Amazon S3：`key`是要上傳到存儲桶而不是文件的對象

Question

請檢查以下代碼

import java.io.File;
import java.io.IOException;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.auth.AWSStaticCredentialsProvider;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.PutObjectRequest;

public class UploadObjectSingleOperation {
    private static String bucketName     = "*******";
    private static String keyName        = "************";
    private static String uploadFileName = "C:/Users/Yohan/Desktop/asdasd.html";

    public static void main(String[] args) throws IOException {
        BasicAWSCredentials creds = new BasicAWSCredentials(keyName, "**********"); 
        AmazonS3 s3client = AmazonS3ClientBuilder.standard().withCredentials(new AWSStaticCredentialsProvider(creds)).withRegion(Regions.AP_SOUTH_1).build();
//            AmazonS3 s3client = new AmazonS3Client(new ProfileCredentialsProvider());
        try {
            System.out.println("Uploading a new object to S3 from a file\n");
            File file = new File(uploadFileName);

            s3client.putObject(new PutObjectRequest(
                                     bucketName, keyName, file));

         } 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());
        }
    }
}

確定，因此上面的代碼已用於將文件上傳到Amazon S3 Bucket。 我的S3鏟斗距離我的客戶Asia Pacific - Mumbai最近。

上面的代碼工作正常，但是我注意到了以下內容。

1. 上傳的內容始終是key 。 實際文件未上傳。 請檢查下圖。

為什么會這樣呢？ 當我使用S3的Web界面上傳文件時，它可以正常工作。

Answer 1

發現錯誤。 我的問題中的代碼來自Amazon教程-http: //docs.aws.amazon.com/AmazonS3/latest/dev/UploadObjSingleOpJava.html

但是，我確定它是不正確或已棄用的。

注意以下行

s3client.putObject(new PutObjectRequest(bucketName, keyName, file));

為此，您必須傳遞帶有擴展名的文件名而不是keyName 。 例如， websitepage.html 。