Springboot项目中如何自定义工具类来实现后台上传图片的操作

小编给大家分享一下Springboot项目中如何自定义工具类来实现后台上传图片的操作，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

1.先配置启动类

继承WebMvcConfigurer

重写方法

@SpringBootApplication//@MapperScan("com.example.demo.Mapper")public class DemoApplication implements WebMvcConfigurer {    public static void main(String[] args) {        SpringApplication.run(DemoApplication.class, args);    }    @Override    public void addResourceHandlers(ResourceHandlerRegistry registry){        /*            addResoureHandler：指的是对外暴露的访问路径            addResourceLocations：指的是内部文件放置的目录        */        registry.addResourceHandler("/imctemp-rainy/**").addResourceLocations("file:D:/image");    }}

2.添加一个UploadUtil文件上传工具类

public class UploadUtil {    //源文件名    private String originalFilename;    //源文件后缀名    private String suffix;    //存入数据库里的tomcat虚拟路径    private String dbPath;    //文件大小    private long size;    //实际存储路径    private String realPath;    /**     * 文件上传工具类     * @param attach     * @param request     * @param uploader 文件上传者     * @return     */    public boolean doUpload(MultipartFile attach, HttpServletRequest request, String uploader){        if(!attach.isEmpty()){            originalFilename = attach.getOriginalFilename();            System.out.println("==>上传的文件名："+originalFilename);            suffix = originalFilename.substring(originalFilename.lastIndexOf("."));            System.out.println("==>上传的文件后缀名："+suffix);            size = attach.getSize();            System.out.println("==>上传文件的大小："+size);            String currentFilename = System.currentTimeMillis()+ UUID.randomUUID().toString() + suffix;            System.out.println("==>存储的上传文件名："+currentFilename);            realPath = "D:/image/"+uploader ;            System.out.println("==>上传文件保存的真实路径："+realPath);            File targetFile = new File(realPath, currentFilename);            if(!targetFile.exists()){                targetFile.mkdirs();            }            try{                attach.transferTo(targetFile);            }catch (Exception e){                e.printStackTrace();                return false;            }            realPath = realPath + "/" + currentFilename;//            dbPath =  request.getContextPath() + "/" + uploader + "/" + new SimpleDateFormat("yyyy-MM-dd").format(new Date()) + "/" + currentFilename;            dbPath = "/" + uploader + "/" + currentFilename;            return true;        }else{            return false;        }    }    public String getUploadFile(){        return dbPath;    }}

其中关于路径都需要改成自己存放图片的路径

3.Controller层

@RestControllerpublic class UserPhotoController {    @RequestMapping(value = "/upload",method = RequestMethod.POST)    @ResponseBody    public String testUpload(@RequestParam("file") MultipartFile file, HttpServletRequest request) {        UploadUtil uploadUtil = new UploadUtil();        String fileName = "";        if (uploadUtil.doUpload(file, request, "uploadImg")) {            fileName = uploadUtil.getUploadFile();        } else {            fileName = "file";        }        return fileName;    }}

完成。

以上是"Springboot项目中如何自定义工具类来实现后台上传图片的操作"这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注行业资讯频道！