Emqx配置类:EmqxMqttProperties.java
package com.bbzn.device.client.config;//package com.spring.security.demo.config;
import com.bbzn.device.client.enums.TopicName;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.annotation.IntegrationComponentScan;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.core.MessageProducer;
import org.springframework.integration.mqtt.core.DefaultMqttPahoClientFactory;
import org.springframework.integration.mqtt.inbound.MqttPahoMessageDrivenChannelAdapter;
import org.springframework.integration.mqtt.outbound.MqttPahoMessageHandler;
import org.springframework.integration.mqtt.support.DefaultPahoMessageConverter;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHandler;
import org.springframework.messaging.MessagingException;
import javax.annotation.Resource;
import java.util.Arrays;
/**
* @Author wulongbo
* @Date 2020/12/29 11:38
* @Version 1.0
*
* EMQX配置工具类
*/
@Configuration
@IntegrationComponentScan //消息扫描件
@Slf4j
public class EmqxMqttConfig {
@Resource
private EmqxMqttProperties emqxMqttProperties;
@Bean
public DefaultMqttPahoClientFactory getMqttConnectOptions() {
DefaultMqttPahoClientFactory defaultMqttPahoClientFactory = new DefaultMqttPahoClientFactory();
defaultMqttPahoClientFactory.setUserName(emqxMqttProperties.getUsername());
defaultMqttPahoClientFactory.setPassword(emqxMqttProperties.getPassword());
defaultMqttPahoClientFactory.setServerURIs(new String[]{emqxMqttProperties.getHostUrl()});
// 心跳
defaultMqttPahoClientFactory.setKeepAliveInterval(emqxMqttProperties.getKeepAlive());
defaultMqttPahoClientFactory.setConnectionTimeout(emqxMqttProperties.getTimeout());
// 保留/清空曾经连接的客户端信息
defaultMqttPahoClientFactory.setCleanSession(false);
// qos
String playload = "设备已断开连接";
// 遗嘱消息
defaultMqttPahoClientFactory.setWill(new DefaultMqttPahoClientFactory.Will("last_topic", playload.getBytes(), emqxMqttProperties.getQos(), false));
return defaultMqttPahoClientFactory;
}
@Bean
public MessageChannel mqttSubscribeChannel() {
return new DirectChannel();
}
@Bean
public MessageChannel nbMqttSubscribeChannel() {
return new DirectChannel();
}
@Bean
public MessageChannel bridgeMqttSubscribeChannel() {
return new DirectChannel();
}
/**
* 配置client,监听的topic
*/
@Bean
public MessageProducer inbound() {
MqttPahoMessageDrivenChannelAdapter adapter =
new MqttPahoMessageDrivenChannelAdapter(emqxMqttProperties.getClientId() + "_inbound", getMqttConnectOptions(),
emqxMqttProperties.getDefaultTopic().split(","));
adapter.setCompletionTimeout(Math.toIntExact(Long.valueOf(emqxMqttProperties.getTimeout())));
adapter.setConverter(new DefaultPahoMessageConverter());
//默认添加TopicName中所有tipic
// 当一个client处理的时候使用遍历同意订阅
// Arrays.stream(TopicName.values()).forEach(topicName -> adapter.addTopic(topicName.getValue(), 2));
// 当使用多个client处理的时候单独处理
adapter.addTopic(TopicName.ROLL_CALL_DEFAULT.getValue(),2);
// Arrays.stream(emqxMqttProperties.getDefaultTopic().split(",")).forEach(topicName -> adapter.addTopic(topicName, 2));
// adapter.addTopic();
adapter.setQos(2);
adapter.setOutputChannel(mqttSubscribeChannel());
return adapter;
}
/**
* 配置nb的client,监听的topic nb/imei/client
*/
@Bean
public MessageProducer nbInbound() {
MqttPahoMessageDrivenChannelAdapter adapter =
new MqttPahoMessageDrivenChannelAdapter(emqxMqttProperties.getClientId() + "_nbInbound", getMqttConnectOptions(),
emqxMqttProperties.getNbTopic().split(","));
adapter.setCompletionTimeout(Math.toIntExact(Long.valueOf(emqxMqttProperties.getTimeout())));
adapter.setConverter(new DefaultPahoMessageConverter());
//默认添加TopicName中所有tipic
// 当一个client处理的时候使用遍历同意订阅
// Arrays.stream(TopicName.values()).forEach(topicName -> adapter.addTopic(topicName.getValue(), 2));
// 当使用多个client处理的时候单独处理
adapter.addTopic(TopicName.NB_TOPIC_DEFAULT.getValue(),2);
// Arrays.stream(emqxMqttProperties.getDefaultTopic().split(",")).forEach(topicName -> adapter.addTopic(topicName, 2));
// adapter.addTopic();
adapter.setQos(2);
adapter.setOutputChannel(nbMqttSubscribeChannel());
return adapter;
}
/**
* 配置桥接的client,监听的topic bridge/imei/client
*/
@Bean
public MessageProducer bridgeInbound() {
MqttPahoMessageDrivenChannelAdapter adapter =
new MqttPahoMessageDrivenChannelAdapter(emqxMqttProperties.getClientId() + "_bridgeInbound", getMqttConnectOptions(),
emqxMqttProperties.getBridgeTopic().split(","));
adapter.setCompletionTimeout(Math.toIntExact(Long.valueOf(emqxMqttProperties.getTimeout())));
adapter.setConverter(new DefaultPahoMessageConverter());
//默认添加TopicName中所有tipic
// 当一个client处理的时候使用遍历同意订阅
// Arrays.stream(TopicName.values()).forEach(topicName -> adapter.addTopic(topicName.getValue(), 2));
// 当使用多个client处理的时候单独处理
adapter.addTopic(TopicName.BRIDGE_TOPIC_DEFAULT.getValue(),2);
// Arrays.stream(emqxMqttProperties.getDefaultTopic().split(",")).forEach(topicName -> adapter.addTopic(topicName, 2));
// adapter.addTopic();
adapter.setQos(2);
adapter.setOutputChannel(bridgeMqttSubscribeChannel());
return adapter;
}
/**
* 事件触发
*/
@Autowired
private ApplicationEventPublisher eventPublisher;
@Bean
@ServiceActivator(inputChannel = Constants.MQTT_PUBLISH_CHANNEL)
public MessageHandler mqttOutbound() {
MqttPahoMessageHandler messageHandler = new MqttPahoMessageHandler(emqxMqttProperties.getClientId(), getMqttConnectOptions());
messageHandler.setAsync(true);
messageHandler.setDefaultTopic(emqxMqttProperties.getDefaultTopic());
return messageHandler;
}
@Bean
@ServiceActivator(inputChannel = Constants.MQTT_NB_PUBLISH_CHANNEL)
public MessageHandler nbMqttOutbound() {
MqttPahoMessageHandler messageHandler = new MqttPahoMessageHandler(emqxMqttProperties.getClientId(), getMqttConnectOptions());
messageHandler.setAsync(true);
messageHandler.setDefaultTopic(emqxMqttProperties.getNbTopic());
return messageHandler;
}
@Bean
@ServiceActivator(inputChannel = Constants.MQTT_BRIDGE_PUBLISH_CHANNEL)
public MessageHandler bridgeMqttOutbound() {
MqttPahoMessageHandler messageHandler = new MqttPahoMessageHandler(emqxMqttProperties.getClientId(), getMqttConnectOptions());
messageHandler.setAsync(true);
messageHandler.setDefaultTopic(emqxMqttProperties.getBridgeTopic());
return messageHandler;
}
@Bean
public MessageChannel mqttPublishChannel() {
return new DirectChannel();
}
@Bean
public MessageChannel nbMqttPublishChannel() {
return new DirectChannel();
}
@Bean
public MessageChannel bridgeMqttPublishChannel() {
return new DirectChannel();
}
}
controller类: PublishController.java
package com.baba.wlb.publish.controller;
import com.baba.wlb.publish.service.PublishService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* @Author wulongbo
* @Date 2020/12/29 13:58
* @Version 1.0
*/
/**
* 发送消息的Controller
*/
@RestController
@RequestMapping("/publish")
public class PublishController {
/**
* 注入发布者的service服务
*/
@Autowired
private PublishService publishService;
/**
* 发送消息
*/
@RequestMapping("/emqxPublish")
public String emqxPublish(String data,String topic){
publishService.sendToMqtt(data,topic);
return "success";
}
}
service: PublishService.java
package com.baba.wlb.publish.service;
import com.baba.wlb.share.common.Constants;
import org.springframework.integration.annotation.MessagingGateway;
import org.springframework.integration.mqtt.support.MqttHeaders;
import org.springframework.messaging.handler.annotation.Header;
import org.springframework.stereotype.Component;
/**
* @Author wulongbo
* @Date 2020/12/29 14:00
* @Version 1.0
*/
@MessagingGateway(defaultRequestChannel = Constants.MQTT_PUBLISH_CHANNEL)
@Component
public interface PublishService {
void sendToMqtt(String data, @Header(MqttHeaders.TOPIC) String topic);
void sendToMqtt(String data);
void sendToMqtt(@Header(MqttHeaders.TOPIC)String topic, int qos, String data);
}
注:必须加@Header(MqttHeaders.TOPIC)注解哈
application启动类: PublishApplication.java
package com.baba.wlb.publish;
import com.baba.wlb.share.properties.EmqxMqttProperties;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
/**
* @Author wulongbo
* @Date 2020/12/29 14:04
* @Version 1.0
*/
/**
* emqx 发布者启动程序
*/
@SpringBootApplication
@EnableConfigurationProperties({EmqxMqttProperties.class})
public class PublishApplication {
public static void main(String[] args) {
SpringApplication.run(PublishApplication.class,args);
}
}
注:须加入@EnableConfigurationProperties,才能加载到配置文件
yml文件: application.yml
server:
port: 1001
#spring:
# profiles:
# active: common
注:这里我们因为把publish模块设置成为了主类,所以可引入common yml,也可以不引入
service业务类: SubscribeService.java
package com.baba.wlb.subscribe.service;
import com.baba.wlb.share.common.Constants;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHandler;
import org.springframework.messaging.MessagingException;
import org.springframework.stereotype.Service;
/**
* @Author wulongbo
* @Date 2020/12/29 14:11
* @Version 1.0
*/
/**
* 订阅者
*/
@Service
public class SubscribeService {
@Bean
@ServiceActivator(inputChannel = Constants.MQTT_SUBSCRIBE_CHANNEL)
public MessageHandler messageHandler() {
MessageHandler messageHandler = new MessageHandler() {
@Override
public void handleMessage(Message<?> message) throws MessagingException {
System.out.println("订阅者订阅消息头是:" + message.getHeaders());
System.out.println("订阅者订阅消息主体是:" + message.getPayload());
}
};
return messageHandler;
}
}
注:我们把MessageHandler放入了专门的server做业务处理,其实放config类也是OK的
service业务类: SubscribeNbService.java
package com.bbzn.device.client.service.emq;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.bbzn.device.client.config.Constants;
import com.bbzn.device.client.dataobject.Strategy;
import com.bbzn.device.client.service.StrategyService;
import com.bbzn.device.client.service.emq.smoke.SmokeStrategy;
import com.bbzn.device.client.utils.SpringUtils;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHandler;
import org.springframework.messaging.MessagingException;
import org.springframework.stereotype.Service;
/**
* @Author wulongbo
* @Date 2021/7/3 15:28
* @Version 1.0
*/
@Service
@Slf4j
public class SubscribeNbService {
@Autowired
private StrategyService strategyService;
@Bean
@ServiceActivator(inputChannel = Constants.MQTT_NB_SUBSCRIBE_CHANNEL)
public MessageHandler nbMessageHandler() {
MessageHandler messageHandler = new MessageHandler() {
@SneakyThrows
@Override
public void handleMessage(Message<?> message) throws MessagingException {
log.info("NB-烟感订阅者订阅消息头是:" + message.getHeaders());
log.info("NB订阅者订阅主体是:" + message.getPayload());
// 区分主题订阅模式,方便不再需要判断topic
// String topic = message.getHeaders().get("mqtt_receivedTopic").toString();
// String type = topic.substring(topic.lastIndexOf("/")+1, topic.length());
// if("topic1".equalsIgnoreCase(topic)){
// System.out.println("topic1,"+message.getPayload().toString());
// }else if("topic2".equalsIgnoreCase(topic)){
// System.out.println("topic2,"+message.getPayload().toString());
// }
//执行业务
nbHandle((String) message.getPayload());
}
};
return messageHandler;
}
public String nbHandle(String payLoad) {
try {
JSONObject jsonObject = JSON.parseObject(payLoad);
String imei = jsonObject.getString("imei");
String channelCode = jsonObject.getString("code");
//业务判断
if (null == channelCode) {
return "channerlCode不能为空";
}
// 2.根据code查询具体业务实现
Strategy strategy = strategyService.findOneByChannelCode(Long.valueOf(channelCode));
// 2.根据code查询具体业务实现
if (null == strategy) {
return "没有查询到该渠道信息";
}
String strategyBeanId = strategy.getStrategyBeanId();
if (null == strategyBeanId) {
return "没有配置策略BeanId";
}
// 使用beanid从容器获取对象
SmokeStrategy smokeStrategy = SpringUtils.getBean(strategyBeanId, SmokeStrategy.class);
// 执行业务
smokeStrategy.dealAlarm(channelCode, imei);
} catch (Exception e) {
e.printStackTrace();
return "处理失败 : 参数信息" + e.getMessage();
}
return "";
}
}
service类: SubscribeNbBridgeService.java
package com.bbzn.device.client.service.emq;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.bbzn.device.client.config.Constants;
import com.bbzn.device.client.dataobject.Strategy;
import com.bbzn.device.client.service.EmqStrategy;
import com.bbzn.device.client.service.StrategyService;
import com.bbzn.device.client.utils.SpringUtils;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHandler;
import org.springframework.messaging.MessagingException;
import org.springframework.stereotype.Service;
/**
* @Author: wulongbo
* @Date : 2021/4/10 9:14
* @Version 1.0
*/
@Service
@Slf4j
public class SubscribeNbBridgeService {
@Autowired
private StrategyService strategyService;
@Bean
@ServiceActivator(inputChannel = Constants.MQTT_BRIDGE_SUBSCRIBE_CHANNEL)
public MessageHandler messageHandler() {
MessageHandler messageHandler = new MessageHandler() {
@SneakyThrows
@Override
public void handleMessage(Message<?> message) throws MessagingException {
//执行业务
bridgeHandle((String) message.getPayload());
}
};
return messageHandler;
}
public String bridgeHandle(String payLoad) {
try {
JSONObject jsonObject = JSON.parseObject(payLoad);
Long channelCode = jsonObject.getLong("code");
//业务判断
if (null == channelCode) {
return "channerlCode不能为空";
}
// 2.根据code查询具体业务实现
Strategy strategy = strategyService.findOneByChannelCode(channelCode);
if (null == strategy) {
return "没有查询到该渠道信息";
}
String strategyBeanId = strategy.getStrategyBeanId();
if (null == strategyBeanId) {
return "没有配置策略BeanId";
}
// 使用beanid从容器获取对象
EmqStrategy emqStrategy = SpringUtils.getBean(strategyBeanId, EmqStrategy.class);
// 执行业务
return emqStrategy.emqAction(payLoad);
} catch (Exception e) {
e.printStackTrace();
return "处理失败 : 参数信息" + e.getMessage();
}
}
}
常理类:Constants
package com.bbzn.device.client.config;
/**
* 系统常量
*/
public class Constants {
public static final String MQTT_PUBLISH_CHANNEL = "mqttPublishChannel";
public static final String MQTT_NB_PUBLISH_CHANNEL = "nbMqttPublishChannel";
public static final String MQTT_BRIDGE_PUBLISH_CHANNEL = "bridgeMqttPublishChannel";
public static final String MQTT_SUBSCRIBE_CHANNEL = "mqttSubscribeChannel";
public static final String MQTT_NB_SUBSCRIBE_CHANNEL = "nbMqttSubscribeChannel";
public static final String MQTT_BRIDGE_SUBSCRIBE_CHANNEL = "bridgeMqttSubscribeChannel";
}
application启动类: SubscribeApplication.java
package com.baba.wlb.subscribe;
/**
* @Author wulongbo
* @Date 2020/12/29 14:16
* @Version 1.0
*/
import com.baba.wlb.share.properties.EmqxMqttProperties;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
/**
* 订阅者启动类
*/
@SpringBootApplication
@EnableConfigurationProperties({EmqxMqttProperties.class})
public class SubscribeApplication {
public static void main(String[] args) {
SpringApplication.run(SubscribeApplication.class,args);
}
}
至此,我们用Gateway绑定的方式就集成好了MQTT消息推送和消息订阅功能。
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