增加 新的RouteNotFoundException异常

library/think/App.php

@@ -16,6 +16,7 @@ use think\Env;
 use think\Exception;
 use think\exception\HttpException;
 use think\exception\HttpResponseException;
+use think\exception\RouteNotFoundException;
 use think\Hook;
 use think\Lang;
 use think\Loader;
@@ -547,7 +548,7 @@ class App
             $must   = !is_null(self::$routeMust) ? self::$routeMust : $config['url_route_must'];
             if ($must && false === $result) {
                 // 路由无效
-                throw new HttpException(404, 'Route Not Found');
+                throw new RouteNotFoundException();
             }
         }
         if (false === $result) {

library/think/exception/RouteNotFoundException.php

@@ -0,0 +1,24 @@
+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
+// +----------------------------------------------------------------------
+// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
+// +----------------------------------------------------------------------
+// | Author: yunwuxin <448901948@qq.com>
+// +----------------------------------------------------------------------
+
+namespace think\exception;
+
+use think\exception\HttpException;
+
+class RouteNotFoundException extends HttpException
+{
+
+    public function __construct()
+    {
+        parent::__construct(404);
+    }
+
+}