springboot上传文件至项目当前路径下的文件夹

关键代码，之后会分享完整代码到gitee

默认上传文件到文件夹

 /** * 默认上传文件到文件夹 * * @param folder 默认文件夹 * @param file 上传的文件 * @return */
    private String myfileUp(String folder, MultipartFile file, String substring) { 
     
        LocalDate today = LocalDate.now();
        //项目当前路径
        //String filePath = ClassUtils.getDefaultClassLoader().getResource("").getPath() + "static/";
        //String filePath = ClassUtils.getDefaultClassLoader().getResource("").getPath();
        //String filePath = "/usr/local/bison/product-service/static";
        ApplicationHome home = new ApplicationHome(getClass());
        String filePath = home.getSource().getParentFile().toString() + "/static/";
        System.out.println("filePath" + "==================" + filePath);

        //按年月保存文件夹
        String saveName = File.separator + today.getYear() + "." + today.getMonthValue() + File.separator;

        String fileCode = "";

        if (substring.equals("")) { 
     
            fileCode = UUID.randomUUID().toString().trim().replaceAll("-", "");
        } else { 
     
            //文件名称
            fileCode = UUID.randomUUID().toString().trim().replaceAll("-", "") + "_" + substring;
        }
        //文件保存
        String returnName = FileUpload.fileUp(file, filePath + folder + saveName, fileCode);
        saveName = folder + saveName + returnName;
        logger.warn("This file has been uploaded: " + saveName);
        return saveName;
    }

上传文件类

/** * @version 1.0 * @Author peter * @Date 19-4-3 上午10:41 * @Description //上传文件 * @Param * @return **/
public class FileUpload { 
     

    /** * @param file //文件对象 * @param filePath //上传路径 * @param fileName //文件名 * @return 文件名 */
    public static String fileUp(MultipartFile file, String filePath, String fileName) { 
     
        String extName = ""; // 扩展名格式：
        try { 
     
            if (file.getOriginalFilename().lastIndexOf(".") >= 0) { 
     
                extName = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
            }
            copyFile(file.getInputStream(), filePath, fileName + extName).replaceAll("-", "");
        } catch (IOException e) { 
     
            System.out.println(e);
        }
        return fileName + extName;
    }

    /** * 写文件到当前目录的upload目录中 * * @param in * @param dir * @param realName * @throws IOException */
    private static String copyFile(InputStream in, String dir, String realName)
            throws IOException { 
     
        //没有就创建新文件夹不然下面文件拷贝会报异常
        File file = new File(dir, realName);
        if (!file.exists()) { 
     
            if (!file.getParentFile().exists()) { 
     
                file.getParentFile().mkdirs();
            }
            file.createNewFile();
        }
        //org.apache.commons.io 下的FileUtils（很强大可以操作一下）
        //文件拷贝
        FileUtils.copyInputStreamToFile(in, file);
        return realName;
    }
}