SakurasanandClaude
548ebee47f
后端加载优化（盘中原本每次访问都重新聚合，耗时 10-30 秒）： - 图聚合结果与题材股票子层盘中加 60 秒缓存 - 缓存过期时返回旧数据并后台幂等重建（stale-while-revalidate），打开即秒开 - 缓存基础支持秒级 TTL（set_cache 新增 ttl_seconds） - 响应体瘦身：移除 edges（前端从 stocks[].themeCodes 重建）、 themes 精简字段、stocks 按 limit 裁剪，JSON 从数 MB 降至数百 KB 前端 Canvas 渲染重构： - d3-force 布局保留，SVG 渲染层替换为 Canvas 双缓冲（静止态离屏层 drawImage） - tick 由每帧 setState 改为 rAF 合帧，拖拽/缩放期间零 React 重渲染，800 节点流畅 交互优化： - 手机：新增 +/−/适应 缩放按钮、命中半径放大至 22px、tap/drag 6px 阈值区分、 双指捏合缩放、触屏禁用 hover 避免与选中冲突 - Mac 触控板：双指滚动=平移、捏合(ctrlKey)=缩放、滚轮缩放保留、点空白取消选中 Co-Authored-By: Claude <noreply@anthropic.com>
67 lines
2.4 KiB
Python
67 lines
2.4 KiB
Python
"""题材数据路由：题材列表、题材详情、题材相关股票"""
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from fastapi import APIRouter, Query, HTTPException
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from fastapi.responses import JSONResponse
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from services import themes
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router = APIRouter()
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# 上游反代/CDN 可能按 path 缓存，显式禁止缓存
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_NO_CACHE_HEADERS = {"Cache-Control": "no-store, no-cache, must-revalidate, max-age=0"}
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@router.get("", summary="题材列表")
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async def theme_list(
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sort_field: int = Query(1, ge=1, le=5, description="排序字段：1=涨幅 3=强度 4=热度排名 5=成交额"),
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asc: bool = Query(False, description="True=升序, False=降序"),
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):
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if sort_field not in (1, 3, 4, 5):
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raise HTTPException(status_code=400, detail="排序字段仅支持 1/3/4/5")
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data = await themes.fetch_theme_list(sort_field, asc)
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return JSONResponse(
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{"data": data, "count": len(data), "sort_field": sort_field, "asc": asc},
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headers=_NO_CACHE_HEADERS,
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)
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@router.get("/graph", summary="热点穿透：题材-股票网状关系图")
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async def theme_graph(
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sort_field: int = Query(1, description="题材排序：1=涨幅 4=热度"),
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top: int = Query(30, ge=1, le=60, description="题材数量"),
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limit: int = Query(1000, ge=100, le=2000, description="下发的股票节点上限（按穿透度取前 N 只）"),
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):
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if sort_field not in (1, 4):
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raise HTTPException(status_code=400, detail="排序字段仅支持 1(涨幅)/4(热度)")
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result = await themes.fetch_theme_graph(sort_field, top, limit)
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return JSONResponse(result, headers=_NO_CACHE_HEADERS)
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@router.get("/{theme_code}/detail", summary="题材详情")
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async def theme_detail(theme_code: str):
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data = await themes.fetch_theme_detail(theme_code)
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if not data:
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return JSONResponse(
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{"data": None, "theme_code": theme_code},
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headers=_NO_CACHE_HEADERS,
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)
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return JSONResponse(
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{"data": data, "theme_code": theme_code},
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headers=_NO_CACHE_HEADERS,
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)
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@router.get("/{theme_code}/stocks", summary="题材相关股票（全部）")
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async def theme_stocks(theme_code: str):
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result = await themes.fetch_theme_stocks(theme_code)
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return JSONResponse(
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{
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"data": result.get("stockList", []),
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"statistic": result.get("statistic", {}),
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"total": result.get("total", 0),
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"theme_code": theme_code,
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},
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headers=_NO_CACHE_HEADERS,
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)
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