银盒子的世界

微信的参数，只要xml的，那把json转成xml的过程记录一下

首先安装一个库 xmltodict==0.12.0

pip install xmltidict==0.12.0

然后文件中引入，进行一些参数拼接和转换

import xmltodict
import requests

# 生成订单号
trade_no = str(time.strftime('%Y%m%d%H%M%S', time.localtime(time.time()))) + str(time.time()).replace('.', '')[-7:]

# 从a-zA-Z0-9生成指定数量的随机字符：
ran_str = ''.join(random.sample(string.ascii_letters + string.digits, 32))

url = settings.wechat_unifiedorder_url
ip = request.headers.getlist("X-Forwarded-For")[0].rpartition(' ')[-1]

# 鉴权和MD5加密
sign = '&'.join(('app_id=' + settings.wechat_app_id, 
				 'body=MOJIGO-XXX盲盒隐藏款', 	
                 'mch_id=' + settings.wechat_mch_id,
                 'nonce_str=' + ran_str, 
                 'notify_url' + settings.wechat_notify_url, 
                 'out_trade_no=' + trade_no,
                 'spbill_create_ip=' + ip, 
                 'total_fee=' + money, 
                 'trade_type=APP',
                 'key=aSvhCoD4FrK2cmdNZLxLggeU7u6YZWmC'))
sign_encode = sign.encode('utf-8')
sign_md5 = hashlib.md5().update(sign_encode).hexdigest()

form = dict(
    appid=settings.wechat_app_id,
    mch_id=settings.wechat_mch_id,
    nonce_str=ran_str,
    body=name,
    out_trade_no=trade_no,
    total_fee=money,
    notify_url=settings.wechat_notify_url,
    trade_type="APP",
    spbill_create_ip=ip,
    sign=sign_md5,
)
now_form = {
	"xml":form
}
xml_form = xmltodict.unparse(now_form)  # 这里就把json转成xml了
"""
注意，这里必须用xml（或其他的，root也行）再把字典包一层，不然就报错 ValueError: Document must have exactly one root.
"""

发送post请求，xml格式的参数
response = requests.post(url, data=xml.encode('utf-8'), headers={'Content-Type': 'text/xml'})

# 拿到结果，并把xml的返回转成json
msg = response.text
xmlmsg = xmltodict.parse(msg)