spring-boot上传文件最佳解决办法

很多人使用springboot上传文件的时候最烦的就是上传路径的问题下面的方法最便捷最易懂

在配置文件中配置如下

xcloud:
  #uploadPath: D:/var/uploaded_files/
  uploadPath: C:/Users/renke/apache-tomcat-8.5.24/upload/
media:
  save:
    urlprefix: https://www.xxxxx.com

编写上传路径配置类

@Component
@ConfigurationProperties(prefix="xcloud")
public class UploadConfig {
   //上传路径
   private String uploadPath;

   public String getUploadPath() {
      return uploadPath;
   }

   public void setUploadPath(String uploadPath) {
      this.uploadPath = uploadPath;
   }
}

上传文件方法注入

@Autowired
UploadConfig uploadConfig;

@Value("${media.save.urlprefix}")
private String urlprefix;

/**
 * 本地上传文件接口
 * @param file
 * @param request
 * @return
 * @throws IOException
 */
@CrossOrigin
@PostMapping("/{account}/upload.json")
public Response upload(@RequestParam("file") MultipartFile[] file,@PathVariable("account") String account,
                       HttpServletRequest request) throws IOException {
    log.info("图片上传开始.....");
    if (null != file && file.length > 0) {
        //遍历并保存文件
        for (MultipartFile files : file) {
            if (file != null) {
                //取得当前上传文件的文件名称
                String fileName = account + files.getOriginalFilename();
                //如果名称不为“”,说明该文件存在，否则说明该文件不存在
                //本地上传图片方式
                fileName = FileUtil.renameToUUID(fileName);
                try {
                    FileUtil.uploadFile(files.getBytes(), uploadConfig.getUploadPath(), fileName);
                } catch (Exception e) {
                    return Response.fail("异常");
                }
                    log.info(">>>>>>>>>>>>>本地上传图片路径  {}", "/files/" + fileName);
                    return Response.success().put("fileName", urlprefix + "/files/" + fileName);
            }
        }
    } else {
        return Response.fail("上传文件不能为空");
    }
    return Response.success();
}

然后新建一个WebConfigurer配置类继承WebMvcConfigurerAdapter

@Slf4j
@Component
class WebConfigurer extends WebMvcConfigurerAdapter {
   @Autowired
   UploadConfig uploadConfig;

   @Override
   public void addResourceHandlers(ResourceHandlerRegistry registry) {
      registry.addResourceHandler("/files/**").addResourceLocations("file:///"+uploadConfig.getUploadPath());
   }
}

这样上传的文件就可以保存在你配置文件中设置的路径中 访问加上前缀就可以指向本地保存路径了 注意一下 有拦截器或者权限拦截的业务时 记得把/filse路径放行才能访问

技术有限 如有疑问 欢迎指导

spring-boot上传文件最佳解决办法

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