JSchKeyExample.java•3.22 kB
package com.gengzi;
import com.jcraft.jsch.*;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class JSchKeyExample {
public static void main(String[] args) {
JSch jsch = new JSch();
String privateKeyContent = "-----BEGIN OPENSSH PRIVATE KEY-----\n" +
"b3BlbnNzaC1rZXktdjEAAAAACmFlczI1Ni1jdHIAAAAGYmNyeXB0AAAAGAAAABDCdlbvrv\n" +
"BFX2LVDcoH04ByAAAAGAAAAAEAAAAzAAAAC3NzaC1lZDI1NTE5AAAAIFPRyMryyR92LU4e\n" +
"3t5lc+wv6+f+ssPfj2fQ9TzVBQyGAAAAoPtOGKfPm6iyL4jvDqSfBnUYnJgwsLbM6v9+r9\n" +
"C5FQl197rO9nPx6mYN4lg5thcjW3DOhRu8iGoa1tYBymsEmxHA2cNQt6uAdsDpAEAV2amw\n" +
"O02oHKG67eYs2TI2VALHh8zYtbVSOx2ApUMfHuoKtgeF93huJ/HA3jjxHNO538wIvqyrAu\n" +
"NynwGONXxLu7oQrjyir2cB4UwRjN86sJDqQ7Y=\n" +
"-----END OPENSSH PRIVATE KEY-----"; // 完整私钥字符串
String passphrase = ""; // 密码短语（如有）
try {
// 使用密钥登录
// 添加私钥
// 读取私钥文件内容为字符串（确保是 PEM 格式）
jsch.addIdentity("/Users/gengshuaijia/.ssh/id_ed25519");
// String privateKeyContent = new String(Files.readAllBytes(Paths.get(sshConfig.getPrivatekeypath())));
// // 将私钥内容直接传入（适用于内存中已有私钥字符串的场景）
// jsch.addIdentity("id_rsa", privateKeyContent.getBytes(), null, null);
// 后续会话连接逻辑...
//ssh 142128133dc08216fe81225ae78988d96019b57e-cvcwkd@cvcwkd.ssh.cloudstudio.work
Session session = jsch.getSession("142128133dc08216fe81225ae78988d96019b57e-cvcwkd", "cvcwkd.ssh.cloudstudio.work", 22);
session.setConfig("StrictHostKeyChecking", "no");
session.setConfig("PreferredAuthentications", "publickey,keyboard-interactive,password");
session.connect();
String echoHello = executeCommand(session, "date");
System.out.printf("echoHello: %s\n", echoHello);
} catch (JSchException e) {
e.printStackTrace();
}
}
public static String executeCommand(Session session, String command) {
StringBuilder result = new StringBuilder();
try {
Channel channel = session.openChannel("exec");
((ChannelExec) channel).setCommand(command);
channel.setInputStream(null);
((ChannelExec) channel).setErrStream(System.err);
InputStream in = channel.getInputStream();
channel.connect();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
String line;
while ((line = reader.readLine()) != null) {
result.append(line).append("\n");
}
channel.disconnect();
session.disconnect();
} catch (JSchException | java.io.IOException e) {
e.printStackTrace();
}
return result.toString();
}
}