FastAPI(二)路由映射

Love The Way You Lie 2024-03-27 16:26 67阅读 0赞

**目录**

一、在根目录-新建apps文件夹

二、在apps文件夹下-新建user文件夹和menu文件夹

三、编写API

四、 将子路由导入根路由中

五、改造main.py

六、启动并访问接口文档

--------------------

#### 一、在根目录-新建apps文件夹 ####

![0712bb09516148c38ca91c0e858bb3b3.png][]

![c2ec36892480408d8574b38cdd15a355.png][]

在apps文件夹下新建modules文件夹

![239554684f224709b3ef272148117da1.png][]

编辑modules文件夹下的\_\_init\_\_.py文件如下：

from fastapi import APIRouter
    # from .user import user_api
    # from .menu import menu_api
    
    api_router = APIRouter()
    
    # api_router.include_router(user_api, prefix="/user")
    # api_router.include_router(menu_api, prefix="/menu")
    
    __all__ = ['api_router']

#### 二、在apps/modules文件夹下-新建user文件夹和menu文件夹 ####

![7f48e39956944a24b315b322b061a646.png][]

#### 三、编写API ####

①在user文件夹下新建views.py内容如下：

from fastapi import APIRouter
    
    router = APIRouter()
    
    
    @router.post("/login", summary="用户登录")
    async def login():
        return {'message': '登录成功'}

②将user接口路由导出，编辑user文件夹下的\_\_init\_\_.py文件如下：

from .views import router as user_api

![c5e326d53b7f4a73a82373e2c2a3f506.png][]

③在menu文件夹下新建views.py内容如下：

from fastapi import APIRouter
    
    router = APIRouter()
    
    
    @router.get("/get_list", summary="菜单列表")
    async def get_list():
        return {'data': ['用户管理', '菜单管理', '系统监控']}

④将menu接口路由导出，编辑menu文件夹下的\_\_init\_\_.py文件如下：

from .views import router as menu_api

![fa41f36618dc4dfc9540a5dd74d5f630.png][]

#### 四、 将子路由导入根路由中 ####

编辑apps/modules文件夹下的\_\_init\_\_.py文件为：

from fastapi import APIRouter
    from .user import user_api
    from .menu import menu_api
    
    api_router = APIRouter()
    
    api_router.include_router(user_api, prefix="/user")
    api_router.include_router(menu_api, prefix="/menu")
    
    __all__ = ['api_router']

![397be4018fb8436683e275d51a826585.png][]

#### 五、改造main.py ####

import uvicorn
    from fastapi import FastAPI
    
    from apps.modules import api_router
    
    app = FastAPI()
    
    # 跨域配置
    origins = [
        "http://localhost",
        "http://localhost:7146",
        "http://localhost:1880",
        "http://localhost:80",
    ]
     
    app.add_middleware(
        CORSMiddleware,
        allow_origins=origins,
        allow_credentials=True,
        allow_methods=["*"],
        allow_headers=["*"],
    )
    
    app.include_router(api_router, prefix='/api')
    
    if __name__ == "__main__":
        uvicorn.run("main:app", host="0.0.0.0", port=8080)

#### 六、启动并访问接口文档 ####

![d584ced1afa049bdb4ef9b10b3138b61.png][]

[0712bb09516148c38ca91c0e858bb3b3.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/27/cf7cf399f35b4bcd8fed406a10ed1a9c.png
[c2ec36892480408d8574b38cdd15a355.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/27/f5585478d1ff4113903275570543c9a9.png
[239554684f224709b3ef272148117da1.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/27/eed5f6c0f3e3497db66bcc8289130087.png
[7f48e39956944a24b315b322b061a646.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/27/5b8db1f24fd14c7daaf80ac2a948d222.png
[c5e326d53b7f4a73a82373e2c2a3f506.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/27/ad4fa3d9cb234e1da7ba3da3fcbd80d4.png
[fa41f36618dc4dfc9540a5dd74d5f630.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/27/d495a347beba41a39adb202d6773ce9b.png
[397be4018fb8436683e275d51a826585.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/27/1bb8eec776a344f1a69dd3baa4da0e79.png
[d584ced1afa049bdb4ef9b10b3138b61.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/27/351e7295c5dc472fb461ea15559fa7e2.png