The Secure File Transfer Protocol (SFTP) is a network protocol which allows you to transfer files between two computers on the Internet over any reliable stream.
Spring Integration provides support for file transfer operations via SFTP.
The SFTP protocol requires a secure channel, such as SSH, as well as visibility to a client’s identity throughout the SFTP session.
Spring Integration supports sending and receiving files over SFTP by providing three client side endpoints: Inbound Channel Adapter, Outbound Channel Adapter, and Outbound Gateway It also provides convenient namespace configuration to define these client components.
xmlns:int-sftp="http://www.springframework.org/schema/integration/sftp"
xsi:schemaLocation="http://www.springframework.org/schema/integration/sftp
http://www.springframework.org/schema/integration/sftp/spring-integration-sftp.xsd"
for more, please look through spring official SFTP page
