java实现sftp客户端上传文件以及文件夹的功能代码
作者:java.小菜鸟 时间:2023-02-14 22:07:28
1.依赖的jar文件 jsch-0.1.53.jar
2.登录方式有密码登录,和密匙登录
代码:
主函数:
import java.util.Properties;
import com.cloudpower.util.Login;
import com.util.LoadProperties;
public class Ftp {
public static void main(String[] args) {
Properties properties = LoadProperties.getProperties();
Login.login(properties);
}
}
登陆页面的代码:
package com.cloudpower.util;
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();
}
}
}
文件上传的代码:
package com.cloudpower.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Scanner;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;
public class UpLoadFile {
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;
try {
sftp.cd(dPath);
Scanner scanner = new Scanner(System.in);
System.out.println(dPath + ":此目录已存在,文件可能会被覆盖!是否继续y/n?");
String next = scanner.next();
if (!next.toLowerCase().equals("y")) {
return;
}
} catch (SftpException e) {
sftp.mkdir(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();
}
}
}
}
}
读取配置文件的代码:
package com.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
public class LoadProperties {
public static Properties getProperties() {
File file = new File(Class.class.getClass().getResource("/").getPath()
+ "properties.properties");
InputStream inputStream = null;
try {
inputStream = new FileInputStream(file);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Properties properties = new Properties();
try {
properties.load(inputStream);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return properties;
}
}
代码目录结构:
测试运行时配置文件放在项目的bin目录下(打包成可运行jar文件的时候要删除,打包完成后将配置文件和jar包放在同级目录下即可):
properties.properties
ip=
user=
pwd=
port=22
privateKeyPath=
passphrase=
sourcePath=
destinationPath=/home/dbbs/f
打包可运行jar文件:
Export->java->Runnabe JAR file
完成后
在控制台运行java -jar 导出jar包的名字.jar 即可
来源:http://www.cnblogs.com/zuo-java/p/5913295.html
标签:java,上传
![](/images/zang.png)
![](/images/jiucuo.png)
猜你喜欢
接口签名怎么用Java实现
2023-02-18 03:22:10
![](https://img.aspxhome.com/file/2023/3/61853_0s.png)
android自定义环形对比图效果
2023-06-15 19:49:19
![](https://img.aspxhome.com/file/2023/4/82404_0s.jpg)
一篇文章带你了解JVM垃圾回收
2023-08-06 23:42:20
![](https://img.aspxhome.com/file/2023/9/61769_0s.png)
Mybatis拦 截 器实现数据权限的示例代码
2023-11-19 20:15:04
Java 如何优雅的抛出业务异常
2023-11-24 04:04:34
Java中避免NullPointerException的方法总结
2021-08-29 08:09:24
jsp如何获取Session中的值
2023-07-01 05:59:28
Java使用JDBC实现Oracle用户认证的方法详解
2022-10-06 08:59:36
java基础之包装类的介绍及使用
2023-01-10 17:45:29
![](https://img.aspxhome.com/file/2023/5/61255_0s.png)
linux环境下java程序打包成简单的hello world输出jar包示例
2023-11-26 11:11:37
![](https://img.aspxhome.com/file/2023/8/60378_0s.png)
springBoot之如何获取接口请求数据和返回数据实现日志
2023-11-23 10:43:58
dubbo服务链路跟踪方式
2023-08-24 09:54:21
![](https://img.aspxhome.com/file/2023/6/58296_0s.png)
Java设计模式之命令模式详解
2023-11-15 21:18:43
Kotlin开发Android应用实例详解
2023-09-11 00:22:50
![](https://img.aspxhome.com/file/2023/9/58149_0s.png)
JAVA实现经典扫雷游戏的示例代码
2022-01-26 04:20:18
![](https://img.aspxhome.com/file/2023/6/60686_0s.jpg)
分布式系统下调用链追踪技术面试题
2023-11-25 05:55:00
![](https://img.aspxhome.com/file/2023/6/60126_0s.png)
详解ThreadLocal为什么会内存溢出原理
2023-11-09 18:45:26
![](https://img.aspxhome.com/file/2023/3/59183_0s.png)
保证缓存和数据库的数据一致性详解
2023-11-18 08:10:44
![](https://img.aspxhome.com/file/2023/3/59573_0s.png)
redis统计APP在线人数的实例
2023-11-24 23:56:54
idea在用Mybatis时xml文件sql不提示解决办法(提示后背景颜色去除)
2023-11-09 01:45:51
![](https://img.aspxhome.com/file/2023/0/59250_0s.png)