springboot 本地项目上传图片到本地，并通过http访问图片

1.在application.yml配置springboot的静态资源的访问路径：

spring:
  #    配置静态资源路径
  web:
    resources:
      static-locations: file:${project.upload-url}
  servlet:
    multipart:
      max-request-size: 50MB
      max-file-size: 50MB
project:
  upload-url: D:/uploadFile/

2.上传代码：

public ApiResult upload(@RequestParam MultipartFile file,ServletRequest request) {
    try {
      if (file.isEmpty()) {
        return ApiResult.fail("请选择要上传的文件");
      }
      System.out.println(file);
      byte[] bytes = file.getBytes();
      String dateString = DateFormatUtils.format(new Date(), "yyyy-MM-dd-hh-mm-ss");
      String filePath =  dateString + "_" + file.getOriginalFilename();
      Path path = Paths.get(project.getUploadUrl() + filePath);
      Files.write(path, bytes);
      Map map = new HashMap<String, String>();
      String allFilePath = request.getScheme() + "://" + request.getServerName()
              + ":" + request.getServerPort()+"/"+filePath;
      map.put("path", project.getUploadUrl());
      map.put("allPath", project.getUploadUrl() + filePath);
      map.put("filePath", filePath);
      map.put("allFilePath", allFilePath);
      return ApiResult.success(map);
    } catch (Exception e) {
      e.printStackTrace();
      return ApiResult.fail("上传失败");
    }
  }

allFilePath就是可以本地访问的http路径，文件被保存到D:/uploadFile/中。