阿里云对象存储OSS

一、上传文件到阿里云OSS操作
1.获取ID秘钥


2.使用SDK
参考文档
https://help.aliyun.com/document_detail/32009.html?spm=a2c4g.11186623.6.779.204ec06dp2VO4A

引入依赖

<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>3.10.2</version>
</dependency>

配置

新建一个工具类获取配置中的信息

//当项目已启动，spring接口(InitializingBean)，spring加载之后，执行接口一个方法
@Component
public class ConstantPropertiesUtils implements InitializingBean {

    //读取配置文件内容
    @Value("${aliyun.oss.file.endpoint}")
    private String endPoint;
    @Value("${aliyun.oss.file.keyid}")
    private String keyId;
    @Value("${aliyun.oss.file.keysecret}")
    private String keySecret;
    @Value("${aliyun.oss.file.bucketname}")
    private String bucketName;

    //定义公开静态常量
    public static String END_POINT;
    public static String ACCESS_KEY_ID;
    public static String ACCESS_KEY_SECRET;
    public static String BUCKET_NAME;
    @Override
    public void  afterPropertiesSet() throws Exception{
        END_POINT=endPoint;
        ACCESS_KEY_ID=keyId;
        ACCESS_KEY_SECRET=keySecret;
        BUCKET_NAME=bucketName;
    }
}

service层

@Service
public class OssServiceImpl implements OssService {

    @Override
    public String uploadFileAvatar(MultipartFile file) {
        //通过工具类获取值
        String endpoint = ConstantPropertiesUtils.END_POINT;
        String accessKeyId = ConstantPropertiesUtils.ACCESS_KEY_ID;
        String accessKeySecret =ConstantPropertiesUtils.ACCESS_KEY_SECRET;
        String bucketName=ConstantPropertiesUtils.BUCKET_NAME;

        try {
            //创建OSS实例
            OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

            // 上传文件流。
            InputStream inputStream = file.getInputStream();

            //获取文件名称
            String fileName = file.getOriginalFilename();

            //在文件名称里添加随机的唯一的值
            String uuid = UUID.randomUUID().toString().replaceAll("-","");
            //guit8gif01.jpg
            fileName =uuid+fileName;

            //把文件按照日期分类
            //2020/07/01/guit8gif01.jpg
            //获取当前日期
            String datePath = new DateTime().toString("yyyy/MM/dd");
            fileName=datePath+"/"+fileName;
            //调用oss方法实现上传
            //第二个参数  上传到oss文件路径和文件名称  、aa/bb/1.jpg
            ossClient.putObject(bucketName, fileName, inputStream);

            // 关闭OSSClient。
            ossClient.shutdown();
            //需要把上传到阿里云oss路径手动拼接起来
            //https://kundi-demo.oss-cn-beijing.aliyuncs.com/%E7%86%8A%E5%87%BA%E6%B2%A1.jpg

            String url="https://"+endpoint+"."+bucketName+"/"+fileName;
            return url;
        }catch (Exception e){
            e.printStackTrace();
        }

        return null;
    }
}

controller层

@RestController
@RequestMapping("/oss/fileoss")
public class OssController {
    @Autowired
    private OssService ossService;

    //上传方法
    @PostMapping("/uploadOssFile")
    public R uploadOssFile(@RequestBody MultipartFile file){
       //获取上传文件 MultipartFile
        //返回上传到oss的路径
        String url = ossService.uploadFileAvatar(file);
        return R.ok().data("url",url);
    }
}

测试成功