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：

import sys
import pymysql
from loginui import *  //导入
from pyqt5.qtwidgets import *
from pyqt5 import qtwidgets, qtcore, qtgui
from pyqt5.qtcore import *
from pyqt5.qtgui import 
class login(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:roman times;}"
         )
  self.ui.userlabel.setstylesheet("qlabel{background:white;}"
     "qlabel{color:rgb(100,100,100,250);font-size:15px;font-weight:bold;font-family:roman times;}"
     "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:roman times;}"
     "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:roman times;}"
     "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:2px 4px}")
  self.ui.registerbutton.setstylesheet("qpushbutton{color:black}"
            "qpushbutton:hover{color:red}"
            "qpushbutton{background-color:lightgreen}"
            "qpushbutton{border:2px}"
            "qpushbutton{border-radius:10px}"
            "qpushbutton{padding:2px 4px}")
 
  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') # shortcut key
  # 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 * from administrater where username = '" + name + "' and password = '" + pwd + "' and identity= '"+ identity +"' "
  db = pymysqlhelper()
  db.selectall(sql)

 def keypressevent(self, event):
  if event.key() == qtcore.qt.key_enter:
   self.slotlogin()
 def findpwd(self):
  # self.accept()
  self.u = fpwd_ui()
  self.u.show()
  # self.ui.exec()
 def slotlogin(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)

  if name != '' and pwd != '':
   if identity == '0':

    sql = "select * from administrater where username = '" + name + "' and " \
                    "password = '" + pwd + "' and identity= '" + identity + "' "
    print(sql)
    # cursor.execute(sql)
    # results = cursor.fetchall()
    results = db.selectall(sql)

    if results:
     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()
   elif identity == '1':

    sql = "select * from administrater where username = '" + name + "' and " \
                    "password = '" + pwd + "' and identity= '" + identity + "' "
    print(sql)
    # cursor.execute(sql)
    # results = cursor.fetchall()
    results = db.selectall(sql)
    if results:
     self.ui2 = infomanage()
     self.ui2.show()
     self.close()
    else:
     ok = qmessagebox.warning(self, ("警告"), ("""账号或密码错误！"""))

   elif identity == '2':
    sql = "select * from administrater where username = '" + name + "' and " \
                    "password = '" + pwd + "' and identity= '" + identity + "' "
    print(sql)

    results = db.selectall(sql)
    # print(identity)

    if results:
     self.uu = seatmanage()
     self.uu.exec()
     self.close()
    else:
     ok = qmessagebox.warning(self, ("警告"), ("""账号或密码错误！"""))
   elif name == 'admin' and pwd == '123' and identity == '3':
    self.a = admin()
    self.a.show()
    self.close()



  else:
   if name == '':
    ok = qmessagebox.warning(self, ("警告"), ("""请输入账号！"""))
   if pwd == '':
    ok = qmessagebox.warning(self, ("警告"), ("""请输入密码！"""))
  # cursor.close()
  # conn.close()
 def slotregister(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：

from pyqt5 import qtcore, qtgui, qtwidgets

class ui_login_ui(object):
 def setupui(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)

 def retranslateui(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：

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。