无法在带有java sdk的aws s3上使用预先签名的url上载

我收到一个预先签名的URL，要上传到S3。当我上传下面的代码时，我得到了403状态响应。我尝试在web控制台上将bucket策略设置为public，但这并没有解决问题。关于如何解决这个问题还有其他见解吗？我还尝试将ACL添加到PublicREADWRITE

HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setDoOutput(true);
    connection.setRequestMethod("PUT");

    OutputStream out = connection.getOutputStream();

   // OutputStreamWriter out = new OutputStreamWriter(connection.getOutputStream());
    //out.write("This text uploaded as an object via presigned URL.");


    byte[] boundaryBytes = Files.readAllBytes(Paths.get(edmFile));
    out.write(boundaryBytes);
    out.close();

    // Check the HTTP response code. To complete the upload and make the object available,
    // you must interact with the connection object in some way.
    int responseCode = connection.getResponseCode();
    System.out.println("HTTP response code: " + responseCode);

预先签署的网址：

  private URL getUrl(String bucketName, String objectKey) {

        String clientRegion = "us-east-1";
        java.util.Date expiration = new java.util.Date();
        long expTimeMillis = expiration.getTime();
        expTimeMillis += 1000 * 60 * 10;
        expiration.setTime(expTimeMillis);

        AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
                .withCredentials(new ProfileCredentialsProvider())
                .withRegion(clientRegion)
                .build();
        GeneratePresignedUrlRequest generatePresignedUrlRequest =
                new GeneratePresignedUrlRequest(bucketName, objectKey)
                        .withMethod(HttpMethod.GET)
                        .withExpiration(expiration);
        URL url = s3Client.generatePresignedUrl(generatePresignedUrlRequest);

        System.out.println("Pre-Signed URL: " + url.toString());
        return url;
    }

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如前所述，签名的Url应该与您接下来要做的事情完全匹配

您的预签名Url是通过

GET

操作创建的，这就是为什么上载

PUT

操作失败并出现访问被拒绝错误的原因

尝试更新要放置的withMethod

GeneratePresignedUrlRequest generatePresignedUrlRequest =
                new GeneratePresignedUrlRequest(bucketName, objectKey)
                        .withMethod(HttpMethod.PUT)
                        .withExpiration(expiration);

---

添加用于生成预签名url的代码。已添加@cementblocks@alihaider您的预签名Url是使用

.withMethod（HttpMethod.GET）

创建的，您正在尝试执行PUT上载操作。这就是原因吗？。我想它们必须是同步的。@Imran如果你加上它作为答案，我会接受它-谢谢