update:新增用户API配置提示 优化大纲全新/续写的分批生成

backend/app/api/outlines.py

@@ -2,7 +2,7 @@
 from fastapi import APIRouter, Depends, HTTPException
 from sqlalchemy.ext.asyncio import AsyncSession
 from sqlalchemy import select, func, delete
-from typing import List
+from typing import List, AsyncGenerator, Dict, Any
 import json
 
 from app.database import get_db
@@ -23,6 +23,7 @@ from app.services.ai_service import AIService
 from app.services.prompt_service import prompt_service
 from app.logger import get_logger
 from app.api.settings import get_user_ai_service
+from app.utils.sse_response import SSEResponse, create_sse_response
 
 router = APIRouter(prefix="/outlines", tags=["大纲管理"])
 logger = get_logger(__name__)
@@ -479,27 +480,21 @@ async def _continue_outline(
     db: AsyncSession,
     user_ai_service: AIService
 ) -> OutlineListResponse:
-    """续写大纲"""
+    """续写大纲 - 分批生成，每批5章"""
     logger.info(f"续写大纲 - 项目: {project.id}, 已有: {len(existing_outlines)} 章")
     
     # 分析已有大纲
     current_chapter_count = len(existing_outlines)
     last_chapter_number = existing_outlines[-1].order_index
     
-    # 获取最近2章的剧情
+    # 计算需要生成的总章数和批次
-    recent_outlines = existing_outlines[-2:] if len(existing_outlines) >= 2 else existing_outlines
+    total_chapters_to_generate = request.chapter_count
-    recent_plot = "\n".join([
+    batch_size = 5  # 每批生成5章
-        f"第{o.order_index}章《{o.title}》: {o.content}"
+    total_batches = (total_chapters_to_generate + batch_size - 1) // batch_size
-        for o in recent_outlines
-    ])
-    # logger.debug(f"最近三章内容：{recent_plot}")
-    # 全部章节概览
-    all_chapters_brief = "\n".join([
-        f"第{o.order_index}章: {o.title}"
-        for o in existing_outlines
-    ])
     
-    # 获取角色信息
+    logger.info(f"分批生成计划: 总共{total_chapters_to_generate}章，分{total_batches}批，每批{batch_size}章")
+    
+    # 获取角色信息（所有批次共用）
     characters_result = await db.execute(
         select(Character).where(Character.project_id == project.id)
     )
@@ -518,28 +513,61 @@ async def _continue_outline(
     }
     stage_instruction = stage_instructions.get(request.plot_stage, "")
     
+    # 批量生成
+    all_new_outlines = []
+    current_start_chapter = last_chapter_number + 1
+    
+    for batch_num in range(total_batches):
+        # 计算当前批次的章节数
+        remaining_chapters = total_chapters_to_generate - len(all_new_outlines)
+        current_batch_size = min(batch_size, remaining_chapters)
+        
+        logger.info(f"开始生成第{batch_num + 1}/{total_batches}批，章节范围: {current_start_chapter}-{current_start_chapter + current_batch_size - 1}")
+        
+        # 获取最新的大纲列表（包括之前批次生成的）
+        latest_result = await db.execute(
+            select(Outline)
+            .where(Outline.project_id == project.id)
+            .order_by(Outline.order_index)
+        )
+        latest_outlines = latest_result.scalars().all()
+        
+        # 获取最近2章的剧情
+        recent_outlines = latest_outlines[-2:] if len(latest_outlines) >= 2 else latest_outlines
+        recent_plot = "\n".join([
+            f"第{o.order_index}章《{o.title}》: {o.content}"
+            for o in recent_outlines
+        ])
+        
+        # 全部章节概览
+        all_chapters_brief = "\n".join([
+            f"第{o.order_index}章: {o.title}"
+            for o in latest_outlines
+        ])
+        
         # 使用标准续写提示词模板
         prompt = prompt_service.get_outline_continue_prompt(
             title=project.title,
             theme=request.theme or project.theme or "未设定",
             genre=request.genre or project.genre or "通用",
             narrative_perspective=request.narrative_perspective,
-        chapter_count=request.chapter_count,
+            chapter_count=current_batch_size,  # 当前批次的章节数
             time_period=project.world_time_period or "未设定",
             location=project.world_location or "未设定",
             atmosphere=project.world_atmosphere or "未设定",
             rules=project.world_rules or "未设定",
             characters_info=characters_info or "暂无角色信息",
-        current_chapter_count=current_chapter_count,
+            current_chapter_count=len(latest_outlines),
             all_chapters_brief=all_chapters_brief,
             recent_plot=recent_plot,
             plot_stage_instruction=stage_instruction,
-        start_chapter=last_chapter_number + 1,
+            start_chapter=current_start_chapter,
             story_direction=request.story_direction or "自然延续",
             requirements=request.requirements or ""
         )
         
-    # 调用AI
+        # 调用AI生成当前批次
+        logger.info(f"正在调用AI生成第{batch_num + 1}批...")
         ai_response = await user_ai_service.generate_text(
             prompt=prompt,
             provider=request.provider,
@@ -549,34 +577,40 @@ async def _continue_outline(
         # 解析响应
         outline_data = _parse_ai_response(ai_response)
         
-    # 保存续写的大纲
+        # 保存当前批次的大纲
-    new_outlines = await _save_outlines(
+        batch_outlines = await _save_outlines(
-        project.id, outline_data, db, start_index=last_chapter_number + 1
+            project.id, outline_data, db, start_index=current_start_chapter
         )
         
         # 记录历史
         history = GenerationHistory(
             project_id=project.id,
-        prompt=prompt,
+            prompt=f"[批次{batch_num + 1}/{total_batches}] {str(prompt)[:500]}",
             generated_content=ai_response,
             model=request.model or "default"
         )
         db.add(history)
         
+        # 提交当前批次
         await db.commit()
         
-    for outline in new_outlines:
+        for outline in batch_outlines:
             await db.refresh(outline)
         
+        all_new_outlines.extend(batch_outlines)
+        current_start_chapter += current_batch_size
+        
+        logger.info(f"第{batch_num + 1}批生成完成，本批生成{len(batch_outlines)}章")
+    
     # 返回所有大纲（包括旧的和新的）
-    all_result = await db.execute(
+    final_result = await db.execute(
         select(Outline)
         .where(Outline.project_id == project.id)
         .order_by(Outline.order_index)
     )
-    all_outlines = all_result.scalars().all()
+    all_outlines = final_result.scalars().all()
     
-    logger.info(f"续写完成 - 新增 {len(new_outlines)} 章，总计 {len(all_outlines)} 章")
+    logger.info(f"续写完成 - 共{total_batches}批，新增 {len(all_new_outlines)} 章，总计 {len(all_outlines)} 章")
     return OutlineListResponse(total=len(all_outlines), items=all_outlines)
 
 
@@ -659,3 +693,436 @@ async def _save_outlines(
         db.add(chapter)
     
     return outlines
+
+
+async def new_outline_generator(
+    data: Dict[str, Any],
+    db: AsyncSession,
+    user_ai_service: AIService
+) -> AsyncGenerator[str, None]:
+    """全新生成大纲SSE生成器"""
+    db_committed = False
+    try:
+        yield await SSEResponse.send_progress("开始生成大纲...", 5)
+        
+        project_id = data.get("project_id")
+        # 确保chapter_count是整数（前端可能传字符串）
+        chapter_count = int(data.get("chapter_count", 10))
+        
+        # 验证项目
+        yield await SSEResponse.send_progress("加载项目信息...", 10)
+        result = await db.execute(
+            select(Project).where(Project.id == project_id)
+        )
+        project = result.scalar_one_or_none()
+        if not project:
+            yield await SSEResponse.send_error("项目不存在", 404)
+            return
+        
+        yield await SSEResponse.send_progress(f"准备生成{chapter_count}章大纲...", 15)
+        
+        # 获取角色信息
+        characters_result = await db.execute(
+            select(Character).where(Character.project_id == project_id)
+        )
+        characters = characters_result.scalars().all()
+        characters_info = "\n".join([
+            f"- {char.name} ({'组织' if char.is_organization else '角色'}, {char.role_type}): "
+            f"{char.personality[:100] if char.personality else '暂无描述'}"
+            for char in characters
+        ])
+        
+        # 使用完整提示词
+        yield await SSEResponse.send_progress("准备AI提示词...", 20)
+        prompt = prompt_service.get_complete_outline_prompt(
+            title=project.title,
+            theme=data.get("theme") or project.theme or "未设定",
+            genre=data.get("genre") or project.genre or "通用",
+            chapter_count=chapter_count,
+            narrative_perspective=data.get("narrative_perspective") or "第三人称",
+            target_words=data.get("target_words") or project.target_words or 100000,
+            time_period=project.world_time_period or "未设定",
+            location=project.world_location or "未设定",
+            atmosphere=project.world_atmosphere or "未设定",
+            rules=project.world_rules or "未设定",
+            characters_info=characters_info or "暂无角色信息",
+            requirements=data.get("requirements") or ""
+        )
+        
+        # 调用AI
+        yield await SSEResponse.send_progress("🤖 正在调用AI生成...", 30)
+        ai_response = await user_ai_service.generate_text(
+            prompt=prompt,
+            provider=data.get("provider"),
+            model=data.get("model")
+        )
+        
+        yield await SSEResponse.send_progress("✅ AI生成完成，正在解析...", 70)
+        
+        # 解析响应
+        outline_data = _parse_ai_response(ai_response)
+        
+        # 删除旧大纲和章节
+        yield await SSEResponse.send_progress("清理旧数据...", 75)
+        logger.info(f"删除项目 {project_id} 的旧大纲和章节")
+        await db.execute(
+            delete(Outline).where(Outline.project_id == project_id)
+        )
+        await db.execute(
+            delete(Chapter).where(Chapter.project_id == project_id)
+        )
+        
+        # 保存新大纲
+        yield await SSEResponse.send_progress("💾 保存大纲到数据库...", 80)
+        outlines = await _save_outlines(
+            project_id, outline_data, db, start_index=1
+        )
+        
+        # 记录历史
+        history = GenerationHistory(
+            project_id=project_id,
+            prompt=prompt,
+            generated_content=ai_response,
+            model=data.get("model") or "default"
+        )
+        db.add(history)
+        
+        await db.commit()
+        db_committed = True
+        
+        for outline in outlines:
+            await db.refresh(outline)
+        
+        yield await SSEResponse.send_progress("整理结果数据...", 95)
+        
+        logger.info(f"全新生成完成 - {len(outlines)} 章")
+        
+        # 发送最终结果
+        yield await SSEResponse.send_result({
+            "message": f"成功生成{len(outlines)}章大纲",
+            "total_chapters": len(outlines),
+            "outlines": [
+                {
+                    "id": outline.id,
+                    "project_id": outline.project_id,
+                    "title": outline.title,
+                    "content": outline.content,
+                    "order_index": outline.order_index,
+                    "structure": outline.structure,
+                    "created_at": outline.created_at.isoformat() if outline.created_at else None,
+                    "updated_at": outline.updated_at.isoformat() if outline.updated_at else None
+                } for outline in outlines
+            ]
+        })
+        
+        yield await SSEResponse.send_progress("🎉 生成完成!", 100, "success")
+        yield await SSEResponse.send_done()
+        
+    except GeneratorExit:
+        logger.warning("大纲生成器被提前关闭")
+        if not db_committed and db.in_transaction():
+            await db.rollback()
+            logger.info("大纲生成事务已回滚（GeneratorExit）")
+    except Exception as e:
+        logger.error(f"大纲生成失败: {str(e)}")
+        if not db_committed and db.in_transaction():
+            await db.rollback()
+            logger.info("大纲生成事务已回滚（异常）")
+        yield await SSEResponse.send_error(f"生成失败: {str(e)}")
+
+
+async def continue_outline_generator(
+    data: Dict[str, Any],
+    db: AsyncSession,
+    user_ai_service: AIService
+) -> AsyncGenerator[str, None]:
+    """大纲续写SSE生成器 - 分批生成，推送进度"""
+    db_committed = False
+    try:
+        yield await SSEResponse.send_progress("开始续写大纲...", 5)
+        
+        project_id = data.get("project_id")
+        # 确保chapter_count是整数（前端可能传字符串）
+        total_chapters_to_generate = int(data.get("chapter_count", 5))
+        
+        # 验证项目
+        yield await SSEResponse.send_progress("加载项目信息...", 10)
+        result = await db.execute(
+            select(Project).where(Project.id == project_id)
+        )
+        project = result.scalar_one_or_none()
+        if not project:
+            yield await SSEResponse.send_error("项目不存在", 404)
+            return
+        
+        # 获取现有大纲
+        yield await SSEResponse.send_progress("分析已有大纲...", 15)
+        existing_result = await db.execute(
+            select(Outline)
+            .where(Outline.project_id == project_id)
+            .order_by(Outline.order_index)
+        )
+        existing_outlines = existing_result.scalars().all()
+        
+        if not existing_outlines:
+            yield await SSEResponse.send_error("续写模式需要已有大纲，当前项目没有大纲", 400)
+            return
+        
+        current_chapter_count = len(existing_outlines)
+        last_chapter_number = existing_outlines[-1].order_index
+        
+        yield await SSEResponse.send_progress(
+            f"当前已有{str(current_chapter_count)}章，将续写{str(total_chapters_to_generate)}章",
+            20
+        )
+        
+        # 获取角色信息
+        characters_result = await db.execute(
+            select(Character).where(Character.project_id == project_id)
+        )
+        characters = characters_result.scalars().all()
+        characters_info = "\n".join([
+            f"- {char.name} ({'组织' if char.is_organization else '角色'}, {char.role_type}): "
+            f"{char.personality[:100] if char.personality else '暂无描述'}"
+            for char in characters
+        ])
+
+        # 分批配置
+        batch_size = 5
+        total_batches = (total_chapters_to_generate + batch_size - 1) // batch_size
+        yield await SSEResponse.send_progress(
+            f"分批生成计划: 总共{str(total_chapters_to_generate)}章，分{str(total_batches)}批，每批{str(batch_size)}章",
+            25
+        )
+        
+        # 情节阶段指导
+        stage_instructions = {
+            "development": "继续展开情节，深化角色关系，推进主线冲突",
+            "climax": "进入故事高潮，矛盾激化，关键冲突爆发",
+            "ending": "解决主要冲突，收束伏笔，给出结局"
+        }
+        stage_instruction = stage_instructions.get(data.get("plot_stage", "development"), "")
+        
+        # 批量生成
+        all_new_outlines = []
+        current_start_chapter = last_chapter_number + 1
+
+        for batch_num in range(total_batches):
+            # 计算当前批次的章节数
+            remaining_chapters = int(total_chapters_to_generate) - len(all_new_outlines)
+            current_batch_size = min(batch_size, remaining_chapters)
+            
+            batch_progress = 25 + (batch_num * 60 // total_batches)
+            
+            yield await SSEResponse.send_progress(
+                f"📝 第{str(batch_num + 1)}/{str(total_batches)}批: 生成第{str(current_start_chapter)}-{str(current_start_chapter + current_batch_size - 1)}章",
+                batch_progress
+            )
+            
+            # 获取最新的大纲列表（包括之前批次生成的）
+            latest_result = await db.execute(
+                select(Outline)
+                .where(Outline.project_id == project_id)
+                .order_by(Outline.order_index)
+            )
+            latest_outlines = latest_result.scalars().all()
+            
+            # 获取最近2章的剧情
+            recent_outlines = latest_outlines[-2:] if len(latest_outlines) >= 2 else latest_outlines
+            recent_plot = "\n".join([
+                f"第{o.order_index}章《{o.title}》: {o.content}"
+                for o in recent_outlines
+            ])
+            
+            # 全部章节概览
+            all_chapters_brief = "\n".join([
+                f"第{o.order_index}章: {o.title}"
+                for o in latest_outlines
+            ])
+            
+            yield await SSEResponse.send_progress(
+                f"🤖 调用AI生成第{str(batch_num + 1)}批...",
+                batch_progress + 5
+            )
+            
+            # 使用标准续写提示词模板
+            prompt = prompt_service.get_outline_continue_prompt(
+                title=project.title,
+                theme=data.get("theme") or project.theme or "未设定",
+                genre=data.get("genre") or project.genre or "通用",
+                narrative_perspective=data.get("narrative_perspective") or project.narrative_perspective or "第三人称",
+                chapter_count=current_batch_size,
+                time_period=project.world_time_period or "未设定",
+                location=project.world_location or "未设定",
+                atmosphere=project.world_atmosphere or "未设定",
+                rules=project.world_rules or "未设定",
+                characters_info=characters_info or "暂无角色信息",
+                current_chapter_count=len(latest_outlines),
+                all_chapters_brief=all_chapters_brief,
+                recent_plot=recent_plot,
+                plot_stage_instruction=stage_instruction,
+                start_chapter=current_start_chapter,
+                story_direction=data.get("story_direction", "自然延续"),
+                requirements=data.get("requirements", "")
+            )
+            
+            # 调用AI生成当前批次
+            ai_response = await user_ai_service.generate_text(
+                prompt=prompt,
+                provider=data.get("provider"),
+                model=data.get("model")
+            )
+            
+            yield await SSEResponse.send_progress(
+                f"✅ 第{str(batch_num + 1)}批AI生成完成，正在解析...",
+                batch_progress + 10
+            )
+            
+            # 解析响应
+            outline_data = _parse_ai_response(ai_response)
+            
+            # 保存当前批次的大纲
+            batch_outlines = await _save_outlines(
+                project_id, outline_data, db, start_index=current_start_chapter
+            )
+            
+            # 记录历史
+            history = GenerationHistory(
+                project_id=project_id,
+                prompt=f"[续写批次{batch_num + 1}/{total_batches}] {str(prompt)[:500]}",
+                generated_content=ai_response,
+                model=data.get("model") or "default"
+            )
+            db.add(history)
+            
+            # 提交当前批次
+            await db.commit()
+            
+            for outline in batch_outlines:
+                await db.refresh(outline)
+            
+            all_new_outlines.extend(batch_outlines)
+            current_start_chapter += current_batch_size
+            
+            yield await SSEResponse.send_progress(
+                f"💾 第{str(batch_num + 1)}批保存成功！本批生成{str(len(batch_outlines))}章，累计新增{str(len(all_new_outlines))}章",
+                batch_progress + 15
+            )
+            
+            logger.info(f"第{str(batch_num + 1)}批生成完成，本批生成{str(len(batch_outlines))}章")
+        
+        db_committed = True
+        
+        # 返回所有大纲（包括旧的和新的）
+        final_result = await db.execute(
+            select(Outline)
+            .where(Outline.project_id == project_id)
+            .order_by(Outline.order_index)
+        )
+        all_outlines = final_result.scalars().all()
+        
+        yield await SSEResponse.send_progress("整理结果数据...", 95)
+        
+        # 发送最终结果
+        yield await SSEResponse.send_result({
+            "message": f"续写完成！共{str(total_batches)}批，新增{str(len(all_new_outlines))}章，总计{str(len(all_outlines))}章",
+            "total_batches": total_batches,
+            "new_chapters": len(all_new_outlines),
+            "total_chapters": len(all_outlines),
+            "outlines": [
+                {
+                    "id": outline.id,
+                    "project_id": outline.project_id,
+                    "title": outline.title,
+                    "content": outline.content,
+                    "order_index": outline.order_index,
+                    "structure": outline.structure,
+                    "created_at": outline.created_at.isoformat() if outline.created_at else None,
+                    "updated_at": outline.updated_at.isoformat() if outline.updated_at else None
+                } for outline in all_outlines
+            ]
+        })
+        
+        yield await SSEResponse.send_progress("🎉 续写完成!", 100, "success")
+        yield await SSEResponse.send_done()
+        
+    except GeneratorExit:
+        logger.warning("大纲续写生成器被提前关闭")
+        if not db_committed and db.in_transaction():
+            await db.rollback()
+            logger.info("大纲续写事务已回滚（GeneratorExit）")
+    except Exception as e:
+        logger.error(f"大纲续写失败: {str(e)}")
+        if not db_committed and db.in_transaction():
+            await db.rollback()
+            logger.info("大纲续写事务已回滚（异常）")
+        yield await SSEResponse.send_error(f"续写失败: {str(e)}")
+
+
+@router.post("/generate-stream", summary="AI生成/续写大纲(SSE流式)")
+async def generate_outline_stream(
+    data: Dict[str, Any],
+    db: AsyncSession = Depends(get_db),
+    user_ai_service: AIService = Depends(get_user_ai_service)
+):
+    """
+    使用SSE流式生成或续写小说大纲，实时推送批次进度
+    
+    支持模式：
+    - auto: 自动判断（无大纲→新建，有大纲→续写）
+    - new: 全新生成
+    - continue: 续写模式
+    
+    请求体示例：
+    {
+        "project_id": "项目ID",
+        "chapter_count": 5,  // 章节数
+        "mode": "auto",  // auto/new/continue
+        "theme": "故事主题",  // new模式必需
+        "story_direction": "故事发展方向",  // continue模式可选
+        "plot_stage": "development",  // continue模式：development/climax/ending
+        "narrative_perspective": "第三人称",
+        "requirements": "其他要求",
+        "provider": "openai",  // 可选
+        "model": "gpt-4"  // 可选
+    }
+    """
+    # 验证项目是否存在
+    result = await db.execute(
+        select(Project).where(Project.id == data.get("project_id"))
+    )
+    project = result.scalar_one_or_none()
+    if not project:
+        raise HTTPException(status_code=404, detail="项目不存在")
+    
+    # 判断模式
+    mode = data.get("mode", "auto")
+    
+    # 获取现有大纲
+    existing_result = await db.execute(
+        select(Outline)
+        .where(Outline.project_id == data.get("project_id"))
+        .order_by(Outline.order_index)
+    )
+    existing_outlines = existing_result.scalars().all()
+    
+    # 自动判断模式
+    if mode == "auto":
+        mode = "continue" if existing_outlines else "new"
+        logger.info(f"自动判断模式：{'续写' if existing_outlines else '新建'}")
+    
+    # 根据模式选择生成器
+    if mode == "new":
+        return create_sse_response(new_outline_generator(data, db, user_ai_service))
+    elif mode == "continue":
+        if not existing_outlines:
+            raise HTTPException(
+                status_code=400,
+                detail="续写模式需要已有大纲，当前项目没有大纲"
+            )
+        return create_sse_response(continue_outline_generator(data, db, user_ai_service))
+    else:
+        raise HTTPException(
+            status_code=400,
+            detail=f"不支持的模式: {mode}"
+        )

backend/app/database.py

@@ -148,7 +148,7 @@ async def get_db(request: Request):
             
             logger.debug(f"📊 会话关闭 [User:{user_id}][ID:{session_id}] - 活跃:{_session_stats['active']}, 总创建:{_session_stats['created']}, 总关闭:{_session_stats['closed']}, 错误:{_session_stats['errors']}")
             
-            if _session_stats["active"] > 10:
+            if _session_stats["active"] > 100:
                 logger.warning(f"🚨 活跃会话数过多: {_session_stats['active']}，可能存在连接泄漏！")
             elif _session_stats["active"] < 0:
                 logger.error(f"🚨 活跃会话数异常: {_session_stats['active']}，统计可能不准确！")

backend/app/services/prompt_service.py

@@ -150,7 +150,7 @@ class PromptService:
 3. 不要引用任何本批次中不存在的角色或组织名称
 4. 文本描述中不要使用中文引号（""），改用【】或《》"""
 
-    # 完整大纲生成提示词
+    # 向导大纲生成提示词
     COMPLETE_OUTLINE_GENERATION = """你是一位经验丰富的小说作家和编剧。请根据以下信息生成完整的{chapter_count}章小说大纲：
 
 基本信息：
@@ -639,7 +639,7 @@ class PromptService:
                                    target_words: int, time_period: str, location: str,
                                    atmosphere: str, rules: str, characters_info: str,
                                    requirements: str = "") -> str:
-        """获取完整大纲生成提示词"""
+        """获取向导大纲生成提示词"""
         return cls.format_prompt(
             cls.COMPLETE_OUTLINE_GENERATION,
             title=title,

docs/outline_batch_generation.md

@@ -0,0 +1,149 @@
+# 大纲分批续写功能说明
+
+## 概述
+
+优化后的大纲续写功能实现了**分批生成**机制，每批次生成5章大纲。这种方式相比一次性生成所有章节具有以下优势：
+
+## 优势
+
+1. **降低API压力**：分批次调用AI接口，避免单次请求过大导致超时
+2. **提高成功率**：小批量生成更稳定，减少因token限制导致的失败
+3. **更好的连贯性**：每批次基于最新生成的内容继续，确保剧情连贯
+4. **渐进式反馈**：用户可以看到分批次的进度，体验更好
+5. **容错性强**：单个批次失败不影响已生成的内容
+
+## 技术实现
+
+### 核心逻辑
+
+```python
+# 分批配置
+batch_size = 5  # 每批生成5章
+total_batches = (total_chapters_to_generate + batch_size - 1) // batch_size
+
+# 批次循环
+for batch_num in range(total_batches):
+    # 计算当前批次章节数
+    current_batch_size = min(batch_size, remaining_chapters)
+    
+    # 获取最新大纲列表（包括之前批次生成的）
+    latest_outlines = await db.execute(...)
+    
+    # 基于最新上下文生成
+    prompt = prompt_service.get_outline_continue_prompt(
+        chapter_count=current_batch_size,  # 当前批次数量
+        ...
+    )
+    
+    # 保存并提交当前批次
+    await db.commit()
+```
+
+### 关键特性
+
+1. **动态上下文更新**：每个批次都会获取最新的大纲列表，包括之前批次生成的内容
+2. **智能章节数计算**：最后一批会自动调整为剩余章节数（不一定是5章）
+3. **历史记录**：每个批次都会记录到 `GenerationHistory` 表，便于追溯
+4. **事务安全**：每批次独立提交，确保已生成内容不会丢失
+
+## 使用示例
+
+### API 调用
+
+```bash
+POST /api/outlines/generate
+Content-Type: application/json
+
+{
+  "project_id": "project-uuid",
+  "mode": "continue",
+  "chapter_count": 15,  # 将分3批生成（5+5+5）
+  "theme": "科幻冒险",
+  "narrative_perspective": "第三人称",
+  "plot_stage": "development",
+  "story_direction": "主角开始探索新世界"
+}
+```
+
+### 生成过程
+
+```
+续写15章的执行流程：
+
+批次1: 生成第11-15章 (5章)
+  ├─ 获取已有1-10章
+  ├─ 基于最近2章剧情
+  └─ 提交并保存
+
+批次2: 生成第16-20章 (5章)
+  ├─ 获取已有1-15章（包括批次1生成的）
+  ├─ 基于最近2章剧情（第14-15章）
+  └─ 提交并保存
+
+批次3: 生成第21-25章 (5章)
+  ├─ 获取已有1-20章（包括批次1-2生成的）
+  ├─ 基于最近2章剧情（第19-20章）
+  └─ 提交并保存
+
+结果: 总计新增15章，分3批完成
+```
+
+## 日志示例
+
+```
+[INFO] 续写大纲 - 项目: abc-123, 已有: 10 章
+[INFO] 分批生成计划: 总共15章，分3批，每批5章
+[INFO] 开始生成第1/3批，章节范围: 11-15
+[INFO] 正在调用AI生成第1批...
+[INFO] 第1批生成完成，本批生成5章
+[INFO] 开始生成第2/3批，章节范围: 16-20
+[INFO] 正在调用AI生成第2批...
+[INFO] 第2批生成完成，本批生成5章
+[INFO] 开始生成第3/3批，章节范围: 21-25
+[INFO] 正在调用AI生成第3批...
+[INFO] 第3批生成完成，本批生成5章
+[INFO] 续写完成 - 共3批，新增 15 章，总计 25 章
+```
+
+## 配置说明
+
+### 批次大小
+
+当前固定为 **5章/批次**，在 `_continue_outline` 函数中定义：
+
+```python
+batch_size = 5  # 每批生成5章
+```
+
+如需调整，修改此值即可。建议值：
+- 3-5章：最佳平衡点，稳定性高
+- 6-8章：适合长篇小说，需要更强的AI模型
+- 1-2章：超稳定模式，但会增加API调用次数
+
+### 提示词优化
+
+提示词已自动适配分批生成：
+- `chapter_count`: 动态调整为当前批次的章节数
+- `start_chapter`: 当前批次的起始章节号
+- `current_chapter_count`: 实时更新已有章节总数
+- `recent_plot`: 基于最新的2章剧情
+
+## 注意事项
+
+1. **API费用**：分批生成会增加API调用次数，但单次token消耗更少
+2. **生成时间**：总时间会略长于一次性生成（因为有多次网络请求）
+3. **连贯性**：通过获取最新上下文确保连贯性，实际效果可能优于一次性生成
+4. **中断恢复**：如果某批次失败，已生成的批次内容会保留
+
+## 未来优化方向
+
+1. **可配置批次大小**：允许用户通过API参数自定义批次大小
+2. **并行生成**：对于独立的批次可以考虑并行生成（需要仔细设计）
+3. **进度推送**：通过WebSocket或SSE实时推送生成进度
+4. **智能批次调整**：根据已有章节数和剩余章节数智能调整批次大小
+
+## 相关文件
+
+- **实现文件**: `backend/app/api/outlines.py` - `_continue_outline()` 函数
+- **提示词模板**: `backend/app/services/prompt_service.py` - `OUTLINE_CONTINUE_GENERATION`
+- **Schema定义**: `backend/app/schemas/outline.py` - `OutlineGenerateRequest`

frontend/src/pages/Outline.tsx

@@ -1,9 +1,10 @@
 import { useState, useEffect } from 'react';
-import { Button, List, Modal, Form, Input, message, Empty, Space, Popconfirm, Card, Select, Radio, Tag } from 'antd';
+import { Button, List, Modal, Form, Input, message, Empty, Space, Popconfirm, Card, Select, Radio, Tag, Progress } from 'antd';
 import { EditOutlined, DeleteOutlined, ThunderboltOutlined, ArrowUpOutlined, ArrowDownOutlined } from '@ant-design/icons';
 import { useStore } from '../store';
 import { useOutlineSync } from '../store/hooks';
 import { cardStyles } from '../components/CardStyles';
+import { SSEPostClient } from '../utils/sseClient';
 
 const { TextArea } = Input;
 
@@ -14,6 +15,11 @@ export default function Outline() {
   const [generateForm] = Form.useForm();
   const [isMobile, setIsMobile] = useState(window.innerWidth <= 768);
   
+  // SSE进度状态
+  const [sseProgress, setSSEProgress] = useState(0);
+  const [sseMessage, setSSEMessage] = useState('');
+  const [sseModalVisible, setSSEModalVisible] = useState(false);
+
   useEffect(() => {
     const handleResize = () => {
       setIsMobile(window.innerWidth <= 768);
@@ -23,13 +29,12 @@ export default function Outline() {
     return () => window.removeEventListener('resize', handleResize);
   }, []);
 
-  // 使用同步 hooks（移除createOutline）
+  // 使用同步 hooks
   const {
     refreshOutlines,
     updateOutline,
     deleteOutline,
-    reorderOutlines,
+    reorderOutlines
-    generateOutlines
   } = useOutlineSync();
 
   // 初始加载大纲列表
@@ -159,9 +164,17 @@ export default function Outline() {
   const handleGenerate = async (values: GenerateFormValues) => {
     try {
       setIsGenerating(true);
-      // 如果是全新生成模式，keep_existing应该为false
+      
-      const isNewMode = values.mode === 'new';
+      // 关闭生成表单Modal
-      const result = await generateOutlines({
+      Modal.destroyAll();
+      
+      // 显示进度Modal
+      setSSEProgress(0);
+      setSSEMessage('正在连接AI服务...');
+      setSSEModalVisible(true);
+      
+      // 准备请求数据
+      const requestData = {
         project_id: currentProject.id,
         genre: currentProject.genre || '通用',
         theme: values.theme || currentProject.theme || '',
@@ -169,20 +182,44 @@ export default function Outline() {
         narrative_perspective: values.narrative_perspective || currentProject.narrative_perspective || '第三人称',
         target_words: currentProject.target_words || 100000,
         requirements: values.requirements,
-        // 续写参数
         mode: values.mode || 'auto',
         story_direction: values.story_direction,
         plot_stage: values.plot_stage || 'development',
-        keep_existing: !isNewMode,  // 全新生成模式下不保留旧大纲
+        provider: values.provider,
+        model: values.model
+      };
+      
+      // 使用SSE客户端
+      const apiUrl = `/api/outlines/generate-stream`;
+      const client = new SSEPostClient(apiUrl, requestData, {
+        onProgress: (msg: string, progress: number) => {
+          setSSEMessage(msg);
+          setSSEProgress(progress);
+        },
+        onResult: (data: any) => {
+          console.log('生成完成，结果:', data);
+        },
+        onError: (error: string) => {
+          message.error(`生成失败: ${error}`);
+          setSSEModalVisible(false);
+          setIsGenerating(false);
+        },
+        onComplete: () => {
+          message.success('大纲生成完成！');
+          setSSEModalVisible(false);
+          setIsGenerating(false);
+          // 刷新大纲列表
+          refreshOutlines();
+        }
       });
-      message.success(`成功生成 ${result.length} 条大纲`);
+      
-      Modal.destroyAll();
+      // 开始连接
-      // 刷新大纲列表，确保显示最新数据
+      client.connect();
-      await refreshOutlines();
+      
     } catch (error) {
       console.error('AI生成失败:', error);
       message.error('AI生成失败');
-    } finally {
+      setSSEModalVisible(false);
       setIsGenerating(false);
     }
   };
@@ -335,6 +372,37 @@ export default function Outline() {
   };
 
   return (
+    <>
+      {/* SSE进度Modal */}
+      <Modal
+        title="生成大纲中"
+        open={sseModalVisible}
+        footer={null}
+        closable={false}
+        centered
+        width={500}
+      >
+        <div style={{ padding: '20px 0' }}>
+          <Progress
+            percent={sseProgress}
+            status={sseProgress === 100 ? 'success' : 'active'}
+            strokeColor={{
+              '0%': '#108ee9',
+              '100%': '#87d068',
+            }}
+          />
+          <div style={{
+            marginTop: 16,
+            color: '#666',
+            fontSize: 14,
+            minHeight: 40,
+            lineHeight: '20px'
+          }}>
+            {sseMessage}
+          </div>
+        </div>
+      </Modal>
+
       <div style={{ display: 'flex', flexDirection: 'column', height: '100%' }}>
       {/* 固定头部 */}
       <div style={{
@@ -476,5 +544,6 @@ export default function Outline() {
         )}
       </div>
       </div>
+    </>
   );
 }

frontend/src/pages/ProjectList.tsx

@@ -1,7 +1,7 @@
-import { useEffect } from 'react';
+import { useEffect, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
-import { Card, Button, Empty, Modal, message, Spin, Row, Col, Statistic, Space, Tag, Progress, Typography, Tooltip, Badge } from 'antd';
+import { Card, Button, Empty, Modal, message, Spin, Row, Col, Statistic, Space, Tag, Progress, Typography, Tooltip, Badge, Alert } from 'antd';
-import { EditOutlined, DeleteOutlined, BookOutlined, RocketOutlined, CalendarOutlined, FileTextOutlined, TrophyOutlined, FireOutlined, SettingOutlined } from '@ant-design/icons';
+import { EditOutlined, DeleteOutlined, BookOutlined, RocketOutlined, CalendarOutlined, FileTextOutlined, TrophyOutlined, FireOutlined, SettingOutlined, InfoCircleOutlined, CloseOutlined } from '@ant-design/icons';
 import { useStore } from '../store';
 import { useProjectSync } from '../store/hooks';
 import type { ReactNode } from 'react';
@@ -13,6 +13,7 @@ const { Title, Text, Paragraph } = Typography;
 export default function ProjectList() {
   const navigate = useNavigate();
   const { projects, loading } = useStore();
+  const [showApiTip, setShowApiTip] = useState(true);
 
   const { refreshProjects, deleteProject } = useProjectSync();
 
@@ -195,6 +196,59 @@ export default function ProjectList() {
             </Col>
           </Row>
 
+          {showApiTip && projects.length === 0 && (
+            <Alert
+              message={
+                <Space align="center" style={{ width: '100%' }}>
+                  <InfoCircleOutlined style={{ fontSize: 16, color: '#1890ff' }} />
+                  <Text strong style={{ fontSize: window.innerWidth <= 768 ? 13 : 14 }}>
+                    首次使用提示
+                  </Text>
+                </Space>
+              }
+              description={
+                <Space direction="vertical" size={8} style={{ width: '100%' }}>
+                  <Text style={{ fontSize: window.innerWidth <= 768 ? 12 : 13 }}>
+                    在开始创作之前，请先配置您的AI接口。系统支持OpenAI和Anthropic两种接口。
+                  </Text>
+                  <Space size={8}>
+                    <Button
+                      type="primary"
+                      size="small"
+                      icon={<SettingOutlined />}
+                      onClick={() => navigate('/settings')}
+                      style={{
+                        borderRadius: 6,
+                        background: 'linear-gradient(135deg, #667eea 0%, #764ba2 100%)',
+                        border: 'none'
+                      }}
+                    >
+                      立即配置
+                    </Button>
+                    <Button
+                      size="small"
+                      onClick={() => setShowApiTip(false)}
+                      style={{ borderRadius: 6 }}
+                    >
+                      暂不提醒
+                    </Button>
+                  </Space>
+                </Space>
+              }
+              type="info"
+              showIcon={false}
+              closable
+              closeIcon={<CloseOutlined style={{ fontSize: 12 }} />}
+              onClose={() => setShowApiTip(false)}
+              style={{
+                marginTop: window.innerWidth <= 768 ? 16 : 24,
+                borderRadius: 12,
+                background: 'linear-gradient(135deg, #e6f7ff 0%, #f0f5ff 100%)',
+                border: '1px solid #91d5ff'
+              }}
+            />
+          )}
+
           {projects.length > 0 && (
             <Row gutter={[16, 16]} style={{ marginTop: window.innerWidth <= 768 ? 16 : 24 }}>
               <Col xs={24} sm={8}>

frontend/src/pages/Settings.tsx

@@ -116,9 +116,9 @@ export default function SettingsPage() {
 
   const apiProviders = [
     { value: 'openai', label: 'OpenAI', defaultUrl: 'https://api.openai.com/v1' },
-    { value: 'azure', label: 'Azure OpenAI', defaultUrl: 'https://YOUR-RESOURCE.openai.azure.com' },
+    // { value: 'azure', label: 'Azure OpenAI', defaultUrl: 'https://YOUR-RESOURCE.openai.azure.com' },
     { value: 'anthropic', label: 'Anthropic', defaultUrl: 'https://api.anthropic.com' },
-    { value: 'custom', label: '自定义', defaultUrl: '' },
+    // { value: 'custom', label: '自定义', defaultUrl: '' },
   ];
 
   const handleProviderChange = (value: string) => {