java测试S3列出具有特定帐户id的bucket

2 月，3 周 Questions & Answers 270

我已经创建了一个s3 bucket。我的桶里有文件。我把它作为静态网站托管。以下是我的布克特政策。每个人都应该能够查看我的文件的内容，并且只有指定的用户id才能列出bucket元素。以下是我的桶政策

 {
        "Version": "2012-10-17",
        "Statement": [
            {
                "Sid": "",
                "Effect": "Allow",
                "Principal": {
                    "AWS": "arn:aws:iam::<!-- account id without hyphen -->:root"
                },
                "Action": "s3:ListBucket",
                "Resource": "arn:aws:s3:::<!-- bucket name -->"
            },
            {
                "Sid": "AddPerm",
                "Effect": "Allow",
                "Principal": "*",
                "Action": "s3:GetObject",
                "Resource": "arn:aws:s3:::<!-- bucket name -->/*"
            }
        ]
    }

下面是我检查bucket内容列表的java程序。问题： 1）它没有列出存储桶中的文件（我已经给出了自己的访问密钥和密钥） 2）如何检查我在bucket策略中提供的特定帐户id是否有权列出bucket内容。在哪里提供帐户id和登记程序

package Cloud.AWS_CloudTest;
import java.io.IOException;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.ListObjectsRequest;
import com.amazonaws.services.s3.model.ObjectListing;
import com.amazonaws.services.s3.model.S3ObjectSummary;
public class App {

    private static String bucketName = "bucket name";
    public static void main( String[] args ) throws IOException{
              AWSCredentials basicCredentials = new BasicAWSCredentials("access key", "secret key");
                AmazonS3 s3client = new AmazonS3Client(basicCredentials);
                s3client.setRegion(Region.getRegion(Regions.US_WEST_2));
                try {
                    System.out.println("Listing objects");

                    ListObjectsRequest listObjectsRequest = new ListObjectsRequest()
                        .withBucketName(bucketName)
                        .withPrefix("m");
                    ObjectListing objectListing;            
                    do {
                        objectListing = s3client.listObjects(listObjectsRequest);
                        for (S3ObjectSummary objectSummary : 
                            objectListing.getObjectSummaries()) {
                            System.out.println(" - " + objectSummary.getKey() + "  " +
                                    "(size = " + objectSummary.getSize() + 
                                    ")");
                        }
                        listObjectsRequest.setMarker(objectListing.getNextMarker());
                    } while (objectListing.isTruncated());
                 } catch (AmazonServiceException ase) {
                    System.out.println("Caught an AmazonServiceException, " +
                            "which means your request made it " +
                            "to Amazon S3, but was rejected with an error response " +
                            "for some reason.");
                    System.out.println("Error Message:    " + ase.getMessage());
                    System.out.println("HTTP Status Code: " + ase.getStatusCode());
                    System.out.println("AWS Error Code:   " + ase.getErrorCode());
                    System.out.println("Error Type:       " + ase.getErrorType());
                    System.out.println("Request ID:       " + ase.getRequestId());
                } catch (AmazonClientException ace) {
                    System.out.println("Caught an AmazonClientException, " +
                            "which means the client encountered " +
                            "an internal error while trying to communicate" +
                            " with S3, " +
                            "such as not being able to access the network.");
                    System.out.println("Error Message: " + ace.getMessage());
                }
            }
}

请告诉我为什么它没有列出，以及如何检查我在bucket策略中给出的特定帐户id的访问权限

Python中文网

有 Java 编程相关的问题?

java测试S3列出具有特定帐户id的bucket

共 (1) 个答案

# 1 楼答案