使用java中的deleteObjects从aws s3删除文件，成功删除但文件没有被删除

Question

我使用下面的代码从s3删除多个文件

AWSCredentials credentials = new BasicAWSCredentials(key, S3secretKey);
    AmazonS3 s3client = new AmazonS3Client(credentials);        
    String[] fileNames = files.split(",");
    if(fileNames.length==1)     
    s3client.deleteObject(bucketName+path, files);
    else{
    List<KeyVersion> keys = new ArrayList<KeyVersion>();
    for(int i =0 ; i< fileNames.length ; i++){
        keys.add(new KeyVersion(fileNames[i]));   
    }
     DeleteObjectsRequest multiObjectDeleteRequest = new DeleteObjectsRequest(bucketName+path);
     multiObjectDeleteRequest.setKeys(keys);
     DeleteObjectsResult  delObjRes = s3client.deleteObjects(multiObjectDeleteRequest);
     System.out.format("Successfully deleted all the %s items.\n", delObjRes.getDeletedObjects().size());

    }       

显示已成功删除但文件未从s3中删除

对于单个文件代码s3client.deleteObject(bucketName, file);工作正常。