jcraft SFTP 文件上传

一 依赖

    <properties>
        <jsch.version>0.1.54</jsch.version>
    </properties>

 

        <dependency>
            <groupId>com.jcraft</groupId>
            <artifactId>jsch</artifactId>
            <version>${jsch.version}</version>
        </dependency>

二 工具类

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package com.mangoubiubiu.utils;   import com.jcraft.jsch.*;   import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.Properties;   public class SFTPTransFile {     private static final String sourceDir = "D:\\hhh.txt";//传输的源端目录     private static final String destDir = "/apps/images";//传输的目的端目录     private static final String host = "192.168.56.12";//目的端的IP地址     private static final int port = 22; //目的端的端口号     private static final String userName = "root";//目的端的用户名     private static final String passWord = "root";//目的端的密码       public static void main(String[] args) throws Exception {         //连接目的端         ChannelSftp sftp = connect(host, port, userName, passWord);         //创建目录      //   mkdir(destDir, sftp);         //文件上传        // uploadFile(new File(sourceDir), destDir, sftp);         //文件重命名         //renameFile(destDir,"look.txt","xl.txt",sftp);         //文件下载         //downloadFile(destDir,"xl.txt","F:\\xl.txt",sftp);         //删除文件         //deleteFile(destDir,"xl.txt",sftp);     }       //连接目的端     public static ChannelSftp connect(String host, int port, String userName, String passWord) {         ChannelSftp sftp = null;         try {             JSch jsch = new JSch();             jsch.getSession(userName, host, port);             Session sshSession = jsch.getSession(userName, host, port);             System.out.println("Session创建成功");             sshSession.setPassword(passWord);             System.out.println("密码输入成功");             Properties sshConfig = new Properties();             sshConfig.put("StrictHostKeyChecking", "no");             System.out.println("链接参数设置成功");             sshSession.setConfig(sshConfig);             sshSession.connect();             System.out.println("Session已连接");             Channel channel = sshSession.openChannel("sftp");             channel.connect();             sftp = (ChannelSftp) channel;             System.out.println("连接到主机" + host + ".");         } catch (Exception e) {             e.printStackTrace();         }         return sftp;     }       //文件上传     public static void uploadFile(FileInputStream file, String destDir, ChannelSftp sftp) {         try {             sftp.cd(destDir);             //  sftp.put(new FileInputStream(file), file.getName());             System.out.println("文件上传成功");         } catch (Exception e) {             System.out.println("文件上传失败");         }     }       //创建目录     public static void mkdir(String destDir, ChannelSftp sftp) {         try {             sftp.cd(destDir);             System.out.println("文件夹创建成功: " + destDir);         } catch (Exception e) {             System.out.println("进入目录失败,创建目录: " + destDir);             //创建目录             String[] dirs = destDir.split("/");             String tempPath = "";             for (String dir : dirs) {                 if (dir == null || dir.equals("")) {                     continue;                 }                 tempPath += "/" + dir;                 try {                     System.out.println("进入目录[" + tempPath + "]");                     sftp.cd(tempPath);                 } catch (SftpException ex) {                     System.out.println("进入目录失败,创建目录[" + tempPath + "]");                     try {                         sftp.mkdir(tempPath);                         sftp.cd(tempPath);                         System.out.println("进入目录[" + tempPath + "]");                     } catch (SftpException exc) {                         System.out.println("进入目录失败,创建目录[" + tempPath + "]");                     }                 }             }         }     }       //文件重命名     public static void renameFile(String destDir, String oldName, String newName, ChannelSftp sftp) {         try {             sftp.cd(destDir);             sftp.rename(oldName, newName);             System.out.println("文件重命名成功");         } catch (Exception e) {             System.out.println("文件重命名失败");         }     }       //文件下载     public static void downloadFile(String destDir, String downloadFile, String saveFile, ChannelSftp sftp) {         try {             sftp.cd(destDir);             File file = new File(saveFile);             sftp.get(downloadFile, new FileOutputStream(file));             System.out.println("文件下载成功");         } catch (Exception e) {             System.out.println("文件下载失败");         }     }       //文件删除     public static void deleteFile(String destDir, String deleteFile, ChannelSftp sftp) {         try {             sftp.cd(destDir);             sftp.rm(deleteFile);             System.out.println("文件删除成功");         } catch (Exception e) {             System.out.println("文件删除失败");         }     } }

　　

三 业务代码

package com.mangoubiubiu.service.impl;

import cn.hutool.core.io.FileTypeUtil;
import com.jcraft.jsch.ChannelSftp;
import com.mangoubiubiu.entities.Student;
import com.mangoubiubiu.mapper.StudentMapper;
import com.mangoubiubiu.service.StudentService;
import com.mangoubiubiu.utils.SFTPTransFile;
import com.mangoubiubiu.vo.StudentQry;
import lombok.extern.slf4j.Slf4j;
import org.joda.time.DateTime;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import java.util.Queue;
import java.util.UUID;

@Service
@Slf4j
public class StudentServiceImpl implements StudentService {
    @Autowired
    private StudentMapper studentMapper;

    private static final String sourceDir = "D:\\hhh.txt";//传输的源端目录
    private static final String destDir = "/apps/images";//传输的目的端目录
    private static final String host = "192.168.56.12";//目的端的IP地址
    private static final int port = 22; //目的端的端口号
    private static final String userName = "root";//目的端的用户名
    private static final String passWord = "root";//目的端的密码

    @Override
    public Student getStudent(String id) {
        return studentMapper.getStuById(id);
    }

    @Override
    public List<Student> getAllStudent(StudentQry qry) {
        return studentMapper.findAll(qry);
    }

    @Override
    public String uploadFile(MultipartFile file)  {
        Long startCurrentTimes=System.currentTimeMillis();
        InputStream inputStream=null;
        String fileName="";
        try {
           String fileType=FileTypeUtil.getType(file.getInputStream());
            if("jpg".equals(fileType) || "png".equals(fileType) || "jpeg".equals(fileType) || "gif".equals(fileType) ){
                log.info("文件类型========={}",fileType);
                // 上传文件流。
                inputStream = file.getInputStream();
                //获取文件名称
                fileName=file.getOriginalFilename();
                //在文件中添加随机值 uuid
                String uuid=   UUID.randomUUID().toString().replaceAll("-","");
                fileName=uuid+fileName;
                ChannelSftp sftp = SFTPTransFile.connect(host, port, userName, passWord);
                sftp.cd(destDir);
                sftp.put(inputStream,fileName);
            }else{
                log.info("文件上传失败，不支持的文件类型========={}",fileType);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            try {
                if(inputStream!=null){
                    inputStream.close();
                }
            }catch (IOException e){

            }
        }
        Long endCurrentTimes=System.currentTimeMillis();
        log.info("文件上传成功,耗时{}ms",endCurrentTimes-startCurrentTimes);
        return fileName;
    }

    @Override
    public List<Student> getAllStudentT(StudentQry qry) {
        return studentMapper.findStuAllAndRewardOrPunish(qry);
    }


}