附件预览

@@ -23,16 +23,18 @@ class Attachment extends Base {
 
     public function show(){
         $path = app()->request('path');
-        $filename = ROOT_PATH.$path;
+        $filename = PUBLIC_PATH.$path;
         if(file_exists($filename)){
             $file = new \SplFileInfo($filename);
             if(in_array($file->getExtension(),['jpg','jpeg','png','gif','mp4','mp3','pdf','txt','doc','docx','xls','xlsx','ppt','pptx','eml'])){
-                header("Content-type: ".$file->getMTime());
-                header("Content-Disposition: inline; filename=".$file->getFilename());
-                header("Content-Length: ".$file->getSize());
-                header("Cache-Control: max-age=0");
-                header("Last-Modified: ".$file->getMTime());
-                header("Expires: " . gmdate("D, d M Y H:i:s", time() + 3600 * 24 * 365) . " GMT");
+                app()->header("Content-Type",$file->getMTime());
+                app()->header("Content-Disposition","inline; filename=".$file->getFilename());
+                app()->header("Content-Transfer-Encoding","binary");
+                app()->header("Accept-Ranges","bytes");
+                app()->header("Content-Length",$file->getSize());
+                app()->header("Cache-Control","max-age=0");
+                app()->header("Last-Modified",$file->getMTime());
+                app()->header("Expires",gmdate("D, d M Y H:i:s", time() + 3600 * 24 * 365) . " GMT");
                 return file_get_contents($file->getPathname()) ;
             }
             return "<div style='text-align: center'>“".$file->getFilename()."“ 当前附件不支持预览</div>";

@@ -70,6 +70,11 @@ class App {
     private $bodyRaw = '';
 
     /**
+     * @var array
+     */
+    protected $headers = [];
+
+    /**
      * App constructor.
      */
     public function __construct()
@@ -360,10 +365,12 @@ class App {
     /**
      * @param $data
      * @param int $http_code
+     * @param array $headers
+     * @return mixed
      * @author：dc
-     * @time 2023/3/27 10:53
+     * @time 2025/8/20 9:53
      */
-    public static function echo($data, $http_code = 200){
+    public static function echo($data, $http_code = 200,array $headers = []){
 
 
         if(php_sapi_name()=='cli'){
@@ -374,11 +381,18 @@ class App {
 
         if(is_array($data)){
             @header("Content-Type:application/json; charset=UTF-8");
-            echo json_encode($data,JSON_UNESCAPED_UNICODE);
+            $data = json_encode($data,JSON_UNESCAPED_UNICODE);
         }else{
             @header("Content-Type:text/html; charset=UTF-8");
-            echo $data;
         }
+
+        if($headers){
+            foreach ($headers as $name=>$value){
+                @header($name.':'.$value);
+            }
+        }
+
+        echo $data;
     }
 
     public function getError(){
@@ -386,6 +400,20 @@ class App {
     }
 
     /**
+     * 输出头信息
+     * @param $name
+     * @param $value
+     * @author：dc
+     * @time 2025/8/20 9:50
+     */
+    public function header($name,$value){
+        $name = str_replace('-',' ',$name);
+        $name = ucwords($name);
+        $name = str_replace(' ','-',$name);
+        $this->headers[$name] = $value;
+    }
+
+    /**
      * 结束
      * @author：dc
      * @time 2023/2/13 10:54
@@ -408,7 +436,7 @@ class App {
                     $data['debug']  =   $last_error;
                 }
 
-                self::echo($data,502);
+                self::echo($data,502,$app->headers);
 
                 return true;
             }
@@ -420,7 +448,7 @@ class App {
             logs($app->getError());
         }
 
-        self::echo($app->data);
+        self::echo($app->data,200,$app->headers);
 
 
         // 日志记录