之前写过一篇文章，是为VNPY1.9.2 版本加入聚宽的数据源，这个算是后续版本，为VNPY2版本加入聚宽数据源。
VNPY论坛里面有个篇文章也是讲加入聚宽数据源的，不过他是相当于集成到VNPY库代码中去，和VNPY自带的米筐数据源一样。我这篇其实也是借鉴他的，当然他说他借鉴之前我的1.92那篇。反正互相借鉴。
之前VNPY 1版本中，我的个人代码很多是直接在VNPY库代码直接修改或者增加的。每次VNPY升级就是非常头疼，要做代码对比，在一些可能被更新覆盖的地方再次维护测试。而且因为更新的地方很乱，造成后面生产版本一致停留在VNPY1.92。
还是要慢慢迁移到VNPY2版本，毕竟很多吸引的特性。这次准备不在VNPY的库文件代码上修改，而是像引用NUMPY或者Pandas这样，采用引用继承的方式，把自己的代码和VNPY的库代码隔离；这样即使VNPY升级，个人代码不用太担心，只要简单测试，保证继承引用VNPY的类或方法正常工作就可以了。
这里只要安装好了VNPY2.1以后版本，只要在任意地方拷贝下面代码，维护聚宽登录信息运行就可以下载聚宽数据。
其中config.json是保存聚宽登录账户，和需要下载的品种。品种信息是按照VNPY的品种和交易所信息组合字符串，如Symbol.Exchang。
而JQDataload.py是运行下载的，类JQDataService初始化是连接聚宽信息源，方法to_jq_symbol是把VNPY品种名称转换为聚宽名称，方法query_history是按照时间段下载分钟线要指定凭证，方法downloadAllMinuteBar是按照指定最近天数，下载config.json所以的品种数据。
最好去我的Github下载，比较方便
代码如下：
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# encoding: UTF-8import json
import time
from datetime import datetime, timedelta
from typing import List
import jqdatasdk as jq
from vnpy.trader.constant import Exchange, Interval
from vnpy.trader.database import database_manager
from vnpy.trader.object import (
BarData
)class JQDataService:
"""
Service for download market data from Joinquant
"""
def __init__(self):
# 加载配置
config = open(‘config.json‘)
self.setting = json.load(config)
USERNAME = self.setting[‘jqdata.Username‘]
PASSWORD = self.setting[‘jqdata.Password‘]
try:
jq.auth(USERNAME, PASSWORD)
except Exception as ex:
print("jq auth fail:" + repr(ex))
def to_jq_symbol(self, symbol: str, exchange: Exchange):
"""
CZCE product of RQData has symbol like "TA1905" while
vt symbol is "TA905.CZCE" so need to add "1" in symbol.
"""
if exchange in [Exchange.SSE, Exchange.SZSE]:
if exchange == Exchange.SSE:
jq_symbol = f"{symbol}.XSHG" # 上海证券交易所
else:
jq_symbol = f"{symbol}.XSHE" # 深圳证券交易所
elif exchange == Exchange.SHFE:
jq_symbol = f"{symbol}.XSGE" # 上期所
elif exchange == Exchange.CFFEX:
jq_symbol = f"{symbol}.CCFX" # 中金所
elif exchange == Exchange.DCE:
jq_symbol = f"{symbol}.XDCE" # 大商所
elif exchange == Exchange.INE:
jq_symbol = f"{symbol}.XINE" # 上海国际能源期货交易所
elif exchange == Exchange.CZCE:
# 郑商所 的合约代码年份只有三位 需要特殊处理
for count, word in enumerate(symbol):
if word.isdigit():
break
# Check for index symbol
time_str = symbol[count:]
if time_str in ["88", "888", "99", "8888"]:
return f"{symbol}.XZCE"
# noinspection PyUnboundLocalVariable
product = symbol[:count]
year = symbol[count]
month = symbol[count + 1:]
if year == "9":
year = "1" + year
else:
year = "2" + year
jq_symbol = f"{product}{year}{month}.XZCE"
return jq_symbol.upper()
def query_history(self, symbol, exchange, start, end, interval=‘1m‘):
"""
Query history bar data from JQData and update Database.
"""
jq_symbol = self.to_jq_symbol(symbol, exchange)
# if jq_symbol not in self.symbols:
# return None
# For querying night trading period data
# end += timedelta(1)
now = datetime.now()
if end >= now:
end = now
elif end.year == now.year and end.month == now.month and end.day == now.day:
end = now
df = jq.get_price(
jq_symbol,
frequency=interval,
fields=["open", "high", "low", "close", "volume"],
start_date=start,
end_date=end,
skip_paused=True
)
data: List[BarData] = []
if df is not None:
for ix, row in df.iterrows():
bar = BarData(
symbol=symbol,
exchange=exchange,
interval=Interval.MINUTE,
datetime=row.name.to_pydatetime() - timedelta(minutes=1),
open_price=row["open"],
high_price=row["high"],
low_price=row["low"],
close_price=row["close"],
volume=row["volume"],
gateway_name="JQ"
)
data.append(bar)
database_manager.save_bar_data(data)
return data
def downloadAllMinuteBar(self, days=1):
"""下载所有配置中的合约的分钟线数据"""
if days != 0:
startDt = datetime.today() - days * timedelta(1)
enddt = datetime.today()
else:
startDt = datetime.today() - 10 * timedelta(1)
enddt = datetime.today()
print(‘-‘ * 50)
print(u‘开始下载合约分钟线数据‘)
print(‘-‘ * 50)
if ‘Bar.Min‘ in self.setting:
l = self.setting["Bar.Min"]
for VNSymbol in l:
dt0 = time.process_time()
symbol = VNSymbol.split(".")[0]
exchange = Exchange(VNSymbol.split(".")[1])
self.query_history(symbol, exchange, startDt, enddt, interval=‘1m‘)
cost = (time.process_time() - dt0)
print(u‘合约%s的分钟K线数据下载完成%s - %s，耗时%s秒‘ % (symbol, startDt, enddt, cost))
print(jq.get_query_count())
print(‘-‘ * 50)
print
u‘合约分钟线数据下载完成‘
print(‘-‘ * 50)
return None
if __name__ == ‘__main__‘:
JQdata = JQDataService()
JQdata.downloadAllMinuteBar(days=30)
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config.json
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{ "jqdata.Username": "",
"jqdata.Password": "",
"Bar.Min":
[
"MA8888.CZCE",
"MA009.CZCE",
"SR8888.CZCE",
"RM8888.CZCE",
]
}
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