import com.trilead.ssh2.packets.PacketUserauthRequestPassword; //导入依赖的package包/类
public boolean authenticatePassword(String user, String pass) throws IOException
{
	try
	{
		initialize(user);

		if (methodPossible("password") == false)
			throw new IOException("Authentication method password not supported by the server at this stage.");

		PacketUserauthRequestPassword ua = new PacketUserauthRequestPassword("ssh-connection", user, pass);
		tm.sendMessage(ua.getPayload());

		byte[] ar = getNextMessage();

		if (ar[0] == Packets.SSH_MSG_USERAUTH_SUCCESS)
		{
			authenticated = true;
			tm.removeMessageHandler(this, 0, 255);
			return true;
		}

		if (ar[0] == Packets.SSH_MSG_USERAUTH_FAILURE)
		{
			PacketUserauthFailure puf = new PacketUserauthFailure(ar, 0, ar.length);

			remainingMethods = puf.getAuthThatCanContinue();
			isPartialSuccess = puf.isPartialSuccess();

			return false;
		}

		throw new IOException("Unexpected SSH message (type " + ar[0] + ")");

	}
	catch (IOException e)
	{
		tm.close(e, false);
		throw (IOException) new IOException("Password authentication failed.").initCause(e);
	}
}
 

import com.trilead.ssh2.packets.PacketUserauthRequestPassword; //导入依赖的package包/类
public boolean authenticatePassword(String user, String pass)
		throws IOException {
	try {
		initialize(user);

		if (methodPossible("password") == false)
			throw new IOException(
					"Authentication method password not supported by the server at this stage.");

		PacketUserauthRequestPassword ua = new PacketUserauthRequestPassword(
				"ssh-connection", user, pass);
		tm.sendMessage(ua.getPayload());

		byte[] ar = getNextMessage();

		if (ar[0] == Packets.SSH_MSG_USERAUTH_SUCCESS) {
			authenticated = true;
			tm.removeMessageHandler(this, 0, 255);
			return true;
		}

		if (ar[0] == Packets.SSH_MSG_USERAUTH_FAILURE) {
			PacketUserauthFailure puf = new PacketUserauthFailure(ar, 0,
					ar.length);

			remainingMethods = puf.getAuthThatCanContinue();
			isPartialSuccess = puf.isPartialSuccess();

			return false;
		}

		throw new IOException("Unexpected SSH message (type " + ar[0] + ")");

	} catch (IOException e) {
		tm.close(e, false);
		throw (IOException) new IOException(
				"Password authentication failed.").initCause(e);
	}
}