如何在JSch中使用id_rsa.pub文件

我使用JSch（）连接远程SFTP服务器时遇到问题 . 除了 id_rsa.pub 文件和 hostname 以及 host_ip_address 之外，我没有任何关于要连接的远程服务器的访问权限或信息 . 并且该文件中的密钥在远程服务器中注册为授权密钥 . 因为我能够从shell登录到远程服务器 .

sftp -o BindAddress=SOME_IP_ADDRRESS myUserName@HOST_IP_ADDR

它的工作正常 . 但是，当我尝试使用JSch时，它不起作用 . 我所做的是：

• 我使用ssh keygen从id_rsa.pub文件中的公钥创建了一个私钥 .

• 公钥格式是

ssh-rsa AA.... == someuser@something.com

• 我从keygen生成的私钥就像

-----开始RSA私钥-----

KIOPU.....

----- END RSA私钥-----

我正在使用这个私钥文件 session.addIdentity(private_key_file_path);

但是它给了auth_failure异常，我做错了什么

代码是：

/* KEY_FILE_NAME = is a file with rsa public key */
ClassLoader classLoader = getClass().getClassLoader();
File file = new File(classLoader.getResource(KEY_FILE_NAME).getFile());
JSch jsch = new JSch();
jsch.addIdentity(file.getAbsolutePath());
Properties hash = new Properties();
hash.put("StrictHostKeyChecking", "no");
logger.debug("SSh Server Host name >>" + SSH_SERVER_HOST_NAME + " || User Name >>" +  SSH_SERVER_USER_NAME);

session = jsch.getSession(SSH_SERVER_USER_NAME, SSH_SERVER_HOST_NAME);
UserInfo ui = new MyUserInfo();
session.setUserInfo(ui);
session.setConfig(hash);
session.setPort(22);
session.setTimeout(45000);
session.setSocketFactory(new SocketFactory() 
{
    InputStream in = null;
    OutputStream out = null;

    public InputStream getInputStream(Socket socket) throws IOException 
    {
        if (in == null)
            in = socket.getInputStream();
        return in;
    }

    public OutputStream getOutputStream(Socket socket) throws IOException 
    {
        if (out == null)
            out = socket.getOutputStream();
        return out;
    }

    public Socket createSocket(String host, int port) throws IOException, UnknownHostException 
    {
       // The IP Addresses are changed ....
       // using the original IP in my code
        byte[] remoteIpAddr = new byte[] { (byte) 11,(byte) 11, 11, 11 }; 
        byte[] localIpAddr = new byte[] { 55, 55, 55, 55 };

        InetAddress remoteIp = InetAddress.getByAddress(remoteIpAddr);
        InetAddress localIp = InetAddress.getByAddress(localIpAddr);

        logger.debug("remoteIp >>" + remoteIp.toString());
        logger.debug("localIp >>" + localIp.toString());
        Socket socket = new Socket(remoteIp, 22, localIp, 0);
        logger.debug("socket created >> " + socket.toString());
        return socket;
    }
});
session.connect();

请帮忙，我做错了什么......