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mqtt

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pull/19/head
James-hp 5 years ago
parent 670740979c
commit e0cb765540
6 changed files with 192 additions and 7 deletions
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9
ruoyi-common/ruoyi-common-mqtt/src/main/java/com/ruoyi/common/mqtt/domain/MqttBody.java
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package com.ruoyi.common.mqtt.domain;
import java.io.Serializable;
public class MqttBody implements Serializable {
private int code;
private String msg;
private Object body;
}

10
ruoyi-common/ruoyi-common-mqtt/src/main/java/com/ruoyi/common/mqtt/domain/MqttHead.java
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package com.ruoyi.common.mqtt.domain;
import java.io.Serializable;
public class MqttHead implements Serializable {
private int type;
private String topic;
private MqttBody body;
}

38
ruoyi-common/ruoyi-common-mqtt/src/main/java/com/ruoyi/common/mqtt/service/Callback.java
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package com.ruoyi.common.mqtt.service;
import org.eclipse.paho.client.mqttv3.IMqttDeliveryToken;
import org.eclipse.paho.client.mqttv3.MqttCallback;
import org.eclipse.paho.client.mqttv3.MqttMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Callback implements MqttCallback {
private static final Logger log = LoggerFactory.getLogger(Callback.class);
/**
* MQTT 断开连接会执行此方法
*/
@Override
public void connectionLost(Throwable throwable) {
log.info("断开了MQTT连接 ：{}", throwable.getMessage());
log.error(throwable.getMessage(), throwable);
}
/**
* publish发布成功后会执行到这里
*/
@Override
public void deliveryComplete(IMqttDeliveryToken iMqttDeliveryToken) {
log.info("发布消息成功");
}
/**
* subscribe订阅后得到的消息会执行到这里
*/
@Override
public void messageArrived(String topic, MqttMessage message) throws Exception {
// TODO 此处可以将订阅得到的消息进行业务处理、数据存储
log.info("收到来自 " + topic + " 的消息：{}", new String(message.getPayload()));
}
}

123
ruoyi-common/ruoyi-common-mqtt/src/main/java/com/ruoyi/common/mqtt/service/MqttService.java
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package com.ruoyi.common.mqtt.service;
import org.eclipse.paho.client.mqttv3.*;
import org.eclipse.paho.client.mqttv3.persist.MemoryPersistence;
import org.springframework.stereotype.Component;
import org.eclipse.paho.client.mqttv3.MqttCallback;
@Component
public class MqttService {
private String HOST = "tcp://127.0.0.1:1883"; //mqtt服务器的地址和端口号
private final String clientId = "DC" + (int) (Math.random() * 100000000);
private MqttClient mqttClient;
/**
* 客户端connect连接mqtt服务器
*
* @param userName 用户名
* @param passWord 密码
* @param mqttCallback 回调函数
**/
public void setMqttClient(String userName, String passWord, MqttCallback mqttCallback) throws MqttException {
MqttConnectOptions options = mqttConnectOptions(userName, passWord);
if (mqttCallback == null) {
mqttClient.setCallback(new Callback());
} else {
mqttClient.setCallback(mqttCallback);
}
mqttClient.connect(options);
}
/**
* MQTT连接参数设置
*/
private MqttConnectOptions mqttConnectOptions(String userName, String passWord) throws MqttException {
mqttClient = new MqttClient(HOST, clientId, new MemoryPersistence());
MqttConnectOptions options = new MqttConnectOptions();
options.setUserName(userName);
options.setPassword(passWord.toCharArray());
options.setConnectionTimeout(10);///默认：30
options.setAutomaticReconnect(true);//默认：false
options.setCleanSession(false);//默认：true
//options.setKeepAliveInterval(20);//默认：60
return options;
}
/**
* 关闭MQTT连接
*/
public void close() throws MqttException {
mqttClient.close();
mqttClient.disconnect();
}
/**
* 向某个主题发布消息 默认qos：1
*
* @param topic:发布的主题
* @param msg：发布的消息
*/
public void pub(String topic, String msg) throws MqttException {
MqttMessage mqttMessage = new MqttMessage();
//mqttMessage.setQos(2);
mqttMessage.setPayload(msg.getBytes());
MqttTopic mqttTopic = mqttClient.getTopic(topic);
MqttDeliveryToken token = mqttTopic.publish(mqttMessage);
token.waitForCompletion();
}
/**
* 向某个主题发布消息
*
* @param topic: 发布的主题
* @param msg: 发布的消息
* @param qos: 消息质量 Qos：0、1、2
*/
public void pub(String topic, String msg, int qos) throws MqttException {
MqttMessage mqttMessage = new MqttMessage();
mqttMessage.setQos(qos);
mqttMessage.setPayload(msg.getBytes());
MqttTopic mqttTopic = mqttClient.getTopic(topic);
MqttDeliveryToken token = mqttTopic.publish(mqttMessage);
token.waitForCompletion();
}
/**
* 订阅某一个主题 ，此方法默认的的Qos等级为：1
*
* @param topic 主题
*/
public void sub(String topic) throws MqttException {
mqttClient.subscribe(topic);
}
/**
* 订阅某一个主题，可携带Qos
*
* @param topic 所要订阅的主题
* @param qos 消息质量：0、1、2
*/
public void sub(String topic, int qos) throws MqttException {
mqttClient.subscribe(topic, qos);
}
/**
* main函数自己测试用
*/
public static void main(String[] args) throws MqttException {
MqttService mqttConnect = new MqttService();
mqttConnect.setMqttClient("admin", "public", new Callback());
mqttConnect.pub("com/iot/init", "Mr.Qu" + (int) (Math.random() * 100000000));
//mqttConnect.sub("com/iot/init");
}
/**
* main函数自己测试用
*/
public static void main1(String[] args) throws MqttException {
MqttService mqttConnect = new MqttService();
mqttConnect.setMqttClient("admin", "public", new Callback());
mqttConnect.pub("com/iot/init", "Mr.Qu" + (int) (Math.random() * 100000000));
//mqttConnect.sub("com/iot/init");
}
}

12
ruoyi-common/ruoyi-common-mqtt/src/main/java/com/ruoyi/common/mqtt/service/ss.java
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package com.ruoyi.common.mqtt.service;
import org.eclipse.paho.client.mqttv3.MqttException;
public class ss {
public static void main(String[] args) throws MqttException {
MqttService mqttConnect = new MqttService();
mqttConnect.setMqttClient("admin", "public", new Callback());
mqttConnect.pub("com/iot/init", "Mr.Qu" + (int) (Math.random() * 100000000));
//mqttConnect.sub("com/iot/init");
}
}

7
ruoyi-common/ruoyi-common-mqtt/src/main/java/com/ruoyi/common/redis/service/MqttService.java
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package com.ruoyi.common.redis.service;
import org.springframework.stereotype.Component;
@Component
public class MqttService {
}
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