean;
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import org.springframework.stereotype.Component;
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@Slf4j
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@Component
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public class MqttPushUtil {
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private final static String HOST = "tcp://127.0.0.1:9882";
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private final static String CLIENT_ID = "mqttx_3267186711111fdsasdsa";
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private final static String USER_NAME = "admin";
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private final static String PASS_WORD = "mingxingdianli123";
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private final static Integer TIME_OUT = 30000;
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private final static Integer KEEP_ALIVE = 60000;
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private MqttClient mqttClient;
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/**
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* 推送充电桩数据
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* @param topic
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* @param message
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* @return
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*/
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public R<String> pushChargePileData(String topic, String message){
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try {
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// MqttPushUtil mqttConnect = new MqttPushUtil();
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// mqttConnect.start();
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//发布消息
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this.publish(topic,message);
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return R.ok("["+topic+"]-推送成功;内容为:["+message+"]");
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} catch (MqttException e) {
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return R.fail("推送失败:["+e.getMessage()+"]");
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}
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}
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/**
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* 测试订阅消息
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*/
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public static void main(String[] args) throws Exception {
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MqttPushUtil mqttConnect = new MqttPushUtil();
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mqttConnect.start();
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//订阅消息
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mqttConnect.publish("/cmt/IoT/pub/8/6700/status/silent","message11消息");
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}
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@Bean
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public MqttPushUtil getMqttPushClient() {
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//连接至mqtt服务器，获取mqtt连接
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MqttPushUtil mqttConnect = new MqttPushUtil();
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mqttConnect.start();
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return this;
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}
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/**
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* 初始化mqtt链接
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* @throws MqttException
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*/
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public void start(){
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try {
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// 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
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mqttClient = new MqttClient(HOST, CLIENT_ID + System.currentTimeMillis(), new MemoryPersistence());
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// MQTT的连接设置
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MqttConnectOptions options = new MqttConnectOptions();
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options.setUserName(USER_NAME);
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options.setPassword(PASS_WORD.toCharArray());
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// 设置超时时间 单位为秒
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options.setConnectionTimeout(TIME_OUT);///默认：30
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// 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
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options.setCleanSession(false);//默认：true
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// 设置断开后重新连接(设置为true时将启用自动重新连接)
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options.setAutomaticReconnect(true);//默认：false
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// 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
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options.setKeepAliveInterval(KEEP_ALIVE);//默认：60
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// 设置回调
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mqttClient.setCallback(new PushCallback());
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mqttClient.connect(options);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* 自定义mqtt连接
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* @param host
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* @param clientId
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* @param userName
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* @param passWord
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* @param connectionTimeout
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* @param cleanSession
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* @param automaticReconnect
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* @param keepAliveInterval
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* @param mqttCallback
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* @throws MqttException
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*/
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public void start(String host,String clientId, String userName, String passWord,
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int connectionTimeout, boolean cleanSession,boolean automaticReconnect,
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int keepAliveInterval,MqttCallback mqttCallback) throws MqttException {
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// 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
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mqttClient = new MqttClient(host, clientId + System.currentTimeMillis(), new MemoryPersistence());
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// MQTT的连接设置
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MqttConnectOptions options = new MqttConnectOptions();
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options.setUserName(userName);
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options.setPassword(passWord.toCharArray());
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// 设置超时时间 单位为秒
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options.setConnectionTimeout(connectionTimeout);///默认：30
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// 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
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options.setCleanSession(cleanSession);//默认：true
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// 设置断开后重新连接(设置为true时将启用自动重新连接)
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options.setAutomaticReconnect(automaticReconnect);//默认：false
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// 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
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options.setKeepAliveInterval(keepAliveInterval);//默认：60
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// 设置回调
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mqttClient.setCallback(mqttCallback);
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mqttClient.connect(options);
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}
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/**
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* 发布，默认qos为0，非持久化
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*/
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public void publish(String topic, String message1) throws MqttException {
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publish(0, false, topic, message1);
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}
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/**
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* 发布
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*/
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public void publish(int qos, boolean retained, String topic, String message1) throws MqttException {
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MqttMessage message = new MqttMessage();
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message.setQos(qos);
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message.setRetained(retained);
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message.setPayload(message1.getBytes());
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MqttTopic mTopic = mqttClient.getTopic(topic);
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if (null == mTopic) {
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System.err.println("topic not exist");
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log.error("topic not exist");
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}
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MqttDeliveryToken token;
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token = mTopic.publish(message);
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token.waitForCompletion();
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}
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/**
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* 订阅某个主题，qos默认为0
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*/
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public void subscribe(String topic) {
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subscribe(topic, 0);
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}
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/**
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* 订阅某个主题
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*/
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public void subscribe(String topic, int qos) {
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try {
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mqttClient.subscribe(topic, qos);
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} catch (MqttException e) {
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e.printStackTrace();
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}
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}
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}
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