diff --git a/library/think/App.php b/library/think/App.php
index 37e664b9..9c417d6b 100644
--- a/library/think/App.php
+++ b/library/think/App.php
@@ -32,22 +32,14 @@ class App
     /**
      * 执行应用程序
      * @access public
-     * @param null|\think\Request $request Request对象
+     * @param Request $request Request对象
      * @return mixed
      * @throws Exception
      */
-    public static function run($request = null)
+    public static function run(Request $request = null)
     {
         is_null($request) && $request = Request::instance();
 
-        define('REQUEST_METHOD', $request->method());
-        define('IS_GET', REQUEST_METHOD == 'GET' ? true : false);
-        define('IS_POST', REQUEST_METHOD == 'POST' ? true : false);
-        define('IS_PUT', REQUEST_METHOD == 'PUT' ? true : false);
-        define('IS_DELETE', REQUEST_METHOD == 'DELETE' ? true : false);
-        define('IS_AJAX', $request->isAjax());
-        define('__EXT__', $request->ext());
-
         // 初始化应用
         $config = self::init('', Config::get());
 
@@ -133,7 +125,9 @@ class App
         if ($data instanceof Response) {
             return $data->send();
         } elseif (!is_null($data)) {
-            $type = IS_AJAX ? Config::get('default_ajax_return') : Config::get('default_return_type');
+            // 默认自动识别响应输出类型
+            $isAjax = $request->isAjax();
+            $type   = $isAjax ? Config::get('default_ajax_return') : Config::get('default_return_type');
             return Response::create($data, $type)->send();
         }
     }
diff --git a/library/think/Response.php b/library/think/Response.php
index 31052b84..5e817368 100644
--- a/library/think/Response.php
+++ b/library/think/Response.php
@@ -11,6 +11,9 @@
 
 namespace think;
 
+use think\Hook;
+use think\Request;
+
 class Response
 {
     // 输出类型的实例化对象
@@ -48,16 +51,20 @@ class Response
     public function __construct($data = [], $type = '', $options = [])
     {
         $this->data = $data;
-        $this->type = strtolower($type ?: (IS_AJAX ? 'json' : 'html'));
+        if (empty($type)) {
+            $isAjax = Request::instance()->isAjax();
+            $type   = $isAjax ? 'json' : 'html';
+        }
+        $this->type = strtolower($type);
 
         if (isset($this->contentTypes[$this->type])) {
             $this->contentType($this->contentTypes[$this->type]);
         }
-        if(!empty($options)){
+        if (!empty($options)) {
             $this->options = array_merge($this->options, $options);
         }
         // 方便获取某个类型的实例
-        self::$instance[$this->type] = $this;        
+        self::$instance[$this->type] = $this;
     }
 
     /**
@@ -70,7 +77,12 @@ class Response
      */
     public static function create($data = [], $type = '', $options = [])
     {
-        $type = strtolower($type ?: (IS_AJAX ? 'json' : 'html'));
+        if (empty($type)) {
+            $isAjax = Request::instance()->isAjax();
+            $type   = $isAjax ? 'json' : 'html';
+        }
+        $type = strtolower($type);
+
         if (!isset(self::$instance[$type])) {
             $class = (isset($options['namespace']) ? $options['namespace'] : '\\think\\response\\') . ucfirst($type);
             if (class_exists($class)) {
@@ -90,9 +102,9 @@ class Response
      * @return mixed
      * @throws Exception
      */
-    public function send($data = [])
+    public function send($data = null)
     {
-        $data = $data ?: $this->data;
+        $data = !is_null($data) ?: $this->data;
 
         if (isset($this->contentType)) {
             $this->contentType($this->contentType);
@@ -102,7 +114,7 @@ class Response
             $data = call_user_func_array($this->transform, [$data]);
         }
 
-        defined('RESPONSE_TYPE') or define('RESPONSE_TYPE',$this->type);
+        defined('RESPONSE_TYPE') or define('RESPONSE_TYPE', $this->type);
 
         // 处理输出数据
         $data = $this->output($data);
diff --git a/library/think/Route.php b/library/think/Route.php
index 962d733b..1ddcc933 100644
--- a/library/think/Route.php
+++ b/library/think/Route.php
@@ -11,6 +11,12 @@
 
 namespace think;
 
+use think\Config;
+use think\Hook;
+use think\Log;
+use think\Request;
+use think\Response;
+
 class Route
 {
     // 路由规则
@@ -600,7 +606,7 @@ class Route
         }
 
         // 获取当前请求类型的路由规则
-        $rules = self::$rules[REQUEST_METHOD];
+        $rules = self::$rules[$request->method()];
 
         if (!empty(self::$rules['*'])) {
             // 合并任意请求的路由规则
@@ -747,8 +753,8 @@ class Route
     private static function checkOption($option, $url, $request)
     {
         // 请求类型检测
-        if ((isset($option['method']) && false === stripos($option['method'], REQUEST_METHOD))
-            || (isset($option['ext']) && false === stripos($option['ext'], __EXT__)) // 伪静态后缀检测
+        if ((isset($option['method']) && false === stripos($option['method'], $request->method()))
+            || (isset($option['ext']) && false === stripos($option['ext'], $request->ext())) // 伪静态后缀检测
              || (isset($option['domain']) && !in_array($option['domain'], [$_SERVER['HTTP_HOST'], self::$subDomain])) // 域名检测
              || (!empty($option['https']) && !$request->isSsl()) // https检测
              || (!empty($option['before_behavior']) && false === Hook::exec($option['before_behavior'], $url)) // 行为检测
@@ -915,12 +921,13 @@ class Route
                 $action     = array_pop($path);
                 $controller = !empty($path) ? array_pop($path) : null;
                 $module     = APP_MULTI_MODULE && !empty($path) ? array_pop($path) : null;
+                $method     = Request::instance()->method();
                 // REST 操作方法支持
                 if ('[rest]' == $action) {
-                    $action = REQUEST_METHOD;
-                } elseif (Config::get('use_action_prefix') && !empty(self::$methodPrefix[REQUEST_METHOD])) {
+                    $action = $method;
+                } elseif (Config::get('use_action_prefix') && !empty(self::$methodPrefix[$method])) {
                     // 操作方法前缀支持
-                    $action = 0 !== strpos($action, self::$methodPrefix[REQUEST_METHOD]) ? self::$methodPrefix[REQUEST_METHOD] . $action : $action;
+                    $action = 0 !== strpos($action, self::$methodPrefix[$method]) ? self::$methodPrefix[$method] . $action : $action;
                 }
             }
             // 封装路由
diff --git a/library/think/Validate.php b/library/think/Validate.php
index 70745ba3..2b732dd9 100644
--- a/library/think/Validate.php
+++ b/library/think/Validate.php
@@ -12,6 +12,7 @@
 namespace think;
 
 use think\Input;
+use think\Request;
 
 class Validate
 {
@@ -684,7 +685,8 @@ class Validate
      */
     protected function method($value, $rule)
     {
-        return REQUEST_METHOD == strtoupper($rule);
+        $method = Request::instance()->method();
+        return $method == strtoupper($rule);
     }
 
     /**
diff --git a/library/think/controller/Rest.php b/library/think/controller/Rest.php
index c31e9287..4193e5e0 100644
--- a/library/think/controller/Rest.php
+++ b/library/think/controller/Rest.php
@@ -12,6 +12,7 @@
 namespace think\controller;
 
 use think\Response;
+use think\Request;
 
 abstract class Rest
 {
@@ -36,17 +37,19 @@ abstract class Rest
     public function __construct()
     {
         // 资源类型检测
-        if ('' == __EXT__) {
+        $request = Request::instance();
+        $ext = $request->ext();
+        if ('' == $ext) {
             // 自动检测资源类型
             $this->_type = $this->getAcceptType();
-        } elseif (!preg_match('/\(' . $this->restTypeList . '\)$/i', __EXT__)) {
+        } elseif (!preg_match('/\(' . $this->restTypeList . '\)$/i', $ext)) {
             // 资源类型非法 则用默认资源类型访问
             $this->_type = $this->restDefaultType;
         } else {
-            $this->_type = __EXT__;
+            $this->_type = $ext;
         }
         // 请求方式检测
-        $method = strtolower(REQUEST_METHOD);
+        $method = strtolower($request->method());
         if (false === stripos($this->restMethodList, $method)) {
             // 请求方式非法 则用默认请求方法
             $method = $this->restDefaultMethod;
diff --git a/library/think/log/driver/Trace.php b/library/think/log/driver/Trace.php
index 58f1f71d..dd640e6a 100644
--- a/library/think/log/driver/Trace.php
+++ b/library/think/log/driver/Trace.php
@@ -15,6 +15,7 @@ use think\Cache;
 use think\Config;
 use think\Db;
 use think\Debug;
+use think\Request;
 
 /**
  * 页面Trace调试
@@ -41,10 +42,11 @@ class Trace
      */
     public function save(array $log = [])
     {
-        if (IS_CLI || IS_AJAX || IS_API || (defined('RESPONSE_TYPE') && !in_array(RESPONSE_TYPE, ['html', 'view']))) {
+        if (IS_CLI || IS_API || Request::instance()->isAjax() || (defined('RESPONSE_TYPE') && !in_array(RESPONSE_TYPE, ['html', 'view']))) {
             // ajax cli api方式下不输出
             return false;
         }
+
         // 获取基本信息
         $runtime = microtime(true) - START_TIME;
         $reqs    = number_format(1 / number_format($runtime, 8), 2);
diff --git a/library/traits/controller/Jump.php b/library/traits/controller/Jump.php
index c0c6b1b0..45e2e2dd 100644
--- a/library/traits/controller/Jump.php
+++ b/library/traits/controller/Jump.php
@@ -16,6 +16,7 @@ namespace traits\controller;
 
 use think\Config;
 use think\exception\HttpResponseException;
+use think\Request;
 use think\Response;
 use think\response\Redirect;
 use think\View as ViewTemplate;
@@ -46,7 +47,7 @@ trait Jump
             'wait' => $wait,
         ];
 
-        $type = IS_AJAX ? Config::get('default_ajax_return') : Config::get('default_return_type');
+        $type = $this->getResponseType();
         if ('html' == strtolower($type)) {
             $result = ViewTemplate::instance(Config::get('template'), Config::get('view_replace_str'))
                 ->fetch(Config::get('dispatch_success_tmpl'), $result);
@@ -78,7 +79,7 @@ trait Jump
             'wait' => $wait,
         ];
 
-        $type = IS_AJAX ? Config::get('default_ajax_return') : Config::get('default_return_type');
+        $type = $this->getResponseType();
         if ('html' == strtolower($type)) {
             $result = ViewTemplate::instance(Config::get('template'), Config::get('view_replace_str'))
                 ->fetch(Config::get('dispatch_error_tmpl'), $result);
@@ -120,4 +121,14 @@ trait Jump
         throw new HttpResponseException($response);
     }
 
+    /**
+     * 获取当前的response 输出类型
+     * @access public
+     * @return string
+     */
+    public function getResponseType()
+    {
+        $isAjax = Request::instance()->isAjax();
+        return $isAjax ? Config::get('default_ajax_return') : Config::get('default_return_type');
+    }
 }