Springboot上傳文件到遠程文件服務器（linux系統）

1.添加依賴

        <!--sftp文件上傳-->
        <dependency>
            <groupId>com.jcraft</groupId>
            <artifactId>jsch</artifactId>
            <version>0.1.54</version>
        </dependency>

2.工具類

package com.nwpusct.csal.common.util;

import com.jcraft.jsch.*;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import java.io.*;

/**
 * @ProjectName SecurityTest
 * @Package com.nwpusct.csal.common.util
 * @Name NdeUploadFileServerUtil
 * @Author HB
 * @Date 2020/5/7 0007 下午 14:10
 * @Version 1.0  上傳文件到文件服務器上（CentOS系統服務器）
 */
@Component
public class FTPUtil {


    private static String host;
    @Value(value = "${ftp-centos.host}")
    public  void setHost(String hostName){
        host = hostName;
    }

    private static Integer port;
    @Value(value = "${ftp-centos.port}")
    public  void setPort(Integer portName) {
        port = portName;
    }

    private static String user;
    @Value(value = "${ftp-centos.user}")
    public  void setUser(String userName) {
      user = userName;
    }

    private static String password;
    @Value(value = "${ftp-centos.password}")
    public  void setPassword(String passwordName) {
        password = passwordName;
    }



    private static String basePath;
    @Value(value = "${ftp-centos.basePath}")
    public  void setBasePath(String basePath) {
        FTPUtil.basePath = basePath;
    }

    public static void sshSftp(byte[] bytes, String fileName) throws Exception {
        Session session = null;
        Channel channel = null;
        JSch jsch = new JSch();
        if (port<= 0) {
            //連接服務器，採用默認端口
            session = jsch.getSession(user, host);
        } else {
            //採用指定的端口連接服務器
            session = jsch.getSession(user, host, port);
        }

        //如果服務器連接不上，則拋出異常
        if (session == null) {
            throw new Exception("session is null");
        }
        //設置登陸主機的密碼
        session.setPassword(password);
        //設置第一次登陸的時候提示，可選值：(ask | yes | no)
        session.setConfig("StrictHostKeyChecking", "no");
        //設置登陸超時時間
        session.connect(30000);
        OutputStream outstream = null;
        try {
            //創建sftp通信通道
            channel = (Channel) session.openChannel("sftp");
            channel.connect(1000);
            ChannelSftp sftp = (ChannelSftp) channel;
            //進入服務器指定的文件夾
            sftp.cd(basePath);
            //列出服務器指定的文件列表
//            Vector v = sftp.ls("*");
//            for(int i=0;i<v.size();i++){
//                System.out.println(v.get(i));
//            }
            //以下代碼實現從本地上傳一個文件到服務器，如果要實現下載，對換以下流就可以了
            outstream = sftp.put(fileName);
            outstream.write(bytes);

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            //關流操作
            if (outstream != null) {
                outstream.flush();
                outstream.close();
            }
            if (session != null) {
                session.disconnect();
            }
            if (channel != null) {
                channel.disconnect();
            }
        }
    }
}

3.遠程服務器配置

#上傳文件到文件服務器的配置
ftp-centos:
  #IP
  host: 121.46.19.23
  #端口
  port: 20623
  user: amind
  password: 123456
  basePath: /home/file

4.接口代碼

package com.nwpusct.csal.controller.uploadfileserver;

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
import com.nwpusct.csal.common.util.FTPUtil;
import com.nwpusct.csal.common.util.RestResult;
import com.nwpusct.csal.common.util.RestResultUtil;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;


/**
 * @ProjectName SecurityTest
 * @Package com.nwpusct.csal.controller.uploadfileserver
 * @Name NdeUploadFileServer
 * @Author HB
 * @Date 2020/5/7 0007 上午 11:07
 * @Version 1.0  上傳文件到文件服務器（CentOS文件服務器）
 */
@RestController
@RequestMapping(value = "/uploadFileServer")
public class NdeUploadFileServerController {


    @ApiOperation(value = "文件上傳到文件服務器")
    @RequestMapping(value = "/uploadFolder", method = RequestMethod.POST)
    public RestResult<Object> uploadFolder(MultipartFile file) {
        try {
            byte[] bytes = file.getBytes();
            FTPUtil.sshSftp(bytes, file.getOriginalFilename());
            return RestResultUtil.ok();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return RestResultUtil.failed();
    }
}