springboot实现上传文件接口(简单版)

使用springboot实现一个最简单版本的上传文件接口

private String uploadPath = "C:/imageFiles";


@RequestMapping(value = "/upload", method = RequestMethod.POST)
    private Result upload( @RequestParam("modelName") String modelName,
                           @RequestParam("file") MultipartFile multipartFile) {
        try {            
            StrBuilder sb = new StrBuilder();
            sb = sb.append(uploadPath).append(modelName);
            FileUtil.mkdir(sb.toString());
            String newFileName = System.currentTimeMillis() + multipartFile.getOriginalFilename();
            sb = sb.append("/").append(newFileName);
            FileOutputStream fileOutputStream = new FileOutputStream(sb.toString());
            fileOutputStream.write(multipartFile.getBytes());
            fileOutputStream.close();
            return new Result().success("/" + modelName + "/" + newFileName);
        } catch (IOException e) {
            e.printStackTrace();
            log.info("上传文件IO异常");
            return new Result().error("上传文件IO异常");
        }
    }

上传完成之后需要访问，可以使用springmvc静态资源代理(线上项目不推荐，建议使用nginx静态资源代理)

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {


    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
// 本地资源映射
        registry.addResourceHandler("/images/**").addResourceLocations("file:" + "C:/imageFiles/");
    }
}

尝试请求一下

成功返回！