页面生成图片优化

@@ -15,6 +15,7 @@ use app\portal\model\IndentModel;
 use cmf\controller\WeChatBaseController;
 use think\Db;
 use think\Image;
+use think\Session;
 
 class OrderSalesmanController extends WeChatBaseController
 {
@@ -266,6 +267,10 @@ class OrderSalesmanController extends WeChatBaseController
                 $new_img->thumb($width,$height - intval($top) * 2,5);
                 $new_img->thumb($width/2,($height - intval($top) * 2)/2);
                 $new_img->save('./upload/'.$img_url,'jpg',100);
+                $session_img = Session::get('img_url');
+                if(file_exists('./upload/'.$session_img)) {
+                    @unlink('./upload/'.$session_img);
+                }
                 $this->success('成功','',cmf_get_asset_url($img_url));
             }
         }
@@ -289,9 +294,12 @@ class OrderSalesmanController extends WeChatBaseController
                 //检查是否有该文件夹，如果没有就创建，并给予最高权限
                 mkdir($new_file, 0777,true);
             }
-            $new_file = $new_file.cmf_get_current_user_id().".{$type}";
+            $time = time();
+            $new_file = $new_file.cmf_get_current_user_id().$time.".{$type}";
             if (file_put_contents($new_file, base64_decode(str_replace($result[1], '', $base64_image_content)))){
-                return $file_path.cmf_get_current_user_id().".{$type}";
+                $file = $file_path.cmf_get_current_user_id().$time.".{$type}";
+                Session::set('img_url',$file);
+                return $file;
             }else{
                 return false;
             }