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                # 文件上傳-后臺基礎(php) > 文章介紹了常規的后臺邏輯,如果想自定義上傳處理器(比如把文件上傳到第三方服務器等)請查看 [后臺進階](文件上傳-后臺進階.md) 篇文檔 EpiiAdmin后臺默認包含了上傳接口,前臺一般無需設置相關接口,但以下場景你可能需要自定義后臺的處理流程(別擔心,很簡單)。 - 當你需要自定義上傳的格式,默認上傳處理的格式主要為圖片,文檔等 - 當你需要自定義上傳的文件大小。 - 其它場景 ## 設置自己的上傳邏輯需要以下操作 1. 后臺編寫接口邏輯 2. 前端在上傳組件中添加`data-url="?app=myupload@upload"`指定自己的上傳地址。 ### 1、假設后臺的上傳處理為: `app=myupload@upload` ```php class myupload { public function upload() { echo AdminUiUpload::doUpload(["gif", "jpeg", "jpg", "png",'pdf','rar','zip'], 2048000); exit; } } ``` 函數定義為: ```php public static function doUpload(array $allowedExts = ["gif", "jpeg", "jpg", "png"], $file_size = 204800, $dir = null, $url_pre = null): string { return json_encode(self::getUploadHandler()->handlePostFiles( $allowedExts , $file_size , $dir , $url_pre )->getResult(), true); } ``` ### 2、前臺需要指向自定義的接口 ```html <button class="btn btn-danger" data-upload=1 data-input-id="img1" data-url="?app=myupload@upload" > 上傳 </button> ```
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