python3實現mysql導出excel

 Mysql中'employee'表內容如下：

# __Desc__ = 從數據庫中導出數據到excel數據表中
import xlwt
import pymysql


class MYSQL:
    def __init__(self):
        pass

    def __del__(self):
        self._cursor.close()
        self._connect.close()

    def connectDB(self):
        """
        連接數據庫
        :return:
        """
        try:
            self._connect = pymysql.Connect(
                host='localhost',
                port=3306,
                user='root',
                passwd='123456',
                db='test',
                charset='utf8'
            )

            return 0
        except:
            return -1

    def export(self, table_name, output_path):
        self._cursor = self._connect.cursor()
        count = self._cursor.execute('select * from '+table_name)
        # print(self._cursor.lastrowid)
        print(count)
        # 重置游標的位置
        self._cursor.scroll(0, mode='absolute')
        # 搜取所有結果
        results = self._cursor.fetchall()

        # 獲取MYSQL里面的數據字段名稱
        fields = self._cursor.description
        workbook = xlwt.Workbook()

        # 注意: 在add_sheet時, 置參數cell_overwrite_ok=True, 可以覆蓋原單元格中數據。
        # cell_overwrite_ok默認為False, 覆蓋的話, 會拋出異常.
        sheet = workbook.add_sheet('table_'+table_name, cell_overwrite_ok=True)

        # 寫上字段信息
        for field in range(0, len(fields)):
            sheet.write(0, field, fields[field][0])

        # 獲取並寫入數據段信息
        row = 1
        col = 0
        for row in range(1,len(results)+1):
            for col in range(0, len(fields)):
                sheet.write(row, col, u'%s' % results[row-1][col])

        workbook.save(output_path)


if __name__ == '__main__':
    mysql = MYSQL()
    flag = mysql.connectDB()
    if flag == -1:
        print('數據庫連接失敗')
    else:
        print('數據庫連接成功')
        mysql.export('employee', 'E:/test_input.xls')

執行結果如下：