python制作简单excel统计报表3之将mysql数据库中的数据导入excel模板并生成统计图
# coding=utf-8 from openpyxl import load_workbook from openpyxl.chart import ( AreaChart, Reference ) import MySQLdb class GaokaoExport(object): def __init__(self): self.wb = load_workbook(\'./static/tongji_example.xlsx\') self.ws = self.wb.active self.ws.title = \'成绩统计\' self.ws.sheet_properties.tabColor = \'ff0000\' def get_conn(self): """ 获取mysql 的链接""" global conn try: conn = MySQLdb.connect( db = \'user_grade\', host = \'localhost\', user = \'root\', password = \'root\', charset = \'utf8\' ) except: pass return conn def export_data(self): # 取出数据库中的数据 conn = self.get_conn() cur = conn.cursor() sql = "select year,max,avg from score" cur.execute(sql) rows = cur.fetchall() # 循环写入到excel中 row_id = 10 # excel的第10行开始 for (i, row) in enumerate(rows): (self.ws[\'C{0}\'.format(row_id)], self.ws[\'D{0}\'.format(row_id)], self.ws[\'E{0}\'.format(row_id)]) = row row_id += 1 # 显示图表 # 参考:https://openpyxl.readthedocs.io/en/stable/charts/area.html#d-area-charts chart = AreaChart() chart.title = "成绩统计" chart.style = 13 chart.x_axis.title = \'年份\' chart.y_axis.title = \'分数\' # 横坐标 cats = Reference(self.ws, min_col=3, min_row=10, max_row=row_id) # 数据区域 data = Reference(self.ws, min_col=4, min_row=9, max_col=5, max_row=row_id) chart.add_data(data, titles_from_data=True) chart.set_categories(cats) self.ws.add_chart(chart, "A{0}".format(row_id + 2)) # 保存到excel中 self.wb.save(\'./static/jieguo01.xlsx\') self.wb.close() if __name__ == "__main__": client = GaokaoExport() client.export_data()
mysql表数据:
create database user_grade charset=utf8mb4;
use user_grade;
SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;
DROP TABLE IF EXISTS `score`;
CREATE TABLE `score` (
`id` int(11) UNSIGNED NOT NULL AUTO_INCREMENT,
`year` int(11) NULL DEFAULT NULL,
`max` int(11) NULL DEFAULT NULL,
`avg` int(11) NULL DEFAULT NULL,
PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_bin;
INSERT INTO `score` VALUES (25, 2008, 700, 661);
INSERT INTO `score` VALUES (26, 2009, 690, 653);
INSERT INTO `score` VALUES (27, 2010, 699, 663);
INSERT INTO `score` VALUES (28, 2011, 690, 662);
INSERT INTO `score` VALUES (29, 2012, 702, 660);
INSERT INTO `score` VALUES (30, 2013, 720, 692);
INSERT INTO `score` VALUES (31, 2014, 719, 670);
INSERT INTO `score` VALUES (32, 2015, 721, 694);
INSERT INTO `score` VALUES (33, 2016, 715, 687);
INSERT INTO `score` VALUES (34, 2017, 705, 671);
高考数据统计模板:
excel的统计结果