Imports
- git.oschina.net/cloudzone/smartgo/stgclient
- git.oschina.net/cloudzone/smartgo/stgcommon/constant
- git.oschina.net/cloudzone/smartgo/stgcommon/logger
- git.oschina.net/cloudzone/smartgo/stgcommon/statfs
- git.oschina.net/cloudzone/smartgo/stgcommon/utils
- git.oschina.net/cloudzone/smartgo/stgcommon/utils/fileutil
- github.com/pquerna/ffjson/ffjson