这里贴一个实现程序界面和业务逻辑分离的程序代码。这里说的主线程是UI线程，如果在这里面做逻辑处理的话，太长时间的处理会使主线程阻塞，表现就是界面假死。
直接贴代码吧：
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# -*- coding: gbk -*- ''' python连接oracle ''' from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtCore import QObject, pyqtSignal import threading import time import cx_Oracle browser_msg = None #更新textBrowser内容 my_con = None #数据库连接 total_count = 0 #插入数据计数 class Ui_main(QtWidgets.QWidget): def __init__(self, parent=None): """ :param parent: """ super(Ui_main, self).__init__(parent) #界面初始化 self.setFixedSize(535, 338) self.setWindowTitle('oracle - python') self.groupBox = QtWidgets.QGroupBox(self) self.groupBox.setGeometry(QtCore.QRect(10, 20, 231, 191)) self.groupBox.setObjectName("groupBox") self.btnConnect = QtWidgets.QPushButton(self.groupBox) self.btnConnect.setGeometry(QtCore.QRect(130, 160, 75, 23)) self.btnConnect.setObjectName("btnConnect") self.layoutWidget = QtWidgets.QWidget(self.groupBox) self.layoutWidget.setGeometry(QtCore.QRect(20, 20, 191, 131)) self.layoutWidget.setObjectName("layoutWidget") self.verticalLayout = QtWidgets.QVBoxLayout(self.layoutWidget) self.verticalLayout.setContentsMargins(0, 0, 0, 0) self.verticalLayout.setObjectName("verticalLayout") self.horizontalLayout = QtWidgets.QHBoxLayout() self.horizontalLayout.setObjectName("horizontalLayout") self.label = QtWidgets.QLabel(self.layoutWidget) self.label.setObjectName("label") self.horizontalLayout.addWidget(self.label) self.editUser = QtWidgets.QLineEdit(self.layoutWidget) self.editUser.setObjectName("editUser") self.horizontalLayout.addWidget(self.editUser) self.verticalLayout.addLayout(self.horizontalLayout) self.horizontalLayout_2 = QtWidgets.QHBoxLayout() self.horizontalLayout_2.setObjectName("horizontalLayout_2") self.label_2 = QtWidgets.QLabel(self.layoutWidget) self.label_2.setObjectName("label_2") self.horizontalLayout_2.addWidget(self.label_2) self.editPsd = QtWidgets.QLineEdit(self.layoutWidget) self.editPsd.setObjectName("editPsd") self.horizontalLayout_2.addWidget(self.editPsd) self.verticalLayout.addLayout(self.horizontalLayout_2) self.horizontalLayout_3 = QtWidgets.QHBoxLayout() self.horizontalLayout_3.setObjectName("horizontalLayout_3") self.label_3 = QtWidgets.QLabel(self.layoutWidget) self.label_3.setObjectName("label_3") self.horizontalLayout_3.addWidget(self.label_3) self.editServer = QtWidgets.QLineEdit(self.layoutWidget) self.editServer.setObjectName("editServer") self.horizontalLayout_3.addWidget(self.editServer) self.verticalLayout.addLayout(self.horizontalLayout_3) self.groupBox_2 = QtWidgets.QGroupBox(self) self.groupBox_2.setGeometry(QtCore.QRect(10, 220, 231, 101)) self.groupBox_2.setObjectName("groupBox_2") self.widget = QtWidgets.QWidget(self.groupBox_2) self.widget.setGeometry(QtCore.QRect(20, 30, 189, 22)) self.widget.setObjectName("widget") self.horizontalLayout_4 = QtWidgets.QHBoxLayout(self.widget) self.horizontalLayout_4.setContentsMargins(0, 0, 0, 0) self.horizontalLayout_4.setObjectName("horizontalLayout_4") self.label_4 = QtWidgets.QLabel(self.widget) self.label_4.setObjectName("label_4") self.horizontalLayout_4.addWidget(self.label_4) self.editThreads = QtWidgets.QLineEdit(self.widget) self.editThreads.setObjectName("editThreads") self.horizontalLayout_4.addWidget(self.editThreads) self.layoutWidget1 = QtWidgets.QWidget(self) self.layoutWidget1.setGeometry(QtCore.QRect(260, 20, 260, 301)) self.layoutWidget1.setObjectName("layoutWidget1") self.verticalLayout_3 = QtWidgets.QVBoxLayout(self.layoutWidget1) self.verticalLayout_3.setContentsMargins(0, 0, 0, 0) self.verticalLayout_3.setObjectName("verticalLayout_3") self.verticalLayout_2 = QtWidgets.QVBoxLayout() self.verticalLayout_2.setObjectName("verticalLayout_2") self.label_5 = QtWidgets.QLabel(self.layoutWidget1) self.label_5.setObjectName("label_5") self.verticalLayout_2.addWidget(self.label_5) self.textStatus = QtWidgets.QTextBrowser(self.layoutWidget1) self.textStatus.setObjectName("textStatus") self.verticalLayout_2.addWidget(self.textStatus) self.verticalLayout_3.addLayout(self.verticalLayout_2) self.btnStart = QtWidgets.QPushButton(self.layoutWidget1) self.btnStart.setObjectName("btnStart") self.verticalLayout_3.addWidget(self.btnStart) self.groupBox.setTitle("oracle登录") self.btnConnect.setText("连接") self.label.setText("用户名：") self.label_2.setText("密码：") self.label_3.setText("服务器：") self.groupBox_2.setTitle("配置") self.label_4.setText("线程数：") self.label_5.setText("状态信息：") self.btnStart.setText("开始") self.editUser.setText('abcd') self.editPsd.setText('bacd') self.editServer.setText('abcd_local') self.editThreads.setText('1') global browser_msg #关联信号槽 self.btnConnect.clicked.connect(self.connect_oracle) self.btnStart.clicked.connect(self.insert_oracle) def connect_oracle(self): """ 连接数据库 """ self.ora_user = self.editUser.text() self.ora_psd = self.editPsd.text() self.ora_server = self.editServer.text() self.textStatus.setText('正在连接...') self.con = Connection(self.ora_user, self.ora_psd, self.ora_server) self.con.signal_connection.connect(self.slot_update_browser) self.con.start() def insert_oracle(self): """ 录入数据 """ self.insert = Insertion() self.insert.signal_insertion.connect(self.slot_update_browser) self.insert.start() def slot_update_browser(self): """ 更新textStatus内容 """ self.textStatus.setText(browser_msg) class Connection(QObject, threading.Thread): signal_connection = pyqtSignal() def __init__(self, ora_user, ora_psd, ora_server): super(Connection, self).__init__() self.ora_user = ora_user self.ora_psd = ora_psd self.ora_server = ora_server def run(self): global my_con global browser_msg sql_str = self.ora_user + '/' + self.ora_psd + '@' + self.ora_server try: my_con = cx_Oracle.connect(sql_str) except cx_Oracle.DatabaseError as exc: error, = exc.args browser_msg = 'Oracle-Error-Code:' + str(error.code) +'\nOracle-Error-Message:' + error.message self.signal_connection.emit() else: browser_msg = '连接oracle数据库成功...' self.signal_connection.emit() class Insertion(QObject, threading.Thread): signal_insertion = pyqtSignal() def __init__(self): super(Insertion, self).__init__() self.count = 0 def run(self): global my_con global browser_msg global total_count if my_con: self.cursor = my_con.cursor() while True: browser_msg = '正在录入第' + str(total_count+1) +'条数据...' self.signal_insertion.emit() total_count = total_count + 1 param_cufile = {'id':str(total_count), 'paperid':str(total_count)} self.id1 = total_count #录入ucrc_cufile、ucrc_loanopen、ucrc_loanrepayment表 try: self.cursor.execute("INSERT INTO ucrc_cufile values(:id,'N10155840H0002','林志玲','1',:paperid,'2',to_date('19930220', 'YYYYMMDD'),'2','3','05362545372','13424433317','02188567890','jerryz.xdu@gmail.com','深圳市宝安区西乡固戍社区93号94号95号46号','261523','广东省深圳市龙岗区葵新南路65号','深圳市葵涌高圳头股份合作公司','深圳市宝安区西乡盐田新一村6巷1号','518000','2','3','1','2','2009','500000','6225789187622234','招商银行','深圳市罗湖区黄贝街道凤凰路193号海珑华苑天高阁31F','518020','2','3','李冰冰','1','370623456754651234','深圳市科泰超进出口有限公司','13234567890','za001',to_date('20131010', 'YYYYMMDD'),'za001',to_date('20131021', 'YYYYMMDD'))", param_cufile) self.cursor.execute('commit') for i in range(0, 10): total_count = total_count + 1 self.id2 = total_count param_loanopen = {'id':str(total_count), 'cufile_id':str(self.id1), 'loanopen_id':str(total_count)} self.cursor.execute("INSERT INTO ucrc_loanopen values(:id,:cufile_id,'N10155840H0002',:loanopen_id,500000,500000,500000,500000,'23456',to_date('20081212', 'YYYYMMDD'),to_date('20120101', 'YYYYMMDD'),'24','///////////////////////*','1','0',to_date('20130202', 'YYYYMMDD'),'1','2','CNY','2','3','N10155840H000220130431112L4',to_date('20130202', 'YYYYMMDD'),'za001',to_date('20130202', 'YYYYMMDD'),'za001',to_date('20130202', 'YYYYMMDD'))", param_loanopen) self.cursor.execute('commit') for i in range(0, 10): total_count = total_count + 1 param_loanreapyment = {'id':str(total_count), 'loanrepyment_id':str(self.id2)} self.cursor.execute("INSERT INTO ucrc_loanrepayment values(:id,:loanrepyment_id,50000,50000,50000,50000,'12',to_date('20130202', 'YYYYMMDD'),to_date('20130202', 'YYYYMMDD'),20000,20000,0,0,0,0,0,0,0,0,'1','2','///////////////////////*',to_date('20130202', 'YYYYMMDD'),'1','N10155840H000220130431112L4',to_date('20130202', 'YYYYMMDD'),'za001',to_date('20130202', 'YYYYMMDD'),'za001',to_date('20130202', 'YYYYMMDD'),null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null)", param_loanreapyment) self.cursor.execute('commit') print('insert...') except cx_Oracle.DatabaseError as exc: error, = exc.args browser_msg = 'Oracle-Error-Code:' + str(error.code) +'\nOracle-Error-Message:' + error.message print(browser_msg) self.signal_insertion.emit() else: browser_msg = '未登录...' self.signal_insertion.emit() if __name__ == '__main__': import sys app = QtWidgets.QApplication(sys.argv) w = Ui_main() w.show() sys.exit(app.exec_()) |
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