https://cloud.tencent.com/developer/article/1884129
https://cloud.tencent.com/developer/article/1884130
需要先了解什么是同源策略和 CORS 才能更好看懂这篇文章
— root/
|
|—static/
| |
| |—jquery.min.js
|
|— cors_client.py
|— cors_server.py
|
主要模拟客户端
为了使用
from fastapi.staticfiles import StaticFiles
需要先安装 aipfiles
pip install aiofiles
静态资源文件的使用教程后面再写
#!usr/bin/env python
# -*- coding:utf-8 _*-
"""
# author: 小菠萝测试笔记
# blog: https://www.cnblogs.com/poloyy/
# time: 2021/9/28 12:58 下午
# file: 33_cors.py
"""
import uvicorn
from fastapi.responses import HTMLResponse
from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles
app = FastAPI()
# 绑定静态资源文件夹(后面详解)
app.mount("/static", StaticFiles(directory="static"), name="static")
@app.get("/")
def get_login():
# 返回一段 HTML 代码
html = """
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="/static/jquery.min.js"></script>
</head>
<body>
<script>
$.ajax({
url:"http://127.0.0.1:8080/login",
type:"POST",
data:JSON.stringify({
"id":1,
"name":"小菠萝"
}),
contentType:"application/json",
success:function (rsp) {
console.log(rsp)
}
})
</script>
</body>
</html>
"""
return HTMLResponse(html)
if __name__ == '__main__':
# 客户端是 8081 端口!
uvicorn.run(app="33_cors:app", reload=True, host="127.0.0.1", port=8081)
那段 ajax 代码就是模拟跨域请求服务端,服务端域名虽然也是 127.0.0.1,但端口是 8081,是一个跨域请求
主要模拟服务端
#!usr/bin/env python
# -*- coding:utf-8 _*-
"""
# author: 小菠萝测试笔记
# blog: https://www.cnblogs.com/poloyy/
# time: 2021/9/28 12:58 下午
# file: 33_cors.py
"""
import uvicorn
from fastapi import FastAPI, Body
app = FastAPI()
# 模拟服务端 登录 接口
@app.post("/login")
def get_login(id: str = Body(...), name: str = Body(...)):
return {"id": id, "name": name}
if __name__ == '__main__':
# 服务端端口是 8080!
uvicorn.run(app="33_cors1:app", reload=True, host="0.0.0.0", port=8080)
同时运行 cors_client.py、cors_server.py 的 uvicorn 服务器,其实就运行下两个 Python 文件就行啦
Access-Control-Allow-Origin