将所有主要逻辑代码迁移到extend中，并在service中注册调用；

extend/think/UlthonAdminService.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace think;
+
+use app\common\event\AdminLoginSuccess\LogEvent;
+use app\common\event\AdminLoginType\DemoEvent;
+use app\common\provider\ExceptionHandle;
+use app\common\provider\Request;
+use app\common\provider\View;
+use think\app\Service as AppService;
+use think\captcha\CaptchaService;
+use think\facade\App;
+use think\migration\Service;
+
+class UlthonAdminService extends \think\Service
+{
+    public function boot()
+    {
+        // 绑定系统事件
+        $event_listen = [
+            'AppInit' => [],
+            'HttpRun' => [],
+            'HttpEnd' => [],
+            'LogLevel' => [],
+            'LogWrite' => [],
+            'AdminLoginSuccess' => [
+                LogEvent::class,
+            ],
+            'AdminLoginType' => [
+                DemoEvent::class,
+            ],
+        ];
+
+        $this->app->event->listenEvents($event_listen);
+
+        // 注册验证码服务
+        $this->app->register(CaptchaService::class);
+
+        // 注册多应用服务
+        $this->app->register(AppService::class);
+
+        // 注册数据库迁移服务
+        $this->app->register(Service::class);
+
+        // 绑定标识容器
+
+        $provider_default = [
+            'think\Request' => Request::class,
+            'think\exception\Handle' => ExceptionHandle::class,
+            'think\View' => View::class,
+        ];
+
+        $provider_setting = include App::getRootPath() . '/app/provider.php';
+
+        if (isset($provider_setting['think\App'])) {
+            unset($provider_setting['think\App']);
+        }
+
+        $provider = array_merge($provider_default, $provider_setting);
+
+        $this->app->bind($provider);
+
+        // 导入系统中间件
+
+        $middleware = [
+            // 全局请求缓存
+            // \think\middleware\CheckRequestCache::class,
+            // 多语言加载
+            // \think\middleware\LoadLangPack::class,
+            // Session初始化
+            100 => \think\middleware\SessionInit::class,
+        ];
+
+        $this->app->middleware->import($middleware);
+    }
+}