diff --git a/library/think/Hook.php b/library/think/Hook.php
index b789d08a..b2cb0471 100644
--- a/library/think/Hook.php
+++ b/library/think/Hook.php
@@ -11,6 +11,9 @@
 
 namespace think;
 
+use think\Debug;
+use think\Log;
+
 class Hook
 {
 
diff --git a/library/think/Url.php b/library/think/Url.php
index bd895c25..de222ea5 100644
--- a/library/think/Url.php
+++ b/library/think/Url.php
@@ -11,6 +11,10 @@
 
 namespace think;
 
+use think\Cache;
+use think\Config;
+use think\Route;
+
 class Url
 {
     /**
diff --git a/mode/common.php b/mode/common.php
index e29cffdc..b56e1f06 100644
--- a/mode/common.php
+++ b/mode/common.php
@@ -26,48 +26,51 @@ return [
 
     // 别名定义
     'alias'     => [
-        'think\App'                            => CORE_PATH . 'App' . EXT,
-        'think\Build'                          => CORE_PATH . 'Build' . EXT,
-        'think\Cache'                          => CORE_PATH . 'Cache' . EXT,
-        'think\Config'                         => CORE_PATH . 'Config' . EXT,
-        'think\Console'                        => CORE_PATH . 'Console' . EXT,
-        'think\Controller'                     => CORE_PATH . 'Controller' . EXT,
-        'think\Cookie'                         => CORE_PATH . 'Cookie' . EXT,
-        'think\Db'                             => CORE_PATH . 'Db' . EXT,
-        'think\Debug'                          => CORE_PATH . 'Debug' . EXT,
-        'think\Error'                          => CORE_PATH . 'Error' . EXT,
-        'think\Exception'                      => CORE_PATH . 'Exception' . EXT,
-        'think\exception\DbException'          => CORE_PATH . 'exception' . DS . 'DbException' . EXT,
-        'think\exception\PDOException'         => CORE_PATH . 'exception' . DS . 'PDOException' . EXT,
-        'think\exception\ErrorException'       => CORE_PATH . 'exception' . DS . 'ErrorException' . EXT,
-        'think\exception\DbBindParamException' => CORE_PATH . 'exception' . DS . 'DbBindParamException' . EXT,
-        'think\exception\NotFoundException'    => CORE_PATH . 'exception' . DS . 'NotFoundException' . EXT,
-        'think\File'                           => CORE_PATH . 'File' . EXT,
-        'think\Hook'                           => CORE_PATH . 'Hook' . EXT,
-        'think\Input'                          => CORE_PATH . 'Input' . EXT,
-        'think\Lang'                           => CORE_PATH . 'Lang' . EXT,
-        'think\Log'                            => CORE_PATH . 'Log' . EXT,
-        'think\Model'                          => CORE_PATH . 'Model' . EXT,
-        'think\model\Relation'                 => CORE_PATH . 'model' . DS . 'Relation' . EXT,
-        'think\model\Merge'                    => CORE_PATH . 'model' . DS . 'Merge' . EXT,
-        'think\model\Pivot'                    => CORE_PATH . 'model' . DS . 'Pivot' . EXT,
-        'think\Response'                       => CORE_PATH . 'Response' . EXT,
-        'think\Process'                        => CORE_PATH . 'Process' . EXT,
-        'think\Route'                          => CORE_PATH . 'Route' . EXT,
-        'think\Session'                        => CORE_PATH . 'Session' . EXT,
-        'think\Template'                       => CORE_PATH . 'Template' . EXT,
-        'think\Url'                            => CORE_PATH . 'Url' . EXT,
-        'think\Validate'                       => CORE_PATH . 'Validate' . EXT,
-        'think\View'                           => CORE_PATH . 'View' . EXT,
-        'think\db\Connection'                  => CORE_PATH . 'db' . DS . 'Connection' . EXT,
-        'think\db\connector\Mysql'             => CORE_PATH . 'db' . DS . 'connector' . DS . 'Mysql' . EXT,
-        'think\db\Builder'                     => CORE_PATH . 'db' . DS . 'Builder' . EXT,
-        'think\db\Builder\Mysql'               => CORE_PATH . 'db' . DS . 'builder' . DS . 'Mysql' . EXT,
-        'think\db\Query'                       => CORE_PATH . 'db' . DS . 'Query' . EXT,
-        'think\view\driver\Think'              => CORE_PATH . 'view' . DS . 'driver' . DS . 'Think' . EXT,
-        'think\view\driver\Php'                => CORE_PATH . 'view' . DS . 'driver' . DS . 'Php' . EXT,
-        'think\template\driver\File'           => CORE_PATH . 'template' . DS . 'driver' . DS . 'File' . EXT,
-        'think\log\driver\File'                => CORE_PATH . 'log' . DS . 'driver' . DS . 'File' . EXT,
-        'think\cache\driver\File'              => CORE_PATH . 'cache' . DS . 'driver' . DS . 'File' . EXT,
+        'think\App'                             => CORE_PATH . 'App' . EXT,
+        'think\Build'                           => CORE_PATH . 'Build' . EXT,
+        'think\Cache'                           => CORE_PATH . 'Cache' . EXT,
+        'think\Config'                          => CORE_PATH . 'Config' . EXT,
+        'think\Console'                         => CORE_PATH . 'Console' . EXT,
+        'think\Controller'                      => CORE_PATH . 'Controller' . EXT,
+        'think\Cookie'                          => CORE_PATH . 'Cookie' . EXT,
+        'think\Db'                              => CORE_PATH . 'Db' . EXT,
+        'think\Debug'                           => CORE_PATH . 'Debug' . EXT,
+        'think\Error'                           => CORE_PATH . 'Error' . EXT,
+        'think\Exception'                       => CORE_PATH . 'Exception' . EXT,
+        'think\exception\DbException'           => CORE_PATH . 'exception' . DS . 'DbException' . EXT,
+        'think\exception\Handle'                => CORE_PATH . 'exception' . DS . 'Handle' . EXT,
+        'think\exception\HttpException'         => CORE_PATH . 'exception' . DS . 'HttpException' . EXT,
+        'think\exception\HttpResponseException' => CORE_PATH . 'exception' . DS . 'HttpResponseException' . EXT,
+        'think\exception\PDOException'          => CORE_PATH . 'exception' . DS . 'PDOException' . EXT,
+        'think\exception\ErrorException'        => CORE_PATH . 'exception' . DS . 'ErrorException' . EXT,
+        'think\exception\DbBindParamException'  => CORE_PATH . 'exception' . DS . 'DbBindParamException' . EXT,
+        'think\exception\ThrowableError'        => CORE_PATH . 'exception' . DS . 'ThrowableError' . EXT,
+        'think\File'                            => CORE_PATH . 'File' . EXT,
+        'think\Hook'                            => CORE_PATH . 'Hook' . EXT,
+        'think\Input'                           => CORE_PATH . 'Input' . EXT,
+        'think\Lang'                            => CORE_PATH . 'Lang' . EXT,
+        'think\Log'                             => CORE_PATH . 'Log' . EXT,
+        'think\Model'                           => CORE_PATH . 'Model' . EXT,
+        'think\model\Relation'                  => CORE_PATH . 'model' . DS . 'Relation' . EXT,
+        'think\model\Merge'                     => CORE_PATH . 'model' . DS . 'Merge' . EXT,
+        'think\model\Pivot'                     => CORE_PATH . 'model' . DS . 'Pivot' . EXT,
+        'think\Response'                        => CORE_PATH . 'Response' . EXT,
+        'think\Process'                         => CORE_PATH . 'Process' . EXT,
+        'think\Route'                           => CORE_PATH . 'Route' . EXT,
+        'think\Session'                         => CORE_PATH . 'Session' . EXT,
+        'think\Template'                        => CORE_PATH . 'Template' . EXT,
+        'think\Url'                             => CORE_PATH . 'Url' . EXT,
+        'think\Validate'                        => CORE_PATH . 'Validate' . EXT,
+        'think\View'                            => CORE_PATH . 'View' . EXT,
+        'think\db\Connection'                   => CORE_PATH . 'db' . DS . 'Connection' . EXT,
+        'think\db\connector\Mysql'              => CORE_PATH . 'db' . DS . 'connector' . DS . 'Mysql' . EXT,
+        'think\db\Builder'                      => CORE_PATH . 'db' . DS . 'Builder' . EXT,
+        'think\db\Builder\Mysql'                => CORE_PATH . 'db' . DS . 'builder' . DS . 'Mysql' . EXT,
+        'think\db\Query'                        => CORE_PATH . 'db' . DS . 'Query' . EXT,
+        'think\view\driver\Think'               => CORE_PATH . 'view' . DS . 'driver' . DS . 'Think' . EXT,
+        'think\view\driver\Php'                 => CORE_PATH . 'view' . DS . 'driver' . DS . 'Php' . EXT,
+        'think\template\driver\File'            => CORE_PATH . 'template' . DS . 'driver' . DS . 'File' . EXT,
+        'think\log\driver\File'                 => CORE_PATH . 'log' . DS . 'driver' . DS . 'File' . EXT,
+        'think\cache\driver\File'               => CORE_PATH . 'cache' . DS . 'driver' . DS . 'File' . EXT,
     ],
 ];
diff --git a/mode/sae.php b/mode/sae.php
index c17d12c8..4a944a6a 100644
--- a/mode/sae.php
+++ b/mode/sae.php
@@ -70,52 +70,55 @@ return [
 
     // 别名定义
     'alias'     => [
-        'think\App'                            => CORE_PATH . 'App' . EXT,
-        'think\Build'                          => CORE_PATH . 'Build' . EXT,
-        'think\Cache'                          => CORE_PATH . 'Cache' . EXT,
-        'think\Config'                         => CORE_PATH . 'Config' . EXT,
-        'think\Console'                        => CORE_PATH . 'Console' . EXT,
-        'think\Controller'                     => CORE_PATH . 'Controller' . EXT,
-        'think\Cookie'                         => CORE_PATH . 'Cookie' . EXT,
-        'think\Db'                             => CORE_PATH . 'Db' . EXT,
-        'think\Debug'                          => CORE_PATH . 'Debug' . EXT,
-        'think\Error'                          => CORE_PATH . 'Error' . EXT,
-        'think\Exception'                      => CORE_PATH . 'Exception' . EXT,
-        'think\exception\DbException'          => CORE_PATH . 'exception' . DS . 'DbException' . EXT,
-        'think\exception\PDOException'         => CORE_PATH . 'exception' . DS . 'PDOException' . EXT,
-        'think\exception\ErrorException'       => CORE_PATH . 'exception' . DS . 'ErrorException' . EXT,
-        'think\exception\DbBindParamException' => CORE_PATH . 'exception' . DS . 'DbBindParamException' . EXT,
-        'think\exception\NotFoundException'    => CORE_PATH . 'exception' . DS . 'NotFoundException' . EXT,
-        'think\File'                           => CORE_PATH . 'File' . EXT,
-        'think\Hook'                           => CORE_PATH . 'Hook' . EXT,
-        'think\Input'                          => CORE_PATH . 'Input' . EXT,
-        'think\Lang'                           => CORE_PATH . 'Lang' . EXT,
-        'think\Log'                            => CORE_PATH . 'Log' . EXT,
-        'think\Model'                          => CORE_PATH . 'Model' . EXT,
-        'think\model\Relation'                 => CORE_PATH . 'model' . DS . 'Relation' . EXT,
-        'think\model\Merge'                    => CORE_PATH . 'model' . DS . 'Merge' . EXT,
-        'think\model\Pivot'                    => CORE_PATH . 'model' . DS . 'Pivot' . EXT,
-        'think\Process'                        => CORE_PATH . 'Process' . EXT,
-        'think\Response'                       => CORE_PATH . 'Response' . EXT,
-        'think\Route'                          => CORE_PATH . 'Route' . EXT,
-        'think\Session'                        => CORE_PATH . 'Session' . EXT,
-        'think\Template'                       => CORE_PATH . 'Template' . EXT,
-        'think\Url'                            => CORE_PATH . 'Url' . EXT,
-        'think\Validate'                       => CORE_PATH . 'Validate' . EXT,
-        'think\View'                           => CORE_PATH . 'View' . EXT,
-        'think\db\Connection'                  => CORE_PATH . 'db' . DS . 'Connection' . EXT,
-        'think\db\connector\Mysql'             => CORE_PATH . 'db' . DS . 'connector' . DS . 'Mysql' . EXT,
-        'think\db\Builder'                     => CORE_PATH . 'db' . DS . 'Builder' . EXT,
-        'think\db\Builder\Mysql'               => CORE_PATH . 'db' . DS . 'builder' . DS . 'Mysql' . EXT,
-        'think\db\Query'                       => CORE_PATH . 'db' . DS . 'Query' . EXT,
-        'think\view\driver\Think'              => CORE_PATH . 'view' . DS . 'driver' . DS . 'Think' . EXT,
-        'think\view\driver\Php'                => CORE_PATH . 'view' . DS . 'driver' . DS . 'Php' . EXT,
-        'think\template\driver\File'           => CORE_PATH . 'template' . DS . 'driver' . DS . 'File' . EXT,
-        'think\log\driver\File'                => CORE_PATH . 'log' . DS . 'driver' . DS . 'File' . EXT,
-        'think\cache\driver\File'              => CORE_PATH . 'cache' . DS . 'driver' . DS . 'File' . EXT,
-        'think\log\driver\Sae'                 => CORE_PATH . 'log' . DS . 'driver' . DS . 'Sae' . EXT,
-        'think\cache\driver\Sae'               => CORE_PATH . 'cache' . DS . 'driver' . DS . 'Sae' . EXT,
-        'think\template\driver\Sae'            => CORE_PATH . 'template' . DS . 'driver' . DS . 'Sae' . EXT,
+        'think\App'                             => CORE_PATH . 'App' . EXT,
+        'think\Build'                           => CORE_PATH . 'Build' . EXT,
+        'think\Cache'                           => CORE_PATH . 'Cache' . EXT,
+        'think\Config'                          => CORE_PATH . 'Config' . EXT,
+        'think\Console'                         => CORE_PATH . 'Console' . EXT,
+        'think\Controller'                      => CORE_PATH . 'Controller' . EXT,
+        'think\Cookie'                          => CORE_PATH . 'Cookie' . EXT,
+        'think\Db'                              => CORE_PATH . 'Db' . EXT,
+        'think\Debug'                           => CORE_PATH . 'Debug' . EXT,
+        'think\Error'                           => CORE_PATH . 'Error' . EXT,
+        'think\Exception'                       => CORE_PATH . 'Exception' . EXT,
+        'think\exception\DbException'           => CORE_PATH . 'exception' . DS . 'DbException' . EXT,
+        'think\exception\Handle'                => CORE_PATH . 'exception' . DS . 'Handle' . EXT,
+        'think\exception\HttpException'         => CORE_PATH . 'exception' . DS . 'HttpException' . EXT,
+        'think\exception\HttpResponseException' => CORE_PATH . 'exception' . DS . 'HttpResponseException' . EXT,
+        'think\exception\PDOException'          => CORE_PATH . 'exception' . DS . 'PDOException' . EXT,
+        'think\exception\ErrorException'        => CORE_PATH . 'exception' . DS . 'ErrorException' . EXT,
+        'think\exception\DbBindParamException'  => CORE_PATH . 'exception' . DS . 'DbBindParamException' . EXT,
+        'think\exception\ThrowableError'        => CORE_PATH . 'exception' . DS . 'ThrowableError' . EXT,
+        'think\File'                            => CORE_PATH . 'File' . EXT,
+        'think\Hook'                            => CORE_PATH . 'Hook' . EXT,
+        'think\Input'                           => CORE_PATH . 'Input' . EXT,
+        'think\Lang'                            => CORE_PATH . 'Lang' . EXT,
+        'think\Log'                             => CORE_PATH . 'Log' . EXT,
+        'think\Model'                           => CORE_PATH . 'Model' . EXT,
+        'think\model\Relation'                  => CORE_PATH . 'model' . DS . 'Relation' . EXT,
+        'think\model\Merge'                     => CORE_PATH . 'model' . DS . 'Merge' . EXT,
+        'think\model\Pivot'                     => CORE_PATH . 'model' . DS . 'Pivot' . EXT,
+        'think\Process'                         => CORE_PATH . 'Process' . EXT,
+        'think\Response'                        => CORE_PATH . 'Response' . EXT,
+        'think\Route'                           => CORE_PATH . 'Route' . EXT,
+        'think\Session'                         => CORE_PATH . 'Session' . EXT,
+        'think\Template'                        => CORE_PATH . 'Template' . EXT,
+        'think\Url'                             => CORE_PATH . 'Url' . EXT,
+        'think\Validate'                        => CORE_PATH . 'Validate' . EXT,
+        'think\View'                            => CORE_PATH . 'View' . EXT,
+        'think\db\Connection'                   => CORE_PATH . 'db' . DS . 'Connection' . EXT,
+        'think\db\connector\Mysql'              => CORE_PATH . 'db' . DS . 'connector' . DS . 'Mysql' . EXT,
+        'think\db\Builder'                      => CORE_PATH . 'db' . DS . 'Builder' . EXT,
+        'think\db\Builder\Mysql'                => CORE_PATH . 'db' . DS . 'builder' . DS . 'Mysql' . EXT,
+        'think\db\Query'                        => CORE_PATH . 'db' . DS . 'Query' . EXT,
+        'think\view\driver\Think'               => CORE_PATH . 'view' . DS . 'driver' . DS . 'Think' . EXT,
+        'think\view\driver\Php'                 => CORE_PATH . 'view' . DS . 'driver' . DS . 'Php' . EXT,
+        'think\template\driver\File'            => CORE_PATH . 'template' . DS . 'driver' . DS . 'File' . EXT,
+        'think\log\driver\File'                 => CORE_PATH . 'log' . DS . 'driver' . DS . 'File' . EXT,
+        'think\cache\driver\File'               => CORE_PATH . 'cache' . DS . 'driver' . DS . 'File' . EXT,
+        'think\log\driver\Sae'                  => CORE_PATH . 'log' . DS . 'driver' . DS . 'Sae' . EXT,
+        'think\cache\driver\Sae'                => CORE_PATH . 'cache' . DS . 'driver' . DS . 'Sae' . EXT,
+        'think\template\driver\Sae'             => CORE_PATH . 'template' . DS . 'driver' . DS . 'Sae' . EXT,
     ],
 
 ];