无法使用Python（paho.MQTT.Python）库通过MQTT协议连接到AmazonMQ

我能够用JavaEclipsePAHO客户端连接到AmazonMQ，但在Python中无法做到这一点。它给了我一个错误“gaierror:[Errno-2]名称或服务未知”

上面的python代码可以在本地托管的ActiveMQ MQTT代理以及我托管了ActiveMQ MQTT代理的独立服务器中正常工作。但是AmazonMQ代理也不适用

的问题跟踪程序中已提到此问题，但仍然没有解决方案提供帮助。

您需要从主机变量中删除“ssl://”，并设置ssl上下文，以便使用paho连接到Amazon MQ

import paho.mqtt.publish as publish
import paho.mqtt.client as mqtt

USERNAME = "admin-user"
PASSWORD = "admin-user@12345"
AUTH = {"username":USERNAME, "password":PASSWORD}
HOSTNAME = "ssl://b-c7d1ea8g-f777-4c71-23a3-2d73088fdb64-1.mq.us-west-2.amazonaws.com"
PORT = 8883
TOPICNAME = "paho/test/single"
PAYLOAD = "Hope Stackoverflow Help Me Resolve This Issue!"

publish.single(TOPICNAME, payload=PAYLOAD, hostname=HOSTNAME, port=PORT, auth=AUTH, protocol=mqtt.MQTTv311, transport="tcp", client_id="", keepalive=60, will=None) # This won't work
# publish.single(TOPICNAME, payload=PAYLOAD, hostname="localhost") # This works!

print('published message payload = ', PAYLOAD)

下面是github上发布的示例的工作版本

context = ssl.create_default_context()
client.tls_set_context(context=context)

---

你设法解决了这个问题吗？

import paho.mqtt.client as mqttClient

import time
import ssl

context = ssl.create_default_context()

Connected = False 
broker_address= "b-xxxxxx-acbf-xxxx-xxxx-xxxxx-1.mq.us-east-1.amazonaws.com" # No ssl://
port = 8883
user = "xxxxxx"
password = "xxxxx"

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

    if rc == 0:
        print("Connected to broker")
        global Connected                #Use global variable
        Connected = True                #Signal connection  
        client.subscribe("test/data")
    else:
        print("Connection failed")

def on_message(client, userdata, msg):
    print(msg.topic+" "+str(msg.payload))

client = mqttClient.Client("Test") #create new instance
client.username_pw_set(user, password=password) #set username and password
client.on_connect=on_connect
client.on_message=on_message
client.tls_set_context(context=context)
client.connect(broker_address, port=port)
client.loop_start()

while Connected != True:
    time.sleep(0.1)

client.publish("test/data", "This is my test msg 123.")
time.sleep(10)