FileReference 上傳圖檔

上傳圖檔後, 再載入該圖檔

為了避免中文檔名的影響,
上傳檔案的同時, 傳給後端一個 md5 編碼後的字串
並以該字串為上傳後的檔名

Frame Actions

import com.gsolo.encryption.MD5;

var uploadURL:String = "upload_uni_9.php";
var req:URLRequest = new URLRequest(uploadURL);
var myMD5:String;
var file:FileReference = new FileReference();

req.method = URLRequestMethod.POST;

// 按 upload_btn 選擇上傳的檔案upload_btn.addEventListener(MouseEvent.MOUSE_UP, myMouseUp);
function myMouseUp(e:Event):void{
   file.browse([new FileFilter("Images", "*.jpg;*.gif;*.png")]);
}
//
file.addEventListener(Event.SELECT, myFileSelect);
file.addEventListener(Event.COMPLETE, myFileComplete);
// 選擇所欲上傳的圖檔後
function myFileSelect(e:Event):void{
   var vars:URLVariables = new URLVariables();
   myMD5 = MD5.encrypt(file.name+new Date().getTime());
   vars.md5 = myMD5;
   req.data = vars;
   file.upload(req);
}
// 上傳完成後
function myFileComplete(e:Event):void{
   var dotIndex:int = file.name.lastIndexOf(".");
   var ext:String = file.name.substring(dotIndex);
   var picURL:String = "./imgs/"+myMD5+ext;
   // 載入圖片
   var picReq:URLRequest = new URLRequest(picURL);
   var pic:Loader = new Loader();
   pic.load(picReq);
   pic.x = 100;
   pic.y = 100;
   this.addChild(pic);
}

PHP

// 圖檔上傳後所欲存放的目錄
$up_dir = "./imgs/";
// 若目錄不存在, 則建立之
if(!is_dir($up_dir))
   mkdir($up_dir, 0755);
// 取得上傳檔案的副檔名
$pos = strrpos($_FILES["Filedata"]["name"], ".");
if ($pos === false) {
   $ext = "";
}else{
   $ext = substr($_FILES["Filedata"]["name"], $pos);
}
// 以傳入的md5為儲存的檔名
$up_file = $up_dir . $_POST["md5"] . $ext;
// 將檔案放到設定的目錄內
move_uploaded_file($_FILES["Filedata"]["tmp_name"], $up_file);
chmod($up_file, 0777);

將 ByteArray 物件傳給 PHP 存檔

ByteArray 物件可以透過 URLRequest 物件傳給後端

_btn.addEventListener(MouseEvent.MOUSE_UP, myMouseUp);
function myMouseUp(e:Event){
   var req:URLRequest = new URLRequest("test_request.php");
   req.data = byte_array_data;
   req.method = URLRequestMethod.POST;
   req.contentType = 'application/octet-stream';
   flash.net.navigateToURL(req, "_blank");
}

若使用 PHP

$data = $GLOBALS['HTTP_RAW_POST_DATA'];
if (is_null($data)) {
   echo "No data was sent";
} else {
   $file = fopen("test.jpg", "w") or die("Can't open file");
   if(!fwrite($file, $data)){
      echo "Error writing to file";
   }
   print "OK\n";
   fclose($file);
}