SpringBoot结合commons-fileupload上传文件

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首先pom文件引入相关依赖:

<dependency>
     <groupId>commons-fileupload</groupId>
     <artifactId>commons-fileupload</artifactId>
     <version>1.3.1</version>
 </dependency>
 <dependency>
     <groupId>commons-io</groupId>
     <artifactId>commons-io</artifactId>
     <version>2.4</version>
 </dependency>

具体代码:

    //获取文件存储路径
    @Value("${filePath}")
    private String filePath;

    @RequestMapping(value ="/fileUp", method = RequestMethod.POST)
    @ResponseBody
    public void fileUploadOne(@RequestParam("file") MultipartFile file,@RequestParam("fileType") String fileType) {
        // 获得原始文件名+格式
        String fileName = file.getOriginalFilename();
        //截取文件名
        String fname = fileName.substring(0, fileName.lastIndexOf("."));
        //截取文件格式
        String format = fileName.substring(fileName.lastIndexOf(".") + 1);
        //获取当前时间(精确到毫秒)
        long MS = System.currentTimeMillis();
        String timeMS = String.valueOf(MS);
        //原文件名+当前时间戳作为新文件名
        String videoName = fname + "_" + timeMS + "." + format;
        String filelocalPath = "";
        char pathChar = upfilePath.charAt(upfilePath.length() - 1);
        Date date = new Date();
        String dateOne = new SimpleDateFormat("yyyy/MM/dd/").format(date);
        if (pathChar == '/') {
            filelocalPath = upfilePath + dateOne;
        } else {
            filelocalPath = upfilePath + "/" + dateOne;
        }
        File f = new File(filelocalPath);
        if (!f.exists())
            f.mkdirs();
        if (!file.isEmpty()) {
            try {
                FileOutputStream fos = new FileOutputStream(filelocalPath + videoName);
                InputStream in = file.getInputStream();
                //InputStream in = request.getInputStream();
                byte[] bytes = new byte[1024];
                int len = 0;
                while ((len = in.read(bytes)) != -1) {
                    fos.write(bytes, 0, len);
                }
                fos.close();
                in.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

    }

别忘了还需要在Application启动类中设置上传文件的大小:

 //获取配置的上传文件的系统临时文件夹路径
   @Value("${tempfilePath}")
    private String tempfilePath;

   @Bean
    public MultipartConfigElement multipartConfigElement() {
        MultipartConfigFactory factory = new MultipartConfigFactory();
        //允许上传的文件最大值
        factory.setMaxFileSize("100MB"); 
        /// 设置总上传数据总大小
        factory.setMaxRequestSize("1024MB");
        //设置临时文件路径，以防长时间不操作后删除临时文件导致报错
        File f = new File(tempfilePath);
        if (!f.exists())
            f.mkdirs();
        factory.setLocation(tempfilePath);
        return factory.createMultipartConfig();

    }