修改GraphRAG后端，另外两本小说入库
This commit is contained in:
@@ -1,5 +1,5 @@
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"""
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大唐双龙传 GraphRAG — FastAPI 后端
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武侠三部曲 GraphRAG — FastAPI 后端
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端点:
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GET /api/health — 健康检查（含 Neo4j 连通性）
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@@ -13,11 +13,11 @@ from fastapi.middleware.cors import CORSMiddleware
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from pydantic import BaseModel
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from graph_query import get_driver, get_graph_stats
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from graph_builder import build_graph
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from graph_builder import build_all_graphs
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from llm_router import answer_question
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import uvicorn
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app = FastAPI(title="大唐双龙传 GraphRAG API", version="1.0.0")
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app = FastAPI(title="武侠三部曲 GraphRAG API", version="1.1.0")
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app.add_middleware(
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CORSMiddleware,
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@@ -37,6 +37,7 @@ class ChatRequest(BaseModel):
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class ImportRequest(BaseModel):
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clear: bool = False # True = 先清空图谱再重新导入
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novels: list[str] | None = None # 默认导入 dtslz/ldj/tlbb
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# ── Endpoints ─────────────────────────────────────────────
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@@ -62,10 +63,10 @@ def stats():
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@app.post("/api/import")
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def import_data(req: ImportRequest = ImportRequest()):
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"""导入所有卷数据到 Neo4j（耗时约 1-3 分钟，请勿重复调用）"""
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"""导入小说数据到 Neo4j（耗时约 1-3 分钟，请勿重复调用）"""
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driver = get_driver()
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try:
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build_graph(driver, clear=req.clear)
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build_all_graphs(driver, novels=req.novels, clear=req.clear)
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stats = get_graph_stats()
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return {"status": "ok", "stats": stats}
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except Exception as e:
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@@ -10,7 +10,8 @@ import json
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from pathlib import Path
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from neo4j import Driver
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DATA_DIR = Path(__file__).parent.parent / "data"
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DATA_DIR_BASE = Path(__file__).parent.parent / "fiction"
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SUPPORTED_NOVELS = ("dtslz", "ldj", "tlbb")
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# ── 工具函数 ──────────────────────────────────────────────
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@@ -26,32 +27,77 @@ def _split_leaders(leader: str) -> list[str]:
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return [p for p in parts if p not in ("未提及", "")]
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def _node_id(novel: str, raw_id: str) -> str:
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return f"{novel}:{raw_id}"
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def _get_data_dir(novel: str) -> Path:
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data_dir = DATA_DIR_BASE / novel / "data"
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if not data_dir.exists():
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raise ValueError(f"小说数据目录不存在: {data_dir}")
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return data_dir
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def _iter_volume_files(data_dir: Path):
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for filepath in sorted(data_dir.glob("vol*.json")):
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stem = filepath.stem # vol01
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if len(stem) >= 5 and stem[:3] == "vol" and stem[3:].isdigit():
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yield int(stem[3:]), filepath
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# ── Schema 初始化 ─────────────────────────────────────────
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def _drop_legacy_constraints(session):
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"""兼容旧版本：移除 Character(name) 唯一约束，改为 (novel, name) 复合唯一约束。"""
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rows = session.run(
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"""
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SHOW CONSTRAINTS
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YIELD name, labelsOrTypes, properties
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RETURN name, labelsOrTypes, properties
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"""
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)
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for row in rows:
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labels = row.get("labelsOrTypes") or []
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properties = row.get("properties") or []
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if labels == ["Character"] and properties == ["name"]:
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constraint_name = row["name"].replace("`", "")
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session.run(f"DROP CONSTRAINT `{constraint_name}` IF EXISTS")
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def setup_schema(driver: Driver):
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with driver.session() as s:
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s.run("CREATE CONSTRAINT IF NOT EXISTS FOR (n:Character) REQUIRE n.name IS UNIQUE")
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_drop_legacy_constraints(s)
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s.run("CREATE CONSTRAINT IF NOT EXISTS FOR (n:Character) REQUIRE (n.novel, n.name) IS UNIQUE")
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s.run("CREATE CONSTRAINT IF NOT EXISTS FOR (n:Location) REQUIRE n.id IS UNIQUE")
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s.run("CREATE CONSTRAINT IF NOT EXISTS FOR (n:Faction) REQUIRE n.id IS UNIQUE")
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s.run("CREATE CONSTRAINT IF NOT EXISTS FOR (n:Event) REQUIRE n.id IS UNIQUE")
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s.run("CREATE INDEX IF NOT EXISTS FOR (e:Event) ON (e.vol)")
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s.run("CREATE INDEX IF NOT EXISTS FOR (e:Event) ON (e.novel)")
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s.run("CREATE INDEX IF NOT EXISTS FOR (c:Character) ON (c.novel)")
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s.run("CREATE INDEX IF NOT EXISTS FOR (l:Location) ON (l.novel)")
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s.run("CREATE INDEX IF NOT EXISTS FOR (f:Faction) ON (f.novel)")
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s.run("CREATE INDEX IF NOT EXISTS FOR ()-[r:VISITED]-() ON (r.vol)")
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s.run("CREATE INDEX IF NOT EXISTS FOR ()-[r:CONTROLS]-() ON (r.vol)")
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# ── 各类型导入 ────────────────────────────────────────────
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def _import_locations(session, locations: list[dict]):
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def _import_locations(session, novel: str, locations: list[dict]):
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for loc in locations:
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raw_id = loc["id"]
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session.run(
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"""
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MERGE (l:Location {id: $id})
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SET l.name = $name,
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l.source_id = $source_id,
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l.novel = $novel,
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l.type = $type,
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l.lat = $lat,
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l.lng = $lng
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""",
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id=loc["id"],
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id=_node_id(novel, raw_id),
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source_id=raw_id,
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novel=novel,
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name=loc["name"],
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type=loc.get("type", ""),
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lat=loc.get("lat"),
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@@ -59,14 +105,22 @@ def _import_locations(session, locations: list[dict]):
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)
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def _import_factions(session, factions: list[dict], vol: int):
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def _import_factions(session, novel: str, factions: list[dict], vol: int):
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for f in factions:
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raw_id = f["id"]
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session.run(
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"""
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MERGE (n:Faction {id: $id})
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SET n.name = $name, n.type = $type, n.color = $color
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SET n.name = $name,
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n.source_id = $source_id,
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n.novel = $novel,
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n.type = $type,
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n.color = $color
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""",
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id=f["id"], name=f["name"],
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id=_node_id(novel, raw_id),
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source_id=raw_id,
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novel=novel,
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name=f["name"],
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type=f.get("type", ""), color=f.get("color", ""),
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)
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@@ -76,9 +130,12 @@ def _import_factions(session, factions: list[dict], vol: int):
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"""
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MATCH (fac:Faction {id: $fid})
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MATCH (loc:Location {id: $lid})
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MERGE (fac)-[:CONTROLS {vol: $vol}]->(loc)
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MERGE (fac)-[:CONTROLS {novel: $novel, vol: $vol}]->(loc)
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""",
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fid=f["id"], lid=loc_id, vol=vol,
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fid=_node_id(novel, raw_id),
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lid=_node_id(novel, loc_id),
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novel=novel,
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vol=vol,
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)
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# Faction → HAS_MEMBER → Character
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@@ -87,36 +144,44 @@ def _import_factions(session, factions: list[dict], vol: int):
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continue
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session.run(
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"""
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MERGE (c:Character {name: $name})
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MERGE (c:Character {novel: $novel, name: $name})
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WITH c
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MATCH (fac:Faction {id: $fid})
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MERGE (fac)-[:HAS_MEMBER {vol: $vol}]->(c)
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MERGE (fac)-[:HAS_MEMBER {novel: $novel, vol: $vol}]->(c)
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""",
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name=figure, fid=f["id"], vol=vol,
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novel=novel,
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name=figure,
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fid=_node_id(novel, raw_id),
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vol=vol,
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)
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# Character → LEADS → Faction
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for leader_name in _split_leaders(f.get("leader", "")):
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session.run(
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"""
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MERGE (c:Character {name: $name})
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MERGE (c:Character {novel: $novel, name: $name})
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WITH c
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MATCH (fac:Faction {id: $fid})
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MERGE (c)-[:LEADS {vol: $vol}]->(fac)
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MERGE (c)-[:LEADS {novel: $novel, vol: $vol}]->(fac)
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""",
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name=leader_name, fid=f["id"], vol=vol,
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novel=novel,
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name=leader_name,
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fid=_node_id(novel, raw_id),
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vol=vol,
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)
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def _import_routes(session, routes: list[dict], vol: int):
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def _import_routes(session, novel: str, routes: list[dict], vol: int):
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for route in routes:
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char_color = route.get("color", "")
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char_names = _split_characters(route["character"])
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for char_name in char_names:
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session.run(
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"MERGE (c:Character {name: $name}) SET c.color = $color",
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name=char_name, color=char_color,
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"MERGE (c:Character {novel: $novel, name: $name}) SET c.color = $color",
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novel=novel,
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name=char_name,
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color=char_color,
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)
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for wp in route.get("route", []):
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@@ -128,28 +193,37 @@ def _import_routes(session, routes: list[dict], vol: int):
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session.run(
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"""
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MATCH (c:Character {name: $char})
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MATCH (c:Character {novel: $novel, name: $char})
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MATCH (l:Location {id: $lid})
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MERGE (c)-[v:VISITED {vol: $vol, chapter: $chapter}]->(l)
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MERGE (c)-[v:VISITED {novel: $novel, vol: $vol, chapter: $chapter}]->(l)
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SET v.event = $event
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""",
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char=char_name, lid=loc_id,
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novel=novel,
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char=char_name,
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lid=_node_id(novel, loc_id),
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vol=vol, chapter=chapter, event=event,
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)
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def _import_events(session, events: list[dict], vol: int):
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def _import_events(session, novel: str, events: list[dict], vol: int):
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for i, evt in enumerate(events):
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event_id = f"v{vol:02d}_e{i:03d}"
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event_id = _node_id(novel, f"v{vol:02d}_e{i:03d}")
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chapter = evt.get("chapter", 0)
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description = evt.get("event", "")
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session.run(
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"""
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MERGE (e:Event {id: $id})
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SET e.vol = $vol, e.chapter = $chapter, e.description = $description
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SET e.novel = $novel,
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e.vol = $vol,
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e.chapter = $chapter,
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e.description = $description
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""",
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id=event_id, vol=vol, chapter=chapter, description=description,
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id=event_id,
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novel=novel,
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vol=vol,
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chapter=chapter,
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description=description,
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)
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# 只在有命名地点 id 时建立关系（lat/lng 条目跳过）
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@@ -161,13 +235,17 @@ def _import_events(session, events: list[dict], vol: int):
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MATCH (l:Location {id: $lid})
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MERGE (e)-[:OCCURRED_AT]->(l)
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""",
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eid=event_id, lid=loc_ref,
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eid=event_id,
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lid=_node_id(novel, loc_ref),
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)
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# ── 主入口 ────────────────────────────────────────────────
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def build_graph(driver: Driver, clear: bool = False):
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def build_graph(driver: Driver, novel: str, clear: bool = False):
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if novel not in SUPPORTED_NOVELS:
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raise ValueError(f"不支持的小说标识: {novel}，可选: {', '.join(SUPPORTED_NOVELS)}")
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if clear:
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print("Clearing existing graph data...")
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with driver.session() as s:
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@@ -176,22 +254,30 @@ def build_graph(driver: Driver, clear: bool = False):
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print("Setting up schema constraints and indexes...")
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setup_schema(driver)
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data_dir = _get_data_dir(novel)
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imported = 0
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for vol_num in range(1, 64):
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filepath = DATA_DIR / f"vol{vol_num:02d}.json"
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if not filepath.exists():
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continue
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print(f"Importing novel: {novel} ({data_dir})")
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for vol_num, filepath in _iter_volume_files(data_dir):
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with open(filepath, encoding="utf-8") as f:
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data = json.load(f)
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with driver.session() as session:
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_import_locations(session, data.get("locations", []))
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_import_factions(session, data.get("factions", []), vol_num)
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_import_routes(session, data.get("character_routes", []), vol_num)
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_import_events(session, data.get("key_events", []), vol_num)
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_import_locations(session, novel, data.get("locations", []))
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_import_factions(session, novel, data.get("factions", []), vol_num)
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_import_routes(session, novel, data.get("character_routes", []), vol_num)
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_import_events(session, novel, data.get("key_events", []), vol_num)
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imported += 1
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print(f" [✓] vol{vol_num:02d} imported")
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print(f" [✓] {novel}/vol{vol_num:02d} imported")
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print(f"\nDone. Imported {imported} volumes.")
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print(f"Done. Imported {imported} volumes for {novel}.\n")
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def build_all_graphs(driver: Driver, novels: list[str] | None = None, clear: bool = False):
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selected = novels or list(SUPPORTED_NOVELS)
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if not selected:
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raise ValueError("novels 不能为空")
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for i, novel in enumerate(selected):
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build_graph(driver, novel=novel, clear=(clear and i == 0))
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@@ -1,44 +1,49 @@
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SCHEMA_DESCRIPTION = """
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大唐双龙传知识图谱 Schema（Neo4j）：
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武侠三部曲知识图谱 Schema（Neo4j）：
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小说标识（novel）：
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- dtslz = 大唐双龙传
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- ldj = 鹿鼎记
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- tlbb = 天龙八部
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节点类型：
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- Character {name, color}
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主要人物：寇仲、徐子陵、宇文化及、傅君婥、宋师道、李靖、石青璇、李密、李子通、
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杜伏威、跋锋寒、李世民、李渊、宋缺、寇仲、毕玄、阴后
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- Character {novel, name, color}
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同名人物在不同小说中会按 novel 隔离
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- Location {id, name, type, lat, lng}
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- Location {id, novel, source_id, name, type, lat, lng}
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type 取值：city / town / waterway / landmark / grassland / forest / region
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主要城市：扬州(yangzhou)、洛阳(luoyang)、长安/大兴(daxing)、丹阳(danyang)、
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梁都、历阳(liyang)、江陵
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id 为全局唯一键，格式：{novel}:{source_id}
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- Faction {id, name, type, color}
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- Faction {id, novel, source_id, name, type, color}
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type 取值：朝廷 / 门阀 / 义军 / 游牧政权 / 江湖势力 / 地方军阀 / 帮会 / 外族
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主要势力：隋朝(sui)、李阀(li_clan)、宋阀(song_clan)、宇文阀(yuwen)、
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瓦岗军(wagang_army)、突厥(turks)、慈航静斋、阴癸派
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id 为全局唯一键，格式：{novel}:{source_id}
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- Event {id, vol, chapter, description}
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vol 是卷号（整数 1-63），chapter 是章节号
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- Event {id, novel, vol, chapter, description}
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id 为全局唯一键，格式：{novel}:vXX_eYYY
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vol 是该小说内部卷号（整数），chapter 是章节号
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关系类型：
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- (Character)-[:VISITED {vol, chapter, event}]->(Location)
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- (Character)-[:VISITED {novel, vol, chapter, event}]->(Location)
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人物在某卷某章到访某地
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- (Faction)-[:CONTROLS {vol}]->(Location)
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- (Faction)-[:CONTROLS {novel, vol}]->(Location)
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势力在某卷控制某地
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- (Faction)-[:HAS_MEMBER {vol}]->(Character)
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- (Faction)-[:HAS_MEMBER {novel, vol}]->(Character)
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势力在某卷拥有某成员
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- (Character)-[:LEADS {vol}]->(Faction)
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- (Character)-[:LEADS {novel, vol}]->(Faction)
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人物在某卷领导某势力
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- (Event)-[:OCCURRED_AT]->(Location)
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事件发生于某地
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注意：vol 属性用整数表示（如 vol=1 代表第一卷，vol=20 代表第二十卷）
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查询建议：
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- 用户明确提到小说名时，务必加 novel 过滤
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- 未指定小说时，可跨小说查询
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"""
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|
||||
CYPHER_SYSTEM_PROMPT = f"""你是大唐双龙传知识图谱的 Cypher 查询专家。
|
||||
CYPHER_SYSTEM_PROMPT = f"""你是武侠三部曲知识图谱的 Cypher 查询专家。
|
||||
|
||||
{SCHEMA_DESCRIPTION}
|
||||
|
||||
@@ -49,26 +54,30 @@ CYPHER_SYSTEM_PROMPT = f"""你是大唐双龙传知识图谱的 Cypher 查询专
|
||||
4. 默认加 LIMIT 30，除非用户指定数量
|
||||
5. 使用 DISTINCT 去重
|
||||
6. 属性名用 n.name、r.vol 格式，不要用整个节点
|
||||
7. 如果问题完全无法用图谱回答，只输出单词：UNSUPPORTED
|
||||
7. 若问题指定小说，优先使用 novel 过滤：
|
||||
- 大唐双龙传 => novel = "dtslz"
|
||||
- 鹿鼎记 => novel = "ldj"
|
||||
- 天龙八部 => novel = "tlbb"
|
||||
8. 如果问题完全无法用图谱回答，只输出单词：UNSUPPORTED
|
||||
|
||||
示例：
|
||||
Q: 寇仲去过哪些地方？
|
||||
A: MATCH (c:Character {{name: "寇仲"}})-[v:VISITED]->(l:Location) RETURN DISTINCT l.name, l.type, min(v.vol) AS first_vol ORDER BY first_vol LIMIT 30
|
||||
A: MATCH (c:Character {{novel: "dtslz", name: "寇仲"}})-[v:VISITED]->(l:Location) RETURN DISTINCT l.name, l.type, min(v.vol) AS first_vol ORDER BY first_vol LIMIT 30
|
||||
|
||||
Q: 第30卷时宇文阀控制哪些城市？
|
||||
A: MATCH (f:Faction {{name: "宇文阀"}})-[r:CONTROLS]->(l:Location) WHERE r.vol <= 30 AND l.type = "city" RETURN DISTINCT l.name, r.vol ORDER BY r.vol LIMIT 30
|
||||
A: MATCH (f:Faction {{novel: "dtslz", name: "宇文阀"}})-[r:CONTROLS]->(l:Location) WHERE r.vol <= 30 AND l.type = "city" RETURN DISTINCT l.name, r.vol ORDER BY r.vol LIMIT 30
|
||||
|
||||
Q: 扬州发生过哪些重要事件？
|
||||
A: MATCH (e:Event)-[:OCCURRED_AT]->(l:Location {{name: "扬州"}}) RETURN e.description, e.vol, e.chapter ORDER BY e.vol, e.chapter LIMIT 30
|
||||
A: MATCH (e:Event {{novel: "dtslz"}})-[:OCCURRED_AT]->(l:Location {{novel: "dtslz", name: "扬州"}}) RETURN e.description, e.vol, e.chapter ORDER BY e.vol, e.chapter LIMIT 30
|
||||
|
||||
Q: 谁领导过瓦岗军？
|
||||
A: MATCH (c:Character)-[r:LEADS]->(f:Faction {{name: "瓦岗军"}}) RETURN DISTINCT c.name, r.vol ORDER BY r.vol LIMIT 30
|
||||
A: MATCH (c:Character)-[r:LEADS]->(f:Faction {{novel: "dtslz", name: "瓦岗军"}}) RETURN DISTINCT c.name, r.vol ORDER BY r.vol LIMIT 30
|
||||
|
||||
Q: 寇仲和哪些势力有过关联？
|
||||
A: MATCH (c:Character {{name: "寇仲"}})-[:VISITED]->(l:Location)<-[:CONTROLS]-(f:Faction) RETURN DISTINCT f.name, f.type LIMIT 30
|
||||
Q: 韦小宝加入过哪些势力？
|
||||
A: MATCH (c:Character {{novel: "ldj", name: "韦小宝"}})<-[:HAS_MEMBER]-(f:Faction) RETURN DISTINCT f.name, f.type LIMIT 30
|
||||
"""
|
||||
|
||||
ANSWER_SYSTEM_PROMPT = """你是大唐双龙传的知识问答助手，熟悉小说中的人物、势力、地点和事件。
|
||||
ANSWER_SYSTEM_PROMPT = """你是武侠三部曲（大唐双龙传、鹿鼎记、天龙八部）的知识问答助手，熟悉小说中的人物、势力、地点和事件。
|
||||
|
||||
请根据知识图谱的查询结果，用中文给出准确、自然的回答：
|
||||
- 直接回答问题，语言简洁流畅
|
||||
|
||||
@@ -5,25 +5,29 @@
|
||||
用法:
|
||||
python run_import.py # 增量导入（MERGE，不删除现有数据）
|
||||
python run_import.py --clear # 清空图谱后全量重新导入
|
||||
python run_import.py ldj # 仅导入鹿鼎记
|
||||
python run_import.py dtslz tlbb --clear # 清空后导入指定小说
|
||||
"""
|
||||
|
||||
import sys
|
||||
from dotenv import load_dotenv
|
||||
from graph_query import get_driver
|
||||
from graph_builder import build_graph
|
||||
from graph_builder import build_all_graphs, SUPPORTED_NOVELS
|
||||
|
||||
load_dotenv()
|
||||
|
||||
|
||||
def main():
|
||||
clear = "--clear" in sys.argv
|
||||
novels = [arg for arg in sys.argv[1:] if not arg.startswith("--")]
|
||||
selected = novels or list(SUPPORTED_NOVELS)
|
||||
|
||||
print("Connecting to Neo4j...")
|
||||
driver = get_driver()
|
||||
driver.verify_connectivity()
|
||||
print("Connected.\n")
|
||||
|
||||
build_graph(driver, clear=clear)
|
||||
build_all_graphs(driver, novels=selected, clear=clear)
|
||||
|
||||
print("\nGraph stats:")
|
||||
from graph_query import get_graph_stats
|
||||
|
||||
Reference in New Issue
Block a user