我正在尝试使用Jcraft Jsch库通过Java应用程序管理路由器.

我正在尝试通过TFTP服务器发送Router Config.问题出在我的Java代码中,因为这适用于PuTTY.

这是我的Java代码：

int port=22;
String name ="R1";
String ip ="192.168.18.100";
String password ="root";

JSch jsch = new JSch();
Session session = jsch.getSession(name, ip, port);
session.setPassword(password);
session.setConfig("StrictHostKeyChecking", "no");
System.out.println("Establishing Connection...");
session.connect();
System.out.println("Connection established.");

ChannelExec channelExec = (ChannelExec)session.openChannel("exec");

InputStream in = channelExec.getInputStream();
channelExec.setCommand("enable");

channelExec.setCommand("copy run tftp : ");
//Setting the ip of TFTP server 
channelExec.setCommand("192.168.50.1 : ");
// Setting the name of file
channelExec.setCommand("Config.txt ");

channelExec.connect();

BufferedReader reader = new BufferedReader(new InputStreamReader(in));
String line;
int index = 0;
StringBuilder sb = new StringBuilder();
while ((line = reader.readLine()) != null)
{
    System.out.println(line);
}
session.disconnect();

我明白了

Line has an invalid autocommand ‘192.168.50.1’

问题是如何运行这些连续的命令.

解决方法:

多次调用ChannelExec.setCommand无效.

即使它有,我猜测192.168.50.1：和Config.txt不是命令,但是复制运行tftp：命令的输入不是吗？

如果是这种情况,则需要将它们写入命令输入.

像这样的东西：

ChannelExec channel = (ChannelExec) session.openChannel("exec");
channelExec.setCommand("copy run tftp : ");
OutputStream out = channelExec.getOutputStream();
channelExec.connect();
out.write(("192.168.50.1 : \n").getBytes());
out.write(("Config.txt \n").getBytes());
out.flush();