需要注意,要配置扫描, 然后使用不要new出来,用@Autowired去注入进去…

  1. application-aliyun.properties

oss配置

aliyun.oss.endpoint=http://oss-cn-shanghai.aliyuncs.com
aliyun.oss.accessKeyId=#######
aliyun.oss.accessKeySecret=######
aliyun.oss.bucketName=######

  1. OssClientConfig
    @PropertySource(value = “classpath:application-aliyun.properties”)
    @Configuration
    public class OssClientConfig {
@Value("${aliyun.oss.endpoint}")
 private String endpoint;

 @Value("${aliyun.oss.accessKeyId}")
 private String accessKeyId;

 @Value("${aliyun.oss.accessKeySecret}")
 private String accessKeySecret;

 @Bean
 public OSSClient ossClient() {
     OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
     return ossClient;
 }

}

  1. OssClientUtils
    @Component
    @PropertySource(value = “classpath:application-aliyun.properties”)
    public class OssClientUtils {
@Value("${aliyun.oss.bucketName}")
 private String bucketName;

 @Autowired
 private OSSClient ossClient;

 /**
  * oss 存储,使用默认的随机生成的文件名称 作为 objectName
  *
  * @param file 文件
  * @return
  */
 public String uploadFile(MultipartFile file) throws Exception {
     String originalFilename = file.getOriginalFilename();
     String ext = originalFilename.substring(originalFilename.lastIndexOf("."));
     String newFileName = UUID.randomUUID().toString().substring(0, 10) + ext;
     return this.uploadFile(newFileName, file);
 }

 /**
  * oss 存储
  *
  * @param objectName 上传文件名称
  * @param file       文件
  * @return
  */
 public String uploadFile(String objectName, MultipartFile file) throws Exception {
     objectName = this.genFilePath() + objectName;
     ossClient.putObject(bucketName, objectName, file.getInputStream());
     return this.getUrl(objectName);
 }

 /**
  * oss 存储
  *
  * @param objectName 上传文件名称
  * @param file       文件
  * @return
  */
 public String uploadFile(String objectName, File file) {
     objectName = this.genFilePath() + objectName;
     ossClient.putObject(bucketName, objectName, file);
     return this.getUrl(objectName);
 }

 /**
  * 根据文件名，获取文件地址
  *
  * @param objectName 文件名称，基于 bucketName
  * @return
  */
 private String getUrl(String objectName) {
     // 设置URL过期时间为10年
     Date expiration = new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 10);
     // 生成URL
     URL url = ossClient.generatePresignedUrl(bucketName, objectName, expiration);
     if (url != null) {
         return url.toString();
     }
     return null;
 }

 /**
  * 每天生成一个文件名称
  *
  * @return
  */
 private String genFilePath() {
     return DateUtils.parseDateToStr("yyyyMMdd", new Date()) + "/";
 }

}