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AIEC-server/docs/troubleshooting-graph-rag.md
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# Graph-RAG-Agent 集成问题排查
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## 已完成的修改
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1. **chat-service.js 已修改**:
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- 服务地址改为 `http://localhost:8000`
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- API 接口路径已更新(`/qa/ask` → `/chat`)
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- 请求/响应格式已适配
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- 移除了强制的认证要求
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2. **修复了递归调用问题**:
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- main.js 中的事件监听器不再导致递归
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## 当前问题及解决方案
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### 问题1:ChatAPIService 未定义
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**症状**:`Cannot read properties of undefined (reading 'sendMessageStream')`
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**可能原因**:
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1. 脚本加载顺序问题
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2. 认证相关的依赖未满足
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3. CORS 跨域问题
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**解决步骤**:
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1. 确保 graph-rag-agent 服务正在运行:
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```bash
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cd ~/graph-rag-agent
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python -m uvicorn server.main:app --reload --host 0.0.0.0 --port 8000
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```
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2. 使用本地 HTTP 服务器访问前端(避免 file:// 协议的限制):
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```bash
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cd ~/yundage-backserver-test
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./start-local.sh
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```
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3. 访问测试页面验证 API:
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```
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http://localhost:3000/test-graph-rag.html
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```
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### 问题2:认证依赖
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**症状**:TokenManager 相关错误
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**解决方案**:
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- chat-service.js 已修改为可选的 TokenManager 依赖
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- 如果不需要认证,可以直接使用
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### 测试步骤
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1. **验证 graph-rag-agent 服务**:
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```bash
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curl http://localhost:8000/
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```
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2. **测试同步 API**:
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```bash
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curl -X POST http://localhost:8000/chat \
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-H "Content-Type: application/json" \
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-d '{
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"message": "什么是数字化转型?",
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"session_id": "test_123",
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"agent_type": "naive_rag_agent",
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"debug": false
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}'
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```
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3. **使用测试页面**:
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- 打开 `http://localhost:3000/test-graph-rag.html`
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- 测试服务状态、同步消息和流式消息
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## 注意事项
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1. **CORS 配置**:graph-rag-agent 需要允许来自前端的跨域请求(localhost:3000 或 file://)
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2. **Neo4j 依赖**:确保 Neo4j 数据库正在运行并包含必要的数据
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3. **会话管理**:当前实现依赖浏览器本地存储
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## 快速启动命令
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```bash
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# 终端1:启动 graph-rag-agent(Python后端)
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cd ~/graph-rag-agent
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python -m uvicorn server.main:app --reload --host 0.0.0.0 --port 8000
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# 终端2:启动前端服务器(可选,用于避免CORS问题)
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cd ~/yundage-backserver-test
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./start-local.sh
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# 访问:http://localhost:3000
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# 或者直接用浏览器打开 index.html 文件
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```
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## 端口说明
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- **8000**: graph-rag-agent (Python FastAPI 后端)
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- **8080**: 原 Java 后端(现在不使用)
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- **3000**: 前端静态文件服务器(可选)
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