java将文件sftp发送到远程文件服务器，针对ftp无法使用

java将文件发送到远程文件服务器并将niginx路径返回

public static String saveToMoveTool(MultipartFile multipartFile) throws Exception {
    
    
		//创建一个文件路径在项目本地路径
        File file = new File("/static/img/");
        FileUtils.copyInputStreamToFile(multipartFile.getInputStream(), file);
        //打开服务器会话
        Session s = getSession("10.10.10.10", 22, "root", "password");
        //文件保存的服务器位置
        String filePath = "/opt/project/imgs/";
        //自己的nginx路径，用于返回文件url
        String nginxPath = "http://10.10.10.10:1234/";
        //获取会话通道
        Channel channel = getChannel(s);
        //转换通道类型
        ChannelSftp sftp = (ChannelSftp) channel;
        //上传文件到指定目录
        String upload = uploadFile(sftp, filePath, file);
        //关闭通道
        closeAll(sftp, channel, s);
        return nginxPath + upload;
    }

getSession()

    public static Session getSession(String host, int port, String username, final String password) {
    
    
        Session session = null;
        try {
    
    
            JSch jsch = new JSch();
            jsch.getSession(username, host, port);
            session = jsch.getSession(username, host, port);
            session.setPassword(password);
            Properties sshConfig = new Properties();
            //关闭严格密钥检查
            sshConfig.put("StrictHostKeyChecking", "no");
            session.setConfig(sshConfig);
            session.connect();
            LOG.info("连接成功！");
        } catch (JSchException e) {
    
    
            LOG.info("连接失败！", e);
        }
        return session;
    }

getChannel()

    public static Channel getChannel(Session session) {
    
    
        Channel channel = null;
        try {
    
    
            channel = session.openChannel("sftp");
            channel.connect();
            LOG.info("获取通道成功！");
        } catch (JSchException e) {
    
    
            LOG.info("获取通道失败！", e);
        }
        return channel;
    }

uploadFile()

    public static String uploadFile(ChannelSftp sftp, String dir, File file) {
    
    
        String result = "";
        try {
    
    
            sftp.cd(dir);; 
            if (file != null) {
    
    
            	//NetImgSaveUtil.generateShortUuid()是获取一个八位UUID的方法，可替换成自己的
                String name = NetImgSaveUtil.generateShortUuid();
                sftp.put(new FileInputStream(file), name);
                result = name;
            } else {
    
    
                result = "文件为空！不能上传！";
            }
        } catch (Exception e) {
    
    
            LOG.info("上传失败！", e);
            result = "上传失败！";
        }
        return result;
    }

closeAll()

public static void closeAll(ChannelSftp sftp, Channel channel, Session session) {
    
    
        try {
    
    
            closeChannel(sftp);
            closeChannel(channel);
            closeSession(session);
        } catch (Exception e) {
    
    
            LOG.info("所有流已关闭！", e);
        }
    }

*Nginx代理

server {
    
    
        listen 2350;
        server_name 10.101.6.3 ;
        location ~ .*\.(png|jpg)$ {
    
    
            expires 24h;
            root /opt/project/imgs;#指定图片存放路径
        }
}

./sbin/nginx -s reload 刷新配置