基于PyQt5实现SqlServer数据库表导出Excel表格小工具

from PyQt5.QtWidgets import *

from PyQt5.QtGui import *

from PyQt5.QtCore import *

import sys

from datetime import datetime

import pymssql

import pandas as pd

import image

class DataBaseToExcelUI(QWidget):
    def __init__(self):
        super(DataBaseToExcelUI, self).__init__()
        self.init_ui()

    def init_ui(self):
        self.setWindowTitle('数据导出（SQLSERVER数据库导出为Excel）')
        self.setWindowIcon(QIcon(':/analysis.ico'))
        self.resize(300, 400)

        self.database_ip_label = QLabel()
        self.database_ip_label.setText('数据库IP：')

        self.database_ip_in = QLineEdit()
        self.database_ip_in.setText('192.168.10.10')

        self.database_port_label = QLabel()
        self.database_port_label.setText('数据库端口：')

        self.database_port_in = QLineEdit()
        self.database_port_in.setText('1513')

        self.database_name_label = QLabel()
        self.database_name_label.setText('数据库名称：')

        self.database_name_in = QLineEdit()
        self.database_name_in.setText('source_data')

        self.database_user_label = QLabel()
        self.database_user_label.setText('数据库用户名：')

        self.database_user_in = QLineEdit()
        self.database_user_in.setText('sa')

        self.database_pwd_label = QLabel()
        self.database_pwd_label.setText('数据库密码：')

        self.database_pwd_in = QLineEdit()
        self.database_pwd_in.setText('')

        self.database_table_label = QLabel()
        self.database_table_label.setText('数据表名称：')

        self.database_table_in = QLineEdit()
        self.database_table_in.setText('table_name')

        self.brower = QTextBrowser()
        self.brower.setReadOnly(True)
        self.brower.setFont(QFont('宋体', 8))
        self.brower.setPlaceholderText('日志处理过程区域...')
        self.brower.ensureCursorVisible()

        self.start_btn = QPushButton()
        self.start_btn.setText('开始导出')
        self.start_btn.clicked.connect(self.start_btn_clk)

        f_box = QFormLayout()
        f_box.addRow(self.database_ip_label, self.database_ip_in)
        f_box.addRow(self.database_port_label, self.database_port_in)
        f_box.addRow(self.database_name_label, self.database_name_in)
        f_box.addRow(self.database_user_label, self.database_user_in)
        f_box.addRow(self.database_pwd_label, self.database_pwd_in)
        f_box.addRow(self.database_table_label, self.database_table_in)
        f_box.addRow(self.start_btn)
        f_box.addRow(self.brower)

        self.thread_ = WorkThread(self)
        self.thread_.message.connect(self.show_message)
        self.thread_.finished.connect(self.finished)

        self.setLayout(f_box)

    def show_message(self, text):
        cursor = self.brower.textCursor()
        cursor.movePosition(QTextCursor.End)
        self.brower.append(text)
        self.brower.setTextCursor(cursor)
        self.brower.ensureCursorVisible()

    def finished(self, text):
        if text is True:
            self.start_btn.setEnabled(True)

    def start_btn_clk(self):
        self.start_btn.setEnabled(False)
        self.thread_.start()

class WorkThread(QThread):
    message = pyqtSignal(str)
    finished = pyqtSignal(bool)

    def __init__(self, parent=None):
        super(WorkThread, self).__init__(parent)
        self.parent = parent
        self.working = True

    def __del__(self):
        self.working = False