CREATE TABLE change_openidlist(
  id BIGINT NOT NULL AUTO_INCREMENT,
  ori_openid varchar(100) NOT NULL,
  new_openid varchar(100) NOT NULL,
  CONSTRAINT crm_change_openidlist_pk PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_general_ci ;

pip install mysql-connector-python
pip install requests

# -*- coding: utf-8 -*-
import requests
import mysql.connector
def handle_data():
  try:
    token = get_access_token()
    #自動(dòng)提交方式 autocommit=True
    conn = mysql.connector.connect(host='127.0.0.1', port='3306', user='user', password='password', database='wx', use_unicode=True,autocommit=True);
    qcursor = conn.cursor(buffered=True)
    wcursor = conn.cursor()
    #舊公眾號(hào) openid
    qcursor.execute('select openid from wxmembers')
    size = 100
    while True:
      list = qcursor.fetchmany(size)
      if not list:
        break
      changeopenid_list = get_changeopenid_list(list,token)
      wcursor.executemany('insert into change_openidlist (ori_openid,new_openid) values (%s, %s)',changeopenid_list)
  except mysql.connector.Error as e:
    print ('Error : {}'.format(e))
  finally:
    qcursor.close
    wcursor.close()
    conn.close
    print 'openid handle finished!'
def get_access_token():
  new_appid = '00000'
  new_secret = '11111'
  url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential' # grant_type為固定值
  payload = {'appid': new_appid, 'secret': new_secret}
  r = requests.get(url,params = payload)
  response = r.json()
  return response['access_token']
def get_changeopenid_list(ori_openid_list,token):
  new_access_token = token
  ori_appid = '33333'
  url = 'http://api.weixin.qq.com/cgi-bin/changeopenid?access_token='+ new_access_token
  payload = {'to_appid': ori_appid, 'openid_list': ori_openid_list}
  r = requests.post(url,json = payload)
  response = r.json()
  result_list = response['result_list']
  openid_list = [[result['ori_openid'],result['new_openid']] for result in result_list if result['err_msg'] == 'ok']
  return openid_list
if __name__ == '__main__':
  handle_data()