java 里面的开源 ssh lib

jsch 例子

JSch jSch = new JSch();

//设置JSch 的日志，可以看到具体日志信息

JSch.setLogger(new Logger() {

@Override

public boolean isEnabled(int level) {

return true;

}

@Override

public void log(int level, String message) {

System.out.println("logger:" + message);

}

});

com.jcraft.jsch.Session session = jSch.getSession("king", "127.0.0.1");

session.setPassword("123456");

//忽略hostkey 检查

session.setConfig("StrictHostKeyChecking", "no");

//设置需要kerbores 验证 键盘交互 忽略

session.setConfig("PreferredAuthentications", "publickey,keyboard-interactive,password");

session.connect(60000);

//开启shell，shell 具有上下文交互，执行命令不会马上退出

ChannelShell shell = (ChannelShell) session.openChannel("shell");

//开始 exec 类似linux bash -c exec 执行完命令马上退出

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

//exec.setCommand("");

shell.setPtyType("dumb");

shell.setPty(true);

shell.connect(60000);

boolean connected = shell.isConnected();

OutputStream outputStream = shell.getOutputStream();

InputStream inputStream = shell.getInputStream();

BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "utf-8"));

//通过流写入命令

outputStream.write("pwd\n cd /home\nls\npwd\n".getBytes());

outputStream.flush();

String line;

while ((line = bufferedReader.readLine()) != null) {

System.out.println(line);

}

sshj 例子

DefaultConfig defaultConfig = new DefaultConfig();

final SSHClient client = new SSHClient(defaultConfig);

String host = "127.0.0.1";

String user = "king";

String password = "123456";

client.setTimeout(60000);

client.loadKnownHosts();

client.addHostKeyVerifier(new PromiscuousVerifier());

client.connect(host);

try {

client.authPassword(user, password);

final SessionChannel session = (SessionChannel) client.startSession();

session.allocateDefaultPTY();

//这里的session 类似 jsch 里面的exec ，可以直接执行命令。

//session.exec("pwd");

SessionChannel shell = (SessionChannel) session.startShell();

try {

OutputStream outputStream = shell.getOutputStream();

outputStream.write("pwd\n".getBytes());

outputStream.flush();

BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(shell.getInputStream(), "utf-8"));

String line;

while ((line = bufferedReader.readLine()) != null) {

System.out.println(line);

}

} catch (InterruptedException e) {

e.printStackTrace();

}

} finally {

client.disconnect();

}