juhe 发送短信验证码

import urllib.parse
import requests
import json

==============定义一个公共类===========================
class Message(object):
    _KEY = '90c36a579a309a10e713a85adc06e264'
    _TEMPLATE_ID = 131421
    _MESSAGE_SEND_URL = 'http://v.juhe.cn/sms/send'

    def send(self, mobile, code, dtype='json'):
        if str(code).__len__() != 4:
            return False, '验证码长度不为4'
        if not str(mobile).isdigit() or str(mobile).__len__() != 11:
            return False, '手机号错误'
        if not str(dtype) != 'json' and not str(dtype) != 'xml':
            return False, '格式不支持'
        temp = urllib.parse.urlencode({'#code#=': str(code).encode('utf8')}).replace('=', '')
        url = '%s?mobile=%s&tpl_id=%d&tpl_value=%s&key=%s&dtype=%s' % (self._MESSAGE_SEND_URL, mobile,
                                                                       self._TEMPLATE_ID,
                                                                       temp, self._KEY, dtype)
        response = requests.post(url)
        content = response.content.decode('utf-8')
        content = json.loads(content)
        reason = content.get('reason', None)
        result = content.get('result', None)
        error_code = content.get('error_code', None)
        if error_code is None or reason is None:
            return False, '发送失败'
        if error_code == 0:
            if result is None:
                return False, '未知错误'
            else:
                sid = result.get('sid', None)
                if sid is None:
                    return False, '未知错误'
                else:
                    return True, sid
        else:
            if reason is None:
                return False, '未知错误'
            else:
                return False, reason
=========================调用短信接口=======================

try:
    mess = Message()
    code_generate = str(random.randint(1000, 9999))
    res, msg = mess.send(phone, code_generate)
    if res:
        now = int(time.time())
        ValidCode.objects.create(
            phone=phone,
            sid=msg,
            valid_code_time=now,
            code=code_generate
        )
        return HttpResponse(json.dumps({'state': 0, 'msg': '发送成功验证码在两分钟内有效'}),
                            status=200,
                            content_type='application/json; charset=utf-8')
    else:
        return HttpResponse(json.dumps({'state': -2, 'msg': msg}),
                            status=200,
                            content_type='application/json; charset=utf-8')
except Exception as e:
    print(e)
    msg = '验证码发送失败请稍后再试'
    return HttpResponse(json.dumps({'state': -2, 'msg': msg}),
                        status=200,
                        content_type='application/json; charset=utf-8')