java循环读取多层文件夹内所有文件

import lombok.Data;

import java.io.Serializable;

/**
 * @Author zyh
 * @Date 2020/7/21 14:33
 */
@Data
public class FileDTO implements Serializable {

    private static final long serialVersionUID = 1L;

    private String name;

    private Long languageId;

}


/**
     * 读取文件夹内所有文件
     * @param path 文件夹路径
     * @return
     */
    private static List<FileDTO> readAllFile(String path,List<FileDTO> fileDTOList){

        File file = new File(path);
        if (!file.exists()) {
            return fileDTOList;
        }
        if (!file.isDirectory()) {
            return fileDTOList;
        }
        String[] tempList = file.list();
        File temp = null;
        for (int i = 0; i < tempList.length; i++) {
            if (path.endsWith(File.separator)) {
                temp = new File(path + tempList[i]);
            } else {
                temp = new File(path + File.separator + tempList[i]);
            }
            if (temp.isFile()) {
                String name = temp.getName();

                FileDTO fileDTO=new FileDTO();
                fileDTO.setName(name);
                fileDTOList.add(fileDTO);
            }
            if (temp.isDirectory()) {
                readAllFile(temp.getAbsolutePath(),fileDTOList);
            }
        }

        return fileDTOList;
    }