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 {@Overridepublic 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！