Flask发布post读写json格式参数进行模型调用

安装Flask

venv\Scripts\activate
安装依赖pip install -r requirements.txt
venv\Scripts\activate

Flask==2.0.1
Werkzeug==2.0.1
psycopg2-binary==2.9.3
SQLAlchemy==1.4.36
Flask-SQLAlchemy==2.5.1
python-dotenv==0.19.0
geoalchemy2==0.10.0
alembic==1.7.0
flask-migrate==3.1.0 

 

学习参考资料：

Flask模板引擎：https://b23.tv/KBIrrOH

代码内容：

import os.path

from flask import Flask, request, render_template
from werkzeug.utils import send_file
from flask import send_file
app = Flask(__name__)

class InvalidParaException(Exception):
    pass
@app.route("/")
def index():
    return "Server is running..."

@app.route("/get")
def get():
    name= request.args.get("name", "Jack")

    if name.strip() == "":
        raise  InvalidParaException("name字段不能为空..")

    if name.strip() == "123":
        raise InvalidParaException("name字段不能为123..")

    return f'name is {name}'
# http://127.0.0.1:5000/get?name=Tom

@app.route("/post", methods=['POST'])
def post():
    json_data= request.get_json()
    name = json_data.get("name", "Jack")
    return f'name is {name}'

@app.errorhandler(Exception)
def page_not_found(error):
    return f'出错了。全局错误 {error}'

@app.errorhandler(InvalidParaException)
def page_not_found(error):
    return f'出错了。无效参数 {error}'


# 读取文件
@app.route('/read-text')
def read_text():
    filename = request.args.get("filename")
    if filename == "":
        return "请传递filename参数！"
    filepath = f"text/{filename}"
    if not os.path.exists(filepath):
        return f'文件[{filename}]不存在'
    # http://127.0.0.1:5000/read-text?filename=唐诗.txt

    return send_file('text/唐诗.txt')
#     return send_file('./sessions.csv',mimetype='csv',as_attachment=True,
#    download_name='sessions.csv', environ=request.environ)


from markupsafe import escape

@app.route('/dynamic-route/<name>/yyds')
def dynamic_route(name):
    # show the user profile for that user
    return f'name is {name}'
# http://127.0.0.1:5000/dynamic-route/xiaoming/yyds

# flask框架下使用模板
@app.route('/welcome')
def welcome():
    return render_template("welcome.html",name = "xiaoming")
# http://127.0.0.1:5000/welcome



app.run()

 

结合高空伞兵高级模型

from flask import Flask, request, jsonify
# from sympy.codegen import Print
# import FlightModel.Flightlandingpoint
from FlightModel.Flightlandingpoint import cal_fLP

# url = "http://localhost:5000/api-endpoint"
# data = {
#     "username": "tech_enthusiast",
#     "preferences": {
#         "theme": "dark",
#         "notifications": True
#     }
# }
# import requests
# response = requests.post(url, json=data)
# print(response.json())

app = Flask(__name__)
@app.route('/post', methods=['POST'])
def post_json():
    try:
        # 1、获取请求中的 JSON 数据
        data = request.get_json()
        if data is None:
            return jsonify({
                "error": "No JSON data provided"
            }), 400
        # 2. 验证数据完整性
        if (not data or 'flightLandPoint' not in data
                or 'v_front' not in data
                or 'h' not in data
                or 'angle' not in data):
             return jsonify({
                 "status": "error",
                 "code": 400,
                 "message": "缺少必要参数 (flightlandPoint or v_front or h or angle)"
            }), 400

        # print('输出：', data)
        # name = data.get('flightLandPoint')
        # print(name)

        # 读取特定参数
        flightLandPoint = data.get('flightLandPoint')['geometry']['coordinates']
        v_front = data.get('v_front')
        h = data.get('h')
        angle = data.get('angle')

        # 进行一些处理，这里只是简单示例
        # result = {
        #     "code": "200",
        #     "message": "成功",
        #     "features": [
        #         {
        #             "geometry": {
        #                 "coordinates": [
        #                     103.48775167660897,
        #                     30.923409633492632
        #                 ],
        #                 "type": "Point"
        #             },
        #             "type": "Feature",
        #             "properties": {
        #                 "flightLandPoint": flightLandPoint,
        #                 "v_front": v_front,
        #                 "h": h,
        #                 "angle": angle
        #             }
        #         }]
        # }
        # [L,B] = flightLandPoint

        cor, t = cal_fLP(flightLandPoint, v_front, h, angle)
        result = {
            "code": "200",
            "message": "成功",
            "features": [
                {
                    "geometry": {
                        "coordinates": cor,
                        "type": "Point"
                    },
                    "type": "Feature",
                    "properties": {
                        "time": t
                    }
                }]
        }
        return jsonify(result), 200

    except Exception as e:
        return jsonify({
            "status": "error",
            "code": 500,
            "message": f"Server internal error: {str(e)}"
        }), 500


if __name__ == '__main__':
    app.run(debug=True)
# curl -X POST http://127.0.0.1:5000/process -H "Content-Type: application/json" -d '{"flightlandpoint":{"type":"Feature","geometry":{"type":"Point","coordinates":[103.49204567902446,30.926804485433806]},"properties":{}},"v_front":800,"h":1200,"angle":130}'

#postwoman
#POST:http://127.0.0.1:5000/post
# 自定义格式：application/json
# 参数：
# {
#   "flightLandPoint": {
#     "type": "Feature",
#     "geometry": {
#       "type": "Point",
#       "coordinates": [
#         103.49204567902446,
#         30.926804485433806
#       ]
#     },
#     "properties": {}
#   },
#   "v_front": 800,
#   "h": 1200,
#   "angle": 130
# }
# 发送结果
# {
# "code": "200",
# -"features": [
# -{
# -"geometry": {
# -"coordinates": [
# 103.49181888,
# 30.92717512
# ],
# "type": "Point"
# },
# -"properties": {
# "time": 184.4799999999772
# },
# "type": "Feature"
# }
# ],
# "message": "成功"
# }

POSTWOMAN测试