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修复 NaN 值导致 JSON 序列化失败、K 线数据无法展示

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Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
fish
2026-05-07 23:02:39 +08:00
parent f7b60659ab
commit 465feaa833
2 changed files with 10 additions and 3 deletions
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5
tushare/src/storage.py
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@@ -68,6 +68,11 @@ def save_candles(df: pd.DataFrame, db_url: str = DEFAULT_DB_URL):
df = df.copy() df = df.copy()
df = df.where(pd.notna(df), None) df = df.where(pd.notna(df), None)
records = df.to_dict(orient="records") records = df.to_dict(orient="records")
# pandas float 列的 None 会被转为 NaN，需手动清理后再存入数据库
for record in records:
for key, val in record.items():
if isinstance(val, float) and val != val: # NaN != NaN
record[key] = None
with conn.cursor() as cur: with conn.cursor() as cur:
cur.executemany( cur.executemany(
""" """

8
web/backend/internal/store/futures.go
View File

@@ -149,9 +149,11 @@ func (s *FuturesStore) ListCandles(tsCode, start, end string) ([]Candle, error)
return nil, ErrMissingTsCode return nil, ErrMissingTsCode
} }
q := `SELECT ts_code, trade_date, q := `SELECT ts_code, trade_date,
COALESCE(open, 0), COALESCE(high, 0), COALESCE(low, 0), COALESCE(close, 0), COALESCE(NULLIF(open, 'NaN'::real), 0), COALESCE(NULLIF(high, 'NaN'::real), 0),
COALESCE(vol, 0), COALESCE(amount, 0), COALESCE(NULLIF(low, 'NaN'::real), 0), COALESCE(NULLIF(close, 'NaN'::real), 0),
COALESCE(oi, 0), COALESCE(oi_chg, 0), COALESCE(pre_close, 0) COALESCE(NULLIF(vol, 'NaN'::real), 0), COALESCE(NULLIF(amount, 'NaN'::real), 0),
COALESCE(NULLIF(oi, 'NaN'::real), 0), COALESCE(NULLIF(oi_chg, 'NaN'::real), 0),
COALESCE(NULLIF(pre_close, 'NaN'::real), 0)
FROM candles WHERE ts_code = $1` FROM candles WHERE ts_code = $1`
args := []any{tsCode} args := []any{tsCode}
n := 1 n := 1