您可以公开文件，然后Blob的媒体链接可以在任何地方访问。
https://cloud.google.com/storage/docs/access-control/making-data-
public
这是我的解决方案。
try { FileInputStream serviceAccount = new FileInputStream("firebaseKey/serviceAccountKey.json"); FirebaseOptions options = new FirebaseOptions.Builder() .setCredentials(GoogleCredentials.fromStream(serviceAccount)) .setDatabaseUrl("https://xxxxx.firebaseio.com") .build(); FirebaseApp fireApp = FirebaseApp.initializeApp(options); StorageClient storageClient = StorageClient.getInstance(fireApp); InputStream testFile = new FileInputStream(file.getPath()); String blobString = "NEW_FOLDER/" + "FILE_NAME.jpg"; Blob blob = storageClient.bucket("xxxxxx.appspot.com") .create(blobString, testFile , Bucket.BlobWriteOption.userProject("xxxxxxx")); blob.getStorage().createAcl(blob.getBlobId(), Acl.of(Acl.User.ofAllUsers(), Acl.Role.READER)); System.out.println(blob.getMedialink());} catch (Exception e){ e.printStackTrace();}
