diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayService.java b/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayService.java
index 2716266b7081694734a71f481b5dcce1f37b1869..38bc4bef520eac2fbf89e838652eb25032343647 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayService.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/api/BasePayService.java
@@ -423,6 +423,30 @@ public abstract class BasePayService<PC extends PayConfigStorage> implements Pay
         return getPayMessageHandler().handle(payMessage, context, this);
     }
 
+    /**
+     * 使用转换过的参数进行回调处理
+     *
+     * @param data 转化后的参数Map
+     * @return 获得回调响应信息
+     */
+    @Override
+    public PayOutMessage payBack(Map<String, Object> data) {
+        if (LOG.isDebugEnabled()) {
+            LOG.debug("回调响应:" + JSON.toJSONString(data));
+        }
+        if (!verify(data)) {
+            return getPayOutMessage("fail", "失败");
+        }
+        PayMessage payMessage = this.createMessage(data);
+        Map<String, Object> context = new HashMap<String, Object>();
+        for (PayMessageInterceptor interceptor : interceptors) {
+            if (!interceptor.intercept(payMessage, context, this)) {
+                return successPayOutMessage(payMessage);
+            }
+        }
+        return getPayMessageHandler().handle(payMessage, context, this);
+    }
+
     /**
      * 创建消息
      *
diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayService.java b/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayService.java
index 7a66d42f46e9eb3434f4bf540c1f951fcc861003..5fce5a9bc0591dd5d4a48694380fc8f3fbd2fae0 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayService.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/api/PayService.java
@@ -340,6 +340,14 @@ public interface PayService<PC extends PayConfigStorage> {
      */
     PayOutMessage payBack(Map<String, String[]> parameterMap, InputStream is);
 
+    /**
+     * 使用转换过的参数进行回调处理
+     *
+     * @param data 转化后的参数Map
+     * @return 获得回调响应信息
+     */
+    PayOutMessage payBack(Map<String, Object> data);
+
     /**
      * 设置支付消息处理器,这里用于处理具体的支付业务
      *
diff --git a/pay-java-wx/src/main/java/com/egzosn/pay/wx/api/WxPayService.java b/pay-java-wx/src/main/java/com/egzosn/pay/wx/api/WxPayService.java
index 200279ffa4decb12400a515efd5b97d6ee569cec..e407211377dcf3a8b388d10b7fcd7861bf837062 100644
--- a/pay-java-wx/src/main/java/com/egzosn/pay/wx/api/WxPayService.java
+++ b/pay-java-wx/src/main/java/com/egzosn/pay/wx/api/WxPayService.java
@@ -274,7 +274,7 @@ public class WxPayService extends BasePayService<WxPayConfigStorage> implements
             if (WxTransactionType.JSAPI == order.getTransactionType()) {
                 params.put("signType", payConfigStorage.getSignType());
                 params.put("appId", payConfigStorage.getAppid());
-                params.put("timeStamp", System.currentTimeMillis() / 1000);
+                params.put("timeStamp", System.currentTimeMillis() / 1000 + "");
                 params.put("nonceStr", result.get(NONCE_STR));
                 params.put("package", "prepay_id=" + result.get("prepay_id"));
             }
@@ -287,7 +287,7 @@ public class WxPayService extends BasePayService<WxPayConfigStorage> implements
                 params.put("package", "Sign=WXPay");
             }
             String paySign = createSign(SignUtils.parameterText(params), payConfigStorage.getInputCharset());
-            params.put(SIGN, paySign);
+            params.put(WxTransactionType.JSAPI.equals(order.getTransactionType()) ? "paySign" : SIGN, paySign);
             return params;
         }
         throw new PayErrorException(new WxPayError(result.getString(RETURN_CODE), result.getString(RETURN_MSG_CODE), "Invalid sign value"));