PyQT实战小项目---筑龙网批量下载链接

PyQT是Python桌面GUI的一个非常流行的框架。可以做很多界面优美的库
上代码：

# -*- coding: utf-8 -*-# Form implementation generated from reading ui file 'ZLTool.ui'
#
# Created by: PyQt5 UI code generator 5.13.0
#
# WARNING! All changes made in this file will be lost!from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import QMessageBox,QFileDialog
import os
import time
import requests
import _thread
from threading import Threadimport sys
from PyQt5.QtWidgets import QApplication, QMainWindowdef convertCookie(cookie_val):# 转成字典格式return dict(map(lambda x: x.split('='), cookie_val.split(";")))def downloadFile(name, url, login_cookie):''':param name:下载保存的名称:param url: 下载链接:return:'''headers = {'Proxy-Connection': 'keep-alive'}r = requests.get(url, stream=True, headers=headers,cookies = login_cookie)length = float(r.headers['content-length'])f = open(name, 'wb')count = 0count_tmp = 0time1 = time.time()for chunk in r.iter_content(chunk_size=512):if chunk:f.write(chunk)count += len(chunk)if time.time() - time1 > 2:p = count / length * 100speed = (count - count_tmp) / 1024 / 1024 / 2count_tmp = countprint(name + ': ' + formatFloat(p) + '%' + ' Speed: ' + formatFloat(speed) + 'M/S')time1 = time.time()f.close()print('下载成功！')def formatFloat(num):return '{:.2f}'.format(num)class Ui_MainWindow(object):def __init__(self):# 相关变量定义self.single_link = '' #单线程 单条链接self.more_link = [''] #批量下载self.cookies = '' #cookie必填项self.file_path = '' #多链接文件形式下载def setupUi(self, MainWindow):MainWindow.setObjectName("MainWindow")MainWindow.resize(420, 450)MainWindow.setMinimumSize(QtCore.QSize(420, 450))MainWindow.setMaximumSize(QtCore.QSize(420, 450))self.centralwidget = QtWidgets.QWidget(MainWindow)self.centralwidget.setObjectName("centralwidget")self.horizontalLayoutWidget = QtWidgets.QWidget(self.centralwidget)self.horizontalLayoutWidget.setGeometry(QtCore.QRect(10, 10, 401, 31))self.horizontalLayoutWidget.setObjectName("horizontalLayoutWidget")self.horizontalLayout = QtWidgets.QHBoxLayout(self.horizontalLayoutWidget)self.horizontalLayout.setContentsMargins(0, 0, 0, 0)self.horizontalLayout.setObjectName("horizontalLayout")self.lineEdit_SetCookie = QtWidgets.QLineEdit(self.horizontalLayoutWidget)self.lineEdit_SetCookie.setObjectName("lineEdit_SetCookie")self.horizontalLayout.addWidget(self.lineEdit_SetCookie)self.btn_SetCookie = QtWidgets.QPushButton(self.horizontalLayoutWidget)self.btn_SetCookie.setObjectName("btn_SetCookie")self.btn_SetCookie.clicked.connect(self.checkCookie)self.horizontalLayout.addWidget(self.btn_SetCookie)self.horizontalLayoutWidget_2 = QtWidgets.QWidget(self.centralwidget)self.horizontalLayoutWidget_2.setGeometry(QtCore.QRect(10, 60, 401, 31))self.horizontalLayoutWidget_2.setObjectName("horizontalLayoutWidget_2")self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.horizontalLayoutWidget_2)self.horizontalLayout_2.setContentsMargins(0, 0, 0, 0)self.horizontalLayout_2.setObjectName("horizontalLayout_2")self.lineEdit_AddLink = QtWidgets.QLineEdit(self.horizontalLayoutWidget_2)self.lineEdit_AddLink.setObjectName("lineEdit_AddLink")self.horizontalLayout_2.addWidget(self.lineEdit_AddLink)self.btn_AddSingleLink = QtWidgets.QPushButton(self.horizontalLayoutWidget_2)self.btn_AddSingleLink.setObjectName("btn_AddSingleLink")self.btn_AddSingleLink.clicked.connect(self.checkSingleLink)self.horizontalLayout_2.addWidget(self.btn_AddSingleLink)self.verticalLayoutWidget = QtWidgets.QWidget(self.centralwidget)self.verticalLayoutWidget.setGeometry(QtCore.QRect(10, 100, 401, 71))self.verticalLayoutWidget.setObjectName("verticalLayoutWidget")self.verticalLayout = QtWidgets.QVBoxLayout(self.verticalLayoutWidget)self.verticalLayout.setContentsMargins(0, 0, 0, 0)self.verticalLayout.setObjectName("verticalLayout")self.btn_AddMoreLink = QtWidgets.QPushButton(self.verticalLayoutWidget)self.btn_AddMoreLink.setObjectName("btn_AddMoreLink")self.btn_AddMoreLink.clicked.connect(self.addMoreLinkFile)self.verticalLayout.addWidget(self.btn_AddMoreLink)self.label = QtWidgets.QLabel(self.verticalLayoutWidget)font = QtGui.QFont()font.setUnderline(False)font.setStrikeOut(False)self.label.setFont(font)self.label.setObjectName("label")self.verticalLayout.addWidget(self.label)self.label_3 = QtWidgets.QLabel(self.verticalLayoutWidget)self.label_3.setText("")self.label_3.setObjectName("label_3")self.verticalLayout.addWidget(self.label_3)self.btn_BeginDownload = QtWidgets.QPushButton(self.centralwidget)self.btn_BeginDownload.setGeometry(QtCore.QRect(130, 360, 141, 41))self.btn_BeginDownload.setObjectName("btn_BeginDownload")self.btn_BeginDownload.clicked.connect(self.DownloadAll)self.label_2 = QtWidgets.QLabel(self.centralwidget)self.label_2.setGeometry(QtCore.QRect(100, 410, 251, 16))self.label_2.setObjectName("label_2")self.label_4 = QtWidgets.QLabel(self.centralwidget)self.label_4.setGeometry(QtCore.QRect(10, 300, 300, 20))self.label_4.setObjectName("label_4")self.textEdit_AddMoreLink = QtWidgets.QTextEdit(self.centralwidget)self.textEdit_AddMoreLink.setGeometry(QtCore.QRect(180, 190, 231, 161))self.textEdit_AddMoreLink.setObjectName("textEdit_AddMoreLink")MainWindow.setCentralWidget(self.centralwidget)self.retranslateUi(MainWindow)QtCore.QMetaObject.connectSlotsByName(MainWindow)def retranslateUi(self, MainWindow):_translate = QtCore.QCoreApplication.translateMainWindow.setWindowTitle(_translate("MainWindow", "筑龙网批量下载工具"))self.btn_SetCookie.setText(_translate("MainWindow", "设置Cookie"))self.btn_AddSingleLink.setText(_translate("MainWindow", "单条链接下载"))self.btn_AddMoreLink.setText(_translate("MainWindow", "添加多条链接(txt文本方法导入)"))self.label.setText(_translate("MainWindow", "          强烈推荐使用txt文本导入,采用多线程进行下载，安全可靠."))self.btn_BeginDownload.setText(_translate("MainWindow", "开始下载"))self.label_2.setText(_translate("MainWindow", "Tip:默认保存路径为本exe文件同级目录下."))self.label_4.setText(_translate("MainWindow", "添加多条链接(输入框方法)："))def checkCookie(self):# 检查cookie是否输入self.cookies = self.lineEdit_SetCookie.text()if self.cookies == '':QMessageBox.about(None, "检查cookie", "当前cookie为空,请在左边输入cookie！")else:QMessageBox.about(None, "检查cookie", "cookie写入成功！")def checkSingleLink(self):self.cookies = self.lineEdit_SetCookie.text()if self.cookies == '':QMessageBox.about(None, "检查cookie", "当前cookie为空,请先输入cookie！")returnself.single_link = self.lineEdit_AddLink.text()if self.single_link == '':QMessageBox.about(None, "检查链接", "当前链接未输入")else:QMessageBox.about(None, "检查链接", "当前链接输入成功，现在开始下载")cur_cookie = convertCookie(self.cookies)#downloadFile(self.single_link[-5:]+".pdf",self.single_link,cur_cookie)_thread.start_new_thread(downloadFile,(self.single_link[-5:]+".pdf",self.single_link,cur_cookie))def addMoreLinkFile(self):# 检查cookie是否输入self.cookies = self.lineEdit_SetCookie.text()if self.cookies == '':QMessageBox.about(None, "检查cookie", "当前cookie为空,请先输入cookie！")returnfileName, filetype = QFileDialog.getOpenFileName(None, "选择文件", "/", "Text Files (*.txt)")self.file_path = fileNameif self.file_path == '':QMessageBox.about(None, "选择txt文件", "暂时未选择txt文件，请重新选择")returnelse:f = open(self.file_path)path_name_list =''for line in f:if line !='':path_name = line.strip()[-5:]+'.pdf'#downloadFile()path_name_list+=linef.close() #关闭self.textEdit_AddMoreLink.setPlainText(path_name_list) #设置到文本框中。def DownloadAll(self):# 开始下载self.cookies = self.lineEdit_SetCookie.text()if self.cookies == '':QMessageBox.about(None, "检查cookie", "当前cookie为空,请先输入cookie！")returncookie_dic = convertCookie(self.cookies) #转换成字典str_links = self.textEdit_AddMoreLink.toPlainText()if str_links == '':QMessageBox.about(None, "检查链接", "当前链接未输入")returnlink_list = str_links.split('\n') #分隔符for link in link_list:if link!='':link_str = link.strip()if link_str == '':continuelink_num = link_str[-6:]link_name = link_num+'.pdf'_thread.start_new_thread(downloadFile,(link_name,link_str,cookie_dic))print('所有文件正在下载!')if self.file_path != '':print('OK, Just Download')if __name__ == '__main__':app = QApplication(sys.argv)MainWindow = QMainWindow()ui = Ui_MainWindow()ui.setupUi(MainWindow)MainWindow.show()sys.exit(app.exec_())

运行截图：

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