Google Cloud Storage - How to access folders and files like static resources inside bucket

I want to use Google Cloud Storage for all static resources - images etc

The example is injecting 1 file, but I want to access many files - given a name

@Value("gs://${gcs-resource-test-bucket}/hello.txt")
private Resource gcsFile;

I am also not interested in iterating - as I have folders inside bucket, and dont want to iterqate all 100 files or so everytime

Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
Page<Blob> blobs = storage.list(bucketName);

for (Blob blob : blobs.iterateAll()) {
  System.out.println(blob.getName());
}

Is there a way to access files like gs://somestringfilename ?

Don't know how to use this property to get access to files

You can also serve static resources by reading them from a bucket.
 spring.web.resources.static-locations=gs://p*

Assume that I have a rest controller to supply a file name, how can I get file from cloud storage?

CodePudding user response：

Based on the given statement, You are trying to read or access files from Google Cloud Storage using Java as your language.

For your case, this should work:

BlobId blobId = BlobId.of(bucketName, blobName);
Blob blob = storage.get(blobId);
String fileContent = new String(blob.getContent());
System.out.println(fileContent);

For further documentation of Class Blob, You may refer here.

You could also have a look into this Cloud Storage Client Libraries for more detail.

CodePudding user response：

I resolved this using bean

StorageOptions.newBuilder().setProjectId(projectId).build().getService();

a function

private Page folder(String directoryPrefix) {

Page<Blob> blobs =
        storage().list(
            bucketName,
            Storage.BlobListOption.prefix(directoryPrefix));

return blobs;

}

Usage: directotyPrefix is not just my folder, but also sticking file name

myfolder/ filenamewithext