java文件夹上传，保留文件夹结构

需求: 产品要求可以上传文件夹,文件夹下包含其他文件夹

前端上传文件夹,可以把文件以及所在文件所在文件夹信息传到后端

1.前端设置

需要设置 webkitdirectory enctype = multipart/form-data

<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><title>文件夹上传</title>
</head>
<body>
<form action="/file/folderUpload" method="post" enctype="multipart/form-data"><input type="file" name="multipartFiles" multiple webkitdirectory><button type="submit">上传</button>
</form>
</body>
</html>

2.后端代码

service impl 代码

import cn.hutool.core.util.StrUtil;
import com.example.folder.upload.entity.TreeNodeDTO;
import com.example.folder.upload.service.FileService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;@Slf4j
@Service
public class FileServiceImpl implements FileService {/*** 文件夹上传** @param files*/public List<TreeNodeDTO> folderUpload(MultipartFile[] files) {List<TreeNodeDTO> treeNodeDTOList = new ArrayList<>();if (files == null || files.length == 0) {return new ArrayList<>();}String firstFolder = null;for (MultipartFile file : files) {TreeNodeDTO treeNodeDTO = new TreeNodeDTO();String filePath = file.getOriginalFilename();if (filePath.lastIndexOf(StrUtil.C_SLASH) > 0) {String dirPath = file.getOriginalFilename().substring(0, file.getOriginalFilename().lastIndexOf(StrUtil.C_SLASH));// 设置文件所在目录的全目录路径treeNodeDTO.setFolderFullName(dirPath);String[] split = dirPath.split(StrUtil.SLASH);if (split != null) {String folder = split[split.length - 1];// 文件所在当前目录名称treeNodeDTO.setFolderName(folder);}if (firstFolder == null) {firstFolder = split[0];}}int index = filePath.lastIndexOf(StrUtil.C_SLASH);String fileName = filePath.substring(index + 1);// 文件名称treeNodeDTO.setName(fileName);treeNodeDTOList.add(treeNodeDTO);}// 判断是否存在一级目录List<String> fullFolderList = treeNodeDTOList.stream().map(TreeNodeDTO::getFolderFullName).collect(Collectors.toList());if (firstFolder != null && !fullFolderList.contains(firstFolder)) {TreeNodeDTO treeNodeDTO = new TreeNodeDTO();treeNodeDTO.setFolderName(firstFolder);treeNodeDTO.setFolderFullName(firstFolder);treeNodeDTOList.add(treeNodeDTO);}treeNodeDTOList.forEach(treeNodeDTO -> {log.info("文件名:{},目录全路径:{},当前目录:{}",treeNodeDTO.getName(),treeNodeDTO.getFolderFullName(),treeNodeDTO.getFolderName());});return treeNodeDTOList;}}

service 代码

import com.example.folder.upload.entity.TreeNodeDTO;
import org.springframework.web.multipart.MultipartFile;import java.util.List;public interface FileService {/*** 文件夹上传* @param files*/List<TreeNodeDTO> folderUpload(MultipartFile[] files);
}

3.controller

import com.example.folder.upload.entity.TreeNodeDTO;
import com.example.folder.upload.service.FileService;
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.annotation.Resource;
import java.util.List;@RestController
@RequestMapping("/file")
public class FileController {@Resourceprivate FileService fileService;@RequestMapping(value = "/folderUpload", method = RequestMethod.POST)public List<TreeNodeDTO> uploadFolder(MultipartFile[] multipartFiles) {return fileService.folderUpload(multipartFiles);}
}

4. treeNodeDTO

import lombok.Data;@Data
public class TreeNodeDTO {/*** 文件名*/private String name;/*** 最后一级文件夹名称*/private String folderName;/*** 全路径文件夹*/private String folderFullName;
}

5. github代码地址

GitHub - katriina-tavi/folder-upload: 文件夹上传