Ruby net/sftp远程读取文件并保存到数据库，获取错误状态异常（4，“故障”）

我正在尝试从远程sftp站点下载XML，将文件内容读入REXML，并将数据保存到数据库中。到目前为止，代码可以读取文件，f.gets行失败，出现错误：

/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:846:in `wait_for': Net::SFTP::StatusException (4, "failure") (Net::SFTP::StatusException)
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:257:in `read!'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file.rb:162:in `fill'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file.rb:100:in `block in gets'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file.rb:93:in `loop'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file.rb:93:in `gets'
        from ./test.rb:10:in `block (3 levels) in <main>'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file_factory.rb:45:in `open'
        from ./test.rb:9:in `block (2 levels) in <main>'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/dir.rb:33:in `block in foreach'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/dir.rb:33:in `each'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/dir.rb:33:in `foreach'
        from ./test.rb:8:in `block in <main>'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:939:in `call'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:939:in `block in do_version'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:939:in `each'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:939:in `do_version'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:909:in `when_channel_polled'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/channel.rb:311:in `call'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/channel.rb:311:in `process'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:214:in `block in preprocess'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:214:in `each'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:214:in `preprocess'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:197:in `process'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:161:in `block in loop'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:161:in `loop'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:161:in `loop'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:802:in `loop'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:787:in `connect!'
        from /usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp.rb:32:in `start'
        from ./test.rb:7:in `<main>'

/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:846:in'wait_for'：net:：sftp:：StatusException（4，“失败”）（net:：sftp:：StatusException）
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:257:in'read！'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file.rb:162:填写'fill'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file.rb:100:in'block in get'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file.rb:93:in'loop'
来自/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file.rb:93:in`gets'
from./test.rb:10:in‘block（3层）in’
来自/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/file_factory.rb:45:在“打开”中
from./test.rb:9:in`block（2层）in'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/dir.rb:33:in'block in foreach'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/dir.rb:33:在'each'中
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/operations/dir.rb:33:in'foreach'
from./test.rb:8:in'block in'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:939:in'call'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:939:in“do_版本中的块”
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:939:in'each'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:939:in'do_version'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:909:in“when_channel_poll”
来自/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/channel.rb:311:in'call'
来自/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/channel.rb:311:在“进程”中
from/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:214:在“预处理中的块”中
from/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:214:在'each'中
from/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:214:在“预处理”中
来自/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:197:在“进程”中
from/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:161:in“block-in-loop”
from/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:161:in'loop'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-ssh-2.5.2/lib/net/ssh/connection/session.rb:161:in'loop'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:802:in'loop'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:787:in'connect！'
from/usr/local/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp.rb:32:in'start'
from./test.rb:7:in`'

这是我的密码：

#!/usr/bin/ruby

require 'rubygems'
require 'net/sftp'
require 'rexml/document'

Net::SFTP.start('some.example.host','myuser',:password => 'fake') do |sftp|
    sftp.dir.foreach("/path/to/mydir/") do |xml|
        sftp.file.open("/path/to/mydir/"+xml.name) do |f|
            puts f.gets # < THIS BREAKS IT
        end
    end  
end

#/usr/bin/ruby
需要“rubygems”
需要“净/sftp”
需要“rexml/文档”
Net:：SFTP.start（'some.example.host'，'myuser'，：password=>'fake'）do | SFTP|
sftp.dir.foreach（“/path/to/mydir/”）do|xml|
打开（“/path/to/mydir/”+xml.name）do | f|
这就打破了它
结束
结束
结束

代码是脏的，现在是一个测试。我希望读取远程目录中的所有文件，并打印每个文件的第一行

---

谢谢你的帮助

我想你想要的是：

sftp.download!("/path/to/remote", "/path/to/local")

还是这个

 data = sftp.download!("/path/to/remote")

---

从文档中得到了以下信息：

我在尝试访问SFTP用户无权访问的文件时收到了类似的错误

Net::SFTP::StatusException: Net::SFTP::StatusException
    from /usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:846:in `wait_for'
    from /usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:561:in `stat!'
    from (irb):80
    from /usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands/console.rb:47:in `start'
    from /usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands/console.rb:8:in `start'
    from /usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:41:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

Net:：SFTP:：StatusException:Net:：SFTP:：StatusException
from/usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:846:“等待”
from/usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/net-sftp-2.0.5/lib/net/sftp/session.rb:561:in'stat！'
起始（irb）：80
来自/usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands/console.rb:47:在“开始”中
来自/usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands/console.rb:8:在“开始”中
来自/usr/local/rbenv/versions/1.9.3-p374/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/commands.rb:41:in`'
来自脚本/rails:6:in'require'
来自脚本/rails:6:in`'

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