一、POST传送参数

使用curl命令传送字典：

curl http://192.168.1.10:5000/upload -X POST -d '{"hello": "world"}' --header "Content-Type: application
/json"

使用Python Flask的request.json获取字典数据：

from flask import Flask, request
app = Flask(__name__)

@app.route("/upload", methods=["POST"])
def save_file():
    print("start...")
    # 获取json数据
    print(type(request.json))
    print(request.json['hello'])
    
    print("end...")
    return "已接收保存\n"

if __name__ == '__main__':
    app.run(host="0.0.0.0", port=5000, debug=True)

二、URL中传递参数

也可以使用在URL中携带参数：

curl http://192.168.68.10:5000/upload?info=1233232 -X POST --header "Content-Type: application/json"

from flask import Flask, request
app = Flask(__name__)

@app.route("/upload", methods=["POST"])
def save_file():
    print("start...")
    # 从URL里获取参数
    print(request.args.__str__())
    print(request.args.get('info'))

    print("end...")
    return "已接收保存\n"

if __name__ == '__main__':
    app.run(host="0.0.0.0", port=5000, debug=True)

参考：

1. https://www.letianbiji.com/python-flask/py-flask-json.html

2. Python flask 实现文件发送和接收保存