用python将excle数据导入数据库中

import pymysql
import xlrd
import sys
  
'''
    连接数据库
    args:db_name(数据库名称)
    returns:db
  
'''
  
  
def mysql_link(de_name):
    try:
        db = pymysql.connect(host="127.0.0.1", user="xxx",
                             passwd="xxx",
                             db=xxx,
                             charset='utf8')
        return db
    except:
        print("could not connect to mysql server")
  
  
'''
    读取excel函数
    args:excel_file(excel文件,目录在py文件同目录)
    returns:book
'''
  
  
def open_excel(excel_file):
    try:
        book = xlrd.open_workbook(excel_file)  # 文件名,把文件与py文件放在同一目录下
        print(sys.getsizeof(book))
        return book
    except:
        print("open excel file failed!")
  
  
'''
    执行插入操作
    args:db_name(数据库名称)
         table_name(表名称)
         excel_file(excel文件名,把文件与py文件放在同一目录下)
  
'''
  
  
def store_to(db_name, table_name, excel_file):
    db = mysql_link(db_name)  # 打开数据库连接
    cursor = db.cursor()  # 使用 cursor() 方法创建一个游标对象 cursor
    list = []  # 定义列表用来存放数据
 
 
    book = open_excel(excel_file)  # 打开excel文件
    sheets = book.sheet_names()  # 获取所有sheet表名
    for sheet in sheets:
        sh = book.sheet_by_name(sheet)  # 打开每一张表
        row_num = sh.nrows
        print(row_num)
         
        num = 0  # 用来控制每次插入的数量
        for i in range(1, row_num):  # 第一行是标题名,对应表中的字段名所以应该从第二行开始,计算机以0开始计数,所以值是1
            row_data = sh.row_values(i)  # 按行获取excel的值
            value = (row_data[0], row_data[1], row_data[2], row_data[3], row_data[4], row_data[5], \
                     row_data[6], row_data[7], row_data[8], row_data[9], row_data[10], row_data[11], row_data[12],
                     row_data[13], row_data[14])
            list.append(value)  # 将数据暂存在列表
            num += 1
            if( num>= 10000 ):  # 每一万条数据执行一次插入
                print(sys.getsizeof(list))
                sql = "INSERT INTO " + table_name + " (time, xingbie, afdd, xzb, yzb, cfbj, jjlbmc, \
                bjlbmc, bjlxmc, bjlxxlmc, gxqymc,gxdwmc, afql, afxqxx, cjdwmc)\
                VALUES(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)"
                cursor.executemany(sql, list)  # 执行sql语句
  
                num = 0  # 计数归零
                list.clear()  # 清空list
                print("worksheets: " + sheet + " has been inserted 10000 datas!")<br>        # 将剩下不足10000的数据执行插入  
        sql = "INSERT INTO " + table_name + " (time, xingbie, afdd, xzb, yzb, cfbj, jjlbmc, \
                bjlbmc, bjlxmc, bjlxxlmc, gxqymc,gxdwmc, afql, afxqxx, cjdwmc)\
                VALUES(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)"
        cursor.executemany(sql, list)  # 执行sql语句
        print("worksheets: " + sheet + " has been inserted "+len(list)+" datas!")
        list.clear()  # 清空list
    print("worksheets: " + sheet + " has been inserted " + str(row_num) + " datas!")
    db.commit()  # 提交
    cursor.close()  # 关闭连接
    db.close()
  
  
if __name__ == '__main__':
    store_to('demo', 'demo_yangben', 'xxx.xlsx')

sys.getsizeof()方法监测内存占用 
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转载至:https://www.cnblogs.com/longbigbeard/p/9317141.html

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