Google云存储Java XML API文件上载并将上载的文件标记为公共

Question

我使用Google Cloud存储JavaXML API将文件从客户端上传到Google Cloud Bucket，文件正在成功上传，但我希望上传的文件可以公开访问（希望文件具有公共-读取权限），如何在上传的文件上设置公共读取ACL，从而使其公开访问。这是我用过的密码

httpTransport = GoogleNetHttpTransport.newTrustedTransport();


String p12Content = Files.readFirstLine(new File("key.p12"), Charset.defaultCharset());
            Preconditions.checkArgument(!p12Content.startsWith("Please"), p12Content);
            //[START snippet]
            // Build a service account credential.
Path path = Paths.get(MyFilePath);
    byte[] byteArray = java.nio.file.Files.readAllBytes(path);
HttpContent contentsend = new ByteArrayContent("text/plain", byteArray );

GoogleCredential credential = new GoogleCredential.Builder().setTransport(httpTransport)
                .setJsonFactory(JSON_FACTORY)
                .setServiceAccountId(SERVICE_ACCOUNT_EMAIL)
                .setServiceAccountScopes(Collections.singleton(STORAGE_SCOPE))
                .setServiceAccountPrivateKeyFromP12File(new File("key.p12"))

                .build();
            // Set up and execute a Google Cloud Storage request.
String URI = "https://storage.googleapis.com/" + BUCKET_NAME + "/myfile";
HttpRequestFactory requestFactory = httpTransport.createRequestFactory(credential);
GenericUrl url = new GenericUrl(URI);
HttpRequest request = requestFactory.buildPutRequest(url,contentsend);
HttpResponse response = request.execute();

Answer 1

包括一个"x-goog-acl"标头，其值为"Public-read"，如下所示：

request.setHeader("x-goog-acl", "public-read");

更多信息，您可以查看这些留档页面：

https://cloud.google.com/storage/docs/reference-headers#xgoogacl https://cloud.google.com/storage/docs/access-control