生命周期规则可针对前缀或对象标签生效,您也可以同时指定两者作为生命周期规则生效的条件。

说明 标签条件中标签的Key和Value必须同时匹配。同一个规则中,如果同时配置了前缀和多个对象标签,则只有同时满足前缀且匹配规则中所有对象标签的对象(Object),才视为适用于该规则。

生命周期规则中添加标签匹配规则

以下代码用于生命周期规则中添加标签匹配规则:

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.common.utils.DateUtil;
import com.aliyun.oss.model.LifecycleRule;
import com.aliyun.oss.model.SetBucketLifecycleRequest;
import java.util.HashMap;
import java.util.Map;

public class Demo {
    public static void main(String[] args) throws Throwable {
        // Endpoint以华东1(杭州)为例,其它Region请按实际情况填写。
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 阿里云账号AccessKey拥有所有API的访问权限,风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维,请登录RAM控制台创建RAM用户。
        String accessKeyId = "yourAccessKeyId";
        String accessKeySecret = "yourAccessKeySecret";
        // 填写Bucket名称,例如examplebucket。
        String bucketName = "examplebucket";

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

        try {
            // 创建SetBucketLifecycleRequest
            SetBucketLifecycleRequest request = new SetBucketLifecycleRequest(bucketName);

            // 设置规则ID、文件前缀与标签。
            String ruleId0 = "rule0";
            String matchPrefix0 = "A0/";
            Map<String, String> matchTags0 = new HashMap<String, String>();
            matchTags0.put("key0", "value0");


            String ruleId1 = "rule1";
            String matchPrefix1 = "A1/";
            Map<String, String> matchTags1 = new HashMap<String, String>();
            matchTags1.put("key1", "value1");


            String ruleId2 = "rule2";
            String matchPrefix2 = "A2/";

            String ruleId3 = "rule3";
            String matchPrefix3 = "A3/";

            // 距最后修改时间3天后过期。
            LifecycleRule rule = new LifecycleRule(ruleId0, matchPrefix0, LifecycleRule.RuleStatus.Enabled, 3);
            rule.setTags(matchTags0)
            request.AddLifecycleRule(rule);

            // 指定日期之前创建的文件过期。
            rule = new LifecycleRule(ruleId1, matchPrefix1, LifecycleRule.RuleStatus.Enabled);
            rule.setCreatedBeforeDate(DateUtil.parseIso8601Date("2022-10-12T00:00:00.000Z"));
            rule.setTags(matchTags1);
            request.AddLifecycleRule(rule);

            // 分片3天后过期。
            rule = new LifecycleRule(ruleId2, matchPrefix2, LifecycleRule.RuleStatus.Enabled);
            LifecycleRule.AbortMultipartUpload abortMultipartUpload = new LifecycleRule.AbortMultipartUpload();
            abortMultipartUpload.setExpirationDays(3);
            rule.setAbortMultipartUpload(abortMultipartUpload);
            request.AddLifecycleRule(rule);

            // 指定日期之前的分片过期。
            rule = new LifecycleRule(ruleId3, matchPrefix3, LifecycleRule.RuleStatus.Enabled);
            abortMultipartUpload = new LifecycleRule.AbortMultipartUpload();
            abortMultipartUpload.setCreatedBeforeDate(DateUtil.parseIso8601Date("2022-10-12T00:00:00.000Z"));
            rule.setAbortMultipartUpload(abortMultipartUpload);
            request.AddLifecycleRule(rule);

            ossClient.setBucketLifecycle(request);
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

查看生命周期规则中匹配的标签信息

以下代码用于查看生命周期规则中匹配的标签信息:

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.LifecycleRule;
import java.util.List;

public class Demo {
    public static void main(String[] args) throws Throwable {
        // Endpoint以华东1(杭州)为例,其它Region请按实际情况填写。
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // 阿里云账号AccessKey拥有所有API的访问权限,风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维,请登录RAM控制台创建RAM用户。
        String accessKeyId = "yourAccessKeyId";
        String accessKeySecret = "yourAccessKeySecret";
        // 填写Bucket名称,例如examplebucket。
        String bucketName = "examplebucket";

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

        try {
            // 获取生命周期规则。
            List<LifecycleRule> rules = ossClient.getBucketLifecycle(bucketName);

            // 查看生命周期规则。
            for (LifecycleRule rule1 : rules) {
                // 查看规则ID。
                System.out.println("rule id: " + rule1.getId());

                // 查看规则前缀。
                System.out.println("rule prefix: " + rule1.getPrefix());

                // 查看规则标签。
                if (rule1.hasTags()) {
                    System.out.println("rule tagging: "+ rule1.getTags().toString());
                }

                //查看过期天数规则。
                if (rule1.hasExpirationDays()) {
                    System.out.println("rule expiration days: " + rule1.getExpirationDays());
                }

                //查看过期日期规则。
                if (rule1.hasCreatedBeforeDate()) {
                    System.out.println("rule expiration create before days: " + rule1.getCreatedBeforeDate());
                }

                //查看过期分片规则。
                if(rule1.hasAbortMultipartUpload()) {
                    if(rule1.getAbortMultipartUpload().hasExpirationDays()) {
                        System.out.println("rule abort uppart days: " + rule1.getAbortMultipartUpload().getExpirationDays());
                    }

                    if (rule1.getAbortMultipartUpload().hasCreatedBeforeDate()) {
                        System.out.println("rule abort uppart create before date: " + rule1.getAbortMultipartUpload().getCreatedBeforeDate());
                    }
                }
            }
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}