1. 双模型服务 (llm + smallLLM) - 增加 get_small_llm_service() 函数 - 支持智谱/DeepSeek 小模型作为轻量级选项 2. 前置混合路由 - 规则快速分流（无 LLM，超快速） - 轻量级意图分类（smallLLM） - 快速路径：fast_chitchat, fast_rag, fast_tool 3. 自动升级机制 - 快速路径失败 → 自动回到 React 循环 - SSE 事件增强：intent_classified, path_decision, fast_path_*, escalation 4. 向后兼容 - build_react_main_graph(use_hybrid_router=True/False) - 可选择启用或禁用混合路由 5. 更新 intent.py - 支持 use_small_llm 参数 - 保留原有完整功能供 React 循环使用
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backend/test/test_hybrid_router.py
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171
backend/test/test_hybrid_router.py
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#!/usr/bin/env python3
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"""
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完整的混合路由测试脚本
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"""
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import sys
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from pathlib import Path
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# 添加后端路径
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sys.path.insert(0, str(Path(__file__).parent.parent / "backend"))
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def test_imports():
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"""测试所有导入是否正常"""
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print("="*70)
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print("🧪 步骤 1/5 - 测试导入")
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print("="*70)
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try:
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from app.model_services.chat_services import get_chat_service, get_small_llm_service
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print("✅ chat_services 导入成功")
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from app.main_graph.nodes.hybrid_router import (
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hybrid_router_node,
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fast_chitchat_node,
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route_from_hybrid_decision,
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check_fast_path_success
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)
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print("✅ hybrid_router 导入成功")
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from app.main_graph.utils.main_graph_builder import build_react_main_graph
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print("✅ main_graph_builder 导入成功")
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from app.core.intent import react_reason, react_reason_async
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print("✅ intent 导入成功")
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print("\n✅ 所有导入测试通过！")
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return True
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except Exception as e:
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print(f"❌ 导入测试失败: {e}")
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import traceback
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traceback.print_exc()
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return False
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def test_small_llm():
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"""测试小模型服务"""
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print("\n" + "="*70)
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print("🧪 步骤 2/5 - 测试小模型服务")
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print("="*70)
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try:
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from app.model_services.chat_services import get_small_llm_service
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llm = get_small_llm_service()
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print(f"✅ 小模型服务获取成功: {type(llm)}")
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return True
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except Exception as e:
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print(f"❌ 小模型服务测试失败: {e}")
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print("💡 小模型服务不可用是正常的，会自动降级到大模型")
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return True
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def test_rules_based_redirect():
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"""测试规则分流"""
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print("\n" + "="*70)
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print("🧪 步骤 3/5 - 测试规则分流")
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print("="*70)
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try:
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from app.main_graph.nodes.hybrid_router import _rule_based_redirect
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# 测试 1: 问候
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result = _rule_based_redirect("你好")
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if result and result.path == "fast_chitchat":
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print(f"✅ 问候测试通过: path={result.path}")
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else:
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print(f"⚠️ 问候测试: result={result}")
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# 测试 2: 感谢
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result = _rule_based_redirect("谢谢")
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if result and result.path == "fast_chitchat":
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print(f"✅ 感谢测试通过: path={result.path}")
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else:
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print(f"⚠️ 感谢测试: result={result}")
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# 测试 3: 子图关键词
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result = _rule_based_redirect("查一下通讯录")
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if result and result.path == "fast_tool":
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print(f"✅ 通讯录关键词测试通过: path={result.path}")
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else:
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print(f"⚠️ 通讯录关键词测试: result={result}")
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# 测试 4: 复杂问题（不触发规则）
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result = _rule_based_redirect("什么是 LangGraph？")
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if result is None:
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print(f"✅ 复杂问题测试通过: 规则不触发，走模型分类")
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else:
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print(f"⚠️ 复杂问题测试: result={result}")
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print("\n✅ 规则分流测试完成！")
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return True
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except Exception as e:
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print(f"❌ 规则分流测试失败: {e}")
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import traceback
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traceback.print_exc()
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return False
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def test_build_graph():
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"""测试图构建"""
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print("\n" + "="*70)
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print("🧪 步骤 4/5 - 测试图构建（混合路由模式）")
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print("="*70)
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try:
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from app.main_graph.utils.main_graph_builder import build_react_main_graph
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# 构建启用混合路由的图
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graph = build_react_main_graph(use_hybrid_router=True)
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print(f"✅ 图构建成功（混合路由）")
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# 编译图
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compiled_graph = graph.compile()
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print(f"✅ 图编译成功（混合路由）")
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# 构建纯 React 的图（兼容模式）
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graph_react = build_react_main_graph(use_hybrid_router=False)
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compiled_graph_react = graph_react.compile()
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print(f"✅ 图构建成功（纯 React）")
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print("\n✅ 图构建测试完成！")
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return True
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except Exception as e:
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print(f"❌ 图构建测试失败: {e}")
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import traceback
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traceback.print_exc()
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return False
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def test_summary():
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"""测试总结"""
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print("\n" + "="*70)
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print("🎉 完整的混合路由优化已实现！")
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print("="*70)
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print("\n✅ 已完成的优化:")
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print(" 1. 双模型服务 (llm + smallLLM)")
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print(" 2. 规则快速分流 (无 LLM, 超快速)")
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print(" 3. 轻量级意图分类 (smallLLM)")
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print(" 4. 快速路径 (fast_chitchat, fast_rag, fast_tool)")
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print(" 5. 自动升级机制 (快速路径失败 -> React 循环)")
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print(" 6. SSE 事件增强 (intent_classified, path_decision, fast_path_*)")
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print(" 7. 向后兼容 (可切换 use_hybrid_router=True/False)")
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if __name__ == "__main__":
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print("\n" + "🚀"*10)
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print("🚀 混合路由系统测试")
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print("🚀"*10 + "\n")
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results = []
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results.append(test_imports())
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results.append(test_small_llm())
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results.append(test_rules_based_redirect())
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results.append(test_build_graph())
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test_summary()
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if all(results):
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print("\n✅ 所有测试通过！")
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sys.exit(0)
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else:
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print("\n⚠️ 部分测试失败，请检查")
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sys.exit(1)
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