sftp + java，获取ftp文件，用的freesshd

package com.qing.qing.test;

import com.jcraft.jsch.*;
import com.sun.xml.internal.messaging.saaj.util.ByteInputStream;
import org.apache.commons.io.FileUtils;
import sun.awt.image.ByteInterleavedRaster;

import javax.swing.*;
import java.io.*;
import java.nio.charset.StandardCharsets;
import java.util.Iterator;
import java.util.Properties;
import java.util.Vector;

public class Test2 {
    public static void main(String[] args) {
        Session session = null;
        Channel channel = null;
        try {
            JSch jSch = new JSch();
            session = jSch.getSession("admin", "192.168.0.180",22);
            session.setPassword("666666");
            Properties sshConfig = new Properties();
            // ssh登录时不需要点击确定等验证
            sshConfig.put("StrictHostKeyChecking", "no");
            session.setConfig(sshConfig);
            session.connect();
            setUser(session);

            channel = session.openChannel("sftp");
            channel.connect(3000);
            ChannelSftp sftp = (ChannelSftp) channel; //强制转换

//            channel = session.openChannel("shell");
//            channel.connect(3000);
//            ChannelShell sftp = (ChannelShell) channel; //强制转换

            //取得文件列表
            Vector vector = sftp.ls("*");
            Iterator iterator = vector.iterator();
            int index = 0;
            while (iterator.hasNext()) {
                index++;
                ChannelSftp.LsEntry obj = (ChannelSftp.LsEntry) iterator.next();
                //取得文件名
                String file = obj.getFilename();
                //根据文件名获取文件流
                InputStream inputStream = sftp.get(file);

                byte[] buffer = TestBM.getByteArray(inputStream);
                String charStr = TestBM.getFilecharset(new ByteArrayInputStream(buffer));

                System.out.println("编码格式="+charStr);

                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(buffer), charStr));
                String ss = null;

                while((ss = bufferedReader.readLine()) != null){
                    System.out.println("	" + ss);
                }

                bufferedReader.close();

            }
//            channel = session.openChannel("exec");
//            ChannelExec sftp = (ChannelExec) channel; //强制转换
//            sftp.setCommand("ls");
//            channel.setInputStream(null);

        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            if(channel != null) channel.disconnect();
            if(session != null) session.disconnect();
        }
    }

    public static void setUser(Session session){
        UserInfo ui = new MyUserInfo(){
            public void showMessage(String message){
                JOptionPane.showMessageDialog(null, message);
            }
            public boolean promptYesNo(String message){
                Object[] options={ "yes", "no" };
                int foo=JOptionPane.showOptionDialog(null,
                        message,
                        "Warning",
                        JOptionPane.DEFAULT_OPTION,
                        JOptionPane.WARNING_MESSAGE,
                        null, options, options[0]);
                return foo==0;
            }

            // If password is not given before the invocation of Session#connect(),
            // implement also following methods,
            //   * UserInfo#getPassword(),
            //   * UserInfo#promptPassword(String message) and
            //   * UIKeyboardInteractive#promptKeyboardInteractive()

        };

        session.setUserInfo(ui);
    }

    public static abstract class MyUserInfo
            implements UserInfo, UIKeyboardInteractive{
        public String getPassword(){ return null; }
        public boolean promptYesNo(String str){ return false; }
        public String getPassphrase(){ return null; }
        public boolean promptPassphrase(String message){ return false; }
        public boolean promptPassword(String message){ return false; }
        public void showMessage(String message){ }
        public String[] promptKeyboardInteractive(String destination,
                                                  String name,
                                                  String instruction,
                                                  String[] prompt,
                                                  boolean[] echo){
            return null;
        }
    }
}