如何与添加ssl服务器证书的多个客户端建立MQTT连接？在y日志中，没有ssl证书的最大客户端数量为1.BUt。可以很容易地增加客户端数量。这是我的代码的一部分。
class MqttClient(mqtt.Client):
"""Mqtt client inherit from mqtt.Client"""
## constructor
def __init__(self, *arg):
super(MqttClient, self).__init__(arg[0])
## on_publish function
self.on_publish = OnPublish
## on_connect function
self.on_connect = OnConnect
## on_log function
self.on_log = OnLog
## payload
self.payload = ""
## name of client
self.name = arg[0]
## broker ip address
self.broker_ip = arg[1]
## broker port number
self.broker_port = arg[2]
## payload sending time
self.send_time = 0
## payload size
self.payload_size = 0
self.broker = "khanchi"
## return name of client
def getName(self):
return self.name
## return payload sending time
def getSendTime(self):
return self.send_time
## return payload size
def getPayloadSize(self):
return self.payload_size
## connect to broker
def ConnectToBroker(self):
try:
print("connecting to broker(" + self.broker_ip +")")
self.connect(self.broker_ip, self.broker_port)
self.loop_start()
return True
except Exception as Error:
print(Error)
self.disconnect()
return False
## start sending payload until client get disconnected
def start(self):
try:
while True:
self.payload += read_file("p.txt")
self.send_time = int(os.popen("date +%s").read().strip())
self.payload_size = sys.getsizeof(self.payload)
print(sys.getsizeof(self.payload))
self.publish("/", self.payload)
time.sleep(delay)
except Exception as Error:
print(Error)
self.disconnect()
class Mythread(threading.Thread):
"""Mythread inherit from threading.Thread
use to create thread for mqtt-client
"""
def __init__(self, client):
super (Mythread, self).__init__()
self.client = client
## run
def run(self):
self.client.tls_set('/etc/mosquitto/certs/ca.crt')
self.client.tls_insecure_set(True)
if self.client.ConnectToBroker():
self.client.start()