SpringBoot学习——七牛云上传删除图片

        <!-- 七牛云 -->
        <dependency>
            <groupId>com.qiniu</groupId>
            <artifactId>qiniu-java-sdk</artifactId>
            <version>[7.5.0, 7.5.99]</version>
        </dependency>
        <!--Gosn依赖-->
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.6</version>
        </dependency>

# 七牛云
oss:
  qiniu:
    domain: 填入你的访问域名 # 访问域名(默认使用七牛云测试域名)
    accessKey: 填入你的公钥 # 公钥
    secretKey: 填入你的私钥 # 私钥
    bucketName: 填入你的存储空间名  #存储空间名称

@Configuration
public class QiNiuYunConfig {
    /**
     * 七牛域名domain
     */
    @Value("${oss.qiniu.domain}")
    private String qiniuDomain;
    /**
     * 七牛ACCESS_KEY
     */
    @Value("${oss.qiniu.accessKey}")
    private String qiniuAccessKey;
    /**
     * 七牛SECRET_KEY
     */
    @Value("${oss.qiniu.secretKey}")
    private String qiniuSecretKey;
    /**
     * 七牛空间名
     */
    @Value("${oss.qiniu.bucketName}")
    private String qiniuBucketName;
    protected static Logger logger = LoggerFactory.getLogger(QiNiuYunConfig.class);
    public String uploadPhoto(String filename, FileInputStream file) {
        // 构造一个带指定Region对象的配置类，注意后面的Region个地区不一样的
        Configuration cfg = new Configuration(Region.region2());
        cfg.useHttpsDomains = false;
        UploadManager uploadManager = new UploadManager(cfg);
        // 生成上传凭证，然后准备上传
        Auth auth = Auth.create(qiniuAccessKey, qiniuSecretKey);
        String upToken = auth.uploadToken(qiniuBucketName);
        try {
            Response response = uploadManager.put(file, filename, upToken, null, null);
            // 解析上传成功的结果
            DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
            // 这个returnPath是获得到的外链地址,通过这个地址可以直接打开图片
            return "http://"+qiniuDomain+"/"+putRet.key;
        } catch (QiniuException ex) {
            Response r = ex.response;
            logger.error(r.toString());
            System.err.println();
            try {
                logger.error(r.bodyString());
            } catch (QiniuException ex2) {
                r = ex2.response;
                logger.error(r.toString());
            }
        }
        return "";
    }
    public boolean deletePhoto(String fileName) {
        Configuration configuration = new Configuration(Region.region2());
        Auth auth = Auth.create(qiniuAccessKey, qiniuSecretKey);
        BucketManager bucketManager = new BucketManager(auth, configuration);
        try {
            if (fileName != null) {
                bucketManager.delete(qiniuBucketName, fileName);
                return true;
            }
        } catch (QiniuException ex) {
            //如果遇到异常，说明删除失败
            logger.error(String.valueOf(ex.code()));
            logger.error(ex.response.toString());
        }
        return false;
    }
}

    @Autowired
    protected static final Logger logger = LoggerFactory.getLogger(QrCodeController.class);
    private QiNiuYunConfig qiNiuYunConfig;
    @Autowired
    private IQrCodeService iQrCodeService;
  @PostMapping("qrCode/insert")
    @ApiOperation("上传二维码图片")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "photoName", value = "图片名称", dataTypeClass = String.class)
    })
    public RespBean insert(@RequestParam String photoName, @RequestPart("file") MultipartFile file) {
        QrCode qrCode = new QrCode();
        qrCode.setPhotoName(photoName);
        // 获取文件名
        //String fileName = file.getOriginalFilename();
        // 生成随机的图片名 （这个案例中没使用）
        //String photoName = UUID.randomUUID() + "-" +fileName;
        if (!file.isEmpty()) {
            try {
                FileInputStream inputStream = (FileInputStream) file.getInputStream();
                // 这里接收 七牛云返回的 图片地址
                String path = iQiNiuYunService.uploadPhoto(photoName, inputStream);
                qrCode.setPhotoAddress(path);
                // 将二维码实体qrcode 插入到mysql数据库中
                if (iQrCodeService.insert(qrCode)) {
                    logger.info("上传成功！");
                    return RespBean.ok("上传成功！");
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return RespBean.error("上传失败！");
    }
    @DeleteMapping("qrCode/delete")
    @ApiOperation("根据照片名删除图片")
    @ApiImplicitParam(name = "photoName", value = "图片名称",dataTypeClass = String.class)
    public RespBean delete(@RequestParam String photoName){
        if (iQiNiuYunService.deletePhoto(photoName)&&iQrCodeService.delete(photoName)){
            return RespBean.ok("删除成功");
        }
        return RespBean.ok("删除失败,未找到该图片！");
    }