Question

所以我试图将文件上传到s3存储桶中以供亚马逊使用。但是，我需要一个HTTP网址。你们知道我这样做的方式吗？我现在正在使用nodejs，我只能获得签名的URL。任何帮助将不胜感激。

Answer 1

为此必须使用GeneratePresignedUrlRequest课程。

public static String writeToS3(File file, String folder) {
    com.amazonaws.services.s3.AmazonS3 s3Client = new com.amazonaws.services.s3.AmazonS3Client(
            getAWSCredentials());
    String key = file.getName();
    System.out.println("Going to write to key " + folder + key + " in S3");
    s3Client.putObject(BUCKET, folder + key, file);

    // This generates a URL that can be used to download the uploaded file.
    Date expiration = new Date();
    long msec = expiration.getTime();
    msec += S3_URL_VALIDITY_PERIOD_MILLISEC;
    expiration.setTime(msec);
    GeneratePresignedUrlRequest generatePresignedUrlRequest = new GeneratePresignedUrlRequest(
            BUCKET, folder + key);
    generatePresignedUrlRequest.setMethod(HttpMethod.GET);
    generatePresignedUrlRequest.setExpiration(expiration);
    URL s = s3Client.generatePresignedUrl(generatePresignedUrlRequest);
    if (s == null) {
        System.out.println("Url returned was null");
        return null;
    }
    System.out.println("S3 Url: " + s.toString());
    return s.toString();
}

可在此处找到完整的Java代码：http://design-interviews.blogspot.in/2015/07/java-code-to-read-and-write-objects-in-AWS-S3.html

如何在亚马逊s3中获取项目的HTTP URL

1 个答案: