Question

这是场景。有一个使用者，它使用kafka队列中的文件名并将这些文件上载到S3。

在使用者和上载者之间，有一个使用固定大小为10的阻塞队列的线程池执行程序。使用者使用文件名，并将实现Runnable的上载任务提交给线程池执行程序。

>

UploaderTask.java

...
@Override
public void run() {
    try {
        System.out.println("Uploading...");
        Uploader uploader = new Uploader();
        uploader.uploadFile("/home/user/a.txt");
        System.out.println("Uploaded");
    } catch(...) {
        ...
    } finally {
        System.out.println("Clean up task");
    }
}
...

Uploader.java

public class Uploader {
    void upload(String fileName) {
        AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                .withRegion(Regions.US_WEST_2)
                .withCredentials(new ProfileCredentialsProvider())
                .build();
        PutObjectRequest putObjectRequest = new 
        PutObjectRequest(BUCKET_NAME, "key.txt", new File(fileName));
        PutObjectResult putObjectResult = s3Client.putObject(putObjectRequest);
        System.out.println("Upload done. Returning");
    }
}

输出：

Uploading...
Clean up task

s3.putobject（...）之后的行似乎未在执行，并且在uploader.uploadFile（...）之后的代码也未在执行

Main.java

public class Main {
    try {
        System.out.println("Uploading...");
        Uploader uploader = new Uploader();
        uploader.uploadFile("/home/user/a.txt");
        System.out.println("Uploaded");
    } catch(...) {
        ...
    } finally {
        System.out.println("Clean up task");
    }
}

输出：

Uploading...
Upload done. Returning
Uploaded
Clean up task

非常感谢您的帮助。

线程内的AWS S3文件上传未完成

0 个答案: