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如下图,如果运行行情数据下载时候,是在交易日中的话比如2点半或者上午8点,如果填写的endDate是当天或者之后的日期,那么返回数据会自动填充到下午3点交易时候。此时之后的数据都是交易量为0,价格就是2点半时候价格。
所以在用作实盘数据分析时候,必须要填入endDate的分钟时间为当前时间,才可以确保不会出现控制。整体代码更新如下:
# encoding: UTF-8 from __future__ import print_function import sys import json from datetime import datetime,date,timedelta from time import time, sleep from pymongo import MongoClient, ASCENDING import pandas as pd from vnpy.trader.vtObject import VtBarData, VtTickData from vnpy.trader.app.ctaStrategy.ctaBase import (MINUTE_DB_NAME, DAILY_DB_NAME, TICK_DB_NAME) import jqdatasdk as jq # 加载配置 config = open('config.json') setting = json.load(config) mc = MongoClient() # Mongo连接 dbMinute = mc[MINUTE_DB_NAME] # 数据库 # dbDaily = mc[DAILY_DB_NAME] # dbTick = mc[TICK_DB_NAME] USERNAME = setting['Username'] PASSWORD = setting['Password'] jq.auth(USERNAME, PASSWORD) FIELDS = ['open', 'high', 'low', 'close', 'volume'] # ---------------------------------------------------------------------- def generateVtBar(row, symbol): """生成K线""" bar = VtBarData() bar.symbol = symbol bar.exchange = "SHFE" bar.vtSymbol = bar.vtSymbol = '.'.join([bar.symbol, bar.exchange]) bar.open = row['open'] bar.high = row['high'] bar.low = row['low'] bar.close = row['close'] bar.volume = row['volume'] bardatetime = row.name bar.date = bardatetime.strftime("%Y%m%d") bar.time = bardatetime.strftime("%H%M%S") # 将bar的时间改成提前一分钟 hour = bar.time[0:2] minute = bar.time[2:4] sec = bar.time[4:6] if minute == "00": minute = "59" h = int(hour) if h == 0: h = 24 hour = str(h - 1).rjust(2, '0') else: minute = str(int(minute) - 1).rjust(2, '0') bar.time = hour + minute + sec bar.datetime = datetime.strptime(' '.join([bar.date, bar.time]), '%Y%m%d %H%M%S') return bar # ---------------------------------------------------------------------- def jqdownloadMinuteBarBySymbol(symbol,startDate,endDate): """下载某一合约的分钟线数据""" start = time() cl = dbMinute[symbol] cl.ensure_index([('datetime', ASCENDING)], unique=True) # 添加索引 df = jq.get_price(setting[symbol],start_date = startDate,end_date = endDate, frequency='1m', fields=FIELDS,skip_paused = True) for ix, row in df.iterrows(): bar = generateVtBar(row, symbol) d = bar.__dict__ flt = {'datetime': bar.datetime} cl.replace_one(flt, d, True) end = time() cost = (end - start) * 1000 print(u'合约%s的分钟K线数据下载完成%s - %s,耗时%s毫秒' % (symbol, df.index[0], df.index[-1], cost)) print(jq.get_query_count()) def jqdownloadMappingExcel(exportpath = "C:\Project\\"): getfuture = jq.get_all_securities(types=['futures'], date=None) # list: 用来过滤securities的类型, list元素可选: ‘stock’, ‘fund’, ‘index’, ‘futures’, ‘etf’, ‘lof’, ‘fja’, ‘fjb’.types为空时返回所有股票, 不包括基金, 指数和期货 getfuture.to_excel( exportpath + "Mapping" + str(date.today()) + "futures.xls", index=True, header=True) # ---------------------------------------------------------------------- def downloadAllMinuteBar(days=10): """下载所有配置中的合约的分钟线数据""" print('-' * 50) print(u'开始下载合约分钟线数据') print('-' * 50) startDt = datetime.today() - days * timedelta(1) startDate = startDt.strftime('%Y-%m-%d') # 添加下载任务 enddt = datetime.today() endDate = enddt.strftime('%Y-%m-%d %H:%M:%S') jqdownloadMinuteBarBySymbol('rb1910', startDate, endDate) print('-' * 50) print u'合约分钟线数据下载完成' print('-' * 50) if __name__ == '__main__': # jqdownloadMappingExcel() #下载主力合约 downloadAllMinuteBar(days=10) #下载单个品种 # jqdownloadMinuteBarBySymbol('510050.XSHG',startDate,endDate)
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