java - spring boot云存储文件上传

Question

从 spring boot Controller 上传文件到谷歌云存储。请给我一个代码。

到目前为止我想出了这样的代码

@RequestMapping(value = "/uploadFile", method = RequestMethod.POST)
@SuppressWarnings("deprecation")
public String uploadFile( @RequestParam("files")  Part filePart ) throws IOException {

    private static Storage storage = null;

    final String bucketName = "mcqimages";
    DateTimeFormatter dtf = DateTimeFormat.forPattern("-YYYY-MM-dd-HHmmssSSS");
    DateTime dt = DateTime.now(DateTimeZone.UTC);
    String dtString = dt.toString(dtf);
    String fileName = "C:\\Users\\sachinthah\\Downloads\\821092.png";
    fileName = filePart.getSubmittedFileName() + dtString;

    // the inputstream is closed by default, so we don't need to close it here
    BlobInfo blobInfo =
            storage.create(
                    BlobInfo
                            .newBuilder(bucketName, fileName)
                            // Modify access list to allow all users with link to read file
                            .setAcl(new ArrayList<>(Arrays.asList(Acl.of(User.ofAllUsers(), Role.READER))))
                            .build(),
                    filePart.getInputStream());

    return blobInfo.getMediaLink();
}

Answer 1

有两个很好的来源，您可以从中获得有关将文件上传到谷歌云存储的指导，第一个是官方 GCP 指南使用 Java 云存储[1]，第二个是谷歌云存储简介[2 ], 他们会一步步带你，并为你提供存档任务所需的代码。

[1] https://cloud.google.com/java/getting-started/using-cloud-storage[2] https://www.baeldung.com/java-google-cloud-storage