以下是使用.pem文件获取与amazon实例连接的代码。
import com.jcraft.jsch.*;
public class JConnectEC2shell{
public static void main(String[] arg){
try{
JSch jsch=new JSch();
String user = "ec2-user";
String host = "Enter Ip address of your instance";
int port = 22;
String privateKey = "D:\\privateKeyFile.pem";
jsch.addIdentity(privateKey);
System.out.println("identity added ");
Session session = jsch.getSession(user, host, port);
System.out.println("session created.");
// disabling StrictHostKeyChecking may help to make connection but makes it insecure
// see http://stackoverflow.com/questions/30178936/jsch-sftp-security-with-session-setconfigstricthostkeychecking-no
//
java.util.Properties config = new java.util.Properties();
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);
session.connect();
Channel channel=session.openChannel("shell");
// Enable agent-forwarding.
//((ChannelShell)channel).setAgentForwarding(true);
channel.setInputStream(System.in);
/*
// a hack for MS-DOS prompt on Windows.
channel.setInputStream(new FilterInputStream(System.in){
public int read(byte[] b, int off, int len)throws IOException{
return in.read(b, off, (len>1024?1024:len));
}
});
*/
channel.setOutputStream(System.out);
/*
// Choose the pty-type "vt102".
((ChannelShell)channel).setPtyType("vt102");
*/
/*
// Set environment variable "LANG" as "ja_JP.eucJP".
((ChannelShell)channel).setEnv("LANG", "ja_JP.eucJP");
*/
//channel.connect();
channel.connect(3*1000);
}
catch(Exception e){
System.out.println(e);
}
}
}
我想将.pem文件(jsch.addIdentity(privateKey);
)中的私钥设置为来自数据库的字符串。现在它是一个文件名。这是可能的,任何帮助都会很明显。我从链接click here
答案 0 :(得分:0)
Jsch
类提供this method,它将私钥和公钥都作为字节数组:
addIdentity(String name, byte[]prvkey, byte[]pubkey, byte[] passphrase)
因此,您可以将数据库字段读入字符串然后传递它,例如
// read db columns
String privateKey = ...
String publicKey = ...
String passphrase = ...
final JSch jsch = new JSch();
jsch.addIdentity("my key", privateKey.getBytes(), publicKey.getBytes(), passphrase.getBytes());
答案 1 :(得分:0)
我只是将pem文件名作为“我的密钥”,并将pem文件的内容作为byte []传递,如下所示。 jsch.addIdentity(“privateKeyFile.pem”,pemString.getBytes(),null,null);
注意,我必须在pem内容的第一行附加“+ System.getProperty(”line.separator“)”。其他行不需要行分隔符,但除非第一行以分隔符结尾,否则会出错。 例如 “----- BEGIN RSA私钥-----”+ System.getProperty(“line.separator”)
答案 2 :(得分:0)
呼叫JSCH
String pemFormat = addMarkers(connectionParams.getIdentity());
jsch.addIdentity("TunnelPrivateKey.pem", pemFormat.getBytes(), null, null);
删除空间并添加标记
private static String addMarkers(String identity) {
identity = identity.replaceAll("\\s+", "");
String lineBreak = "\r\n";
StringBuilder key = new StringBuilder();
key.append("-----BEGIN RSA PRIVATE KEY-----");
key.append(lineBreak);
for (int i = 0; i< identity.length(); i+=76) {
int len = Math.min(i+76 , identity.length());
key.append(identity.substring(i, len));
key.append(lineBreak);
}
key.append("-----END RSA PRIVATE KEY-----");
return key.toString();
}