diff --git a/app/Events/SendAnnouncement.php b/app/Events/SendAnnouncement.php
index 49bee59..cca6be8 100644
--- a/app/Events/SendAnnouncement.php
+++ b/app/Events/SendAnnouncement.php
@@ -2,7 +2,6 @@
 
 namespace App\Events;
 
-use Carbon\Carbon;
 use Illuminate\Broadcasting\Channel;
 use Illuminate\Broadcasting\InteractsWithSockets;
 use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
@@ -13,36 +12,27 @@ class SendAnnouncement implements ShouldBroadcast
 {
     use Dispatchable, InteractsWithSockets, SerializesModels;
 
-    public string $message;
-    public string $broadcastTime;
+    public $message;
 
-    /**
-     * Create a new event instance.
-     */
-    public function __construct(string $message) {
+    public function __construct($message)
+    {
         $this->message = $message;
-        $this->broadcastTime = Carbon::now()->toDateTimeString();
     }
 
-    /**
-     * Get the channels the event should broadcast on.
-     *
-     * @return array<int, Channel>
-     */
-    public function broadcastOn(): array {
+    // 定义事件要广播到的公共频道
+    public function broadcastOn(): array
+    {
         return [
-            new Channel('channel-pub'),
+            new Channel('test-channel'), // 公共频道
         ];
     }
 
-    /**
-     * @return array
-     */
-    public function broadcastWith(): array {
+    // 可选：自定义广播数据
+    public function broadcastWith(): array
+    {
         return [
-            'name' => 'MyTestEvent',
             'message' => $this->message,
-            'broadcastTime' => $this->broadcastTime
+            'time' => now()->toDateTimeString(),
         ];
     }
 }
diff --git a/routes/admin/api.php b/routes/admin/api.php
index c578b00..007d59f 100644
--- a/routes/admin/api.php
+++ b/routes/admin/api.php
@@ -51,11 +51,6 @@ Route::group(['prefix' => 'admin'], function () {
     Route::post('/login', [AuthController::class, 'login']);
 
     // get测试区
-    Route::get('/test_broadcast', function () {
-        \App\Events\SendAnnouncement::dispatch("Hello, this is a real-time message!");
-
-        return 'Event broadcasted!';
-    });
 
     // 需要认证的接口
     Route::middleware(['admin.auth'])->group(function () {