如何获得；媒体id“；“来自媒体”；图像名称/路径“；drupal 8

我已经在媒体内容类型上创建了图像字段，然后在文章节点中创建了媒体引用字段

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我想从映像路径中检索媒体id。

这是从文件名中获取媒体id的方法

//Load file by filename
//array
$file = $this->entityTypeManager
->getStorage('file')
->loadByProperties(['filename'=>$filename])

//get First file (make a loop if you get many files)
$fileId =array_shift($file))->fid->value

//Array of Medias witch contains your file
$this->entityTypeManager
->getStorage('media')
->loadByProperties(['field_media_image'=> $fileId])