SFTPUtils工具类及使用

配置maven

<dependency>      <groupId>com.jcraft</groupId>      <artifactId>jsch</artifactId>      <version>0.1.54</version></dependency>

工具类

package com.hk.utils;import com.jcraft.jsch.ChannelSftp;import com.jcraft.jsch.JSch;import com.jcraft.jsch.JSchException;import com.jcraft.jsch.Session;import com.jcraft.jsch.SftpException;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.net.SocketException;import java.util.ArrayList;import java.util.List;import java.util.Properties;import java.util.Vector;/** * User: hk * Date: 2017/8/10 下午4:31 * version: 1.0 */public class SFTPUtil implements AutoCloseable {    private Session session = null;    private ChannelSftp channel = null;    /**     * 连接sftp服务器     *     * @param serverIP 服务IP     * @param port     端口     * @param userName 用户名     * @param password 密码     * @throws SocketException SocketException     * @throws IOException     IOException     * @throws JSchException   JSchException     */    public void connectServer(String serverIP, int port, String userName, String password) throws SocketException, IOException, JSchException {        JSch jsch = new JSch();        // 根据用户名，主机ip，端口获取一个Session对象        session = jsch.getSession(userName, serverIP, port);        // 设置密码        session.setPassword(password);        // 为Session对象设置properties        Properties config = new Properties();        config.put("StrictHostKeyChecking", "no");        session.setConfig(config);        // 通过Session建立链接        session.connect();        // 打开SFTP通道        channel = (ChannelSftp) session.openChannel("sftp");        // 建立SFTP通道的连接        channel.connect();    }    /**     * 自动关闭资源     */    public void close() {        if (channel != null) {            channel.disconnect();        }        if (session != null) {            session.disconnect();        }    }    public List<ChannelSftp.LsEntry> getDirList(String path) throws SftpException {        List<ChannelSftp.LsEntry> list = new ArrayList<>();        if (channel != null) {            Vector vv = channel.ls(path);            if (vv == null && vv.size() == 0) {                return list;            } else {                Object[] aa = vv.toArray();                for (int i = 0; i < aa.length; i++) {                    ChannelSftp.LsEntry temp = (ChannelSftp.LsEntry) aa[i];                    list.add(temp);                }            }        }        return list;    }    /**     * 下载文件     *     * @param remotePathFile 远程文件     * @param localPathFile  本地文件[绝对路径]     * @throws SftpException SftpException     * @throws IOException   IOException     */    public void downloadFile(String remotePathFile, String localPathFile) throws SftpException, IOException {        try (FileOutputStream os = new FileOutputStream(new File(localPathFile))) {            if (channel == null)                throw new IOException("sftp server not login");            channel.get(remotePathFile, os);        }    }    /**     * 上传文件     *     * @param remoteFile 远程文件     * @param localFile     * @throws SftpException     * @throws IOException     */    public void uploadFile(String remoteFile, String localFile) throws SftpException, IOException {        try (FileInputStream in = new FileInputStream(new File(localFile))) {            if (channel == null)                throw new IOException("sftp server not login");            channel.put(in, remoteFile);        }    }}