QT使用pyqtSignal跳转窗口问题
登录页面代码：import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
import qdarkstyle
import hashlib
from db.db import DB
class SignInWidget(QWidget):
is_admin_signal = pyqtSignal()
is_student_signal = pyqtSignal(str)
def __init__(self):
super(SignInWidget, self).__init__()
self.resize(900, 600)
self.setWindowTitle("图书馆管理系统")
self.setUpUI()
def setUpUI(self):
self.Vlayout = QVBoxLayout(self)
self.Hlayout1 = QHBoxLayout()
self.Hlayout2 = QHBoxLayout()
self.formlayout = QFormLayout()
self.label1 = QLabel("学号: ")
labelFont = QFont()
labelFont.setPixelSize(18)
lineEditFont = QFont()
lineEditFont.setPixelSize(16)
self.label1.setFont(labelFont)
self.lineEdit1 = QLineEdit()
self.lineEdit1.setFixedHeight(32)
self.lineEdit1.setFixedWidth(200)
self.lineEdit1.setFont(lineEditFont)
self.lineEdit1.setMaxLength(16)
self.formlayout.addRow(self.label1, self.lineEdit1)
self.label2 = QLabel("密码: ")
self.label2.setFont(labelFont)
self.lineEdit2 = QLineEdit()
self.lineEdit2.setFixedHeight(32)
self.lineEdit2.setFixedWidth(200)
self.lineEdit2.setMaxLength(16)
# 设置验证
reg = QRegExp("PB{8}")
pValidator = QRegExpValidator(self)
pValidator.setRegExp(reg)
self.lineEdit1.setValidator(pValidator)
reg = QRegExp("+$")
pValidator.setRegExp(reg)
self.lineEdit2.setValidator(pValidator)
passwordFont = QFont()
passwordFont.setPixelSize(10)
self.lineEdit2.setFont(passwordFont)
self.lineEdit2.setEchoMode(QLineEdit.Password)
self.formlayout.addRow(self.label2, self.lineEdit2)
self.signIn = QPushButton("登 录")
self.signIn.setFixedWidth(160)
self.signIn.setFixedHeight(40)
self.signIn.setFont(labelFont)
self.formlayout.addRow("", self.signIn)
self.label = QLabel("图书管理系统")
fontlabel = QFont()
fontlabel.setPixelSize(30)
self.label.setFixedWidth(200)
# self.label.setFixedHeight(80)
self.label.setFont(fontlabel)
self.Hlayout1.addWidget(self.label, Qt.AlignCenter)
self.widget1 = QWidget()
self.widget1.setLayout(self.Hlayout1)
self.widget2 = QWidget()
self.widget2.setFixedWidth(300)
self.widget2.setFixedHeight(150)
self.widget2.setLayout(self.formlayout)
self.Hlayout2.addWidget(self.widget2, Qt.AlignCenter)
self.widget = QWidget()
self.widget.setLayout(self.Hlayout2)
self.Vlayout.addWidget(self.widget1)
self.Vlayout.addWidget(self.widget, Qt.AlignTop)
self.signIn.clicked.connect(self.signInCheck)
self.lineEdit2.returnPressed.connect(self.signInCheck)
self.lineEdit1.returnPressed.connect(self.signInCheck)
def signInCheck(self):
number_Id = self.lineEdit1.text()
password = self.lineEdit2.text()
if number_Id == "" or password == "":
print(QMessageBox.warning(self, "警告", "学号和密码不可为空!", QMessageBox.Yes, QMessageBox.Yes))
return
# 打开数据库连接
db = DB()
count, res = db.query_super(table_name='user', column_name='StudentId', condition=number_Id)
print(count, res)
hash = hashlib.md5()
hash.update(password.encode(encoding='utf-8'))
if count == 0:
print(QMessageBox.information(self, "提示", "该账号不存在!", QMessageBox.Yes, QMessageBox.Yes))
else:
if number_Id == res and hash.hexdigest() == res:
if res == '0':
self.is_admin_signal.emit()
else:
self.is_student_signal.emit(number_Id)
else:
print(QMessageBox.information(self, "提示", "密码错误!", QMessageBox.Yes, QMessageBox.Yes))
return
if __name__ == "__main__":
app = QApplication(sys.argv)
app.setWindowIcon(QIcon("./images/MainWindow_1.png"))
app.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())
mainMindow = SignInWidget()
mainMindow.show()
sys.exit(app.exec_())
学生主页：
import sys
from PyQt5 import sip
from PyQt5.QtWidgets import *
from PyQt5.QtGui import QIcon, QFont
from PyQt5.QtCore import Qt
import qdarkstyle
from BookStorageViewer import BookStorageViewer
from borrowBookDialog import borrowBookDialog
from returnBookDialog import returnBookDialog
from BorrowStatusViewer import BorrowStatusViewer
class StudentHome(QWidget):
def __init__(self, studentId):
super(StudentHome, self).__init__()
self.StudentId = studentId
self.resize(700, 600)
self.setWindowTitle("欢迎使用图书馆管理系统")
self.setUpUI()
def setUpUI(self):
# 总布局
self.layout = QHBoxLayout(self)
# 按钮布局
self.buttonLayout = QVBoxLayout()
# 按钮
self.borrowBookButton = QPushButton("借书")
self.returnBookButton = QPushButton("还书")
self.myBookStatus = QPushButton("借阅状态")
self.allBookButton = QPushButton("所有书籍")
self.buttonLayout.addWidget(self.borrowBookButton)
self.buttonLayout.addWidget(self.returnBookButton)
self.buttonLayout.addWidget(self.myBookStatus)
self.buttonLayout.addWidget(self.allBookButton)
self.borrowBookButton.setFixedWidth(100)
self.borrowBookButton.setFixedHeight(42)
self.returnBookButton.setFixedWidth(100)
self.returnBookButton.setFixedHeight(42)
self.myBookStatus.setFixedWidth(100)
self.myBookStatus.setFixedHeight(42)
self.allBookButton.setFixedWidth(100)
self.allBookButton.setFixedHeight(42)
font = QFont()
font.setPixelSize(16)
self.borrowBookButton.setFont(font)
self.returnBookButton.setFont(font)
self.myBookStatus.setFont(font)
self.allBookButton.setFont(font)
self.storageView = BookStorageViewer()
self.borrowStatusView = BorrowStatusViewer(self.StudentId)
self.allBookButton.setEnabled(False)
self.layout.addLayout(self.buttonLayout)
self.layout.addWidget(self.storageView)
self.borrowBookButton.clicked.connect(self.borrowBookButtonClicked)
self.returnBookButton.clicked.connect(self.returnBookButtonClicked)
self.myBookStatus.clicked.connect(self.myBookStatusClicked)
self.allBookButton.clicked.connect(self.allBookButtonClicked)
def borrowBookButtonClicked(self):
borrowDialog = borrowBookDialog(self.StudentId, self)
borrowDialog.borrow_book_success_signal.connect(self.borrowStatusView.borrowedQuery)
borrowDialog.borrow_book_success_signal.connect(self.storageView.searchButtonClicked)
borrowDialog.show()
borrowDialog.exec_()
return
def returnBookButtonClicked(self):
returnDialog = returnBookDialog(self.StudentId, self)
returnDialog.return_book_success_signal.connect(self.borrowStatusView.returnedQuery)
returnDialog.return_book_success_signal.connect(self.borrowStatusView.borrowedQuery)
returnDialog.return_book_success_signal.connect(self.storageView.searchButtonClicked)
returnDialog.show()
returnDialog.exec_()
def myBookStatusClicked(self):
self.layout.removeWidget(self.storageView)
sip.delete(self.storageView)
self.storageView = BookStorageViewer()
self.borrowStatusView = BorrowStatusViewer(self.StudentId)
self.layout.addWidget(self.borrowStatusView)
self.allBookButton.setEnabled(True)
self.myBookStatus.setEnabled(False)
return
def allBookButtonClicked(self):
self.layout.removeWidget(self.borrowStatusView)
sip.delete(self.borrowStatusView)
self.borrowStatusView = BorrowStatusViewer(self.StudentId)
self.storageView = BookStorageViewer()
self.layout.addWidget(self.storageView)
self.allBookButton.setEnabled(False)
self.myBookStatus.setEnabled(True)
return
if __name__ == '__main__':
app = QApplication(sys.argv)
app.setWindowIcon(QIcon("./images/MainWindow_1.png"))
app.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())
mainMindow = StudentHome("123456")
mainMindow.show()
sys.exit(app.exec_())
管理员主页：
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
import qdarkstyle
from addBookDialog import addBookDialog
from dropBookDialog import dropBookDialog
from BookStorageViewer import BookStorageViewer
from UserManage import UserManage
class AdminHome(QWidget):
def __init__(self):
super().__init__()
self.setUpUI()
def setUpUI(self):
self.resize(900, 600)
self.setWindowTitle("欢迎使用图书馆管理系统")
self.layout = QHBoxLayout()
self.buttonlayout = QVBoxLayout()
self.setLayout(self.layout)
font = QFont()
font.setPixelSize(16)
self.userManageButton = QPushButton("用户管理")
self.addBookButton = QPushButton("添加书籍")
self.dropBookButton = QPushButton("淘汰书籍")
self.userManageButton.setFont(font)
self.addBookButton.setFont(font)
self.dropBookButton.setFont(font)
self.userManageButton.setFixedWidth(100)
self.userManageButton.setFixedHeight(42)
self.addBookButton.setFixedWidth(100)
self.addBookButton.setFixedHeight(42)
self.dropBookButton.setFixedWidth(100)
self.dropBookButton.setFixedHeight(42)
self.buttonlayout.addWidget(self.addBookButton)
self.buttonlayout.addWidget(self.dropBookButton)
self.buttonlayout.addWidget(self.userManageButton)
self.layout.addLayout(self.buttonlayout)
self.storageView = BookStorageViewer()
self.layout.addWidget(self.storageView)
self.addBookButton.clicked.connect(self.addBookButtonClicked)
self.dropBookButton.clicked.connect(self.dropBookButtonClicked)
self.userManageButton.clicked.connect(self.userManage)
def addBookButtonClicked(self):
addDialog = addBookDialog(self)
addDialog.add_book_success_signal.connect(self.storageView.searchButtonClicked)
addDialog.show()
addDialog.exec_()
def dropBookButtonClicked(self):
dropDialog = dropBookDialog(self)
dropDialog.drop_book_successful_signal.connect(self.storageView.searchButtonClicked)
dropDialog.show()
dropDialog.exec_()
def userManage(self):
UserDelete = UserManage(self)
UserDelete.show()
UserDelete.exec_()
if __name__ == "__main__":
app = QApplication(sys.argv)
app.setWindowIcon(QIcon("./images/MainWindow_1.png"))
app.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())
mainMindow = AdminHome()
mainMindow.show()
sys.exit(app.exec_())
数据库文件：
CREATE TABLE `user` (
`id` varchar(64) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
`StudentId` varchar(16) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
`Name` varchar(20) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
`Password` char(32) COLLATE utf8_unicode_ci NOT NULL,
`IsAdmin` bit(1) NOT NULL DEFAULT b'0',
`TimesBorrowed` int(11) NOT NULL DEFAULT '0',
`NumBorrowed` int(11) NOT NULL DEFAULT '0',
PRIMARY KEY (`id`),
UNIQUE KEY `Unique_studentID` (`StudentId`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES ('01aa6e87-eefc-41b6-8627-f426e75cb2d1', '201725210151', 'admin', 'e10adc3949ba59abbe56e057f20f883e', '0', '0', '0');
如何在登录页面登录成功后，跳转到其它两个页面；
跳转到其他页面，其实就是窗口的隐藏和显示吧
另外加一个__init__.py，来设置，主窗口，和其他窗口的显示隐藏的代码 窗口实例不是有show和close方法么 {:10_277:}当初我自己写的是这么用的
检测先谈一个对话框 对话框有选项检测时学生还是管理员
https://s1.ax1x.com/2020/10/10/06e2Mn.png
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