上传文件到项目文件夹下

package com.lpssy.tool;

import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.io.IOException;


public class UpFileutil {
    
    public static String UpImg(MultipartFile file) throws IOException {
        if (file.isEmpty()) {
            return "文件不能为空";
        }else {
            //文件原名称
            String fileName = file.getOriginalFilename();
            String[] split = fileName.split("\.");
            String FilesName = split[0];
            String trueFileName = null;
            //文件类型
            String type = fileName.contains(".") ? fileName.substring(fileName.lastIndexOf(".") + 1) : null;
            if (type == null) {
                return "文件类型为空";
            } else if ("gif".equals(type) || "png".equals(type) || "jpg".equals(type)||"GIF".equals(type) || "PNG".equals(type) || "JPG".equals(type)) {
            //自定义的文件名称,避免文件名重复
            trueFileName = "Img-"+ FilesName +"-"+ String.valueOf(System.currentTimeMillis()) + "." + type;
            String filePath = "C:/Users/Axx/Desktop/毕业设计+吴肖/YM/IEquipmentRental/src/main/webapp/WEB-INF/equipmentImg/";
            File fileDir =  new File(filePath);
            File newFile = new File(fileDir.getAbsolutePath() + "/" + trueFileName);
            file.transferTo(newFile);
            }else if("mp4".equals(type)||"MP4".equals(type)){
                //自定义的文件名称,避免文件名重复
                trueFileName = "video-"+ FilesName +"-"+ String.valueOf(System.currentTimeMillis()) + "." + type;
                String filePath = "C:/Users/Axx/Desktop/毕业设计+吴肖/YM/IEquipmentRental/src/main/webapp/WEB-INF/equipmentVideo/";
                File fileDir =  new File(filePath);
                File newFile = new File(fileDir.getAbsolutePath() + "/" + trueFileName);
                file.transferTo(newFile);
            }
            return trueFileName;
        }

    }

}