Java 使用Ssh网络协议 进行服务器上传和下载
package rsbc.card.ftpUtil;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Iterator;
import java.util.Vector;
import org.apache.commons.io.FilenameUtils;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.ChannelSftp.LsEntry;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;
/**
* 使用 ssh 实现文件上传下载
* @author admin
*
*/
public class Ssh {
public static final String host = "192.168.125.122";
public static final int port = 22;
public static final String username = "123";
public static final String password = "123";
//上传路径 文件级回执文件 上传
public static final String pathnameput = "/app/mcb/sction/data/tablefile/";//上传服务器路径
public static Session connect(String host, Integer port, String user, String password) throws JSchException{
Session session = null;
try {
JSch jsch = new JSch();
if(port != null){
session = jsch.getSession(user, host, port.intValue());
}else{
session = jsch.getSession(user, host);
}
session.setPassword(password);
//设置第一次登陆的时候提示，可选值:(ask | yes | no)
session.setConfig("StrictHostKeyChecking", "no");
//30秒连接超时
session.connect(30000);
} catch (JSchException e) {
e.printStackTrace();
System.out.println("获取连接发生错误");
throw e;
}
return session;
}
public static void download(String directory,String srcFile, String saveFile, ChannelSftp sftp) throws UnsupportedEncodingException {
Vector conts = null;
try{
conts = sftp.ls(srcFile);
} catch (SftpException e) {
e.printStackTrace();
// log.debug("ChannelSftp sftp罗列文件发生错误",e);
}
File file = new File(saveFile);
if(!file.exists()) file.mkdir();
//文件
if(srcFile.indexOf(".") > -1){
try {
sftp.get(srcFile, saveFile);
} catch (SftpException e) {
e.printStackTrace();
// log.debug("ChannelSftp sftp下载文件发生错误",e);
}
}else{
//文件夹(路径)
for (Iterator iterator = conts.iterator(); iterator.hasNext();) {
LsEntry obj = (LsEntry) iterator.next();
String filename = new String(obj.getFilename().getBytes(),"UTF-8");
if(!(filename.indexOf(".") > -1)){
directory = FilenameUtils.normalize(directory + System.getProperty("file.separator") + filename);
srcFile = directory;
saveFile = FilenameUtils.normalize(saveFile + System.getProperty("file.separator") + filename);
}else{
//扫描到文件名为".."这样的直接跳过
String[] arrs = filename.split("\\.");
if((arrs.length > 0) && (arrs[0].length() > 0)){
srcFile = FilenameUtils.normalize(directory + System.getProperty("file.separator") + filename);
}else{
continue;
}
}
download(directory, srcFile, saveFile, sftp);
}
}
}
//下载方法
//remoteDir 路径名称 remoteDirtxt路径名称加上文件名称 localFile 保存路径
public static void downloadtxt(String remoteDir,String remoteDirtxt,String localFile){
ChannelSftp sftp = null;
Session session = null;
try {
session = Ssh.connect(host, port, username, password);
Channel channel = session.openChannel("sftp");
channel.connect();
sftp = (ChannelSftp) channel;
// System.out.println("上传附件+++++:" + wa.getAttachName());
download(remoteDir,remoteDirtxt,localFile,sftp);
}catch(Exception e) {
e.printStackTrace();
}finally {
if(sftp != null)sftp.disconnect();
if(session != null)session.disconnect();
}
}
/**
* 上传文件
*
* @param localPath
* 本地路径，若为空，表示当前路径
* @param localFile
* 本地文件名，若为空或是“*”，表示目前下全部文件
* @param remotePath
* 远程路径，若为空，表示当前路径，若服务器上无此目录，则会自动创建
* @throws Exception
*/
public static void putFile(String localPath, String localFile, String remotePath,Channel channel)
throws Exception {
Channel channelSftp =channel;
channelSftp.connect();
ChannelSftp c = (ChannelSftp) channelSftp;
String remoteFile = null;
if (remotePath != null && remotePath.trim().length() > 0) {
try {
c.mkdir(remotePath);
} catch (Exception e) {
}
remoteFile = remotePath + "/.";
} else {
remoteFile = ".";
}
String file = null;
if (localFile == null || localFile.trim().length() == 0) {
file = "*";
} else {
file = localFile;
}
if (localPath != null && localPath.trim().length() > 0) {
if (localPath.endsWith("/")) {
file = localPath + file;
} else {
file = localPath + "/" + file;
}
}
c.put(file, remoteFile);
channelSftp.disconnect();
}
//上传
//String localPath,本地路径
//String uploadFile,文件名
//String remotePath 服务器路径
public static String uploadtxt(String localPath,String uploadFile){
ChannelSftp sftp = null;
Session session = null;
String path=pathnameput;
try {
session = Ssh.connect(host, port, username, password);
Channel channel = session.openChannel("sftp");
putFile(localPath,uploadFile,pathnameput,channel);
}catch(Exception e) {
e.printStackTrace();
}finally {
if(sftp != null)sftp.disconnect();
if(session != null)session.disconnect();
}
return path;
}
}
真实有效 老大帮我写的 而且也实现了
如果不行 可能jar不一样
我的用是这个