diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/AssistOrder.java b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/AssistOrder.java
index 67f95f5..52cb462 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/bean/AssistOrder.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/bean/AssistOrder.java
@@ -29,6 +29,12 @@ public class AssistOrder implements Order {
      * 交易类型
      */
     private TransactionType transactionType;
+
+    /**
+     * 异步回调通知
+     */
+    private String notifyUrl;
+
     /**
      * 订单附加信息，可用于预设未提供的参数，这里会覆盖以上所有的订单信息，
      */
@@ -122,5 +128,11 @@ public class AssistOrder implements Order {
         getAttrs().put(key, value);
     }
 
+    public String getNotifyUrl() {
+        return notifyUrl;
+    }
 
+    public void setNotifyUrl(String notifyUrl) {
+        this.notifyUrl = notifyUrl;
+    }
 }
diff --git a/pay-java-fuiou/src/main/java/com/egzosn/pay/fuiou/api/FuiouPayService.java b/pay-java-fuiou/src/main/java/com/egzosn/pay/fuiou/api/FuiouPayService.java
index d46bc98..e942664 100644
--- a/pay-java-fuiou/src/main/java/com/egzosn/pay/fuiou/api/FuiouPayService.java
+++ b/pay-java-fuiou/src/main/java/com/egzosn/pay/fuiou/api/FuiouPayService.java
@@ -13,6 +13,7 @@ import com.egzosn.pay.common.bean.BillType;
 import com.egzosn.pay.common.bean.MethodType;
 import com.egzosn.pay.common.bean.NoticeParams;
 import com.egzosn.pay.common.bean.NoticeRequest;
+import com.egzosn.pay.common.bean.OrderParaStructure;
 import com.egzosn.pay.common.bean.PayMessage;
 import com.egzosn.pay.common.bean.PayOrder;
 import com.egzosn.pay.common.bean.PayOutMessage;
@@ -72,6 +73,10 @@ public class FuiouPayService extends BasePayService<FuiouPayConfigStorage> {
      * 3.4订单退款
      */
     public static final String URL_NewSmpRefundGate = "newSmpRefundGate.do";
+    /**
+     * 异步通知
+     */
+    public static final String BACK_NOTIFY_URL = "back_notify_url";
 
 
     /**
@@ -199,7 +204,12 @@ public class FuiouPayService extends BasePayService<FuiouPayConfigStorage> {
         parameters.put("md5", sign);
         return parameters;
     }
-
+    private Map<String, Object> initNotifyUrl(Map<String, Object> parameters, AssistOrder order) {
+        OrderParaStructure.loadParameters(parameters, BACK_NOTIFY_URL, payConfigStorage.getNotifyUrl());
+        OrderParaStructure.loadParameters(parameters, BACK_NOTIFY_URL, order.getNotifyUrl());
+        OrderParaStructure.loadParameters(parameters, BACK_NOTIFY_URL, order);
+        return parameters;
+    }
     /**
      * 按序添加请求参数
      *
@@ -222,8 +232,7 @@ public class FuiouPayService extends BasePayService<FuiouPayConfigStorage> {
         //商户接受支付结果通知地址
         parameters.put("page_notify_url", payConfigStorage.getReturnUrl());
         //商户接受的支付结果后台通知地址 //非必填
-        parameters.put("back_notify_url", StringUtils.isBlank(payConfigStorage.getNotifyUrl()) ? "" : payConfigStorage.getNotifyUrl());
-
+        initNotifyUrl(parameters, order);
         if (null != order.getExpirationTime()) {
             parameters.put("order_valid_time", DateUtils.minutesRemaining(order.getExpirationTime()) + "m");
         }
diff --git a/pay-java-union/src/main/java/com/egzosn/pay/union/api/UnionPayService.java b/pay-java-union/src/main/java/com/egzosn/pay/union/api/UnionPayService.java
index 1cda4f4..42f82f3 100644
--- a/pay-java-union/src/main/java/com/egzosn/pay/union/api/UnionPayService.java
+++ b/pay-java-union/src/main/java/com/egzosn/pay/union/api/UnionPayService.java
@@ -31,6 +31,7 @@ import com.egzosn.pay.common.bean.BillType;
 
 import com.egzosn.pay.common.bean.MethodType;
 import com.egzosn.pay.common.bean.NoticeParams;
+import com.egzosn.pay.common.bean.OrderParaStructure;
 import com.egzosn.pay.common.bean.PayMessage;
 import com.egzosn.pay.common.bean.PayOrder;
 import com.egzosn.pay.common.bean.PayOutMessage;
@@ -166,6 +167,21 @@ public class UnionPayService extends BasePayService<UnionPayConfigStorage> {
         return String.format(FILE_TRANS_URL, getReqUrl());
     }
 
+    /**
+     * 后台通知地址
+     *
+     * @param parameters 预订单信息
+     * @param order      订单
+     * @return 预订单信息
+     */
+    private Map<String, Object> initNotifyUrl(Map<String, Object> parameters, AssistOrder order) {
+        //后台通知地址
+        OrderParaStructure.loadParameters(parameters, SDKConstants.param_backUrl, payConfigStorage.getNotifyUrl());
+        OrderParaStructure.loadParameters(parameters, SDKConstants.param_backUrl, order.getNotifyUrl());
+        OrderParaStructure.loadParameters(parameters, SDKConstants.param_backUrl, order);
+        return parameters;
+    }
+
 
     /**
      * 银联全渠道系统，产品参数，除了encoding自行选择外其他不需修改
@@ -182,11 +198,11 @@ public class UnionPayService extends BasePayService<UnionPayConfigStorage> {
         //商户代码
         params.put(SDKConstants.param_merId, payConfigStorage.getPid());
 
-        DateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
         //订单发送时间
-        params.put(SDKConstants.param_txnTime, df.format(System.currentTimeMillis()));
+        params.put(SDKConstants.param_txnTime, DateUtils.formatDate(new Date(), DateUtils.YYYYMMDDHHMMSS));
         //后台通知地址
         params.put(SDKConstants.param_backUrl, payConfigStorage.getNotifyUrl());
+
         //交易币种
         params.put(SDKConstants.param_currencyCode, "156");
         //接入类型，商户接入填0 ，不需修改（0：直连商户， 1： 收单机构 2：平台商户）
@@ -282,7 +298,7 @@ public class UnionPayService extends BasePayService<UnionPayConfigStorage> {
         Map<String, Object> params = this.getCommonParam();
 
         UnionTransactionType type = (UnionTransactionType) order.getTransactionType();
-
+        initNotifyUrl(params, order);
 
         //设置交易类型相关的参数
         type.convertMap(params);
@@ -645,7 +661,7 @@ public class UnionPayService extends BasePayService<UnionPayConfigStorage> {
         String responseStr = getHttpRequestTemplate().postForObject(this.getBackTransUrl(), params, String.class);
         JSONObject response = UriVariables.getParametersToMap(responseStr);
 
-        if (this.verify(response)) {
+        if (this.verify(new NoticeParams(response))) {
             final UnionRefundResult refundResult = UnionRefundResult.create(response);
             if (SDKConstants.OK_RESP_CODE.equals(refundResult.getRespCode())) {
                 return refundResult;