PyQt5+requests实现车票查询工具

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。