好久也没写博客了
- 那肯定不是自己懒，哈哈，这个学期在五月多的时候接手一个项目就没怎么学习新东西，然后也忙于师弟的培训，后面学校的电子设计竞赛也紧接而来，事情有点多；终于忙完了期末，现在也开始留校继续学习啦！继续加油啦！
回归正题
因为之前就有使用到MQTT的客户端去接收一个小数据，然后我觉得不难用了他的，自己写了一个（如下图）
是用的pyside6写的，本来是打算作为期末python作业的，然后后面的考核方式的改变，这个上位机就成为了一个一部分，大概时间的话记得是过年前做的，初次学习也是遇到了很多bug，归咎还是自己对一些东西不熟悉，没认真学，困惑了我好几天。本来想开源很久了，只是事情太多了，慢慢地就忘掉了这件事情。
先贴代码UI部分
# -*- coding: utf-8 -*-
################################################################################
## Form generated from reading UI file 'myui.ui'
##
## Created by: Qt User Interface Compiler version 6.2.2
##
## WARNING! All changes made in this file will be lost when recompiling UI file!
################################################################################
from PySide6.QtCore import (QCoreApplication, QDate, QDateTime, QLocale,
QMetaObject, QObject, QPoint, QRect,
QSize, QTime, QUrl, Qt)
from PySide6.QtGui import (QBrush, QColor, QConicalGradient, QCursor,
QFont, QFontDatabase, QGradient, QIcon,
QImage, QKeySequence, QLinearGradient, QPainter,
QPalette, QPixmap, QRadialGradient, QTransform)
from PySide6.QtWidgets import (QApplication, QCheckBox, QComboBox, QGroupBox,
QHBoxLayout, QLabel, QLineEdit, QPlainTextEdit,
QPushButton, QSizePolicy, QSpacerItem, QTextEdit,
QVBoxLayout, QWidget)
class Ui_MQTT(object):
def setupUi(self, MQTT):
if not MQTT.objectName():
MQTT.setObjectName(u"MQTT")
MQTT.resize(900, 788)
MQTT.setStyleSheet(u"QLabel{\n"
"rgb(188, 191, 255)\n"
"}")
self.horizontalLayout_17 = QHBoxLayout(MQTT)
self.horizontalLayout_17.setObjectName(u"horizontalLayout_17")
self.verticalLayout_5 = QVBoxLayout()
self.verticalLayout_5.setObjectName(u"verticalLayout_5")
self.groupBox = QGroupBox(MQTT)
self.groupBox.setObjectName(u"groupBox")
self.verticalLayout = QVBoxLayout(self.groupBox)
self.verticalLayout.setObjectName(u"verticalLayout")
self.horizontalLayout = QHBoxLayout()
self.horizontalLayout.setObjectName(u"horizontalLayout")
self.label = QLabel(self.groupBox)
self.label.setObjectName(u"label")
self.horizontalLayout.addWidget(self.label)
self.Serveraddress = QLineEdit(self.groupBox)
self.Serveraddress.setObjectName(u"Serveraddress")
self.horizontalLayout.addWidget(self.Serveraddress)
self.horizontalLayout.setStretch(0, 1)
self.horizontalLayout.setStretch(1, 4)
self.verticalLayout.addLayout(self.horizontalLayout)
self.horizontalLayout_2 = QHBoxLayout()
self.horizontalLayout_2.setObjectName(u"horizontalLayout_2")
self.label_2 = QLabel(self.groupBox)
self.label_2.setObjectName(u"label_2")
self.horizontalLayout_2.addWidget(self.label_2)
self.Clinent_ID = QLineEdit(self.groupBox)
self.Clinent_ID.setObjectName(u"Clinent_ID")
self.horizontalLayout_2.addWidget(self.Clinent_ID)
self.horizontalLayout_2.setStretch(0, 1)
self.horizontalLayout_2.setStretch(1, 4)
self.verticalLayout.addLayout(self.horizontalLayout_2)
self.horizontalLayout_3 = QHBoxLayout()
self.horizontalLayout_3.setObjectName(u"horizontalLayout_3")
self.label_3 = QLabel(self.groupBox)
self.label_3.setObjectName(u"label_3")
self.horizontalLayout_3.addWidget(self.label_3)
self.Connextion_status = QLineEdit(self.groupBox)
self.Connextion_status.setObjectName(u"Connextion_status")
self.horizontalLayout_3.addWidget(self.Connextion_status)
self.horizontalLayout_3.setStretch(0, 1)
self.horizontalLayout_3.setStretch(1, 4)
self.verticalLayout.addLayout(self.horizontalLayout_3)
self.horizontalLayout_4 = QHBoxLayout()
self.horizontalLayout_4.setObjectName(u"horizontalLayout_4")
self.label_10 = QLabel(self.groupBox)
self.label_10.setObjectName(u"label_10")
self.horizontalLayout_4.addWidget(self.label_10)
self.Connextion_status_2 = QLineEdit(self.groupBox)
self.Connextion_status_2.setObjectName(u"Connextion_status_2")
self.horizontalLayout_4.addWidget(self.Connextion_status_2)
self.horizontalLayout_4.setStretch(0, 1)
self.horizontalLayout_4.setStretch(1, 4)
self.verticalLayout.addLayout(self.horizontalLayout_4)
self.horizontalLayout_5 = QHBoxLayout()
self.horizontalLayout_5.setObjectName(u"horizontalLayout_5")
self.label_13 = QLabel(self.groupBox)
self.label_13.setObjectName(u"label_13")
self.horizontalLayout_5.addWidget(self.label_13)
self.Connextion_status_3 = QLineEdit(self.groupBox)
self.Connextion_status_3.setObjectName(u"Connextion_status_3")
self.horizontalLayout_5.addWidget(self.Connextion_status_3)
self.horizontalLayout_5.setStretch(0, 1)
self.horizontalLayout_5.setStretch(1, 4)
self.verticalLayout.addLayout(self.horizontalLayout_5)
self.horizontalLayout_6 = QHBoxLayout()
self.horizontalLayout_6.setObjectName(u"horizontalLayout_6")
self.label_14 = QLabel(self.groupBox)
self.label_14.setObjectName(u"label_14")
self.horizontalLayout_6.addWidget(self.label_14)
self.Connextion_status_4 = QLineEdit(self.groupBox)
self.Connextion_status_4.setObjectName(u"Connextion_status_4")
self.horizontalLayout_6.addWidget(self.Connextion_status_4)
self.horizontalLayout_6.setStretch(0, 1)
self.horizontalLayout_6.setStretch(1, 4)
self.verticalLayout.addLayout(self.horizontalLayout_6)
self.horizontalLayout_7 = QHBoxLayout()
self.horizontalLayout_7.setObjectName(u"horizontalLayout_7")
self.horizontalSpacer_2 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_7.addItem(self.horizontalSpacer_2)
self.connection = QPushButton(self.groupBox)
self.connection.setObjectName(u"connection")
self.connection.setIconSize(QSize(16, 16))
self.horizontalLayout_7.addWidget(self.connection)
self.horizontalSpacer = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_7.addItem(self.horizontalSpacer)
self.disconnection = QPushButton(self.groupBox)
self.disconnection.setObjectName(u"disconnection")
self.disconnection.setEnabled(False)
self.disconnection.setIconSize(QSize(16, 16))
self.horizontalLayout_7.addWidget(self.disconnection)
self.horizontalSpacer_3 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_7.addItem(self.horizontalSpacer_3)
self.horizontalLayout_7.setStretch(0, 3)
self.horizontalLayout_7.setStretch(1, 1)
self.horizontalLayout_7.setStretch(3, 1)
self.horizontalLayout_7.setStretch(4, 2)
self.verticalLayout.addLayout(self.horizontalLayout_7)
self.verticalLayout_5.addWidget(self.groupBox)
self.groupBox_2 = QGroupBox(MQTT)
self.groupBox_2.setObjectName(u"groupBox_2")
self.verticalLayout_2 = QVBoxLayout(self.groupBox_2)
self.verticalLayout_2.setObjectName(u"verticalLayout_2")
self.horizontalLayout_8 = QHBoxLayout()
self.horizontalLayout_8.setObjectName(u"horizontalLayout_8")
self.label_7 = QLabel(self.groupBox_2)
self.label_7.setObjectName(u"label_7")
self.horizontalLayout_8.addWidget(self.label_7)
self.Sub_Topic = QLineEdit(self.groupBox_2)
self.Sub_Topic.setObjectName(u"Sub_Topic")
self.horizontalLayout_8.addWidget(self.Sub_Topic)
self.horizontalLayout_8.setStretch(0, 1)
self.horizontalLayout_8.setStretch(1, 4)
self.verticalLayout_2.addLayout(self.horizontalLayout_8)
self.horizontalLayout_9 = QHBoxLayout()
self.horizontalLayout_9.setObjectName(u"horizontalLayout_9")
self.label_8 = QLabel(self.groupBox_2)
self.label_8.setObjectName(u"label_8")
self.horizontalLayout_9.addWidget(self.label_8)
self.horizontalSpacer_9 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_9.addItem(self.horizontalSpacer_9)
self.comboBox_2 = QComboBox(self.groupBox_2)
self.comboBox_2.addItem("")
self.comboBox_2.addItem("")
self.comboBox_2.addItem("")
self.comboBox_2.setObjectName(u"comboBox_2")
self.horizontalLayout_9.addWidget(self.comboBox_2)
self.horizontalSpacer_10 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_9.addItem(self.horizontalSpacer_10)
self.horizontalLayout_9.setStretch(0, 1)
self.horizontalLayout_9.setStretch(1, 7)
self.horizontalLayout_9.setStretch(2, 13)
self.horizontalLayout_9.setStretch(3, 33)
self.verticalLayout_2.addLayout(self.horizontalLayout_9)
self.horizontalLayout_10 = QHBoxLayout()
self.horizontalLayout_10.setObjectName(u"horizontalLayout_10")
self.label_9 = QLabel(self.groupBox_2)
self.label_9.setObjectName(u"label_9")
self.horizontalLayout_10.addWidget(self.label_9)
self.DisSub_Topic_2 = QLineEdit(self.groupBox_2)
self.DisSub_Topic_2.setObjectName(u"DisSub_Topic_2")
self.horizontalLayout_10.addWidget(self.DisSub_Topic_2)
self.horizontalLayout_10.setStretch(0, 1)
self.horizontalLayout_10.setStretch(1, 4)
self.verticalLayout_2.addLayout(self.horizontalLayout_10)
self.horizontalLayout_11 = QHBoxLayout()
self.horizontalLayout_11.setObjectName(u"horizontalLayout_11")
self.horizontalSpacer_4 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_11.addItem(self.horizontalSpacer_4)
self.Subscribe = QPushButton(self.groupBox_2)
self.Subscribe.setObjectName(u"Subscribe")
self.horizontalLayout_11.addWidget(self.Subscribe)
self.horizontalSpacer_5 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_11.addItem(self.horizontalSpacer_5)
self.Unsubscribe = QPushButton(self.groupBox_2)
self.Unsubscribe.setObjectName(u"Unsubscribe")
self.horizontalLayout_11.addWidget(self.Unsubscribe)
self.horizontalSpacer_6 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_11.addItem(self.horizontalSpacer_6)
self.horizontalLayout_11.setStretch(0, 3)
self.horizontalLayout_11.setStretch(1, 2)
self.horizontalLayout_11.setStretch(2, 1)
self.horizontalLayout_11.setStretch(3, 1)
self.horizontalLayout_11.setStretch(4, 2)
self.verticalLayout_2.addLayout(self.horizontalLayout_11)
self.verticalLayout_5.addWidget(self.groupBox_2)
self.groupBox_3 = QGroupBox(MQTT)
self.groupBox_3.setObjectName(u"groupBox_3")
self.verticalLayout_3 = QVBoxLayout(self.groupBox_3)
self.verticalLayout_3.setObjectName(u"verticalLayout_3")
self.horizontalLayout_12 = QHBoxLayout()
self.horizontalLayout_12.setObjectName(u"horizontalLayout_12")
self.label_4 = QLabel(self.groupBox_3)
self.label_4.setObjectName(u"label_4")
self.horizontalLayout_12.addWidget(self.label_4)
self.Topic = QLineEdit(self.groupBox_3)
self.Topic.setObjectName(u"Topic")
self.horizontalLayout_12.addWidget(self.Topic)
self.horizontalLayout_12.setStretch(0, 1)
self.horizontalLayout_12.setStretch(1, 4)
self.verticalLayout_3.addLayout(self.horizontalLayout_12)
self.horizontalLayout_13 = QHBoxLayout()
self.horizontalLayout_13.setObjectName(u"horizontalLayout_13")
self.label_5 = QLabel(self.groupBox_3)
self.label_5.setObjectName(u"label_5")
self.horizontalLayout_13.addWidget(self.label_5)
self.horizontalSpacer_11 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_13.addItem(self.horizontalSpacer_11)
self.comboBox = QComboBox(self.groupBox_3)
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.setObjectName(u"comboBox")
self.horizontalLayout_13.addWidget(self.comboBox)
self.horizontalSpacer_7 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_13.addItem(self.horizontalSpacer_7)
self.checkBox = QCheckBox(self.groupBox_3)
self.checkBox.setObjectName(u"checkBox")
self.horizontalLayout_13.addWidget(self.checkBox)
self.horizontalSpacer_8 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_13.addItem(self.horizontalSpacer_8)
self.checkBox_2 = QCheckBox(self.groupBox_3)
self.checkBox_2.setObjectName(u"checkBox_2")
self.horizontalLayout_13.addWidget(self.checkBox_2)
self.horizontalLayout_13.setStretch(0, 1)
self.horizontalLayout_13.setStretch(1, 3)
self.horizontalLayout_13.setStretch(3, 2)
self.horizontalLayout_13.setStretch(4, 1)
self.horizontalLayout_13.setStretch(5, 1)
self.horizontalLayout_13.setStretch(6, 1)
self.verticalLayout_3.addLayout(self.horizontalLayout_13)
self.horizontalLayout_14 = QHBoxLayout()
self.horizontalLayout_14.setObjectName(u"horizontalLayout_14")
self.label_6 = QLabel(self.groupBox_3)
self.label_6.setObjectName(u"label_6")
self.horizontalLayout_14.addWidget(self.label_6)
self.Release_new = QPlainTextEdit(self.groupBox_3)
self.Release_new.setObjectName(u"Release_new")
self.horizontalLayout_14.addWidget(self.Release_new)
self.verticalLayout_3.addLayout(self.horizontalLayout_14)
self.horizontalLayout_18 = QHBoxLayout()
self.horizontalLayout_18.setObjectName(u"horizontalLayout_18")
self.horizontalSpacer_12 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_18.addItem(self.horizontalSpacer_12)
self.Release = QPushButton(self.groupBox_3)
self.Release.setObjectName(u"Release")
self.horizontalLayout_18.addWidget(self.Release)
self.horizontalSpacer_13 = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
self.horizontalLayout_18.addItem(self.horizontalSpacer_13)
self.verticalLayout_3.addLayout(self.horizontalLayout_18)
self.verticalLayout_5.addWidget(self.groupBox_3)
self.horizontalLayout_17.addLayout(self.verticalLayout_5)
self.groupBox_4 = QGroupBox(MQTT)
self.groupBox_4.setObjectName(u"groupBox_4")
self.verticalLayout_4 = QVBoxLayout(self.groupBox_4)
self.verticalLayout_4.setObjectName(u"verticalLayout_4")
self.horizontalLayout_15 = QHBoxLayout()
self.horizontalLayout_15.setObjectName(u"horizontalLayout_15")
self.label_11 = QLabel(self.groupBox_4)
self.label_11.setObjectName(u"label_11")
self.horizontalLayout_15.addWidget(self.label_11)
self.eliminate = QPushButton(self.groupBox_4)
self.eliminate.setObjectName(u"eliminate")
self.horizontalLayout_15.addWidget(self.eliminate)
self.verticalLayout_4.addLayout(self.horizontalLayout_15)
self.textEdit = QTextEdit(self.groupBox_4)
self.textEdit.setObjectName(u"textEdit")
self.verticalLayout_4.addWidget(self.textEdit)
self.horizontalLayout_16 = QHBoxLayout()
self.horizontalLayout_16.setObjectName(u"horizontalLayout_16")
self.label_12 = QLabel(self.groupBox_4)
self.label_12.setObjectName(u"label_12")
self.horizontalLayout_16.addWidget(self.label_12)
self.rething_remove = QPushButton(self.groupBox_4)
self.rething_remove.setObjectName(u"rething_remove")
self.horizontalLayout_16.addWidget(self.rething_remove)
self.verticalLayout_4.addLayout(self.horizontalLayout_16)
self.textEdit_2 = QTextEdit(self.groupBox_4)
self.textEdit_2.setObjectName(u"textEdit_2")
self.verticalLayout_4.addWidget(self.textEdit_2)
self.horizontalLayout_17.addWidget(self.groupBox_4)
self.retranslateUi(MQTT)
self.connection.clicked.connect(MQTT.get_Serveraddress_text)
self.rething_remove.clicked.connect(self.textEdit_2.clear)
self.Subscribe.clicked.connect(MQTT.pul)
self.eliminate.clicked.connect(self.textEdit.clear)
QMetaObject.connectSlotsByName(MQTT)
# setupUi
def retranslateUi(self, MQTT):
MQTT.setWindowTitle(QCoreApplication.translate("MQTT", u"Form", None))
self.groupBox.setTitle(QCoreApplication.translate("MQTT", u"\u8fde\u63a5", None))
self.label.setText(QCoreApplication.translate("MQTT", u"\u670d\u52a1\u5668\u5730\u5740", None))
self.Serveraddress.setPlaceholderText(QCoreApplication.translate("MQTT", u"120.76.133.146(\u9ed8\u8ba4)", None))
self.label_2.setText(QCoreApplication.translate("MQTT", u"\u5ba2\u6237\u673a\u6807\u8bc6", None))
self.Clinent_ID.setPlaceholderText(QCoreApplication.translate("MQTT", u"\u7cfb\u7edf\u81ea\u52a8\u751f\u6210\u6807\u8bc6(\u4e0d\u7528\u586b)", None))
self.label_3.setText(QCoreApplication.translate("MQTT", u"\u7aef\u53e3\u53f7(\u9ed8\u8ba4)", None))
self.Connextion_status.setText("")
self.Connextion_status.setPlaceholderText(QCoreApplication.translate("MQTT", u"1883\uff0c18083", None))
self.label_10.setText(QCoreApplication.translate("MQTT", u"\u8fde\u63a5\u72b6\u6001", None))
self.Connextion_status_2.setText("")
self.Connextion_status_2.setPlaceholderText(QCoreApplication.translate("MQTT", u"\u672a\u8fde\u63a5", None))
self.label_13.setText(QCoreApplication.translate("MQTT", u"\u7528\u6237\u540d", None))
self.Connextion_status_3.setText("")
self.Connextion_status_3.setPlaceholderText(QCoreApplication.translate("MQTT", u"admin(\u9ed8\u8ba4broker\u7528\u6237\u540d)", None))
self.label_14.setText(QCoreApplication.translate("MQTT", u"\u5bc6\u7801", None))
self.Connextion_status_4.setText("")
self.Connextion_status_4.setPlaceholderText(QCoreApplication.translate("MQTT", u"public(\u9ed8\u8ba4broker\u5bc6\u7801)", None))
self.connection.setText(QCoreApplication.translate("MQTT", u"\u8fde\u63a5", None))
self.disconnection.setText(QCoreApplication.translate("MQTT", u"\u65ad\u5f00\u8fde\u63a5", None))
self.groupBox_2.setTitle(QCoreApplication.translate("MQTT", u"\u8ba2\u9605", None))
self.label_7.setText(QCoreApplication.translate("MQTT", u"\u8ba2\u9605\u4e3b\u9898", None))
self.Sub_Topic.setPlaceholderText(QCoreApplication.translate("MQTT", u"\u9ed8\u8ba4\u4e3b\u9898:python_mqtt", None))
self.label_8.setText(QCoreApplication.translate("MQTT", u"\u8bf7\u6c42\u670d\u52a1\u8d28\u91cf", None))
self.comboBox_2.setItemText(0, QCoreApplication.translate("MQTT", u"QoS 0", None))
self.comboBox_2.setItemText(1, QCoreApplication.translate("MQTT", u"QoS 1", None))
self.comboBox_2.setItemText(2, QCoreApplication.translate("MQTT", u"QoS 2", None))
self.label_9.setText(QCoreApplication.translate("MQTT", u"\u53d6\u6d88\u8ba2\u9605\u4e3b\u9898", None))
self.DisSub_Topic_2.setPlaceholderText(QCoreApplication.translate("MQTT", u"\u8bf7\u8f93\u5165\u4e3b\u9898", None))
self.Subscribe.setText(QCoreApplication.translate("MQTT", u"\u8ba2\u9605", None))
self.Unsubscribe.setText(QCoreApplication.translate("MQTT", u"\u53d6\u6d88\u8ba2\u9605", None))
self.groupBox_3.setTitle(QCoreApplication.translate("MQTT", u"\u53d1\u5e03", None))
self.label_4.setText(QCoreApplication.translate("MQTT", u"\u4e3b\u9898", None))
self.label_5.setText(QCoreApplication.translate("MQTT", u"\u670d\u52a1\u8d28\u91cf", None))
self.comboBox.setItemText(0, QCoreApplication.translate("MQTT", u"0-\u81f3\u591a\u4e00\u6b21", None))
self.comboBox.setItemText(1, QCoreApplication.translate("MQTT", u"1-\u81f3\u5c11\u4e00\u6b21", None))
self.comboBox.setItemText(2, QCoreApplication.translate("MQTT", u"2-\u521a\u597d\u4e00\u6b21", None))
self.checkBox.setText(QCoreApplication.translate("MQTT", u"\u5df2\u4fdd\u7559", None))
self.checkBox_2.setText(QCoreApplication.translate("MQTT", u"\u5341\u516d\u8fdb\u5236", None))
self.label_6.setText(QCoreApplication.translate("MQTT", u"\u6d88\u606f", None))
self.Release.setText(QCoreApplication.translate("MQTT", u"\u53d1\u5e03", None))
self.groupBox_4.setTitle(QCoreApplication.translate("MQTT", u"\u5386\u53f2\u8bb0\u5f55", None))
self.label_11.setText(QCoreApplication.translate("MQTT", u"\u8ba2\u9605\u4e8b\u4ef6\u8bb0\u5f55", None))
self.eliminate.setText(QCoreApplication.translate("MQTT", u"\u6e05\u9664", None))
self.label_12.setText(QCoreApplication.translate("MQTT", u"\u53d1\u5e03\u4e8b\u4ef6\u8bb0\u5f55", None))
self.rething_remove.setText(QCoreApplication.translate("MQTT", u"\u6e05\u9664", None))
# retranslateUi
这里是main的
import sys
from PySide6 import QtCore, QtWidgets
from PySide6.QtCore import Slot, QObject, Signal
from PySide6.QtWidgets import QTextBrowser
from myui import Ui_MQTT
from threading import Thread
from PySide6.QtGui import QIcon
import datetime
import random
import time
from paho.mqtt import client as mqtt_client
topic = 'python_mqtt' # 发布的主题，订阅时需要使用这个主题才能订阅此消息
# 随机生成一个客户端id
client_id = 'python-mqtt-{}'.format(random.randint(0, 1000))
port = 1883
address = '120.76.132.146' #服务器地址
# 把MQTT封装成类方便调用
class MQTT(QObject):
"""MQTT通信"""
signal = Signal(str, str) #定义一个信号对数据进行发送
def __init__(self, parent=None):
super().__init__(parent)
def _connect_mqtt(self) -> mqtt_client:
def on_connect(client, userdata, flags, rc): #MQTT的连接回调函数
if rc == 0:
print("Connected to MQTT Broker!")
else:
print("Failed to connect, return code %d\n", rc)
client = mqtt_client.Client(client_id) #与MQTT代理（broker）进行通信的主要类
# client.username_pw_set(username=username, password=password) #如果需要用户密码登录
client.on_connect = on_connect
client.connect(address, port)
return client
def _subscribe(self, client: mqtt_client):
def on_message(client, userdata, msg): #MQTT的订阅回调函数
print(f"Received `{msg.payload.decode()}` from `{msg.topic}` topic")
self.signal.emit(msg.topic, msg.payload.decode()) #这里就是发送信号定义好的静态属性，到函数show进行显示
client.subscribe(topic)
client.on_message = on_message
def on_unsubscribe(client, userdata, mid): #MQTT的取消订阅回调函数
print(mid)
client.on_unsubscribe = on_unsubscribe
def mqtt_run(self):
client = self._connect_mqtt()
global cl #实例化后的cl继承client的类
cl = client
self._subscribe(client)
client.loop_start() # 开启新线程处理MQTT数据
def get_datetime_str(style='dt'): #获取当前时间
cur_time = datetime.datetime.now()
date_str = cur_time.strftime('%y-%m-%d ')
time_str = cur_time.strftime('%H-%M-%S ')
if style == 'data':
return date_str
elif style == 'time':
return time_str
else:
return date_str + ' ' + time_str
class View(QtWidgets.QWidget, Ui_MQTT):
def __int__(self):
super().__init__()
self.get_Serveraddress_text()
self.ctext = ''
self.topic = 'test'
self.Release_topic = ''
self.Release_content = ''
self.time = ''
@Slot()
def show_data(self, topic, payload): #显示订阅事件的信息
self.time = get_datetime_str()
self.textEdit.append("主题：" + topic + " " + "消息：" + payload + ' ' + '时间:' + self.time)
@Slot()
def on_disconnection_clicked(self): #取消连接的触发函数
self.connection.setEnabled(True)
self.disconnection.setEnabled(False)
cl.disconnect()
self.Connextion_status_2.setText("成功断开连接" + ' ' + '时间:' + self.time)
@Slot()
def get_Serveraddress_text(self): #获取用户的连接地址
self.ctext = self.Serveraddress.text()
if self.ctext == '':
self.Serveraddress.setText(f"{address}")
# 获取服务器地址
@Slot()
def on_connection_clicked(self): #连接服务端的触发函数
client_address = self.Serveraddress.text()
self.connection.setEnabled(False)
self.disconnection.setEnabled(True)
self.time = get_datetime_str()
self.Connextion_status_2.setText("成功连接" + ' ' + '时间:' + self.time)
self.Clinent_ID.setText(f"{client_id}")
self.Connextion_status.setText(f"{port}")
def run():
client = MQTT() #实例化MQTT
client.mqtt_run()
client.signal.connect(view.show_data) # 将MQTT数据接收信号和UI刷新槽关联
t = Thread(target=run)
t.start()
# 开启多线程，防止显示事件信息和UI界面刷新冲突导致的界面卡顿
@Slot()
def pul(self):
self.topic = self.Sub_Topic.text()
print(self.topic)
@Slot()
def on_Subscribe_clicked(self): #订阅事件的触发函数
self.pul()
# print('me')
cl.subscribe(self.topic)
self.textEdit.append('成功订阅事件:' + ' ' + self.topic + ' ' + '时间:' + self.time)
@Slot()
def on_Unsubscribe_clicked(self): #取消订阅的触发函数
cl.unsubscribe(topic=self.topic)
self.textEdit.append('取消订阅事件:' + ' ' + self.topic + ' ' + '时间:' + self.time)
@Slot()
def on_Release_clicked(self): #发布事件的触发函数
self.Release_topic = self.Topic.text()
self.Release_content = self.Release_new.toPlainText()
cl.publish(topic=self.Release_topic, payload=self.Release_content)
self.textEdit_2.append(
'已发布事件:' + ' ' + self.Release_topic + ' ' + '消息:' + self.Release_content + " " + '时间：' + self.time)
# print('me')
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
view = View() #对UI进行实例化
view.setupUi(view)
view.show() #显示窗口和添加的部件
view.setWindowTitle("MQTT测试V1.0") #设置UI的名字
app.setWindowIcon(QIcon('logo.png')) #添加图标
sys.exit(app.exec()) #对事件进行循环
如果后面的图标自己改一下哈，还有一个问题就是我之前是只测试我自己的云服务的，所以我就直接写死了一个ip了，大家记得在代码里面换回自己的云服务器IP，不然用的就是我的。而且我还打包成一个软件了，只需双击打开就可以了，这部分就是用的pyinstall去打包的，教程网上很多。
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