mosquitto-1.4.5的安装和使用
安装
- 下载程序文件
pwd
/usr/local
wget http://mosquitto.org/files/source/mosquitto-1.4.5.tar.gz
- 解压程序文件
tar -xzvf mosquitto-1.4.5.tar.gz
cd mosquitto-1.4.5.tar.gz
- 关闭不需要的安装选项
config.mk包括了多个选项, 可按需关闭或开启，但一旦开启则需要先安装对应的模块
vi config.mk
# Build with SRV lookup support.
WITH_SRV:=no
# Build using libuuid for clientid generation (Linux only - please report if
# supported on your platform).
WITH_UUID:=no
# Build with websockets support on the broker.
WITH_WEBSOCKETS:=no
- 安装基础软件
yum install openssl-devel
yum install gcc-c++
yum install cmake
yum install libuuid-devel （WITH_UUID:=yes 需要）
- 安装程序
make
make install
启动与停止
- 创建用户
mosquitto默认以mosquitto用户启动，可以通过配置文件修改
groupadd mosquitto
useradd -g mosquitto mosquitto
- 设置用户和密码
mosquitto_passwd -c pwfile.example tianming（此为用户名，然后输入两次密码）
- 程序配置
mv /etc/mosquitto/mosquitto.conf.example /etc/mosquitto/mosquitto.conf
- 启动
成功将启动1883端口监听
mosquitto -c /etc/mosquitto/mosquitto.conf -d
[root@localhost mosquitto]# pwd
/etc/mosquitto
[root@localhost mosquitto]# mosquitto -c /etc/mosquitto/mosquitto.conf -d
[root@localhost mosquitto]# 1541836831: mosquitto version 1.4.5 (build date 2018-11-09 23:43:35-0800) starting
1541836831: Config loaded from /etc/mosquitto/mosquitto.conf.
1541836831: Opening ipv4 listen socket on port 1883.
1541836831: Opening ipv6 listen socket on port 1883.
- 停止
[root@localhost ~]# ps -ef|grep mosquitto
mosquit+ 23929 1 0 23:52 pts/2 00:00:00 mosquitto -c /etc/mosquitto/mosquitto.conf -d
root 24427 24084 0 23:59 pts/3 00:00:00 grep --color=auto mosquitto
[root@localhost ~]# kill -9 23929
[root@localhost ~]#
CentOS 6.5关闭防火墙
[root@localhost ~]#servcie iptables stop --临时关闭防火墙
[root@localhost ~]#chkconfig iptables off --永久关闭防火墙
使用
- Mosquitto的简单使用
- 启动MQTT
mosquitto -c /etc/mosquitto/mosquitto.conf -d
介绍
- Mosquitto 介绍
配置
- application-dev.properties
#MQTT
#MQTT-用户名
spring.mqtt.username=tianming
#MQTT-密码
spring.mqtt.password=tianming
#MQTT-服务器连接地址，如果有多个，用逗号隔开
spring.mqtt.url=tcp://192.168.122.29:1883
#MQTT-连接服务器默认客户端ID
spring.mqtt.client.id=65515
#MQTT-默认的消息推送主题，实际可在调用接口时指定
spring.mqtt.default.topic=topic
#超时时间，单位为秒
spring.mqtt.connectionTimeout=30
#会话心跳时间，单位为秒
spring.mqtt.keepAliveInterval=30
#MQTT主题
spring.mqtt.theme=MS/KD/65515
#AES128秘钥
spring.aes.key=asdfgjqwerio
# destination file directory
spring.destination.orderpush=/app/rookie
源码
SpringBoot2.0集成MQTT实现消息推送功能
- 配置类MqttSenderConfig
import org.springframework.beans.factory.annotation.Value;
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.mqtt.core.DefaultMqttPahoClientFactory;
import org.springframework.integration.mqtt.core.MqttPahoClientFactory;
import org.springframework.integration.mqtt.outbound.MqttPahoMessageHandler;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHandler;
@Configuration
@IntegrationComponentScan
public class MqttSenderConfig {
@Value("${spring.mqtt.username}")
private String username;
@Value("${spring.mqtt.password}")
private String password;
@Value("${spring.mqtt.url}")
private String hostUrl;
@Value("${spring.mqtt.client.id}")
private String clientId;
@Value("${spring.mqtt.default.topic}")
private String defaultTopic;
@Value("${spring.mqtt.connectionTimeout}")
private int connectionTimeout;
@Value("${spring.mqtt.keepAliveInterval}")
private int keepAliveInterval;
@Bean
public MqttPahoClientFactory mqttClientFactory() {
DefaultMqttPahoClientFactory factory = new DefaultMqttPahoClientFactory();
factory.setUserName(username);
factory.setPassword(password);
factory.setServerURIs(new String[] { hostUrl });
// 设置超时时间
factory.setConnectionTimeout(connectionTimeout);
// 设置会话心跳时间
factory.setKeepAliveInterval(keepAliveInterval);
return factory;
}
@Bean
@ServiceActivator(inputChannel = "mqttOutboundChannel")
public MessageHandler mqttOutbound() {
MqttPahoMessageHandler messageHandler = new MqttPahoMessageHandler(clientId, mqttClientFactory());
messageHandler.setAsync(true);
messageHandler.setDefaultTopic(defaultTopic);
return messageHandler;
}
@Bean
public MessageChannel mqttOutboundChannel() {
return new DirectChannel();
}
}
- 接口类MqttGateway
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;
@Component
@MessagingGateway(defaultRequestChannel = "mqttOutboundChannel")
public interface MqttGateway {
void sendToMqtt(String data);
void sendToMqtt(String data, @Header(MqttHeaders.TOPIC) String topic);
// data:发送内容 topic:主题名称 qos:消息处理机制（值为：0,1,2，默认为0）
void sendToMqtt(String data, @Header(MqttHeaders.TOPIC) String topic, @Header(MqttHeaders.QOS) int qos);
}
- 目标类调用
int num = 0;
for (int i = 0; i < files.length; i++) {
InputStreamReader inReader = new InputStreamReader(new FileInputStream(files[i]), "GBK");
BufferedReader bReader = new BufferedReader(inReader);
contentLine = bReader.readLine();
while (contentLine != null) {
// 日志打印
LOGGER.info("读取的当前数据==》" + contentLine.trim());
// AES加密
String encryptContent = AESCoder.encrypt(aesKey, contentLine.trim());
// 发送到MQTT
mqttGateway.sendToMqtt(encryptContent, mqttTheme);
num++;
// 读取下一行
contentLine = bReader.readLine();
}
bReader.close();
}
MQTT主题
- topic是消息发送的主题,这里可以自己灵活定义,也可以使用默认的主题,就是配置文件的主题,mqtt_qos是mqtt 对消息处理的几种机制分为0,1,2 其中0表示的是订阅者没收到消息不会再次发送,消息会丢失,1表示的是会尝试重试,一直到接收到消息,但这种情况可能导致订阅者收到多次重复消息,2相比多了一次去重的动作,确保订阅者收到的消息有一次
- 当然,这三种模式下的性能肯定也不一样,mqtt_qos=0是最好的,2是最差的
集成
-
SpringBoot2.0集成MQTT消息推送功能
-
SpringBoot2.0如何集成mqtt消息推送
-
SpringBoot2.0集成MQTT功能之消息订阅处理
参考博客：
[1]. https://www.cnblogs.com/littleatp/p/4835879.html