PyQt5+requests实现一个车票查询工具，供大家参考，具体内容如下

结构图

效果图

思路

1、search(QPushButton)点击信号(clicked)连接到自定义的槽函数(event.search)

2、槽函数(event.search)接收四个参数：QTableWidget对象的引用、两个QLabel中的内容(站台名称)、QDateEdit格式化日期

3、槽函数(event.search)调用爬虫类(TrainService)获取车次信息，添加到QTableWidget对象中。

代码

1、ui.py(ui界面)

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'E:\Python\Qt\ui_0.ui'

#

# Created by: PyQt5 UI code generator 5.11.2

#

# WARNING! All changes made in this file will be lost!

from PyQt5 import QtCore, QtGui, QtWidgets

from Event import EventClass

class Ui_MainWindow(object):

def setupUi(self, MainWindow):

event=EventClass()

MainWindow.setObjectName("MainWindow")

MainWindow.resize(793, 604)

MainWindow.setStyleSheet("font: 10pt \"Microsoft YaHei UI\";")

self.centralwidget = QtWidgets.QWidget(MainWindow)

self.centralwidget.setObjectName("centralwidget")

self.widget = QtWidgets.QWidget(self.centralwidget)

self.widget.setGeometry(QtCore.QRect(0, 0, 791, 43))

self.widget.setObjectName("widget")

self.horizontalLayout = QtWidgets.QHBoxLayout(self.widget)

self.horizontalLayout.setSizeConstraint(QtWidgets.QLayout.SetNoConstraint)

self.horizontalLayout.setContentsMargins(10, 1, 1, 3)

self.horizontalLayout.setSpacing(15)

self.horizontalLayout.setObjectName("horizontalLayout")

self.label = QtWidgets.QLabel(self.widget)

self.label.setObjectName("label")

self.horizontalLayout.addWidget(self.label)

self.lineEdit = QtWidgets.QLineEdit(self.widget)

self.lineEdit.setMaximumSize(QtCore.QSize(742, 16777215))

self.lineEdit.setObjectName("lineEdit")

self.horizontalLayout.addWidget(self.lineEdit)

self.label_2 = QtWidgets.QLabel(self.widget)

self.label_2.setObjectName("label_2")

self.horizontalLayout.addWidget(self.label_2)

self.lineEdit_2 = QtWidgets.QLineEdit(self.widget)

self.lineEdit_2.setObjectName("lineEdit_2")

self.horizontalLayout.addWidget(self.lineEdit_2)

self.dateEdit = QtWidgets.QDateEdit(self.widget)

self.dateEdit.setDate(QtCore.QDate(2019, 1, 1))

self.dateEdit.setObjectName("dateEdit")

self.horizontalLayout.addWidget(self.dateEdit)

self.pushButton = QtWidgets.QPushButton(self.widget)

self.pushButton.setObjectName("pushButton")

self.horizontalLayout.addWidget(self.pushButton)

self.scrollArea = QtWidgets.QScrollArea(self.centralwidget)

self.scrollArea.setGeometry(QtCore.QRect(0, 40, 791, 561))

self.scrollArea.setWidgetResizable(True)

self.scrollArea.setObjectName("scrollArea")

self.scrollAreaWidgetContents = QtWidgets.QWidget()

self.scrollAreaWidgetContents.setGeometry(QtCore.QRect(0, 0, 789, 559))

self.scrollAreaWidgetContents.setObjectName("scrollAreaWidgetContents")

self.tableWidget = QtWidgets.QTableWidget(self.scrollAreaWidgetContents)

self.tableWidget.setGeometry(QtCore.QRect(0, 0, 791, 561))

sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)

sizePolicy.setHorizontalStretch(0)

sizePolicy.setVerticalStretch(0)

sizePolicy.setHeightForWidth(self.tableWidget.sizePolicy().hasHeightForWidth())

self.tableWidget.setSizePolicy(sizePolicy)

self.tableWidget.setBaseSize(QtCore.QSize(0, 0))

self.tableWidget.setObjectName("tableWidget")

self.tableWidget.setColumnCount(5)

self.tableWidget.setRowCount(0)

item = QtWidgets.QTableWidgetItem()

self.tableWidget.setHorizontalHeaderItem(0, item)

item = QtWidgets.QTableWidgetItem()

self.tableWidget.setHorizontalHeaderItem(1, item)

item = QtWidgets.QTableWidgetItem()

self.tableWidget.setHorizontalHeaderItem(2, item)

item = QtWidgets.QTableWidgetItem()

self.tableWidget.setHorizontalHeaderItem(3, item)

item = QtWidgets.QTableWidgetItem()

self.tableWidget.setHorizontalHeaderItem(4, item)

self.tableWidget.horizontalHeader().setDefaultSectionSize(155)

self.tableWidget.verticalHeader().setDefaultSectionSize(47)

self.tableWidget.verticalHeader().setMinimumSectionSize(45)

self.line = QtWidgets.QFrame(self.scrollAreaWidgetContents)

self.line.setGeometry(QtCore.QRect(0, 23, 784, 31))

self.line.setToolTipDuration(0)

self.line.setLineWidth(1)

self.line.setFrameShape(QtWidgets.QFrame.HLine)

self.line.setFrameShadow(QtWidgets.QFrame.Sunken)

self.line.setObjectName("line")

self.scrollArea.setWidget(self.scrollAreaWidgetContents)

MainWindow.setCentralWidget(self.centralwidget)

self.retranslateUi(MainWindow)

self.pushButton.clicked.connect(lambda :event.search(self.tableWidget, self.lineEdit.text(), self.lineEdit_2.text(), self.dateEdit.date().toPyDate()))

QtCore.QMetaObject.connectSlotsByName(MainWindow)

def retranslateUi(self, MainWindow):

_translate = QtCore.QCoreApplication.translate

MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))

self.label.setText(_translate("MainWindow", "From"))

self.label_2.setText(_translate("MainWindow", "To"))

self.pushButton.setText(_translate("MainWindow", "search"))

item = self.tableWidget.horizontalHeaderItem(0)

item.setText(_translate("MainWindow", "车次"))

item = self.tableWidget.horizontalHeaderItem(1)

item.setText(_translate("MainWindow", "出发时间"))

item = self.tableWidget.horizontalHeaderItem(2)

item.setText(_translate("MainWindow", "到站时间"))

item = self.tableWidget.horizontalHeaderItem(3)

item.setText(_translate("MainWindow", "硬卧"))

item = self.tableWidget.horizontalHeaderItem(4)

item.setText(_translate("MainWindow", "硬座"))

if __name__ == "__main__":

import sys

app = QtWidgets.QApplication(sys.argv)

MainWindow = QtWidgets.QMainWindow()

ui = Ui_MainWindow()

ui.setupUi(MainWindow)

MainWindow.show()

sys.exit(app.exec_())

2、EventClass.py(自定义槽函数类)

#coding:u8

import time

from PyQt5.QtWidgets import QTableWidgetItem

from TrainService import TrainService

class EventClass(object):

def __init__(self):

self.trainService=TrainService()

pass

def search(self, table, From="北京", To="上海", Date=time.strftime("%Y-%m-%d", time.localtime())):

print("【{}】 form {} to {}".format(Date, From, To))

train_list=self.trainService.crawlTrainMess(From, To, Date)

print(table)

table.setRowCount(len(train_list))

for row, item in enumerate(train_list):

for col, i in enumerate(item):

if i is "":

i="0"

table.setItem(row, col, QTableWidgetItem(i))

pass

3、TrainService.py(爬虫类)

#coding_url:u8

import requests

import json

class TrainService(object):

def __init__(self):

with open("code.json", 'r') as file:

code=eval(file.read())

self.code=code

self.code_url="https://kyfw.12306.cn/otn/resources/js/framework/station_name.js?station_version=1.9002"

self.headers={"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.7 Safari/537.36"}

def crawlTrainMess(self,from_station,to_station,train_date):

self.url="https://kyfw.12306.cn/otn/leftTicket/queryZ?leftTicketDTO.train_date={}&leftTicketDTO.from_station={}&leftTicketDTO.to_station={}&purpose_codes=ADULT".format(train_date,self.code[from_station],self.code[to_station])

response=requests.get(self.url,headers=self.headers)

train_json=json.loads(response.text)

results=train_json['data']['result']

train_list=[]

for i in results:

temp=i.split('|')

train_list.append([temp[3], temp[8], temp[9], temp[25], temp[26]])

#print(train_list)

return train_list

def crawlCodeMess(self):

response=requests.get(self.code_url,headers=self.headers)

station_list=response.text.split('@')[1 :]

code={}

for i in station_list:

temp=i.split('|')

code[temp[1]]=temp[2]

#print(code)

with open("code.json", 'w') as file:

file.write(str(code))

if __name__=="__main__":

ts=TrainService()

ts.crawlCodeMess()

需要先跑 TrainService.py 获取到站点对应的代码信息code.json

然后在执行 ui.py

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。