diff --git a/library/think/response.php b/library/think/response.php
index 0fcd1a86..42cc890d 100644
--- a/library/think/response.php
+++ b/library/think/response.php
@@ -165,24 +165,26 @@ class Response
      */
     public static function success($msg = '', $data = '', $url = '', $wait = 3)
     {
-        $code       = 1;
-        if(is_numeric($msg)){
-            $code   = $msg;
-            $msg    = '';
+        $code = 1;
+        if (is_numeric($msg)) {
+            $code = $msg;
+            $msg  = '';
         }
-        $result     = [
+        $result = [
             'code' => $code,
             'msg'  => $msg,
             'data' => $data,
             'url'  => $url ?: $_SERVER["HTTP_REFERER"],
             'wait' => $wait,
         ];
-        $type       = Config::get('default_return_type');
+
         if (IS_AJAX) {
-            $type   = Config::get('default_ajax_return');
+            $type = Config::get('default_ajax_return');
+        } else {
+            $type = Config::get('default_return_type');
         }
         if ('html' == $type) {
-            $result = \think\View::getInstance()->fetch(Config::get('dispatch_jump_tmpl'), $result);
+            $result = \think\View::instance()->fetch(Config::get('dispatch_jump_tmpl'), $result);
         }
         self::type($type);
         return $result;
@@ -199,24 +201,26 @@ class Response
      */
     public static function error($msg = '', $data = '', $url = '', $wait = 3)
     {
-        $code       = 0;
-        if(is_numeric($msg)){
-            $code   = $msg;
-            $msg    = '';
+        $code = 0;
+        if (is_numeric($msg)) {
+            $code = $msg;
+            $msg  = '';
         }
-        $result     = [
+        $result = [
             'code' => $code,
             'msg'  => $msg,
             'data' => $data,
             'url'  => $url ?: 'javascript:history.back(-1);',
             'wait' => $wait,
         ];
-        $type       = Config::get('default_return_type');
+
         if (IS_AJAX) {
-            $type   = Config::get('default_ajax_return');
+            $type = Config::get('default_ajax_return');
+        } else {
+            $type = Config::get('default_return_type');
         }
         if ('html' == $type) {
-            $result = \think\View::getInstance()->fetch(Config::get('dispatch_jump_tmpl'), $result);
+            $result = \think\View::instance()->fetch(Config::get('dispatch_jump_tmpl'), $result);
         }
         self::type($type);
         return $result;
diff --git a/library/think/view.php b/library/think/view.php
index 5122b749..17b31b0a 100644
--- a/library/think/view.php
+++ b/library/think/view.php
@@ -13,6 +13,8 @@ namespace think;
 
 class View
 {
+    // 视图实例
+    protected static $instance = null;
     // 模板引擎实例
     protected $engine = null;
     // 模板主题名称
@@ -40,13 +42,18 @@ class View
         $this->config($config);
         $this->engine($this->config['engine_type']);
     }
+
     /**
      * 初始化视图
      * @access public
      * @param array $config  配置参数
      */
-    static public function getInstance(array $config = []){
-        return new self($config);
+    public static function instance(array $config = [])
+    {
+        if (is_null(self::$instance)) {
+            self::$instance = new self($config);
+        }
+        return self::$instance;
     }
 
     /**
diff --git a/library/traits/controller/view.php b/library/traits/controller/view.php
index 5ee15560..4dc744be 100644
--- a/library/traits/controller/view.php
+++ b/library/traits/controller/view.php
@@ -29,7 +29,7 @@ trait View
     {
         // 模板引擎参数
         if (is_null($this->view)) {
-            $this->view = new \think\View(Config::get()); // 只能这样写，不然view会冲突
+            $this->view = \think\View::instance(Config::get()); // 只能这样写，不然view会冲突
         }
     }
 
diff --git a/start.php b/start.php
index 765aa00e..90135a8c 100644
--- a/start.php
+++ b/start.php
@@ -46,6 +46,10 @@ if (APP_HOOK && isset($mode['tags'])) {
 if (APP_AUTO_BUILD && is_file(APP_PATH . 'build.php')) {
     Build::run(include APP_PATH . 'build.php');
 }
-Loader::addNamespace('tests', TEST_PATH);
-// 执行应用
-!IN_UNIT_TEST && App::run();
+
+if (IN_UNIT_TEST) {
+    Loader::addNamespace('tests', TEST_PATH);
+} else {
+    // 执行应用
+    App::run();
+}