用jsch.jar实现SFTP上传下载删除【转】【补】

java类:

需要引用的jar:

　　jsch-0.1.53.jar

关于jsch有篇文章关于目录的问题写得非常好:http://www.zzzyk.com/show/9f02969327434a6c.htm

 SFTPTool.java

package test.md5;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.Properties;
import java.util.Vector;

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;

public class SFTPTool {

    
    /**
     * 1. 第一步:连接sftp服务器,先获取Session
     * 
     * @param host
     *            主机
     * @param port
     *            端口
     * @param username
     *            用户名
     * @param password
     *            密码
     * @return
     */
    public Session getSession(String host, int port, String username,String password) {
        Session session = null;
        try {
            JSch jsch = new JSch();
            session = jsch.getSession(username, host, port);
            System.out.println("Session created.");
            session.setPassword(password);
            Properties sshConfig = new Properties();
            sshConfig.put("StrictHostKeyChecking", "no");
            session.setConfig(sshConfig);
            session.connect();
            System.out.println("Session connected.");
        } catch (Exception e) {
            e.printStackTrace();
            if (session!= null && session.isConnected()){
                session.disconnect();
            }
        }
        return session;
    }
    
    
    /**
     * 2.第二步: 连接sftp服务器,再获取链接
     * @return
     */
    public ChannelSftp getConnect(Session session) {
        ChannelSftp sftp = null;
        try {
            if(session == null){
                System.out.println("Can't Create Connect,Because session is null");
                return sftp;
            }
            Channel channel = session.openChannel("sftp");
            System.out.println("Opening Channel.");
            channel.connect();
            sftp = (ChannelSftp) channel;
            System.out.println("Connected to " + session.getHost()+":"+session.getPort());
        } catch (Exception e) {
            e.printStackTrace();
            if (sftp!= null && sftp.isConnected()){
                sftp.disconnect();
            }
        }
        return sftp;
    }

    /**
     * 3.第三步:关闭 channel和session
     * @param channel
     */
    public void disconnect(Channel channel ,Session session) {
        try {
            if (channel!= null && channel.isConnected()){
                channel.disconnect();
                System.out.println("Disconnected channel");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        try {
            if (session!= null && session.isConnected()){
                session.disconnect();
                System.out.println("Disconnected session");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    
    
    /**
     * 上传文件到远端服务器,如果在同一目录下,文件名相同会自动替换
     * 如果上传一半,网络原因中断,那服务器上会有一半大小的文件,请重新上传.
     * @param destDirectory
     *            远端服务器要上传的目录  : /data/temp/test/
     * @param srcDirectory
     *            本地要上传的目录 : D:/test/
     * @param srcFileName
     *            本地要上传的文件 : upload.txt
     * @param sftp
     */
    public void upload(String destDirectory, String srcDirectory, String srcFileName, ChannelSftp sftp) throws Exception{
        try {
            sftp.cd(destDirectory);
            File file = new File(srcDirectory+srcFileName);
            if(!file.exists()){
                throw new Exception(srcDirectory+srcFileName+" is not exists");
            }
            System.out.println("上传本地文件"+srcDirectory+srcFileName+"到远端服务器"+destDirectory+" 开始");
            sftp.put(new FileInputStream(file), file.getName());
            System.out.println("上传本地文件"+srcDirectory+srcFileName+"到远端服务器"+destDirectory+" 结束");
//            sftp.put("D:/application/eclipse64ee/workspace/SFTP/src/com/testdemo/www/ftp/SFTPTooL.java","/data/temp/test");//将本地目录的文件直接上传到服务器上
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }

    /**
     * 上传流到远端服务器,如果在同一目录下,文件名相同会自动替换
     * 如果上传一半,网络原因中断,那服务器上会有一半大小的文件,请重新上传.
     * @param destDirectory
     *            远端服务器要上传的目录  : /data/temp/test/
     * @param srcDirectory
     *            本地要上传的流 : D:/test/
     * @param srcFileName
     *            本地指定到远端服务器要生成的文件名 : upload.txt
     * @param sftp
     */
    public void upload(String destDirectory, InputStream srcStream, String srcFileName, ChannelSftp sftp) throws Exception{
        try {
            sftp.cd(destDirectory);
            if(srcStream == null){
                throw new Exception("流为空,"+srcFileName+" is not exists");
            }
            System.out.println("上传流"+srcFileName+"到远端服务器"+destDirectory+" 开始");
            sftp.put(srcStream, srcFileName);
            System.out.println("上传流"+srcFileName+"到远端服务器"+destDirectory+" 结束");
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }
    
    /**
     * 在远端服务器上下载文件
     * 
     * @param remoteDirectory
     *            在远端服务器上要下载的目录 :/data/temp/test/
     * @param remoteFile
     *            在远端服务器上要下载的文件名 :　download.txt
     * @param localDirectory
     *            本地所在文件夹 : D:/test/
     * @param localFile
     *            本地将要生成的的文件名 : download.txt
     * @param sftp 链接
     */
    public void download(String remoteDirectory, String remoteFile,String localDirectory, String localFile, ChannelSftp sftp)  throws Exception{
        try {
            sftp.cd(remoteDirectory);
            File file = new File(localDirectory);
            if(!file.exists())
                file.mkdirs();
            File saveFile = new File(localDirectory,localFile);
            System.out.println("从远端服务器下载文件"+remoteDirectory+remoteFile+"到本地"+localDirectory+localFile+" 开始");
            sftp.get(remoteFile, new FileOutputStream(saveFile));
            System.out.println("从远端服务器下载文件"+remoteDirectory+remoteFile+"到本地"+localDirectory+localFile+" 结束");
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }

    /**
     * 在远端服务器上批量下载文件到本地文件夹
     *
     * @param remoteDirectory
     *            在远端服务器上要下载的目录 :/data/temp/test/
     * @param remoteFile
     *            在远端服务器上要下载的文件名 :　*.txt
     * @param localDirectory
     *            本地所在文件夹 : D:/test/
     * @param sftp 链接
     */
    public void download(String remoteDirectory, String remoteFile,String localDirectory, ChannelSftp sftp)  throws Exception{
        try {
            sftp.cd(remoteDirectory);
            File file = new File(localDirectory);
            if(!file.exists())
                file.mkdirs();
            System.out.println("从远端服务器下载文件"+remoteDirectory+remoteFile+"到本地"+localDirectory+" 开始");
            sftp.get(remoteFile, localDirectory);
            System.out.println("从远端服务器下载文件"+remoteDirectory+remoteFile+"到本地"+localDirectory+" 结束");
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }
    
    /**
     * 在远端服务器上删除文件(仅能删除文件,不能删目录)
     * 
     * @param directory
     *            在远端服务器上,要删除文件所在目录 : /data/temp/test/
     * @param deleteFile
     *            在远端服务器上,要删除的文件
     * @param sftp 链接
     */
    public void delete(String directory, String deleteFile, ChannelSftp sftp)  throws Exception{
        try {
            sftp.cd(directory);
            sftp.rm(deleteFile);
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }

    /**
     * 在远端服务器上的指定文件夹下创建新的目录(多层次)
     * 
     * @param directory
     *            远端服务器上,要创建文件所在目录 : /data/temp/test/
     * @param folderPath
     *            远端服务器上,要创建的文件夹名 : ( 可以为多层次,形如  good 或  test2/good/ok )
     * @param sftp 链接
     */
    public void mkdir(String directory, String folderPath, ChannelSftp sftp)  throws Exception{
        try {
            sftp.cd(directory);//切换目录,如果目录不存在就会报错
        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
        String[] folders = folderPath.split("/");
        for(String currentFolder :folders){
            try{
                sftp.ls(currentFolder);//展示目录,如果文件夹不存在就会报错
                sftp.cd(currentFolder);
            }catch(Exception e){
                sftp.mkdir(currentFolder);//即然不存在,就创建该文件夹
                sftp.cd(currentFolder);
                System.out.println(currentFolder+" is no exists, make the dir success");
            }
        }
    }
    
    /**
     * 列出目录下的文件
     * 
     * @param directory
     *            要列出的目录
     * @param sftp
     * @return
     * @throws SftpException
     */
    public Vector listFiles(String directory, ChannelSftp sftp)
            throws SftpException {
        return sftp.ls(directory);
    }

    /**
    * 将一个字符串转化为输入流
    */
    public static InputStream getStreamFromString(String sInputString) {
        if (sInputString != null && !sInputString.trim().equals("")) {
            try {
                ByteArrayInputStream tInputStringStream = new ByteArrayInputStream(
                        hexStringToBytes(sInputString));
                return tInputStringStream;
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
        return null;
    }
    
    /**
     * 16进制字符串转成byte[]数组
     * @param hexString 由PNG图片生成的16进制字符串
     * @return
     */
    public static byte[] hexStringToBytes(String hexString) {  
        if (hexString == null || hexString.equals("")) {  
            return null;  
        }  
        hexString = hexString.toUpperCase();
        int length = hexString.length() / 2;  
        char[] hexChars = hexString.toCharArray();  
        byte[] d = new byte[length];  
        for (int i = 0; i < length; i++) {  
            int pos = i * 2;  
            d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1]));  
        }  
        return d;  
    }  
    
    private static byte charToByte(char c) {  
        return (byte) "0123456789ABCDEF".indexOf(c);  
    }  
    
    public static void main(String[] args) throws Exception{
        SFTPTool sf = new SFTPTool();
        Session session = null;
        ChannelSftp channel = null;
        InputStream stream = null;
        try{
            String host = "192.168.1.120";//ip
            int port = 22;                //port
            String username = "weblogic";//user
            String password = "weblogic";//password
            session = sf.getSession(host, port, username, password);
            channel = sf.getConnect(session);
//            stream = SFTPTool.getStreamFromString(StreamTool.streamStr);
            sf.mkdir    ("/data/temp/test/", "123/888/789", channel);//建目录
//            sf.upload    ("/data/temp/test/", "D:/temp/","HousingEstateManagerment.rar", channel);//上传
//            sf.upload    ("/data/temp/test/", stream,"ddd.PNG", channel);//上传
//            sf.download    ("/data/temp/test/", "download.txt", "D:/temp/haha/","download.txt", channel);//下载
//            sf.delete    ("/data/temp/test/", "delete.txt", channel);//删除
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            sf.disconnect(channel,session);
        }
    }
    
}

 

 

 StreamTool.java

package com.stream.www.ftp;
 
import java.io.ByteArrayInputStream;
import java.io.InputStream;
/**
 * http://www.cnblogs.com/jifeng/archive/2010/08/26/1809182.html
 * @author King
 *
 */
public class StreamTool {
    /**  PNG图片转成的字符串 */
    public static String streamStr = "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    /**
    * 将一个字符串转化为输入流
    */
    public static InputStream getStreamFromString(String sInputString) {
        if (sInputString != null && !sInputString.trim().equals("")) {
            try {
                ByteArrayInputStream tInputStringStream = new ByteArrayInputStream(
                        hexStringToBytes(sInputString));
                return tInputStringStream;
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
        return null;
    }
     
    /**
     * 16进制字符串转成byte[]数组
     * @param hexString 由PNG图片生成的16进制字符串
     * @return
     */
    public static byte[] hexStringToBytes(String hexString) { 
        if (hexString == null || hexString.equals("")) { 
            return null; 
        } 
        hexString = hexString.toUpperCase();
        int length = hexString.length() / 2; 
        char[] hexChars = hexString.toCharArray(); 
        byte[] d = new byte[length]; 
        for (int i = 0; i < length; i++) { 
            int pos = i * 2; 
            d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1])); 
        } 
        return d; 
    } 
     
    private static byte charToByte(char c) { 
        return (byte) "0123456789ABCDEF".indexOf(c); 
    }
}

 

遇到异常

java.lang.IllegalArgumentException: No Configuration was registered that can handle the configuration named com.sun.security.jgss.krb5.initiate

于2017/10/17遇上一个很脑残的异常,首先ping 和telnet都正常,其它系统使用一样的代码也正常能使用sftp功能,最终换了4个jsch-0.1.XX.jar才正常.

解决方法: 把jsch-0.1.42.jar替换成jsch-0.1.31.jar,没错,就是jar包问题,这个错报得真TMXX,偿试了千百种方法才误打误撞改好了.

java.lang.IllegalArgumentException: No Configuration was registered that can handle the configuration named com.sun.security.jgss.krb5.initiate
    at com.bea.common.security.jdkutils.JAASConfiguration.getAppConfigurationEntry(JAASConfiguration.java:130)
    at sun.security.jgss.LoginConfigImpl.getAppConfigurationEntry(LoginConfigImpl.java:139)
    at javax.security.auth.login.LoginContext.init(LoginContext.java:243)
    at javax.security.auth.login.LoginContext.<init>(LoginContext.java:499)
    at sun.security.jgss.GSSUtil.login(GSSUtil.java:244)
    at sun.security.jgss.krb5.Krb5Util.getTicket(Krb5Util.java:136)
    at sun.security.jgss.krb5.Krb5InitCredential$1.run(Krb5InitCredential.java:328)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.security.jgss.krb5.Krb5InitCredential.getTgt(Krb5InitCredential.java:325)
    at sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential.java:128)
    at sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:106)
    at sun.security.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:172)
    at sun.security.jgss.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java:209)
    at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:195)
    at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:162)
    at com.jcraft.jsch.jgss.GSSContextKrb5.init(GSSContextKrb5.java:129)
    at com.jcraft.jsch.UserAuthGSSAPIWithMIC.start(UserAuthGSSAPIWithMIC.java:135)
    at com.jcraft.jsch.Session.connect(Session.java:419)
    at com.jcraft.jsch.Session.connect(Session.java:150)
    at f.SFTPTooL.getSession(SFTPTooL.java:43)

 

性能优化可参考

Jsch性能问题 

 

 

JSch - Java实现的SFTP（文件上传详解篇）

linux下SSH远程连接服务慢解决方案

ssh出现connection timeout

Jsch初步

修改DNS设置影响SSH登录速度 解决办法   貌似看来ssh登录缓慢与客户端设置的dns能否向外网请求dns还有关系