SpringBoot上传文件

上传文件并存储至resource/images目录下

package com.sdut.controller;

import com.sdut.utils.ResV;
import org.springframework.boot.system.ApplicationHome;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
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.util.UUID;

/**
 * @Projectname: Cloud
 * @Filename: UploadController
 * @Author: SpringForest
 * @Data:2022/11/27 20:32
 * @Description:
 * 上传文件并存储至resource/images目录下
 */

@RestController
@RequestMapping("/file")
public class UploadController {
    @RequestMapping("/upload")
    @ResponseBody
    public ResV upload(MultipartFile file, HttpServletRequest request) throws IOException {
        if (file == null || file.isEmpty()) {
            return ResV.error("您传了个寂寞");
        }

        //重命名文件
        String originalFileName = file.getOriginalFilename();
        assert originalFileName != null;
        String ext = "." + originalFileName.split("\\.")[1];
        String uuid = UUID.randomUUID().toString().replace("-", "");
        String fileName = uuid + ext;

        //存储图片至resource/images文件夹下
        ApplicationHome applicationHome = new ApplicationHome(this.getClass());
        //指定文件存储路径
        String pre = applicationHome.getDir().getParentFile().getParentFile().getAbsolutePath() + "/src/main/resources/images/";
        String path = pre + fileName;

        System.out.println(path);
        try {
            file.transferTo(new File(path));
        } catch (Exception e) {
            e.printStackTrace();
            return ResV.error(e.toString());
        }
        return ResV.ok();
    }
}