是否有解决方案，如何仅从Firebase存储（而不是android）中获取照片的链接？

我有-

nlmsg_alloc_size()

我可以上传照片

    FileInputStream serviceaccount = new 
    FileInputStream("./serviceaccountKey.json");

    FirebaseOptions options = new FirebaseOptions.Builder()
            .setCredentials(GoogleCredentials.fromStream(serviceaccount))
            .setStorageBucket("g-app-af0af.appspot.com")
            .build();
    FirebaseApp.initializeApp(options);
            Bucket bucket = Storageclient.getInstance().
                   bucket("g-app-af0af.appspot.com");

我可以获得链接，但是它是临时的，我需要永恒的！！！

    InputStream testFile = new FileInputStream("./12.png");
    String blobString = "test_folder/" + "12.png";

    Blob blob = bucket.create(blobString,testFile,"image/png",Bucket.BlobWriteOption.userProject("g-app-af0af"));

我可以删除并下载它很好

    String bucketName = "g-app-af0af.appspot.com";
    String blobName = "test_folder/12.png";
    String keyPath = "./serviceaccountKey.json";
    URL signedUrl = blob.getStorage().signUrl(BlobInfo.newBuilder(bucketName,blobName).build(),14,TimeUnit.SECONDS,Storage.SignUrlOption.signWith(ServiceaccountCredentials.fromStream(
                    new FileInputStream(keyPath))));
    System.out.println(signedUrl);

但是我无法从存储中获得到照片的永久URL链接，嗯，原则上，作为一种选择，请指定100,000天 谢谢你的帮助

这样我就可以做到）