python将文件夹下的所有csv文件存入mysql和oracle数据库

#oracle版

首先新建python脚本（d:/python/orclImport.py）

import os  #引入os包

if __name__ == '__main__':
    #遍历文件夹下所有的dmp文件，其中filename为所有文件、文件夹的名称。
    #因为我文件夹下确定都是dmp文件，所以无需进行特殊判断
    for filename in os.listdir("D:dmp"):
        # 调用cmd窗口，并执行dmp的导入命令
        # 因为dmp文件数据量太大，我选择一条一条的去执行，就是如此，电脑已经打字都卡了
        os.system("imp orcl/123456@127.0.0.1/zrr file="D:dmp\"+filename+"" full=y ignore=y")

在命令行执行 python d:/python/orclImport.py

# mysql版

import os
import pymysql
# import datetime, time
# from config import *


database_table_name = "stockdata"
infile_path = 'E:/学习资料/stock_data'
outfile_path = 'E:/学习资料/stock_data1'


# 删除首行的股票代码和空行
def delblankline(infile, outfile):
    infp = open(infile, "r")
    outfp = open(outfile, "w")
    lines = infp.readlines()
    for li in lines[1:]:
        if li.split():
            outfp.writelines(li)
    infp.close()
    outfp.close()

def csv2bigcsv(path, outfile):
    """1.删除股票代码+空行  2.合并所有文件数据"""
    # infp = open(infile, "r")
    outfp = open(outfile, "w")
    i = 1
    for filename in os.listdir(path):
        domain = os.path.abspath(path)  # 获取文件夹的路径，也可去掉
        filepath = os.path.join(domain, filename)  # 文件的完整路径
        infp = open(filepath, 'r')  # 读取文件内容
        lines = infp.readlines()
        if i == 1: outfp.writelines(lines[3].split())
        for li in lines[5:]:
            if li.split():
                outfp.writelines(li)
        infp.close()
        i += 1
    outfp.close()

# 执行sql语句
def db_excute(sql):
    # local_infile = 1 执行load data infile
    db_info = {
        'host': '127.0.0.1',
        'user': 'root',
        'password': 'root',
        'port': 3306,
        'database': 'test',
        'charset': 'utf8',
        'local_infile': 1
    }
    db = pymysql.connect(**db_info)
    # db.set_charset('utf8')
    cursor = db.cursor()
    try:
        cursor.execute(sql)
        db.commit()
    except pymysql.Error as e:
        print(e)
    finally:
        db.close()


# 将单个csv文件插入数据库
def csv2mysql(file_path, database_table_name):
    ''' LOAD DATA LOCAL INFILE "/root/test/infohash_20180603.txt"
        INTO TABLE xl_log_analysis.infohash_20180603
        FIELDS TERMINATED BY ','
        OPTIONALLY ENCLOSED BY '"' ESCAPED BY '"'
        LINES TERMINATED BY '
'
        IGNORE 1 LINES ( infohash );'''
    '''LINES TERMINATED BY \r\n WIN 为\r,LINUX 为\n'''

    # " LOAD DATA LOCAL INFILE '" + file_path + "'"
    #       + " INTO TABLE " + database_table_name 
    #       + " FIELDS TERMINATED BY ',' " 
    #       + " OPTIONALLY ENCLOSED BY '"' ESCAPED BY '"' " 
    #       + " LINES TERMINATED BY '\r\n' " 
    #       + " IGNORE 5 LINES; "

    # 报1148错误，可以本地开启local_infile服务
    # set global local_infile = 'ON';
    sql = '''LOAD DATA LOCAL INFILE '{0}' INTO TABLE {1} 
            CHARACTER SET UTF8 
            FIELDS TERMINATED BY ',' 
            ENCLOSED BY '"' ESCAPED BY '"' 
            LINES TERMINATED BY '\r\n' 
            IGNORE 5 LINES (`symbol`, `date`, `opening_price`, `highest_price` , `lowest_price`, `closing_price`,  
            `change`, `trading_volume`, `turnover`, `circulation_market_value`, `total_value`, 
            `turnover_rate`, `post_resumption_price`, `report_type`, `report_time`, `PE_TTM`, 
            `PS_TTM`, `PCF_TTM`, `PB`, `ex_duplicate_price`, `tradable_share`, `total_stock_issue`, 
            `total_assets`, `current_asset`, `gross_liabilities`, `current_liabilities`, `total_operating_income`, 
            `operating_income`, `total_operating_costs`, `operating_costs`, `operating_profit`, `net_profits`, 
            `selling_expenses`, `administration_expenses`, `financial_expenses`, `net_cash_flow`, 
            `NOCF`, `NICF`, `NFCF`, `ROE_TTM`);'''.format(file_path, database_table_name)
    db_excute(sql)
    # print(sql)


# 将文件路径下的所有csv文件插入数据库
def to_mysql(infile_path, database_table_name):
    for filename in os.listdir(infile_path):
        print('正在上传：', filename)
        # domain = os.path.abspath(infile_path)  # 获取文件夹的路径，也可去掉
        # file_path = os.path.join(domain, filename)  # 文件的完整路径
        file_path = infile_path + '/' + filename
        # print('file_path: ',file_path)
        csv2mysql(file_path, database_table_name)


if __name__ == '__main__':
    # delblankline("sh600000.csv", "sh600000_.csv")
    # csv2bigcsv(infile_path, "all-groups.csv")

    # 创建新表
    createtable_sql = '''CREATE TABLE IF NOT EXISTS `{0}` (
	`id` INT NOT NULL AUTO_INCREMENT COMMENT 'ID',
	`symbol` VARCHAR ( 10 ) DEFAULT NULL COMMENT '股票代码',
	`date` DATE DEFAULT NULL COMMENT '日期',
	`opening_price` FLOAT DEFAULT NULL COMMENT '开盘价',
	`highest_price` FLOAT DEFAULT NULL COMMENT '最高价',
	`lowest_price` FLOAT DEFAULT NULL COMMENT '最低价',
	`closing_price` FLOAT DEFAULT NULL COMMENT '收盘价',
	`change` FLOAT DEFAULT NULL COMMENT '涨跌幅',
	`trading_volume` BIGINT DEFAULT NULL COMMENT '交易量',
	`turnover` BIGINT DEFAULT NULL COMMENT '交易额',
	`circulation_market_value` BIGINT DEFAULT NULL COMMENT '流通市值',
	`total_value` BIGINT DEFAULT NULL COMMENT '总市值',
	`turnover_rate` FLOAT DEFAULT NULL COMMENT '换手率',
	`post_resumption_price` FLOAT DEFAULT NULL COMMENT '后复权价格',
	`report_type` VARCHAR ( 64 ) DEFAULT NULL COMMENT '报告类型',
	`report_time` DATE DEFAULT NULL COMMENT '报告时间',
	# 市盈率PE 市净率PB 市销率PS 市现率PCF
	`PE_TTM` FLOAT DEFAULT NULL COMMENT '市盈率TTM',
	`PS_TTM` FLOAT DEFAULT NULL COMMENT '市销率TTM',
	`PCF_TTM` FLOAT DEFAULT NULL COMMENT '市现率TTM',
	`PB` FLOAT DEFAULT NULL COMMENT '市净率',
	`ex_duplicate_price` FLOAT DEFAULT NULL COMMENT '前复权价格',
	`tradable_share` BIGINT DEFAULT NULL COMMENT '流通股本',
	`total_stock_issue` BIGINT DEFAULT NULL COMMENT '总股本',
	`total_assets` BIGINT DEFAULT NULL COMMENT '总资产',
	`current_asset` BIGINT DEFAULT NULL COMMENT '流动资产',
	`gross_liabilities` BIGINT DEFAULT NULL COMMENT '总负债',
	`current_liabilities` BIGINT DEFAULT NULL COMMENT '流动负债',
	`total_operating_income` BIGINT DEFAULT NULL COMMENT '营业总收入',
	`operating_income` BIGINT DEFAULT NULL COMMENT '营业收入',
	`total_operating_costs` BIGINT DEFAULT NULL COMMENT '营业总成本',
	`operating_costs` BIGINT DEFAULT NULL COMMENT '营业成本',
	`operating_profit` BIGINT DEFAULT NULL COMMENT '营业利润',
	`net_profits` BIGINT DEFAULT NULL COMMENT '净利润',
	`selling_expenses` BIGINT DEFAULT NULL COMMENT '销售费用',
	`administration_expenses` BIGINT DEFAULT NULL COMMENT '管理费用',
	`financial_expenses` BIGINT DEFAULT NULL COMMENT '财务费用',
	`net_cash_flow` BIGINT DEFAULT NULL COMMENT '净现金流',
	`NOCF` BIGINT DEFAULT NULL COMMENT '经营活动净现金流operating activities',
	`NICF` BIGINT DEFAULT NULL COMMENT '投资活动净现金流investment activities',
	`NFCF` BIGINT DEFAULT NULL COMMENT '筹资活动净现金流financing activities',
	`ROE_TTM` BIGINT DEFAULT NULL COMMENT '净资产收益率TTM Net asset yield',
	PRIMARY KEY ( `id` )
	) ENGINE = INNODB DEFAULT CHARSET = UTF8MB4;'''.format(database_table_name)
    db_excute(createtable_sql)  # 创建新表
    print(createtable_sql)
    to_mysql(infile_path, database_table_name)  # 导入infohash数据到mysql xl_log_analysis 表