url 解码 application/x-www-form-urlencoded 转字典 mysql存入json格式字符串
URL Decoding query strings or form parameters in Python | URLDecoder https://www.urldecoder.io/python/
flask接收 application/x-www-form-urlencoded格式数据，并转化为json格式字符串，写入mysql。
"""
request.headers
Content-Type', 'application/x-www-form-urlencoded'
"""
try:
import pprint, json
ContentType = str(request.headers['Content-Type'])
env = request.environ['REMOTE_ADDR'] + ' ' + request.environ['HTTP_USER_AGENT'] + ' ' + ContentType
# 获取的数据，转字符串，This reads the buffered incoming data from the client into one
# bytestring.
param0 = request.get_data(as_text=True)
print("0=", param0)
import urllib.parse
# 转码为字典，同时encoding='utf-8'
param1 = urllib.parse.parse_qs(param0)
# 字典转json格式的字符串
param2 = json.dumps(param1, ensure_ascii=False)
print('2=', param2)
sql = f'''INSERT INTO mydb.table (remark,remark2,env) VALUES ('{param2}','','{env}')'''