使用AWS SDK将文件上载到S3

Question

我正在尝试使用AWS SDK将文件上传到Amazon S3存储桶.

class LogToS3Bucket extends Thread{

    public void run() {
        super.run();
        Gdx.app.log("msg", "secondThreadRunning yeahhhhh!");
        File fileToPut = new File("../../../MyProject", "settings.txt");
        String accessKey = "<accessKey>";
        String secretKey = "<secretKey>";
        AWSCredentials credentials = new BasicAWSCredentials(accessKey, secretKey);
        AmazonS3 conn = new AmazonS3Client(credentials);

        conn.putObject("bucketname", "filename.txt", fileToPut);
    }

}

它不起作用,它会在调用.putObject()时抛出错误

Exception in thread "Thread-1" Status Code: 400, AWS Service: Amazon S3, AWS Error Code: BadDigest, AWS Error Message: The Content-MD5 you specified did not match what we received.
    at com.amazonaws.http.AmazonHttpClient.handleErrorResponse(AmazonHttpClient.java:614)
    at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:312)
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:165)
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:2951)
    at com.amazonaws.services.s3.AmazonS3Client.putObject(AmazonS3Client.java:1123)
    at com.amazonaws.services.s3.AmazonS3Client.putObject(AmazonS3Client.java:979)
    at com.myproject.LogToS3Bucket.run(LogToS3Bucket.java:22)

Answer 1

我认为 - 我认为 - 由于我的应用程序不断编辑该文件并且此片段发生在一个单独的线程中,因此该文件在上传之前实际已更改...如果我制作文件的临时副本并将其上传到斗,它的工作原理.