diff --git a/src/Events.php b/src/Events.php
index 3f70d8e..96e1269 100644
--- a/src/Events.php
+++ b/src/Events.php
@@ -2,23 +2,37 @@
 
 namespace Yansongda\Pay;
 
+use Symfony\Component\EventDispatcher\Event;
 use Symfony\Component\EventDispatcher\EventDispatcher;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
+/**
+ * @author yansongda <me@yansongda.cn>
+ *
+ * @method static Event dispatch($eventName, Event $event = null) Dispatches an event to all registered listeners
+ * @method static array getListeners($eventName = null) Gets the listeners of a specific event or all listeners sorted by descending priority.
+ * @method static int|null getListenerPriority($eventName, $listener) Gets the listener priority for a specific event.
+ * @method static bool hasListeners($eventName = null) Checks whether an event has any registered listeners.
+ * @method static addListener($eventName, $listener, $priority = 0) Adds an event listener that listens on the specified events.
+ * @method static removeListener($eventName, $listener) Removes an event listener from the specified events.
+ * @method static addSubscriber(EventSubscriberInterface $subscriber) Adds an event subscriber.
+ * @method static removeSubscriber(EventSubscriberInterface $subscriber)
+ */
 class Events
 {
     /**
      * Start pay.
      *
-     * @Event("Yansongda\Pay\Events\StartingPay")
+     * @Event("Yansongda\Pay\Events\PayStarting")
      */
-    const STARTING_PAY = 'yansongda.pay.starting';
+    const PAY_STARTING = 'yansongda.pay.starting';
 
     /**
      * Before pay.
      *
-     * @Event("Yansongda\Pay\Events\PayBefore")
+     * @Event("Yansongda\Pay\Events\PayStarted")
      */
-    const BEFORE_PAY = 'yansongda.pay.before';
+    const PAY_STARTED = 'yansongda.pay.started';
 
     /**
      * Paying.
diff --git a/src/Events/BeforePay.php b/src/Events/PayStarted.php
similarity index 95%
rename from src/Events/BeforePay.php
rename to src/Events/PayStarted.php
index 8d59070..c7f2c0f 100644
--- a/src/Events/BeforePay.php
+++ b/src/Events/PayStarted.php
@@ -2,7 +2,7 @@
 
 namespace Yansongda\Pay\Events;
 
-class BeforePay extends Event
+class PayStarted extends Event
 {
     /**
      * Endpoint.
diff --git a/src/Events/StartingPay.php b/src/Events/PayStarting.php
similarity index 92%
rename from src/Events/StartingPay.php
rename to src/Events/PayStarting.php
index ca7ed20..c44a540 100644
--- a/src/Events/StartingPay.php
+++ b/src/Events/PayStarting.php
@@ -2,7 +2,7 @@
 
 namespace Yansongda\Pay\Events;
 
-class StartingPay extends Event
+class PayStarting extends Event
 {
     /**
      * Params.
diff --git a/src/Listeners/KernelSubscriber.php b/src/Listeners/KernelSubscriber.php
index 6de4f95..bf1fd67 100644
--- a/src/Listeners/KernelSubscriber.php
+++ b/src/Listeners/KernelSubscriber.php
@@ -28,17 +28,17 @@ class KernelSubscriber implements EventSubscriberInterface
     public static function getSubscribedEvents ()
     {
         return [
-            Events::STARTING_PAY => [],
-            Events::BEFORE_PAY => [],
-            Events::API_REQUESTING => [],
-            Events::API_REQUESTED => [],
-            Events::SIGN_FAILED => [],
-            Events::REQUEST_RECEIVED => [],
-            Events::METHOD_CALLED => []
+            Events::PAY_STARTING => ['writeLog', 256],
+            Events::PAY_STARTED => ['writeLog', 256],
+            Events::API_REQUESTING => ['writeLog', 256],
+            Events::API_REQUESTED => ['writeLog', 256],
+            Events::SIGN_FAILED => ['writeLog', 256],
+            Events::REQUEST_RECEIVED => ['writeLog', 256],
+            Events::METHOD_CALLED => ['writeLog', 256]
         ];
     }
 
-    public function WriteLog()
+    public function writeLog(Events\Event $event)
     {
 
     }
diff --git a/src/Pay.php b/src/Pay.php
index 2c47eef..2022f1d 100644
--- a/src/Pay.php
+++ b/src/Pay.php
@@ -6,6 +6,7 @@ use Yansongda\Pay\Contracts\GatewayApplicationInterface;
 use Yansongda\Pay\Exceptions\InvalidGatewayException;
 use Yansongda\Pay\Gateways\Alipay;
 use Yansongda\Pay\Gateways\Wechat;
+use Yansongda\Pay\Listeners\KernelSubscriber;
 use Yansongda\Supports\Config;
 use Yansongda\Supports\Log;
 use Yansongda\Supports\Str;
@@ -134,5 +135,7 @@ class Pay
     protected function registerEventService()
     {
         Events::setDispatcher(Events::createDispatcher());
+
+        Events::addSubscriber(new KernelSubscriber());
     }
 }