对话ds

chat/.env.example

@@ -0,0 +1,2 @@
+OPENAI_API_KEY=你的API密钥
+DEEPSEEK_API_KEY='你的API密钥'

chat/api/v1/ai_chat.py

@@ -4,27 +4,20 @@ from fastapi import APIRouter, Depends, Request, Query
 from fastapi.responses import StreamingResponse
 from sqlalchemy.orm import Session
 from typing import List
-from datetime import datetime
 
 from pydantic import BaseModel, SecretStr
 from langchain.chains import ConversationChain
-from langchain_community.chat_models import ChatOpenAI
 
-from api.v1.vo import MessageVO, ConversationsVO
+from api.v1.vo import MessageVO
 from deps.auth import get_current_user
 from services.chat_service import ChatDBService
 from db.session import get_db
-from models.ai import ChatConversation, ChatMessage, MessageType
+from models.ai import ChatConversation, ChatMessage
 from utils.resp import resp_success, Response
 from langchain_deepseek import ChatDeepSeek
 
 router = APIRouter()
 
-class ChatRequest(BaseModel):
-    prompt: str
-
-
-
 def get_deepseek_llm(api_key: SecretStr, model: str):
     # deepseek 兼容 OpenAI API，需指定 base_url
     return ChatDeepSeek(
@@ -38,26 +31,22 @@ async def chat_stream(request: Request, user=Depends(get_current_user), db: Sess
     body = await request.json()
     content = body.get('content')
     conversation_id = body.get('conversation_id')
-    print(content, 'content')
     model = 'deepseek-chat'
     api_key = os.getenv("DEEPSEEK_API_KEY")
-    openai_api_base = "https://api.deepseek.com/v1"
-    llm = get_deepseek_llm(api_key, model)
+    llm = get_deepseek_llm(SecretStr(api_key), model)
 
     if not content or not isinstance(content, str):
         from fastapi.responses import JSONResponse
         return JSONResponse({"error": "content不能为空"}, status_code=400)
 
     user_id = user["user_id"]
-    print(conversation_id, 'conversation_id')
-    # 1. 获取或新建对话
+    # 1. 获取对话
     try:
-        conversation = ChatDBService.get_or_create_conversation(db, conversation_id, user_id, model, content)
+        conversation = ChatDBService.get_conversation(db, conversation_id)
+        conversation = db.merge(conversation)  # ✅ 防止 DetachedInstanceError
     except ValueError as e:
-        print(23232)
         from fastapi.responses import JSONResponse
         return JSONResponse({"error": str(e)}, status_code=400)
-    print(conversation, 'dsds')
     # 2. 插入当前消息
     ChatDBService.add_message(db, conversation, user_id, content)
     context = [
@@ -65,13 +54,16 @@ async def chat_stream(request: Request, user=Depends(get_current_user), db: Sess
     ]
     # 3. 查询历史消息，组装上下文
     history = ChatDBService.get_history(db, conversation.id)
+    # === 新增：如果只有一条消息，更新 title ===
+    if len(history) == 1:
+        ChatDBService.update_conversation_title(db, conversation.id, content[:255])
+
     for msg in history:
         # 假设 msg.type 存储的是 'user' 或 'assistant'
         # role = msg.type if msg.type in ("user", "assistant") else "user"
         context.append((msg.type, msg.content))
-    print('context', context)
-    ai_reply = ""
 
+    ai_reply = ""
     async def event_generator():
         nonlocal ai_reply
         async for chunk in llm.astream(context):
@@ -88,6 +80,13 @@ async def chat_stream(request: Request, user=Depends(get_current_user), db: Sess
 
     return StreamingResponse(event_generator(), media_type='text/event-stream')
 
+@router.post("/conversations")
+def create_conversation(db: Session = Depends(get_db), user=Depends(get_current_user),):
+    user_id = user["user_id"]
+    model = 'deepseek-chat'
+    conversation = ChatDBService.get_or_create_conversation(db, None, user_id, model, '新对话')
+    return resp_success(data=conversation.id)
+    
 @router.get('/conversations')
 async def get_conversations(
     db: Session = Depends(get_db),

chat/crud/ai_api_key.py

@@ -1,18 +0,0 @@
-from fastapi import HTTPException
-from sqlalchemy.orm import Session
-
-from crud.base import CRUDBase
-from models.ai import AIApiKey  # SQLAlchemy模型
-from schemas.ai_api_key import AIApiKeyCreate, AIApiKeyUpdate
-
-# 继承通用CRUD基类，指定模型和Pydantic类型
-class CRUDApiKey(CRUDBase[AIApiKey, AIApiKeyCreate, AIApiKeyUpdate]):
-    # 如有特殊逻辑，可重写父类方法（如创建时验证平台唯一性）
-    def create(self, db: Session, *, obj_in: AIApiKeyCreate):
-        # 示例：验证平台+名称唯一
-        if self.get_by(db, platform=obj_in.platform, name=obj_in.name):
-            raise HTTPException(status_code=400, detail="该平台下名称已存在")
-        return super().create(db, obj_in=obj_in)
-
-# 创建CRUD实例
-ai_api_key_crud = CRUDApiKey(AIApiKey)

chat/main.py

@@ -3,7 +3,6 @@ from fastapi import FastAPI
 from dotenv import load_dotenv
 from api.v1 import ai_chat
 from fastapi.middleware.cors import CORSMiddleware
-from routers.ai_api_key import router as ai_api_key_router
 
 # 加载.env环境变量，优先项目根目录
 load_dotenv()
@@ -25,7 +24,6 @@ app.add_middleware(
 
 # 注册路由
 app.include_router(ai_chat.router, prefix="/chat/api/v1", tags=["chat"])
-app.include_router(ai_api_key_router, tags=["chat"])
 
 # 健康检查
 @app.get("/ping")

chat/requirements.txt

@@ -1,3 +1,6 @@
-fastapi
-uvicorn[standard]
-langchain-openai
+fastapi==0.116.1
+uvicorn[standard]==0.35.0
+langchain-openai==0.3.28
+langchain-deepseek==0.1.3
+langchain==0.3.26
+langchain-community==0.3.26

chat/routers/ai_api_key.py

@@ -1,13 +0,0 @@
-from schemas.ai_api_key import AIApiKeyCreate, AIApiKeyUpdate, AIApiKeyRead
-from crud.ai_api_key import ai_api_key_crud
-from routers.base import GenericRouter
-
-# 继承通用路由基类，传入参数即可生成所有CRUD接口
-router = GenericRouter(
-    crud=ai_api_key_crud,
-    create_schema=AIApiKeyCreate,
-    update_schema=AIApiKeyUpdate,
-    read_schema=AIApiKeyRead,
-    prefix="/chat/api/ai-api-keys",
-    tags=["AI API密钥"]
-)

chat/schemas/ai_chat.py

@@ -0,0 +1,10 @@
+from pydantic import BaseModel
+
+class ChatCreate(BaseModel):
+    pass
+
+class Chat(ChatCreate):
+    id: int
+
+    class Config:
+        orm_mode = True

chat/services/chat_service.py

@@ -4,10 +4,13 @@ from datetime import datetime
 from models.ai import ChatConversation, ChatMessage, MessageType
 
 class ChatDBService:
+    @staticmethod
+    def get_conversation(db: Session, conversation_id: int):
+        return db.query(ChatConversation).filter(ChatConversation.id == conversation_id).first()
+
     @staticmethod
     def get_or_create_conversation(db: Session, conversation_id: int | None, user_id: int, model: str, content: str) -> ChatConversation:
         if not conversation_id:
-            print(conversation_id, 'conversation_id')
             conversation = ChatConversation(
                 title=content,
                 user_id=user_id,
@@ -32,6 +35,17 @@ class ChatDBService:
                 raise ValueError("无效的conversation_id")
             return conversation
 
+    @staticmethod
+    def update_conversation_title(db, conversation_id: int, title: str):
+        conversation = db.query(ChatConversation).filter(ChatConversation.id == conversation_id).first()
+        if conversation:
+            conversation.title = title[:255]  # 保证不超过255字符
+            db.add(conversation)
+            db.commit()
+            return conversation
+        else:
+            raise ValueError("Conversation not found")
+
     @staticmethod
     def add_message(db: Session, conversation: ChatConversation, user_id: int, content: str) -> ChatMessage:
         message = ChatMessage(

chat/utils/resp.py

@@ -12,5 +12,5 @@ class Response(BaseModel, Generic[T]):
 def resp_success(data: T, message: str = "success") -> Response[T]:
     return Response(code=0, message=message, data=data)
 
-def resp_error(message="error", code=1) -> Response[None]:
+def resp_error(message="error", code=1) -> Response[T]:
     return Response(code=code, message=message, data=None)

web/apps/web-antd/src/api/ai/chat.ts

@@ -5,6 +5,16 @@ export async function getConversations() {
   return await res.json();
 }
 
+export async function createConversation() {
+  const response = await fetchWithAuth('/chat/api/v1/conversations', {
+    method: 'POST',
+  });
+  if (!response.ok) {
+    throw new Error('创建对话失败');
+  }
+  return await response.json();
+}
+
 export async function getMessages(conversationId: number) {
   const res = await fetchWithAuth(
     `/chat/api/v1/messages?conversation_id=${conversationId}`,

web/apps/web-antd/src/locales/langs/en-US/ai.json

@@ -1,6 +1,6 @@
 {
   "title": "AI Management",
-  "ai_api_key": {
+  "api_key": {
     "title": "KEY Management",
     "name": "KEY Management"
   },

web/apps/web-antd/src/locales/langs/zh-CN/ai.json

@@ -1,6 +1,6 @@
 {
   "title": "AI大模型",
-  "ai_api_key": {
+  "api_key": {
     "title": "API 密钥",
     "name": "API 密钥"
   },

web/apps/web-antd/src/views/ai/api_key/list.vue

@@ -133,7 +133,7 @@ function refreshGrid() {
           v-permission="'ai:ai_api_key:create'"
         >
           <Plus class="size-5" />
-          {{ $t('ui.actionTitle.create', [$t('ai.ai_api_key.name')]) }}
+          {{ $t('ui.actionTitle.create', [$t('ai.api_key.name')]) }}
         </Button>
       </template>
     </Grid>

web/apps/web-antd/src/views/ai/api_key/modules/form.vue

@@ -20,8 +20,8 @@ const formModel = new AiAIApiKeyModel();
 const formData = ref<AiAIApiKeyApi.AiAIApiKey>();
 const getTitle = computed(() => {
   return formData.value?.id
-    ? $t('ui.actionTitle.edit', [$t('ai.ai_api_key.name')])
-    : $t('ui.actionTitle.create', [$t('ai.ai_api_key.name')]);
+    ? $t('ui.actionTitle.edit', [$t('ai.api_key.name')])
+    : $t('ui.actionTitle.create', [$t('ai.api_key.name')]);
 });
 
 const [Form, formApi] = useVbenForm({

web/apps/web-antd/src/views/ai/chat/index.vue

@@ -14,16 +14,21 @@ import {
   Select,
 } from 'ant-design-vue';
 
-import { fetchAIStream, getConversations, getMessages } from '#/api/ai/chat';
+import {
+  createConversation,
+  fetchAIStream,
+  getConversations,
+  getMessages,
+} from '#/api/ai/chat';
 
 interface Message {
-  id: null | number;
+  id: number;
   type: 'assistant' | 'user';
   content: string;
 }
 
 interface ChatItem {
-  id: null | number;
+  id: number;
   title: string;
   lastMessage: string;
 }
@@ -60,14 +65,13 @@ async function selectChat(id: number) {
   nextTick(scrollToBottom);
 }
 
-function handleNewChat() {
-  const newId = null;
-  chatList.value.unshift({
-    id: newId,
-    title: `新对话${chatList.value.length + 1}`,
-    lastMessage: '',
-  });
-  selectedChatId.value = newId;
+async function handleNewChat() {
+  // 调用后端新建对话
+  const { data } = await createConversation();
+  // 刷新对话列表
+  await fetchConversations();
+  // 选中新建的对话
+  selectedChatId.value = data;
   messages.value = [];
   nextTick(scrollToBottom);
 }
@@ -195,7 +199,7 @@ onMounted(() => {
             />
           </div>
         </div>
-        <div class="chat-messages" style="height: 100%;" ref="messagesRef">
+        <div class="chat-messages" style="height: 100%" ref="messagesRef">
           <div
             v-for="msg in messages"
             :key="msg.id"