<dependencies>
    <dependency>
        <groupId>com.aliyun.oss</groupId>
        <artifactId>aliyun-sdk-oss</artifactId>
    </dependency>
    <!-- 时间工具类 -->
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
    </dependency>
</dependencies>

server:
  port: 8002

spring:
  application:
    name: service-oss
  profiles:
    active: dev

aliyun:
  oss:
    file:
      endpoint: oss-cn-beijing.aliyuncs.com
      keyid: LTAI5tFVf5aGMAoSTiTABbuv
      keysecret: hqIWmRRSrZbMkuDrGJ0PbhTqHPwve1
      bucketname: guli-school-fanxing

@Data
@Component
@ConfigurationProperties(prefix = "aliyun.oss.file")
public class OssConfigUtil {

    private String endpoint;
    private String keyid;
    private String keysecret;
    private String bucketname;

}

public interface FileService {

    public String uploadFileOss(MultipartFile file);
}

@Service
public class FileServiceImpl implements FileService{

    @Autowired
    private OssConfigUtil ossConfigUtil;


    @Override
    public String uploadFileOss(MultipartFile file) {
        OSS ossClient = null;
        try {
            String endpoint = ossConfigUtil.getEndpoint();
            String keyId = ossConfigUtil.getKeyid();
            String keySecret = ossConfigUtil.getKeysecret();
            String bucketName = ossConfigUtil.getBucketname();

            // 创建oss实例
            ossClient = new OSSClientBuilder().build(endpoint, keyId, keySecret);

            // 使用uuid防止同名文件覆盖，使用日期进行分类整理
            String originalFilename = file.getOriginalFilename();
            String fileName = UUID.randomUUID().toString().replace("-", "")+originalFilename;
            String filePath = new DateTime().toString("yyyy/MM/dd");
            String newFileName = filePath+"/"+fileName;
            // 文件上传
            ossClient.putObject(bucketName, newFileName, file.getInputStream());
            // 拼接url
            String url = "https://"+ bucketName +"."+ endpoint +"/"+ newFileName;
            return url;
        } catch (Exception e){
            e.printStackTrace();
            return null;
        } finally {
            // 关闭连接
            if (ossClient != null){
                ossClient.shutdown();
            }
        }
    }
}

@RestController
@RequestMapping("/eduoss/file")
@CrossOrigin
public class FileController {

    @Autowired
    private FileService fileService;

    @PostMapping("upload")
    public R upload(MultipartFile file){
        String url = fileService.uploadFileOss(file);
        // R类是对返回结果的封装
        return R.ok().setData("url", url);
    }
}