Попробуйте использовать ChannelShell
, открыв shell
вместо exec
.
Ниже приведен небольшой пример кода для входа в систему и выполнения файла для удаленного Java-класса.
private Expect4j SSH(String hostname, String username,String password, int port) throws Exception {
JSch jsch = new JSch();
Session session = jsch.getSession(username, hostname, port);
if (password != null) {
session.setPassword(password);
}
Hashtable<String,String> config = new Hashtable<String,String>();
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);
session.connect(60000);
channel = (ChannelShell) session.openChannel("shell");
Expect4j expect = new Expect4j(channel.getInputStream(), channel.getOutputStream());
channel.connect();
return expect;
}
Этот метод откроет поток SSH на удаленный сервер, который будет использоваться оператором wait4j для отправки команд.
private boolean executeCommands() {
boolean isSuccess = true;
Closure closure = new Closure() {
public void run(ExpectState expectState) throws Exception {
buffer.append(expectState.getBuffer());//buffer is string buffer for appending output of executed command
expectState.exp_continue();
}
};
List<Match> lstPattern = new ArrayList<Match>();
String[] regEx = SSHConstants.linuxPromptRegEx;
if (regEx != null && regEx.length > 0) {
synchronized (regEx) {
for (String regexElement : regEx) {//list of regx like, :>, /> etc. it is possible command prompts of your remote machine
try {
RegExpMatch mat = new RegExpMatch(regexElement, closure);
lstPattern.add(mat);
} catch (MalformedPatternException e) {
return false;
} catch(Exception e) {
return false;
}
}
lstPattern.add(new EofMatch( new Closure() { // should cause entire page to be collected
public void run(ExpectState state) {
}
}));
lstPattern.add(new TimeoutMatch(defaultTimeOut, new Closure() {
public void run(ExpectState state) {
}
}));
}
}
try {
Expect4j expect = SSH(objConfig.getHostAddress(), objConfig.getUserName(), objConfig.getPassword(), SSHConstants.SSH_PORT);
expect.setDefaultTimeout(defaultTimeOut);
if(isSuccess) {
for(String strCmd : lstCmds)
isSuccess = isSuccess(lstPattern,strCmd);
}
boolean isFailed = checkResult(expect.expect(lstPattern));
return !isFailed;
} catch (Exception ex) {
return false;
} finally {
closeConnection();
}
}
private boolean isSuccess(List<Match> objPattern,String strCommandPattern) {
try {
boolean isFailed = checkResult(expect.expect(objPattern));
if (!isFailed) {
expect.send(strCommandPattern);
expect.send("\r");
return true;
}
return false;
} catch (MalformedPatternException ex) {
return false;
} catch (Exception ex) {
return false;
}
}
private boolean checkResult(int intRetVal) {
if (intRetVal == SSHConstants.COMMAND_EXECUTION_SUCCESS_OPCODE) {
return true;
}
return false;
}
public static final int COMMAND_EXECUTION_SUCCESS_OPCODE = -2;
public static final String BACKSLASH_R = "\r";
public static final String BACKSLASH_N = "\n";
public static final String COLON_CHAR = ":";
public static String ENTER_CHARACTER = BACKSLASH_R;
public static final int SSH_PORT = 22;
public static String[] linuxPromptRegEx = new String[]{"~]#","~#","#",":~#","/$",}