JSch:从存储在hdfs上的私钥获取addIdentity

本文介绍了JSch:从存储在hdfs上的私钥获取addIdentity的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我需要从hadoop集群连接到sftp服务器.我想知道是否有一种方法可以从存储在hdfs中的私钥加载身份.实际上，似乎JSch对象仅接受本地路径:

I need to connect to an sftp server from an hadoop cluster. I would like to know if there is a way to load an identity from a private key stored in hdfs. Actually it seems that the JSch object accepts only a local path:

try { String privateKeyPath = "hdfs://namenode:8020/path/to/privatekey"; // need this one to be an hdfs path JSch jsch = new JSch(); jsch.addIdentity(privateKeyPath); // [..] } catch (Exception ex) { // [..] }

有什么主意吗?

推荐答案

感谢@Martin Prikryl的回答，解决方法如下:

Thanks to @Martin Prikryl answer, solved as following:

// Get sftp private/public key for JSch identity FSDataInputStream fis = fs.open(privateKeyPath); byte[] privateKeyBytes = IOUtils.toByteArray(fis); fis = fs.open(publicKeyPath); byte[] publicKeyBytes = IOUtils.toByteArray(fis); fis.close(); JSch jsch = new JSch(); String idName = "ksftp"; byte[] passphrase = null; jsch.addIdentity(idName, privateKeyBytes, publicKeyBytes, passphrase);