springboot集成ftp实现文件上传

小灰灰 2022-12-23 11:29 169阅读 0赞

### 文章目录 ###

*   *  1,FileUtil
     *  2,application.properties
     *  3, UploadController
     *  4,ftp查看

## 1,FileUtil ##

package io.renren.modules.oss.utils;
    
    
    import org.apache.commons.net.ftp.FTPClient;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.stereotype.Component;
    import org.springframework.util.StringUtils;
    
    import java.io.IOException;
    import java.io.InputStream;
    import java.text.DateFormat;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    @Component
    public class FileUtil { 
    
      //ftp服务器ip地址
      @Value("${custom.config.file-server.ip}") // 相关配置放在application.properties 中
        String FTP_ADDRESS;
      //端口号
      @Value("${custom.config.file-server.port}")
      Integer FTP_PORT;
      //用户名
      @Value("${custom.config.file-ftp-user}")
      String FTP_USERNAME;
      //密码
      @Value("${custom.config.file-ftp-password}")
      String FTP_PASSWORD;
      //图片路径
      @Value("${custom.config.file-savepath}")
      String FTP_BASEPATH;
    
      //根据当前文件生成 文件夹
      private static String getTimePath() { 
        Date now = new Date();
    
        DateFormat format = new SimpleDateFormat("yyyy/MM/dd/");
        return format.format(now);
      }
    
    
    
      public String upload(InputStream inputStream, String originName) { 
    
        StringBuilder url = new StringBuilder();
    
        FTPClient ftp = new FTPClient();
        ftp.setControlEncoding("GBK");
        try { 
          int reply;
          ftp.connect(FTP_ADDRESS, FTP_PORT);// 连接FTP服务器
          ftp.login(FTP_USERNAME, FTP_PASSWORD);// 登录
          reply = ftp.getReplyCode();
          System.out.println("reply:" + reply);
    
          ftp.enterLocalPassiveMode();//开启被动模式，否则文件上传不成功，也不报错
    
          String timePath = getTimePath();
          String saveDir = FTP_BASEPATH + timePath;
          url.append(saveDir);
    
          ftp.setFileType(FTPClient.BINARY_FILE_TYPE);
          createDir(ftp, saveDir);
          //ftp.makeDirectory(saveDir);
          // ftp.changeWorkingDirectory(FTP_BASEPATH);
          originName= System.currentTimeMillis()+originName.substring(originName.lastIndexOf('.'));
          url.append(originName);
          ftp.storeFile(originName, inputStream);
          inputStream.close();
          ftp.logout();
    
        } catch (IOException e) { 
          throw new RuntimeException("文件上传失败");
        } finally { 
          if (ftp.isConnected()) { 
            try { 
              ftp.disconnect();
            } catch (IOException ioe) { 
            }
          }
        }
    
        return url.toString();
      }
    
      // 创建文件夹，并切换到该文件夹
      // 比如： hello/test
      //最终会切换到test 文件夹返回
      private void createDir(FTPClient client, String path) throws IOException { 
        String[] dirs = path.split("/");
        for (String dir : dirs) { 
          if (StringUtils.isEmpty(dir)) { 
            continue;
          }
          if (!client.changeWorkingDirectory(dir)) { 
            client.makeDirectory(dir);
          }
          client.changeWorkingDirectory(dir);
        }
      }
    
    }

## 2,application.properties ##

#//ftp服务器ip地址
    custom.config.file-server.ip=111.229.65.208
    #String FTP_ADDRESS;
    #//端口号
    custom.config.file-server.port=21
    #Integer FTP_PORT;
    #//用户名
    custom.config.file-ftp-user=root
    #String FTP_USERNAME;
    #//密码
    custom.config.file-ftp-password=123456
    #String FTP_PASSWORD;
    #//图片路径
    custom.config.file-savepath=/upload
    #String FTP_BASEPATH;

## 3, UploadController ##

/** * 上传文件 */
    String fileUrl = fileUtil.upload(file.getInputStream(), file.getOriginalFilename());

得到路径：/upload2020/11/23/1606122890137.jpg

## 4,ftp查看 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNjIzNDQ3_size_16_color_FFFFFF_t_70_pic_center]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNjIzNDQ3_size_16_color_FFFFFF_t_70_pic_center]: /images/20221120/1c91a81a3d7a4e60ba10810390b06a24.png