我试图在Perl中使用Amazon::S3
模块从s3获取文件。我能够成功下载没有前缀的文件,但无法获取像test/abc.txt
这样的前缀文件。
我使用下面的代码。
sub export_bucket {
my ($conn, $bucket, $directory) = @_;
$bucket = $conn->bucket($bucket);
my $response = $bucket->list();
print $response->{bucket}."n";
for my $key (@{ $response->{keys} }) {
print "t".$key->{key}."n";
_export_file($conn,$bucket,$key->{key}, $directory.'/'.$key->{key});
}
}
sub _export_file {
my ($conn,$bucket,$name,$path) = @_;
print "Downloading $name file","n";
my $test = $bucket->get_key_filename($name,'GET',$path);
print Dumper($test);
my $acl = $bucket->get_acl($name);
print Dumper($acl);
open my $acl_file, '>', $path.'.acl';
print $acl_file $acl;
close $acl_file;
}
建议我应该做什么改变,这样当一个前缀/文件夹来的时候,我应该能够下载这个文件夹。
谢谢
如果目标目录不存在,则需要修改代码以在本地文件系统上创建目标目录。它应该看起来像这样:
use File::Path qw[make_path];
sub export_bucket {
my ( $conn, $bucket, $directory ) = @_;
$bucket = $conn->bucket($bucket);
my $response = $bucket->list();
print $response->{bucket} . "n";
for my $key ( @{ $response->{keys} } ) {
print "t" . $key->{key} . "n";
_export_file( $conn, $bucket, $key->{key}, $directory . '/' . $key->{key} );
}
}
sub _export_file {
my ( $conn, $bucket, $name, $path ) = @_;
print "Downloading $name file", "n";
my $test = $bucket->get_key_filename( $name, 'GET', $path );
print Dumper($test);
my $acl = $bucket->get_acl($name);
print Dumper($acl);
## get path directory part
my ($dir_part) = $path =~ /(.+)/[^/]+$/;
unless ( -d $dir_part ) {
make_path($dir_part);
}
open my $acl_file, '>', $path . '.acl';
print $acl_file $acl;
close $acl_file;
}
也许$directory已经在失败的情况下尾随"/"(或$key->{key}有前面的斜杠)?试着调试打印代码中的$directory和$path,看看你的字符串参数到底是什么。