完善响应类

framework/library/App.php

@@ -44,10 +44,12 @@ class App
         $response = Response::instance();
 
         // 处理请求并得到数据
-        $responseData = $response->dispatch($request->execute($type, $defaultModule));
+        $responseData = $response->header([
+            'X-Powered-By: TOP-Framework'
+        ])->dispatch($request->execute($type, $defaultModule));
 
         // 输出内容
-        echo $responseData;
+        echo $responseData->content;
 
     }
 }

framework/library/http/Response.php

@@ -19,7 +19,7 @@ class Response
      * 响应内容
      * @var null
      */
-    private $content = null;
+    public $content = null;
 
     /**
      * 响应头
@@ -29,11 +29,19 @@ class Response
 
     /**
      * 设置Header
-     * @param array $header
+     * @param null $header
      * @return $this
      */
-    public function header($header = [])
+    public function header($header = null)
     {
+        if (is_array($header)) {
+            $this->header = array_merge($this->header, $header);
+        } else {
+            $this->header[] = $header;
+        }
+        foreach ($this->header as $value) {
+            header($value);
+        }
         return $this;
     }
 
@@ -44,11 +52,15 @@ class Response
      */
     public function dispatch($data)
     {
-        // 处理响应数据，并返回
-        $responseData = new ResponseData($data);
-        $this->content = $responseData->dispatch();
+        if ($data instanceof Response) {
+            return $data;
+        } else {
+            // 处理响应数据，并返回
+            $responseData = new ResponseData($data);
+            $this->content = $responseData->dispatch();
 
-        return $this->content;
+            return $this;
+        }
     }
 
 }

framework/middleware/View.php

@@ -19,7 +19,9 @@ class View implements MiddlewareIfs
             $cache = File::instance($config['cacheDir']);
             if ($cache->exists($ident)) {
                 $content = $cache->get($ident);
-                return Response::instance()->dispatch($content);
+                return Response::instance()->header([
+                    'HTTP/1.1 304 Not Modified'
+                ])->dispatch($content);
             }
         }
         return true;