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import asyncio
import socket
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import time
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import uvicorn
from fastapi import FastAPI, Body
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.responses import StreamingResponse, PlainTextResponse
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from openai import OpenAI
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from AiService.MarkdownToJsonConverter import MarkdownToJsonConverter
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# 阿里云中用来调用 deepseek v3 的密钥
MODEL_API_KEY = "sk-01d13a39e09844038322108ecdbd1bbc"
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MODEL_NAME = "qwen-plus"
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# 初始化 OpenAI 客户端
client = OpenAI(
api_key=MODEL_API_KEY,
base_url="https://dashscope.aliyuncs.com/compatible-mode/v1",
)
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def convertMarkdownToJson(markdown_content: str, language: str):
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# 创建转换器实例
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converter = MarkdownToJsonConverter(client, language)
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# 转换 Markdown 为 JSON
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for item in converter.convert_markdown_to_json(markdown_content, language): # 使用普通 for 循环
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yield f"{item}\n" # 每行数据后添加换行符
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# 添加结束标记
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yield '{"type": "end" }\n' # 结束标记后也添加换行符
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# 获取本机所有 IPv4 地址
def get_local_ips():
ips = []
hostname = socket.gethostname()
try:
# 获取所有 IP 地址
addrs = socket.getaddrinfo(hostname, None, family=socket.AF_INET) # 只获取 IPv4 地址
for addr in addrs:
ip = addr[4][0]
if ip not in ips:
ips.append(ip)
except Exception as e:
print(f"获取 IP 地址失败: {e}")
return ips
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# 流式生成数据的函数
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async def generate_stream_markdown(course_name: str, language: str):
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"""
流式生成 Markdown 数据并在控制台输出完整的 Markdown 内容
"""
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prompt = ''
if language == 'cn':
prompt = '请使用中文回答'
elif language == 'en':
prompt = 'Please answer in English。'
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# 调用阿里云 API启用流式响应
stream = client.chat.completions.create(
model=MODEL_NAME,
messages=[
{'role': 'system', 'content': '你是一个教学经验丰富的基础教育教师'},
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{'role': 'user',
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'content': prompt + ',帮我设计一下' + course_name + '的课件提纲用markdown格式返回。强调1、标签只能返回 #,##,###,-,其它标签一率不可以返回这个非常重要2、不要返回 ```markdown 或者 ``` 这样的内容! 3、每部分都有生成完整的一、二、三级内容不能省略。'}
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],
stream=True, # 启用流式响应
timeout=6000,
)
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# 初始化完整的 Markdown 内容
full_markdown = ""
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# 逐字返回数据
for chunk in stream:
if chunk.choices[0].delta.content:
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chunk_content = chunk.choices[0].delta.content
full_markdown += chunk_content # 拼接 Markdown 内容
for char in chunk_content:
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yield char.encode("utf-8")
await asyncio.sleep(0.05) # 控制逐字输出的速度
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# 在控制台输出完整的 Markdown 内容
print("\n完整的 Markdown 内容:")
print(full_markdown)
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app = FastAPI()
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# 添加 CORS 中间件
app.add_middleware(
CORSMiddleware,
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allow_origins=["*"],
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allow_credentials=True,
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allow_methods=["*"],
allow_headers=["*"],
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)
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# 根路由,返回提示信息
@app.get("/")
def root():
return PlainTextResponse("Hello ApiStream")
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@app.post("/api/tools/aippt_outline") # 仅支持 POST 方法
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async def aippt_outline(
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course_name: str = Body(..., embed=True, description="课程名称"), # 从请求体中获取 course_name
language: str = Body(..., embed=True, description="语言"),
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):
# 返回流式响应
return StreamingResponse(
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generate_stream_markdown(course_name, language),
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media_type="text/event-stream",
headers={
"Cache-Control": "no-cache",
"Connection": "keep-alive",
"Access-Control-Allow-Origin": "*",
"X-Accel-Buffering": "no"
}
)
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@app.post("/api/tools/aippt") # 修改为 POST 方法
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def aippt(content: str = Body(..., embed=True, description="Markdown 内容"),
language: str = Body(..., embed=True, description="语言")): # 使用 Body 接收请求体参数
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return StreamingResponse(
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convertMarkdownToJson(content, language), # 传入 content
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media_type="text/plain", # 使用 text/plain 格式
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headers={
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"Cache-Control": "no-cache",
"Connection": "keep-alive",
"Access-Control-Allow-Origin": "*",
"X-Accel-Buffering": "no",
"Content-Type": "text/plain; charset=utf-8" # 明确设置 Content-Type
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}
)
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# 运行应用
if __name__ == "__main__":
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# 获取本机所有 IPv4 地址
ips = get_local_ips()
if not ips:
print("无法获取本机 IP 地址,使用默认地址 127.0.0.1")
ips = ["127.0.0.1"]
# 打印所有 IP 地址
print("服务将在以下 IP 地址上运行:")
for ip in ips:
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print(f"http://{ip}:5176")
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# 启动 FastAPI 应用,绑定到所有 IP 地址
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uvicorn.run(app, host="0.0.0.0", port=5176)