diff --git a/HttpServer/Events/OnWorkerStart.php b/HttpServer/Events/OnWorkerStart.php
index 59c29377..781ccd60 100644
--- a/HttpServer/Events/OnWorkerStart.php
+++ b/HttpServer/Events/OnWorkerStart.php
@@ -40,25 +40,7 @@ class OnWorkerStart extends Callback
         $annotation = Snowflake::app()->getAnnotation();
         $annotation->setLoader(unserialize($runtime));
 
-        putenv('state=start');
-        putenv('worker=' . $this->server->worker_id);
-
-        $pipeLine = new Pipeline();
-        $pipeLine->if($isWorker, function ($annotation, $server) {
-                $annotation->runtime(CONTROLLER_PATH);
-                $annotation->runtime(APP_PATH, CONTROLLER_PATH);
-
-                name($server->worker_pid, 'Worker.' . $server->worker_id);
-            })
-            ->else(function ($annotation, $server) {
-                $annotation->runtime(MODEL_PATH);
-
-                name($server->worker_pid, 'Task.' . $server->worker_id);
-            })
-            ->catch(function (\Throwable $throwable) {
-                $this->addError($throwable->getMessage());
-            })
-            ->exec($annotation, $this->server);
+        return $annotation;
     }
 
 
@@ -71,15 +53,27 @@ class OnWorkerStart extends Callback
      */
     public function onHandler(Server $server, int $worker_id): void
     {
-        $this->server = $server;
-
-        $this->injectLoader($this->isWorker($worker_id));
-
-        if ($worker_id < $server->setting['worker_num']) {
-            $this->onWorker($server, $worker_id);
-        } else {
-            $this->onTask($server, $worker_id);
-        }
+        $annotation = $this->injectLoader();
+        (new Pipeline())
+            ->if($this->isWorker($worker_id), function ($annotation, $server, $worker_id) {
+                $annotation->runtime(CONTROLLER_PATH);
+                $annotation->runtime(APP_PATH, CONTROLLER_PATH);
+                $this->onWorker($server, $server->worker_id);
+                name($server->worker_pid, 'Worker.' . $worker_id);
+            })
+            ->else(function ($annotation, $server, $worker_id) {
+                $annotation->runtime(MODEL_PATH);
+                $this->onTask($server, $server->worker_id);
+                name($server->worker_pid, 'Task.' . $worker_id);
+            })
+            ->catch(function (\Throwable $throwable) {
+                $this->addError($throwable->getMessage());
+            })
+            ->before(function ($annotation, $server, $worker_id) {
+                putenv('state=start');
+                putenv('worker=' . $worker_id);
+            })
+            ->exec($annotation, $server, $worker_id);
     }
 
 
diff --git a/HttpServer/Events/Pipeline.php b/HttpServer/Events/Pipeline.php
index 73b40ce8..8735dca9 100644
--- a/HttpServer/Events/Pipeline.php
+++ b/HttpServer/Events/Pipeline.php
@@ -10,6 +10,8 @@ class Pipeline
     private \Closure $_if;
     private \Closure $_else;
     private \Closure $_catch;
+    private \Closure $_after;
+    private \Closure $_before;
 
     private bool $condition;
 
@@ -48,6 +50,26 @@ class Pipeline
         return $this;
     }
 
+    /**
+     * @param \Closure $handler
+     * @return $this
+     */
+    public function after(\Closure $handler): static
+    {
+        $this->_after = $handler;
+        return $this;
+    }
+
+    /**
+     * @param \Closure $handler
+     * @return $this
+     */
+    public function before(\Closure $handler): static
+    {
+        $this->_before = $handler;
+        return $this;
+    }
+
 
     /**
      * @param $argv
@@ -56,16 +78,18 @@ class Pipeline
     public function exec(...$argv)
     {
         try {
+            call_user_func($this->_before, ...$argv);
             if ($this->condition !== true) {
                 call_user_func($this->_else, ...$argv);
             } else {
                 call_user_func($this->_if, ...$argv);
             }
-            var_dump(__METHOD__);
             return $argv;
         } catch (\Throwable $exception) {
             call_user_func($this->_catch, $exception);
             return $argv;
+        } finally {
+            call_user_func($this->_after, ...$argv);
         }
     }