diff --git a/pay-java-demo/src/main/java/com/egzosn/pay/demo/controller/PayPalPayController.java b/pay-java-demo/src/main/java/com/egzosn/pay/demo/controller/PayPalPayController.java
index e40d037..01af6e9 100644
--- a/pay-java-demo/src/main/java/com/egzosn/pay/demo/controller/PayPalPayController.java
+++ b/pay-java-demo/src/main/java/com/egzosn/pay/demo/controller/PayPalPayController.java
@@ -41,8 +41,10 @@ public class PayPalPayController {
     @PostConstruct
     public void init() {
         PayPalConfigStorage storage = new PayPalConfigStorage();
-        storage.setClientID("AZDS0IhUZvJTO99unlvSDMfbZIP-p-UecYXZdJoweha9LFuqKXKcQIGZgfVaX6oGiAOJAUuJD7JwyTl1");
+        storage.setClientId("AZDS0IhUZvJTO99unlvSDMfbZIP-p-UecYXZdJoweha9LFuqKXKcQIGZgfVaX6oGiAOJAUuJD7JwyTl1");
         storage.setClientSecret("EK2YaOrw3oLSDWIRzvb9BWGTjiPPhY1fFUu5ylhUsGYLc_h_dlpJ0hr_LDEkbO9MyKP2P83YcywbPaem");
+        //webhook回调时验签使用必须https://developer.paypal.com/dashboard/webhooksSimulator
+        storage.setWebHookId("AZDS0IhUZvJTO99unlvSDMfbZIP");
         storage.setTest(true);
         //发起付款后的页面转跳地址
         storage.setReturnUrl("http://www.egzosn.com/payPal/payBack.json");
diff --git a/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/api/PayPalConfigStorage.java b/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/api/PayPalConfigStorage.java
index 7c267dc..69c5a89 100644
--- a/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/api/PayPalConfigStorage.java
+++ b/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/api/PayPalConfigStorage.java
@@ -16,6 +16,12 @@ public class PayPalConfigStorage extends BasePayConfigStorage {
 
     private String clientId;
 
+    /**
+     * 回调验签使用
+     */
+    private String webHookId;
+
+
     @Override
     @Deprecated
     public String getAppid() {
@@ -86,7 +92,6 @@ public class PayPalConfigStorage extends BasePayConfigStorage {
      * 获取取消页面的url
      * <pre>
      * 注意：这里不是异步回调的通知
-     * IPN 地址设置的路径：https://developer.paypal.com/developer/ipnSimulator/
      * </pre>
      *
      * @return 取消页面的url
@@ -98,4 +103,12 @@ public class PayPalConfigStorage extends BasePayConfigStorage {
     public PayPalConfigStorage() {
         setAccessTokenLock(new ReentrantLock());
     }
+
+    public String getWebHookId() {
+        return webHookId;
+    }
+
+    public void setWebHookId(String webHookId) {
+        this.webHookId = webHookId;
+    }
 }
diff --git a/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/api/PayPalPayService.java b/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/api/PayPalPayService.java
index 0679e6a..e6cce20 100644
--- a/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/api/PayPalPayService.java
+++ b/pay-java-paypal/src/main/java/com/egzosn/pay/paypal/v2/api/PayPalPayService.java
@@ -62,7 +62,7 @@ import com.egzosn.pay.paypal.v2.utils.PayPalUtil;
  * 贝宝支付配置存储
  *
  * @author egan
- *
+ * <p>
  * email egzosn@gmail.com
  * date 2021-1-16 ‏‎22:15:09
  */
@@ -177,6 +177,7 @@ public class PayPalPayService extends BasePayService<PayPalConfigStorage> implem
 
     /**
      * 保留IPN的校验方式
+     *
      * @param noticeParams 参数
      * @return 结果
      */
@@ -191,6 +192,7 @@ public class PayPalPayService extends BasePayService<PayPalConfigStorage> implem
         return "VERIFIED".equals(resp);
 
     }
+
     @Override
     public boolean verify(NoticeParams noticeParams) {
 
@@ -208,8 +210,7 @@ public class PayPalPayService extends BasePayService<PayPalConfigStorage> implem
         }
         InputStream inputStream = clientCertificateResponseEntity.getBody();
         Collection<X509Certificate> clientCerts = PayPalUtil.getCertificateFromStream(inputStream);
-        Map<String, Object> body = noticeParams.getBody();
-        String webHookId = (String) body.get(Constants.ID);
+        String webHookId = payConfigStorage.getWebHookId();
         String actualSignatureEncoded = noticeParams.getHeader(Constants.PAYPAL_HEADER_TRANSMISSION_SIG);
         String authAlgo = noticeParams.getHeader(Constants.PAYPAL_HEADER_AUTH_ALGO);
         String transmissionId = noticeParams.getHeader(Constants.PAYPAL_HEADER_TRANSMISSION_ID);
@@ -466,7 +467,7 @@ public class PayPalPayService extends BasePayService<PayPalConfigStorage> implem
     @Override
     public Map<String, Object> ordersCapture(String tradeNo) {
         final HttpHeader header = authHeader();
-        header.addHeader(new BasicHeader("Content-Type","application/json"));
+        header.addHeader(new BasicHeader("Content-Type", "application/json"));
         JSONObject ordersCaptureInfo = getHttpRequestTemplate().postForObject(getReqUrl(PayPalTransactionType.ORDERS_CAPTURE), header, JSONObject.class, tradeNo);
 //        String captureId = ordersCaptureInfo.getJSONArray("purchaseUnits").getJSONObject(0).getJSONObject("payments").getJSONArray("captures").getJSONObject(0).getString("id");
         return ordersCaptureInfo;