使用的jar：
<dependencies>
<dependency>
<groupId>jsch</groupId>
<artifactId>jsch</artifactId>
<version>0.1.53</version>
</dependency>
</dependencies>
入口方法：
import java.util.HashMap;
public class Sftp {
public static void main(String[] args) {
String helpMessage = "You need enter 5 args\n"
+ "1. target ip or domain name\n"
+ "2. target user\n"
+ "3. target password\n"
+ "4. source path\n"
+ "5. destination path\n";
if (args[0].equalsIgnoreCase("-help") || args[0].equalsIgnoreCase("-h")) {
System.out.println(helpMessage);
}
if (args.length != 5) {
System.out.println("The number of parameters entered is incorrect!\n" + helpMessage);
return;
}
HashMap<String, String> map = new HashMap<>(8);
map.put("ip",args[0]);
map.put("user",args[1]);
map.put("pwd",args[2]);
map.put("sourcePath",args[3]);
map.put("destinationPath",args[4]);
map.put("port","22");
Login.login(map);
}
}
登录处理：
import java.io.Console;
import java.util.Properties; import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session; public class Login { public static void login(Properties properties) {
String ip = properties.getProperty("ip");
String user = properties.getProperty("user");
String pwd = properties.getProperty("pwd");
String port = properties.getProperty("port");
String privateKeyPath = properties.getProperty("privateKeyPath");
String passphrase = properties.getProperty("passphrase");
String sourcePath = properties.getProperty("sourcePath");
String destinationPath = properties.getProperty("destinationPath"); if (ip != null && !ip.equals("") && user != null && !user.equals("")
&& port != null && !port.equals("") && sourcePath != null
&& !sourcePath.equals("") && destinationPath != null
&& !destinationPath.equals("")) { if (privateKeyPath != null && !privateKeyPath.equals("")) {
sshSftp2(ip, user, Integer.parseInt(port), privateKeyPath,
passphrase, sourcePath, destinationPath);
} else if (pwd != null && !pwd.equals("")) {
sshSftp(ip, user, pwd, Integer.parseInt(port), sourcePath,
destinationPath);
} else {
Console console = System.console();
System.out.print("Enter password:");
char[] readPassword = console.readPassword();
sshSftp(ip, user, new String(readPassword),
Integer.parseInt(port), sourcePath, destinationPath);
}
} else {
System.out.println("请先设置配置文件");
}
} /**
* 密码方式登录
*
* @param ip
* @param user
* @param psw
* @param port
* @param sPath
* @param dPath
*/
public static void sshSftp(String ip, String user, String psw, int port,
String sPath, String dPath) {
System.out.println("password login");
Session session = null; JSch jsch = new JSch();
try {
if (port <= 0) {
// 连接服务器，采用默认端口
session = jsch.getSession(user, ip);
} else {
// 采用指定的端口连接服务器
session = jsch.getSession(user, ip, port);
} // 如果服务器连接不上，则抛出异常
if (session == null) {
throw new Exception("session is null");
} // 设置登陆主机的密码
session.setPassword(psw);// 设置密码
// 设置第一次登陆的时候提示，可选值：(ask | yes | no)
session.setConfig("StrictHostKeyChecking", "no");
// 设置登陆超时时间
session.connect(300000);
UpLoadFile.upLoadFile(session, sPath, dPath);
} catch (Exception e) {
e.printStackTrace();
} System.out.println("success");
} /**
* 密匙方式登录
*
* @param ip
* @param user
* @param port
* @param privateKey
* @param passphrase
* @param sPath
* @param dPath
*/
public static void sshSftp2(String ip, String user, int port,
String privateKey, String passphrase, String sPath, String dPath) {
System.out.println("privateKey login");
Session session = null;
JSch jsch = new JSch();
try {
// 设置密钥和密码
// 支持密钥的方式登陆，只需在jsch.getSession之前设置一下密钥的相关信息就可以了
if (privateKey != null && !"".equals(privateKey)) {
if (passphrase != null && "".equals(passphrase)) {
// 设置带口令的密钥
jsch.addIdentity(privateKey, passphrase);
} else {
// 设置不带口令的密钥
jsch.addIdentity(privateKey);
}
}
if (port <= 0) {
// 连接服务器，采用默认端口
session = jsch.getSession(user, ip);
} else {
// 采用指定的端口连接服务器
session = jsch.getSession(user, ip, port);
}
// 如果服务器连接不上，则抛出异常
if (session == null) {
throw new Exception("session is null");
}
// 设置第一次登陆的时候提示，可选值：(ask | yes | no)
session.setConfig("StrictHostKeyChecking", "no");
// 设置登陆超时时间
session.connect(300000);
UpLoadFile.upLoadFile(session, sPath, dPath);
System.out.println("success");
} catch (Exception e) {
e.printStackTrace();
}
}
}
Login.java
文件上传的代码：
import java.io.*;
import java.util.Vector; import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException; public class UpLoadFile {
private static String split = "\\"; public static void upLoadFile(Session session, String sPath, String dPath) { Channel channel = null;
try {
channel = (Channel) session.openChannel("sftp");
channel.connect(10000000);
ChannelSftp sftp = (ChannelSftp) channel; if (isDirExist(sftp, dPath)) {
String createPath = dPath + sPath.substring(sPath.lastIndexOf(split) + split.length());
if (isDirExist(sftp, createPath)) {
deleteSFTP(sftp, createPath);
}
} else {
createDir(sftp, dPath);
}
sftp.cd(dPath);
File file = new File(sPath);
copyFile(sftp, file, sftp.pwd());
} catch (Exception e) {
e.printStackTrace();
} finally {
session.disconnect();
channel.disconnect();
}
} public static void copyFile(ChannelSftp sftp, File file, String pwd) { if (file.isDirectory()) {
File[] list = file.listFiles();
try {
try {
String fileName = file.getName();
sftp.cd(pwd);
System.out.println("正在创建目录:" + sftp.pwd() + "/" + fileName);
sftp.mkdir(fileName);
System.out.println("目录创建成功:" + sftp.pwd() + "/" + fileName);
} catch (Exception e) {
// TODO: handle exception
}
pwd = pwd + "/" + file.getName();
try { sftp.cd(file.getName());
} catch (SftpException e) {
// TODO: handle exception
e.printStackTrace();
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for (int i = 0; i < list.length; i++) {
copyFile(sftp, list[i], pwd);
}
} else { try {
sftp.cd(pwd); } catch (SftpException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
System.out.println("正在复制文件:" + file.getAbsolutePath());
InputStream instream = null;
OutputStream outstream = null;
try {
outstream = sftp.put(file.getName());
instream = new FileInputStream(file); byte b[] = new byte[1024];
int n;
try {
while ((n = instream.read(b)) != -1) {
outstream.write(b, 0, n);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} } catch (SftpException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
outstream.flush();
outstream.close();
instream.close(); } catch (Exception e2) {
// TODO: handle exception
e2.printStackTrace();
}
}
}
} /**
* 创建目录
*
* @param createPath
* @return
*/
public static void createDir(ChannelSftp sftp, String createPath) {
try {
if (isDirExist(createpath)) {
sftp.cd(createpath);
}
String pathArry[] = createpath.split("/");
StringBuffer filePath = new StringBuffer("/");
for (String path : pathArry) {
if (path.equals("")) {
continue;
}
filePath.append(path + "/");
if (isDirExist(filePath.toString())) {
sftp.cd(filePath.toString());
} else {
// 建立目录
sftp.mkdir(filePath.toString());
// 进入并设置为当前目录
sftp.cd(filePath.toString());
}
}
} catch (SftpException e) {
e.printStackTrace();
}
} /**
* 删除stfp文件
*
* @param directory：要删除文件所在目录
*/
public static void deleteSFTP(ChannelSftp sftp, String directory) {
try {
if (isDirExist(directory)) {
Vector<ChannelSftp.LsEntry> vector = sftp.ls(directory);
if (vector.size() == 1) { // 文件，直接删除
sftp.rm(directory);
} else if (vector.size() == 2) { // 空文件夹，直接删除
sftp.rmdir(directory);
} else {
String fileName = "";
// 删除文件夹下所有文件
for (ChannelSftp.LsEntry en : vector) {
fileName = en.getFilename();
if (".".equals(fileName) || "..".equals(fileName)) {
continue;
} else {
deleteSFTP(sftp,directory + "/" + fileName);
}
}
// 删除文件夹
sftp.rmdir(directory);
}
}
} catch (Exception e) {
e.printStackTrace();
}
} /**
* 判断目录是否存在
*
* @param directory
* @return
*/
public static boolean isDirExist(String directory) {
try {
Vector<?> vector = sftp.ls(directory);
return (null != vector);
} catch (Exception e) {
return false;
}
}
}
UpLoadFile.java
参考：