springboot文件上传保存路径的问题

    @PostMapping("/upload")
    public Result upload(MultipartFile[] file, HttpServletRequest request) throws IOException {
        Result result = new Result();        
        String path = request.getServletContext().getRealPath("/public/image/upload");
        System.out.println(file.length);
        for (MultipartFile f : file) {
            String name = f.getOriginalFilename();
            f.transferTo(new File(path+File.separator+name));
            result.getData().add("/public/image/upload/"+name);
        }
        return result;
    }

spring:
  mvc:
    static-path-pattern: /**
  resources:
    static-locations:
    - classpath:/META-INF/resources/
    - classpath:/static
    - classpath:/resources/
    - file:${upload-path}
upload-path: F:/Java/upload/

package com.zcc.springboot_uploadfiles.controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;
@RestController
public class FileUploadController {
    SimpleDateFormat sdf = new SimpleDateFormat("yyy/MM/dd/");
    @PostMapping("/upload")
    public String upload(MultipartFile uploadFile, HttpServletRequest req) {
        String realPath = req.getSession().getServletContext().getRealPath("/uploadFile/");
        String format = sdf.format(new Date());
        String file = realPath + format;
        File folder = new File(realPath + format);
        if(!folder.isDirectory()) {
            folder.mkdirs();
        }
        String oldName = uploadFile.getOriginalFilename();
        String newName = UUID.randomUUID().toString() +
                oldName.substring(oldName.lastIndexOf("."), oldName.length());
        try {
            // 文件保存操作
            uploadFile.transferTo(new File(folder, newName));
            return file;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "上传失败!";
    }
}

//file 这里是我自己想要的文件夹
 String file = "E:\\IDEA01\\学习springboot\\springboot_uploadfiles\\src\\main\\resources\\static\\uploadFile";
 File folder = new File(file);