diff --git a/unipay/init.py b/unipay/init.py
index 1323e6a..bb65f01 100644
--- a/unipay/init.py
+++ b/unipay/init.py
@@ -13,6 +13,7 @@ CONF = {
 		"mail": os.getenv("MAIL", ""),
 		"password": os.getenv("PASSWORD", ""),
 		"from_mail": os.getenv("FROM_MAIL", "")
+		"account_no": os.getenv("ACCOUNT_NO", "")
 	},
 	"wechat": {
 		"mchid": os.getenv("WXP_MCHID",""),
@@ -44,6 +45,7 @@ async def create_payment(request, params_kw=None):
 	if params_kw is None:
 		params_kw = request.params_kw
 	data = params_kw
+	data.request = request
 	provider = data.get("provider")
 	if provider not in PROVIDERS:
 		return {"error":"unknown provider"}
@@ -65,6 +67,9 @@ async def create_payment(request, params_kw=None):
 		plog = await pl.new_log(userid, orgid, payment_name, amount, fee, client_ip, currency=currency)
 		if plog:
 			data.out_trade_no = plog.id
+			data.customerid = orgid
+			data.userid = userid
+			data.client_ip = cloent_ip
 			res = await PROVIDERS[provider].create_payment(data)
 			return res
 		raise Exception('write payment_log error')
diff --git a/unipay/providers/transfer.py b/unipay/providers/transfer.py
index 9b755e7..40ade45 100644
--- a/unipay/providers/transfer.py
+++ b/unipay/providers/transfer.py
@@ -1,6 +1,7 @@
 import re
 from random import randint
 from typing import Any, Dict, Optional
+import urllib
 import poplib
 from appPublic.log import debug
 from appPublic.dictObject import DictObject
@@ -62,28 +63,50 @@ class EmailClient:
 				content = content.decode('utf-8')
 			return content
 
-class TransferPay(Gateway):
-	def __init__(self, from_mail="", pop3server="", email="", password=""):
+class TransferGateway(Gateway):
+	def __init__(self, from_mail="", pop3server="", email="", password="", account_no):
 		self.from_email = from_email
 		self.pop3server = pop3server
 		self.email = email
 		self.password = password
+		self.account_no = account_no
 		self.running = False
 	
+	async def new_tcode(self, sor):
+		tcode = self.gen_mailcode()
+		sql = "select * from transfercode where tcode=${tcode}$ and status='0'"
+		while True
+			recs = await sor.sqlExe(sql, {'tcode': tcode})
+			if len(recs) == 0:
+				break
+			tcode = self.gen_mailcode()
+		return tcode
+
 	async def create_payment(self, payload: Dict[str, Any]) -> str:
 		"""
 		返回一个可以在 H5 里直接重定向的支付宝支付 URL
 		"""
 		ns = {
-			"id": payload["out_trade_no"],
-			"customerid": payload['customerid'],
-			"amount": payload["amount"],
-			"tcode": self.gen_mailcode(),
+			"id": payload.out_trade_no,
+			"customerid": payload.customerid,
+			"amount": payload.amount,
 			"curdate": curDateString(),
 			"curtime": timestampstr(),
 			"status": '0'
 		}
-		return 
+		ns = DictObject(**ns)
+		ns.account_no = self.account_no
+		env = payload.request._run_ns
+		db = DBPools()
+		dbname = env.get_module_dbname('unipay')
+		async with db.sqlorContext(dbname) as sor:
+			sql = "select * from transfercode where tcode=${tcode}$ and status='0'"
+			ns.tcoce = await self.new_tcode(sor)
+			await sor.C('transfercode', ns.copy())
+			url = env.entire_url('transfer_info.ui')
+			query_str = urllib.parse.urlencode(ns)
+			return f'{url}?{query_str}'
+		return None
 
 	def get_transfer_data(self, mail):
 		assert mail.mailfrom == '95555@message.cmbchina.com'