pyqt5利用pyqtDesigner实现登录界面
本文实例为大家分享了pyqt5利用pyqtDesigner实现登录界面的具体代码，供大家参考，具体内容如下
为便于操作界面和逻辑分离
逻辑类：
importsys
importpymysql
fromloginUIimport*//导入
fromPyQt5.QtWidgetsimport*
fromPyQt5importQtWidgets,QtCore,QtGui
fromPyQt5.QtCoreimport*
fromPyQt5.QtGuiimport
classLogin(QtWidgets.QDialog):
def__init__(self):
super(Login,self).__init__()
self.ui=Ui_login_Ui()
self.ui.setupUi(self)
#self.setMinimumSize(QtCore.QSize(400,200))#控制缩放范围
#self.setMaximumSize(QtCore.QSize(400,200))
self.setWindowTitle("欢迎使用停车场管理系统")
self.setFixedSize(self.width(),self.height())
self.ui.labelTip.hide()
self.ui.labelTip.setText("密码或用户名不能为空!")
#设置label字体
labelFont=QFont()
labelFont.setPixelSize(15)
#设置动态背景
self.gif=QMovie('bg2.gif')
self.ui.label_2.setMovie(self.gif)
self.gif.start()
#这在label属性
self.ui.labelTip.setStyleSheet(
"QLabel{color:red;font-size:12px;font-weight:bold;font-family:Romantimes;}"
)
self.ui.userLabel.setStyleSheet("QLabel{background:white;}"
"QLabel{color:rgb(100,100,100,250);font-size:15px;font-weight:bold;font-family:Romantimes;}"
"QLabel:hover{color:rgb(300,300,300,120);}")
self.ui.pwdlabel.setStyleSheet("QLabel{background:white;}"
"QLabel{color:rgb(100,100,100,250);font-size:15px;font-weight:bold;font-family:Romantimes;}"
"QLabel:hover{color:rgb(300,300,300,120);}")
self.ui.label.setStyleSheet("QLabel{background:white;}"
"QLabel{color:rgb(100,100,100,250);font-size:15px;font-weight:bold;font-family:Romantimes;}"
"QLabel:hover{color:rgb(300,300,300,120);}")
self.ui.loginButton.setStyleSheet("QPushButton{color:black}"
"QPushButton:hover{color:red}"
"QPushButton{background-color:lightblue}"
"QPushButton{border:2px}"
"QPushButton{border-radius:10px}"
"QPushButton{padding:2px4px}")
self.ui.registerButton.setStyleSheet("QPushButton{color:black}"
"QPushButton:hover{color:red}"
"QPushButton{background-color:lightgreen}"
"QPushButton{border:2px}"
"QPushButton{border-radius:10px}"
"QPushButton{padding:2px4px}")
palette=QPalette()
icon=QPixmap('bg2.gif').scaled(800,600)
palette.setBrush(self.backgroundRole(),QBrush(icon))
self.setPalette(palette)
self.ui.userLabel.setFont(labelFont)
self.ui.pwdlabel.setFont(labelFont)
self.ui.label.setFont(labelFont)
#设置控件尺寸
#self.ui.userlineEdit.setFrame(False)
#self.ui.pwdlineEdit.setFrame(False)
self.ui.pwdlineEdit.setEchoMode(QLineEdit.Password)#输入框设为密码模式
self.ui.pwdlineEdit.setClearButtonEnabled(True)
self.ui.userlineEdit.setClearButtonEnabled(True)
self.ui.userlineEdit.setFixedWidth(190)
self.ui.userlineEdit.setFixedHeight(30)
self.ui.pwdlineEdit.setFixedWidth(190)
self.ui.pwdlineEdit.setFixedHeight(30)
self.ui.comboBox.setFixedWidth(100)
self.ui.comboBox.setFixedHeight(28)
self.ui.loginButton.setFixedSize(75,28)
self.ui.registerButton.setFixedSize(75,28)
self.ui.loginButton.setShortcut('Enter')#shortcutkey
#登陆的槽函数登陆按钮最好写在init的析构函数中，避免链接多次产生异常
self.ui.loginButton.clicked.connect(self.slotLogin)
self.ui.registerButton.clicked.connect(self.slotRegister)
self.ui.pushButton.clicked.connect(self.findPwd)
name=self.ui.userlineEdit.text()
pwd=self.ui.pwdlineEdit.text()
identity=self.ui.comboBox.currentIndex()
identity=str(identity)
sql="select*fromadministraterwhereusername='"+name+"'andpassword='"+pwd+"'andidentity='"+identity+"'"
db=PyMySQLHelper()
db.selectALL(sql)
defkeyPressEvent(self,event):
ifevent.key()==QtCore.Qt.Key_Enter:
self.slotLogin()
deffindPwd(self):
#self.accept()
self.u=FPwd_ui()
self.u.show()
#self.ui.exec()
defslotLogin(self):
##获得登录输入
name=self.ui.userlineEdit.text()
pwd=self.ui.pwdlineEdit.text()
print(name)
db=PyMySQLHelper()
identity=self.ui.comboBox.currentIndex()#获取下标
identity=str(identity)
ifname!=''andpwd!='':
ifidentity=='0':
sql="select*fromadministraterwhereusername='"+name+"'and"\
"password='"+pwd+"'andidentity='"+identity+"'"
print(sql)
#cursor.execute(sql)
#results=cursor.fetchall()
results=db.selectALL(sql)
ifresults:
self.ui1=Finance()
#self.ui1.exec()
self.ui1.show()
self.close()
else:
OK=QMessageBox.warning(self,("警告"),("""账号或密码错误！"""))
#cursor.close()
#conn.close()
elifidentity=='1':
sql="select*fromadministraterwhereusername='"+name+"'and"\
"password='"+pwd+"'andidentity='"+identity+"'"
print(sql)
#cursor.execute(sql)
#results=cursor.fetchall()
results=db.selectALL(sql)
ifresults:
self.ui2=InfoManage()
self.ui2.show()
self.close()
else:
OK=QMessageBox.warning(self,("警告"),("""账号或密码错误！"""))
elifidentity=='2':
sql="select*fromadministraterwhereusername='"+name+"'and"\
"password='"+pwd+"'andidentity='"+identity+"'"
print(sql)
results=db.selectALL(sql)
#print(identity)
ifresults:
self.uu=SeatManage()
self.uu.exec()
self.close()
else:
OK=QMessageBox.warning(self,("警告"),("""账号或密码错误！"""))
elifname=='admin'andpwd=='123'andidentity=='3':
self.a=Admin()
self.a.show()
self.close()
else:
ifname=='':
OK=QMessageBox.warning(self,("警告"),("""请输入账号！"""))
ifpwd=='':
OK=QMessageBox.warning(self,("警告"),("""请输入密码！"""))
#cursor.close()
#conn.close()
defslotRegister(self):
self.i=reUi()#self.i的窗口命名不能重复
self.i.exec_()
if__name__=='__main__':
app=QtWidgets.QApplication(sys.argv)
my=Login()
my.show()
sys.exit(app.exec_())
界面类：
fromPyQt5importQtCore,QtGui,QtWidgets
classUi_login_Ui(object):
defsetupUi(self,login_Ui):
login_Ui.setObjectName("login_Ui")
login_Ui.resize(581,533)
self.gridLayoutWidget=QtWidgets.QWidget(login_Ui)
self.gridLayoutWidget.setGeometry(QtCore.QRect(160,330,295,141))
self.gridLayoutWidget.setObjectName("gridLayoutWidget")
self.gridLayout=QtWidgets.QGridLayout(self.gridLayoutWidget)
self.gridLayout.setContentsMargins(0,0,0,0)
self.gridLayout.setObjectName("gridLayout")
self.horizontalLayout_2=QtWidgets.QHBoxLayout()
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.loginButton=QtWidgets.QPushButton(self.gridLayoutWidget)
self.loginButton.setObjectName("loginButton")
self.horizontalLayout_2.addWidget(self.loginButton)
self.registerButton=QtWidgets.QPushButton(self.gridLayoutWidget)
self.registerButton.setObjectName("registerButton")
self.horizontalLayout_2.addWidget(self.registerButton)
self.pushButton=QtWidgets.QPushButton(self.gridLayoutWidget)
self.pushButton.setObjectName("pushButton")
self.horizontalLayout_2.addWidget(self.pushButton)
self.gridLayout.addLayout(self.horizontalLayout_2,4,1,1,1)
self.userlineEdit=QtWidgets.QLineEdit(self.gridLayoutWidget)
self.userlineEdit.setObjectName("userlineEdit")
self.gridLayout.addWidget(self.userlineEdit,0,1,1,1)
self.userLabel=QtWidgets.QLabel(self.gridLayoutWidget)
self.userLabel.setObjectName("userLabel")
self.gridLayout.addWidget(self.userLabel,0,0,1,1)
self.labelTip=QtWidgets.QLabel(self.gridLayoutWidget)
self.labelTip.setObjectName("labelTip")
self.gridLayout.addWidget(self.labelTip,3,1,1,1)
self.pwdlineEdit=QtWidgets.QLineEdit(self.gridLayoutWidget)
self.pwdlineEdit.setObjectName("pwdlineEdit")
self.gridLayout.addWidget(self.pwdlineEdit,1,1,1,1)
self.pwdlabel=QtWidgets.QLabel(self.gridLayoutWidget)
self.pwdlabel.setObjectName("pwdlabel")
self.gridLayout.addWidget(self.pwdlabel,1,0,1,1)
self.comboBox=QtWidgets.QComboBox(self.gridLayoutWidget)
self.comboBox.setObjectName("comboBox")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.comboBox.addItem("")
self.gridLayout.addWidget(self.comboBox,2,1,1,1)
self.label=QtWidgets.QLabel(self.gridLayoutWidget)
self.label.setObjectName("label")
self.gridLayout.addWidget(self.label,2,0,1,1)
self.label_2=QtWidgets.QLabel(login_Ui)
self.label_2.setGeometry(QtCore.QRect(-10,0,601,321))
self.label_2.setText("")
self.label_2.setObjectName("label_2")
self.retranslateUi(login_Ui)
QtCore.QMetaObject.connectSlotsByName(login_Ui)
defretranslateUi(self,login_Ui):
_translate=QtCore.QCoreApplication.translate
login_Ui.setWindowTitle(_translate("login_Ui","Form"))
self.loginButton.setText(_translate("login_Ui","登陆"))
self.registerButton.setText(_translate("login_Ui","注册"))
self.pushButton.setText(_translate("login_Ui","找回密码"))
self.userLabel.setText(_translate("login_Ui","账户"))
self.labelTip.setText(_translate("login_Ui","密码或用户名错误"))
self.pwdlabel.setText(_translate("login_Ui","密码"))
self.comboBox.setItemText(0,_translate("login_Ui","财务管理员"))
self.comboBox.setItemText(1,_translate("login_Ui","信息管理员"))
self.comboBox.setItemText(2,_translate("login_Ui","停车场管理员"))
self.comboBox.setItemText(3,_translate("login_Ui","超级管理员"))
self.label.setText(_translate("login_Ui","请选择"))
具体代码：pyqt5实现登录界面
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