SpringBoot实现图片上传及本地访问

public class Constant {
    public static final String ITEM_PICTURE_PATH = "D:\\Tools\\";
}

    @PostMapping("/importPicture")
    public MsgEntity importPicture(@RequestParam("file") MultipartFile file, @RequestParam("id") String id) throws FileNotFoundException {
        //获得文件的后缀
        String filename = UUID.randomUUID() + Objects.requireNonNull(file.getOriginalFilename()).substring(file.getOriginalFilename().lastIndexOf("."));
        //获取文件存储路径
        File filepath = new File(Constant.ITEM_PICTURE_PATH + filename);
        String url = String.valueOf(filepath);
        try {
            //存文件
            file.transferTo(filepath);
        } catch (IOException e) {
            e.printStackTrace();
        }
        itemService.setPictureUrl("http://localhost:8080/temp-image/" + filename, id);
        return new MsgEntity("SUCCESS", "200", url);
    }

# 配置上传图片的路径和访问图片图片的路径
upload.file.location=file:D:/Tools/
upload.file.path =/temp-image/**

@Configuration
public class MyWebAppConfigurer implements WebMvcConfigurer {
    @Value("${upload.file.location}")
    private String fileLocation;
    @Value("${upload.file.path}")
    private String filePath;

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
		//注册配置类，使用addResourceHandlers方法，将本地路径fileLocation映射到filePath路由上。
        registry.addResourceHandler(filePath).addResourceLocations(fileLocation);
        WebMvcConfigurer.super.addResourceHandlers(registry);
    }
}