SpringBoot OSS单文件上传方法

1.第一个依赖的工具类

	@Component
	public class AliyunCloudPriBucketUrlUtil {	
    //阿里云绑定的域名
    @Value("${oss.aliyun-domain}")
    private String aliyunDomain;
    //阿里云路径前缀
    @Value("${oss.aliyun-prefix}")
    private String aliyunPrefix;
    //阿里云EndPoint
    @Value("${oss.aliyun-end-point}")
    private String aliyunEndPoint;
    //阿里云AccessKeyId
    @Value("${oss.aliyun-access-key-id}")
    private String aliyunAccessKeyId;
    //阿里云AccessKeySecret
    @Value("${oss.aliyun-access-key-secret}")
    private String aliyunAccessKeySecret;
    //阿里云BucketName
    @Value("${oss.aliyun-bucket-name}")
    private String aliyunBucketName;
    //阿里云url签名过期时间
    @Value("${oss.expiration}")
    private Integer expiration;

    /**
     * 获取阿里云OSS私有BUCKET的外链（URL加签方式）
     */
    public String getUrlBySign(String fileUrl) {
        OSSClient ossClient = new OSSClient(aliyunEndPoint, aliyunAccessKeyId,
                aliyunAccessKeySecret);
        // 设置URL过期时间为1小时
        Date expirationDate = new Date(new Date().getTime() + expiration * 1000);
        String subStr = aliyunDomain + "/";
        String urlKey = fileUrl.substring(subStr.length());
        GeneratePresignedUrlRequest generatePresignedUrlRequest ;
        generatePresignedUrlRequest = new GeneratePresignedUrlRequest(aliyunBucketName, urlKey);
        generatePresignedUrlRequest.setExpiration(expirationDate);
        URL url = ossClient.generatePresignedUrl(generatePresignedUrlRequest);
        return url.toString();
    }
}

2.第二个依赖的工具类

@Component
public class OSSFactory {
    @Autowired
    private CloudStorageConfig config;

    public CloudStorageService build() {
        if (config.getType().equals(OSSConstant.TYPE_QINIU)) {
            return new QiniuCloudStorageService(config);
        } else if (config.getType().equals(OSSConstant.TYPE_ALIYUN)) {
            return new AliyunCloudStorageService(config);
        } else if (config.getType().equals(OSSConstant.TYPE_QCLOUD)) {
            return new QcloudCloudStorageService(config);
        }
        return null;
    }

}

3.第三个依赖的配置类

public class OSSConstant {
    //类型 1：七牛  2：阿里云  3：腾讯云
    public final static Integer TYPE_QINIU = 1;
    pub