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, qtwidgetsfrom event import eventclassclass 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)
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#coding:u8import timefrom pyqt5.qtwidgets import qtablewidgetitemfrom trainservice import trainserviceclass 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）
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#coding_url:u8import requestsimport jsonclass 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服务器之家。
原文链接：https://blog.csdn.net/weixin_38283159/article/details/86490978
