先测试一下

1. 引入依赖

 <dependency>
            <groupId>com.qiniu</groupId>
            <artifactId>qiniu-java-sdk</artifactId>
            <version>[7.7.0, 7.10.99]</version>
 </dependency>
   <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
   </dependency>

2. application.yaml

oss:
  accessKey:  你自己的访问key
  secretKey:  你自己的key
  bucket: 你自己存储桶

3. java代码

@SpringBootTest
@ConfigurationProperties(prefix = "oss")
public class TestqiNiu {
    private  String  accessKey ;
    private  String  secretKey;
    private  String  bucket ;

    public String getAccessKey() {
        return accessKey;
    }

    public void setAccessKey(String accessKey) {
        this.accessKey = accessKey;
    }

    public String getSecretKey() {
        return secretKey;
    }

    public void setSecretKey(String secretKey) {
        this.secretKey = secretKey;
    }

    public String getBucket() {
        return bucket;
    }

    public void setBucket(String bucket) {
        this.bucket = bucket;
    }

    @Test
    public void testOss() {
        //构造一个带指定 Region 对象的配置类
        Configuration cfg = new Configuration(Region.autoRegion());
        cfg.resumableUploadAPIVersion = Configuration.ResumableUploadAPIVersion.V2;// 指定分片上传版本
//...其他参数参考类注释

        UploadManager uploadManager = new UploadManager(cfg);
//...生成上传凭证，然后准备上传
//        String accessKey = "ZT-HLW35rU8ddVQD3LFrrnZBcyk6_FW";
//        String secretKey = "u4-qTOnnrZFyQihxBrmjRa6UyrYMHLroCx7XjNLdyt";
//        String bucket = "srr";

//默认不指定key的情况下，以文件内容的hash值作为文件名
        String key = null;
        try {
//            byte[] uploadBytes = "hello qiniu cloud".getBytes("utf-8");
//            ByteArrayInputStream byteInputStream=new ByteArrayInputStream(uploadBytes);
            FileInputStream inputStream = new FileInputStream("d:\\01.jpg");

            Auth auth = Auth.create(accessKey, secretKey);
            String upToken = auth.uploadToken(bucket);

            try {
                Response response = uploadManager.put(inputStream,key,upToken,null, null);
                //解析上传成功的结果
                DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
                System.out.println(putRet.key);
                System.out.println(putRet.hash);
            } catch (QiniuException ex) {
                Response r = ex.response;
                System.err.println(r.toString());
                try {
                    System.err.println(r.bodyString());
                } catch (QiniuException ex2) {
                 
                }
            }
        } catch (Exception ex) {
            
        }

    }
}

项目中整合

1. 引入依赖

  <dependency>
            <groupId>com.qiniu</groupId>
            <artifactId>qiniu-java-sdk</artifactId>
            <version>[7.7.0, 7.10.99]</version>
 </dependency>
   <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
   </dependency>

2. application

oss:
  accessKey:  你自己的访问key
  secretKey:  你自己的key
  bucket: srr

4. controller层

@Api("文件上传接口")
@RestController
@RequestMapping("/admin/vod/file")
@CrossOrigin
public class FileUploadController {
    @Autowired
    private FileService fileService;

    @ApiOperation("文件上传")
    @PostMapping("upload")
    public R uploadFile(MultipartFile file){
        String url = fileService.upload(file);
        return  R.ok(url).message("文件文件成功");
    }
}

3.service层
接口

public interface FileService {
    String upload(MultipartFile file);
}

实现类

@Service
@Data
@ConfigurationProperties(prefix = "oss")
public class FileServiceImpl  implements FileService {
    private  String  accessKey ;
    private  String  secretKey;
    private  String  bucket ;

    /**
     * 腾讯云: 文件上传
     * @param file
     * @return
     */

    public String upload1(MultipartFile file) {

        // 1 初始化用户身份信息（secretId, secretKey）。
        String secretId = ConstantPropertiesUtil.ACCESS_KEY_ID;
        String secretKey = ConstantPropertiesUtil.ACCESS_KEY_SECRET;
        COSCredentials cred = new BasicCOSCredentials(secretId, secretKey);
        // 2 设置 bucket 的地域, COS 地域的
        // clientConfig 中包含了设置 region, https(默认 http), 超时, 代理等 set 方法
        Region region = new Region(ConstantPropertiesUtil.END_POINT);
        ClientConfig clientConfig = new ClientConfig(region);
        // 这里建议设置使用 https 协议
        // 从 5.6.54 版本开始，默认使用了 https
        clientConfig.setHttpProtocol(HttpProtocol.https);
        // 3 生成 cos 客户端。
        COSClient cosClient = new COSClient(cred, clientConfig);

      //===================使用流上传====================

// 存储桶的命名格式为 BucketName-APPID，此处填写的存储桶名称必须为此格式
        String bucketName = ConstantPropertiesUtil.BUCKET_NAME;
// 对象键(Key)是对象在存储桶中的唯一标识。
        String key = UUID.randomUUID().toString().replaceAll("-","")+
                file.getOriginalFilename();
//       对上传文件分组,根据当前日期
        String dateTime = new DateTime().toString("yyyy/MM/dd");
        key = dateTime +"/"+key;
        try {
// 这里创建一个 ByteArrayInputStream 来作为示例，实际中这里应该是您要上传的 InputStream 类型的流
        InputStream is = file.getInputStream();


        ObjectMetadata objectMetadata = new ObjectMetadata();
// 上传的流如果能够获取准确的流长度，则推荐一定填写 content-length
// 如果确实没办法获取到，则下面这行可以省略，但同时高级接口也没办法使用分块上传了

        PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, is, objectMetadata);

        PutObjectResult putObjectResult = cosClient.putObject(putObjectRequest);
//        https://srr-1309466898.cos.ap-nanjing.myqcloud.com/2022/01/01.jpg
            String url = "https://srr-1309466898.cos."+ConstantPropertiesUtil.END_POINT+".myqcloud.com/"+key;
            return url;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 七牛云 文件上传
     * @param file
     * @return
     */
    @Override
    public String upload(MultipartFile file) {
        //构造一个带指定 Region 对象的配置类
        Configuration cfg = new Configuration(com.qiniu.storage.Region.autoRegion());
        cfg.resumableUploadAPIVersion = Configuration.ResumableUploadAPIVersion.V2;// 指定分片上传版本
//...其他参数参考类注释

        UploadManager uploadManager = new UploadManager(cfg);
//...生成上传凭证，然后准备上传
//        String accessKey = "ZT-HLW35U8dyDbLnZBcyk6_FW";
//        String secretKey = "u4-qTOnnZFyQUyYMHLroCx7kXjNLdyt";
//        String bucket = "srr";

//默认不指定key的情况下，以文件内容的hash值作为文件名
        String key = UUID.randomUUID().toString().replaceAll("-","")+
                file.getOriginalFilename();
      //       对上传文件分组,根据当前日期
        String dateTime = new DateTime().toString("yyyy/MM/dd");
        key = dateTime +"/"+key;
        try {
//            byte[] uploadBytes = "hello qiniu cloud".getBytes("utf-8");
//            ByteArrayInputStream byteInputStream=new ByteArrayInputStream(uploadBytes);
            InputStream inputStream = file.getInputStream();
            Auth auth = Auth.create(accessKey, secretKey);
            String upToken = auth.uploadToken(bucket);

            try {
                Response response = uploadManager.put(inputStream,key,upToken,null, null);
                //解析上传成功的结果
                DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
                System.out.println(putRet.key);
                System.out.println(putRet.hash);
                String url = "https://qn.srrxixi.fun/"+key;
                return url;
            } catch (QiniuException ex) {
                Response r = ex.response;
                System.err.println(r.toString());
                try {
                    System.err.println(r.bodyString());
                } catch (QiniuException ex2) {
                    //ignore
                }
            }
        } catch (Exception ex) {
            //ignore
        }
        return null;
    }
}