pom.xml添加的依赖：
<!-- https://mvnrepository.com/artifact/ch.ethz.ganymed/ganymed-ssh2 -->
<dependency>
<groupId>ch.ethz.ganymed</groupId>
<artifactId>ganymed-ssh2</artifactId>
<version>262</version>
</dependency>
这里注意，不同版本的这玩意用法有差别。这里我使用的是262。
操作类代码如下：
import ch.ethz.ssh2.*;
import java.io.*;
/**
* @Author: 风萧古道的博客 windypath.com
* @Date: 2019/11/29 15:14
*/
public class SSHUtil {
// uploadFile to Linux
/**
* 上传文件到Linux
*
* @param ip ip地址
* @param username 登录用户名
* @param password 密码
* @param remoteFilePath 目标文件所在完整目录
* @param file 本地文件File对象
* @return
*/
public static boolean uploadFile(String ip, String username, String password, String remoteFilePath, File file) {
FileInputStream input = null;
BufferedOutputStream boutput = null;
Connection conn = null;
try {
conn = new Connection(ip);
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(username, password);
if (isAuthenticated == false) {
throw new IOException("Authentication failed.");
}
SCPClient scpClient = conn.createSCPClient();
boutput = scpClient.put(file.getName(), file.length(), remoteFilePath, "0600");
byte[] buffer = new byte[1024 * 8];
input = new FileInputStream(file);
int length = -1;
while ((length = input.read(buffer)) != -1) {
boutput.write(buffer, 0, length);
}
boutput.flush();
} catch (IOException e) {
e.printStackTrace(System.err);
} finally {
try {
boutput.close();
input.close();
conn.close();
} catch (IOException e) {
e.printStackTrace(System.err);
}
}
return true;
}
/**
* 从远程服务器上下载文件
*
* @param ip ip地址
* @param username 用户名
* @param password 密码
* @param remoteFile 要下载的文件的完整路径
* @param localFileName 下载到本地的文件名
* @return
*/
public static boolean downloadFile(String ip, String username, String password, String remoteFile, String localFileName) {
SCPInputStream binput = null;
FileOutputStream output = null;
BufferedOutputStream boutput = null;
Connection conn = null;
try {
File file = new File(localFileName);
conn = new Connection(ip);
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(username, password);
if (isAuthenticated == false) {
throw new IOException("Authentication failed.");
}
SCPClient scpClient = conn.createSCPClient();
binput = scpClient.get(remoteFile);
output = new FileOutputStream(file);
boutput = new BufferedOutputStream(output);
byte[] buffer = new byte[1024 * 8];
int length = -1;
while ((length = binput.read(buffer)) != -1) {
boutput.write(buffer, 0, length);
}
} catch (IOException e) {
e.printStackTrace(System.err);
} finally {
try {
binput.close();
boutput.close();
output.close();
conn.close();
} catch (IOException e) {
e.printStackTrace(System.err);
}
}
return true;
}
/**
* 获取远程文件的输入流
*
* @param ip ip
* @param username 用户名
* @param password 密码
* @param remoteFile 远程文件的完整地址
* @return 输入流
*/
public static SCPInputStream getRemoteFileInputStream(String ip, String username, String password, String remoteFile) {
SCPInputStream binput = null;
Connection conn = null;
try {
conn = new Connection(ip);
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(username, password);
if (isAuthenticated == false) {
throw new IOException("Authentication failed.");
}
SCPClient scpClient = conn.createSCPClient();
binput = scpClient.get(remoteFile);
} catch (IOException e) {
e.printStackTrace(System.err);
}
return binput;
}
/**
* 执行远程服务器的控制台命令
*
* @param ip ip地址
* @param username 用户名
* @param password 密码
* @param cmd 控制台命令
*/
public static void executeCmd(String ip, String username, String password, String cmd) {
Connection conn = null;
try {
conn = new Connection(ip);
conn.connect();
boolean isAuthenticated = conn.authenticateWithPassword(username, password);
if (isAuthenticated == false) {
throw new IOException("Authentication failed.");
}
Session sess = conn.openSession();
sess.execCommand(cmd + "\n");
InputStream stdout = new StreamGobbler(sess.getStdout());
BufferedReader br = new BufferedReader(
new InputStreamReader(stdout));
while (true) {
String line = br.readLine();
if (line == null) {
break;
}
System.out.println(line);
}
} catch (IOException e) {
e.printStackTrace(System.err);
} finally {
conn.close();
}
}
}
值得一提的是，uploadFile()方法的最后一个参数传入的是指向本地文件的一个File，也就是要上传的文件，而在downloadFile()方法中，最后一个参数是字符串，就是将目标文件下载下来之后，要叫什么名字，记得带上后缀。
执行命令的话，执行一次就新开一次session。一个session（好像貌似）不能做两件事（如上传文件的过程中创建一个新文件夹，再以新文件夹的目录为目标上传目录）。