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)
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# -*- 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_())
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2、eventclass.py(自定义槽函数类)
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#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
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3、trainservice.py（爬虫类）
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#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()
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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服务器之家。
原文链接：https://blog.csdn.net/weixin_38283159/article/details/86490978