MQTT - 2. 使用程式以及指令

參考

PHP Publish

PHP 的應用場景可能發生在需要從網頁發出 publish 控制需求，Hoyo 尚未在 PHP 上撰寫常駐程式

安裝，跳過 PHP 版本需求

> composer require php-mqtt/client --ignore-platform-reqs

1	> composer require php-mqtt/client --ignore-platform-reqs

程式範例

<?php
spl_autoload_register(function ($class_name) {
    $load_FileName = str_replace('\\', '/', $class_name);
    $file_name = __DIR__ ."/php/". $load_FileName .".php";
    if ( is_file($file_name) === true ) {
        require_once( $file_name );
    }
});

$server   = 'test.mosquitto.org';
$port     = 1883;
$clientId = 'test-publisher';

$mqtt = new \PhpMqtt\Client\MQTTClient($server, $port, $clientId);
$mqtt->connect();
$mqtt->publish('aa/Get/DemandRange', 'Hello World!', 0);
$mqtt->close();

<?php

spl_autoload_register(function ($class_name) {

$load_FileName = str_replace('\\', '/', $class_name);

$file_name = __DIR__ ."/php/". $load_FileName .".php";

if ( is_file($file_name) === true ) {

require_once( $file_name );

}

});

$server = 'test.mosquitto.org';

$port = 1883;

$clientId = 'test-publisher';

$mqtt = new \PhpMqtt\Client\MQTTClient($server, $port, $clientId);

$mqtt->connect();

$mqtt->publish('aa/Get/DemandRange', 'Hello World!', 0);

$mqtt->close();

Python

使用證書連接 SSL

client = mqtt.Client()
client.tls_set(ca_certs="my_root_ca.pem", certfile="client.pem", keyfile="client.key")

1 2	client = mqtt.Client() client.tls_set(ca_certs="my_root_ca.pem", certfile="client.pem", keyfile="client.key")

不使用證書連接

client.tls_set(cert_reqs=ssl.CERT_NONE)
client.tls_insecure_set(True)

1 2	client.tls_set(cert_reqs=ssl.CERT_NONE) client.tls_insecure_set(True)

完整範例

import paho.mqtt.client as mqtt

# 當地端程式連線伺服器得到回應時，要做的動作
def on_connect(client, userdata, flags, rc):
    logging.info("Connected with result code %s", str(rc))
    client.subscribe("v1/devices/me/rpc/request/+")

# 當接收到從伺服器發送的訊息時要進行的動作
def on_message(client, userdata, msg):
    # logging.info(userdata)
    # 轉換編碼utf-8才看得懂中文

# 設定連線的動作
client.on_connect = on_connect

# 設定接收訊息的動作
client.on_message = on_message

# 設定登入帳號密碼
client.username_pw_set(mqtt_username, mqtt_password)

# 設定連線資訊(IP, Port, 連線時間)
try:
    client.connect(mqtt_broker, int(mqtt_port), 60)
except Exception as e:
    logging.info(e)

#
def loop_forever():
    client.loop_forever()

m = threading.Thread(target=loop_forever)
m.start()

import paho.mqtt.client as mqtt

# 當地端程式連線伺服器得到回應時，要做的動作

def on_connect(client, userdata, flags, rc):

logging.info("Connected with result code %s", str(rc))

client.subscribe("v1/devices/me/rpc/request/+")

# 當接收到從伺服器發送的訊息時要進行的動作

def on_message(client, userdata, msg):

# logging.info(userdata)

# 轉換編碼utf-8才看得懂中文

# 設定連線的動作

client.on_connect = on_connect

# 設定接收訊息的動作

client.on_message = on_message

# 設定登入帳號密碼

client.username_pw_set(mqtt_username, mqtt_password)

# 設定連線資訊(IP, Port, 連線時間)

try:

client.connect(mqtt_broker, int(mqtt_port), 60)

except Exception as e:

logging.info(e)

def loop_forever():

client.loop_forever()

m = threading.Thread(target=loop_forever)

m.start()

CLI

CLI 執行方式除了可以滿足單機執行外，讓 PHP 直接呼叫執行應該是更佳的方式，尤其是剛剛上述的 PHP Publish 效能不彰的情況

mosquitto_sub man page

因為加上了 MySQL 認證

# mosquitto_pub -h 172.16.1.220 -p 1883 -u emqx -P public -t aa/Get/DemandRange -m "0000"

1	# mosquitto_pub -h 172.16.1.220 -p 1883 -u emqx -P public -t aa/Get/DemandRange -m "0000"

完整範例

# mosquitto_pub -h 172.16.1.220 -p 8883 -u emqx -P public --cafile my_root_ca.pem --cert client.pem --key client.key -t aa/Get/DemandRange -m "0000"

1	# mosquitto_pub -h 172.16.1.220 -p 8883 -u emqx -P public --cafile my_root_ca.pem --cert client.pem --key client.key -t aa/Get/DemandRange -m "0000"

-h host
-p port
-u 使用者帳號
-P 使用者密碼
--cafile SSL CA 證書檔案路徑
--cert SSL 證書檔案路徑
--key SSL Key 檔案路徑
-t Topic
-m Message

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MQTT - 2. 使用程式以及指令

參考

PHP Publish

Python

CLI

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MQTT - 2. 使用程式以及指令

參考

PHP Publish

Python

CLI

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