1.进入虚拟环境
source .venv/bin/activate

安装fastapi

2.运行fastapi
uvicorn main:app --reload --host 0.0.0.0 --port 8000

后台运行
nohup uvicorn main:app --host 0.0.0.0 --port 8000 --log-level info > ../log/app.log 2>&1 &


//待定(还有问题)
3.服务脚本
sudo nano /etc/systemd/system/fastapi.service
'''
[Unit]
Description=FastAPI Application
After=network.target

[Service]
User=huahua  # 设置为运行应用的用户
WorkingDirectory=/home/huahua/intr/HostMain/code
ExecStart=/home/huahua/intr/HostMain/.venv/bin/uvicorn main:app --host 0.0.0.0 --port 8000 --log-level info
Restart=always

[Install]
WantedBy=multi-user.target


'''

4.运行服务
sudo systemctl daemon-reload
sudo systemctl start fastapi.service
sudo systemctl enable fastapi.service  # 设置为开机自启

sudo systemctl stop fastapi.service
sudo journalctl -u fastapi.service -f  # 实时查看日志

sudo systemctl disable fastapi.service  # 设置为开机自启