问题
I'm currently building a Java application which will connect to a switch using Telnet or SSH. I'm currently using the JSch for the SSH connection, but I read in Stack Overflow question SSH and Telnet library for java that JSch also supports Telnet.
Is this correct? And if so, could some one provide a small example?
回答1:
The JSch is an SSH library.
Quoting the JSch web page:
JSch is a pure Java implementation of SSH2.
No mention on Telnet.
Also, there's no mention of the "telnet" or "23" in the JSch source code.
The only classes that connect anywhere (= use Socket Java class) are Session (SSH), Proxy* and ChannelForwardedTCPIP (port forwarding) and ChannelX11.
来源：https://stackoverflow.com/questions/35558374/telnet-support-in-jsch