UserInfo传递的是，单击以起作用

我们使用以下代码：

try {    session = jsch.getSession(user, host, port);}catch (JSchException e) {    throw new TransferException("Failed to open session - " + params, e);}session.setPassword(password);//  Create UserInfo instance in order to support SFTP connection to any machine //  without a key username and password will be given via UserInfo interface.UserInfo userInfo = new SftpUserInfo();session.setUserInfo(userInfo);try {    session.connect(connectTimeout);}catch (JSchException e) {    throw new TransferException("Failed to connect to session - " + params, e);}boolean isSessionConnected = session.isConnected();

最重要的是：

class SftpUserInfo implements UserInfo {    String password = null;    @Override    public String getPassphrase() {        return null;    }    @Override    public String getPassword() {        return password;    }    public void setPassword(String passwd) {        password = passwd;    }    @Override    public boolean promptPassphrase(String message) {        return false;    }    @Override    public boolean promptPassword(String message) {        return false;    }    @Override    public boolean promptYesNo(String message) {        return true;    }    @Override    public void showMessage(String message) {    }}