java上传文件到指定目录 java上传文件 multipartfile

Java 基于spring框架 使用 MultipartFile 及 File实现文件上传功能

Controller

/**
     * 上传文件
     */
    @RequestMapping("uploadFile")
    public String uploadFile(@RequestParam("file") MultipartFile file) {
        if (file.isEmpty()){
            logger.info("文件不存在");
            return "文件不存在";
        }
        String stase = UploadFile.UploadFile(file);
        return stase;
    }

Service

/**
 * 文件上传实现逻辑
 */
@Service
public class UploadFileImpl implements UploadFile {

    private static Logger logger = Logger.getLogger(UploadFileImpl.class);
    private static String StatesSuccess = "200";
    private static String StatesFailed = "500";

    @Override
    public String UploadFile(MultipartFile file) {
        logger.info("上传文件开始");
        String originalFilename = file.getOriginalFilename();
        String contentType = file.getContentType();
        String name = file.getName();
        logger.info("文件名为："+originalFilename+"类型为："+contentType);
        Resource resource = file.getResource();
        //重新定义文件名
        long l = System.currentTimeMillis();
        //重新修正文件名
        String fileNames = l + "." + originalFilename.substring(originalFilename.lastIndexOf(".") + 1);
        //定义保存路径
        String uploadDesk = "F:\\sc\\cscs\\";
        File file1 = new File(uploadDesk + fileNames);
        if (!file1.getParentFile().exists()) {
            file1.getParentFile().mkdirs();
        }
        try {
            file.transferTo(file1);
            logger.info("文件上传成功");
            return StatesSuccess;
        } catch (IOException e) {
            e.printStackTrace();
            logger.error("文件上传失败");
            return StatesFailed;
        }
    }
}