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。
注意事项
本文以华东1(杭州)外网Endpoint为例。如果您希望通过与OSS同地域的其他阿里云产品访问OSS,请使用内网Endpoint。关于OSS支持的Region与Endpoint的对应关系,请参见访问域名和数据中心。
本文以OSS域名新建OSSClient为例。如果您希望通过自定义域名、STS等方式新建OSSClient,请参见新建OssClient。
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:
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;
int main(void)
{
/* 初始化OSS账号信息。*/
/* yourEndpoint填写Bucket所在地域对应的Endpoint。以华东1(杭州)为例,Endpoint填写为https://oss-cn-hangzhou.aliyuncs.com。*/
std::string Endpoint = "yourEndpoint";
/* 填写Bucket名称,例如examplebucket。*/
std::string BucketName = "examplebucket";
/* 初始化网络等资源。*/
InitializeSdk();
ClientConfiguration conf;
/* 从环境变量中获取访问凭证。运行本代码示例之前,请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。*/
auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
OssClient client(Endpoint, credentialsProvider, conf);
SetBucketLifecycleRequest request(BucketName);
/* 设置标签规则。*/
Tagging tagging;
tagging.addTag(Tag("key1", "value1"));
tagging.addTag(Tag("key2", "value2"));
/* 指定生命周期。*/
auto rule1 = LifecycleRule();
rule1.setID("rule1");
rule1.setPrefix("test1/");
rule1.setStatus(RuleStatus::Enabled);
rule1.setExpiration(3);
rule1.setTags(tagging.Tags());
/* 在生命周期规则中设置标签信息。*/
LifecycleRuleList list{rule1};
request.setLifecycleRules(list);
auto outcome = client.SetBucketLifecycle(request);
if (!outcome.isSuccess()) {
/* 异常处理。*/
std::cout << "SetBucketLifecycle fail" <<
",code:" << outcome.error().Code() <<
",message:" << outcome.error().Message() <<
",requestId:" << outcome.error().RequestId() << std::endl;
return -1;
}
/* 释放网络等资源。*/
ShutdownSdk();
return 0;
}
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:
#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;
int main(void)
{
/* 初始化OSS账号信息。*/
/* yourEndpoint填写Bucket所在地域对应的Endpoint。以华东1(杭州)为例,Endpoint填写为https://oss-cn-hangzhou.aliyuncs.com。*/
std::string Endpoint = "yourEndpoint";
/* 填写Bucket名称,例如examplebucket。*/
std::string BucketName = "examplebucket";
/* 初始化网络等资源。*/
InitializeSdk();
ClientConfiguration conf;
/* 从环境变量中获取访问凭证。运行本代码示例之前,请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。*/
auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
OssClient client(Endpoint, credentialsProvider, conf);
/* 查看生命周期规则,包含涉及的标签信息。*/
auto outcome = client.GetBucketLifecycle(BucketName);
if (outcome.isSuccess()) {
std::cout << "GetBucketLifecycle success," << std::endl;
for (auto const rule : outcome.result().LifecycleRules()) {
std::cout << "rule:" << rule.ID() << "," << rule.Prefix() << "," << rule.Status() << ","
"hasExpiration:" << rule.hasExpiration() << "," <<
"hasTransitionList:" << rule.hasTransitionList() << "," << std::endl;
auto taglist = rule.Tags();
for (const auto& tag : taglist)
{
std::cout <<"GetBucketLifecycle tag success, Key:"
<< tag.Key() << "; Value:" << tag.Value() << std::endl;
}
}
}
else {
/* 异常处理。*/
std::cout << "GetBucketLifecycle fail" <<
",code:" << outcome.error().Code() <<
",message:" << outcome.error().Message() <<
",requestId:" << outcome.error().RequestId() << std::endl;
return -1;
}
/* 释放网络等资源。*/
ShutdownSdk();
return 0;
}
相关文档
关于生命周期规则的完整示例代码,请参见GitHub示例。
关于设置生命周期规则的API接口说明,请参见PutBucketLifecycle。
关于查看生命周期规则的API接口说明,请参见GetBucketLifecycle。