API | 操作名 | 操作描述 |
查询对象元数据 | 查询对象的元数据信息 |
using COSXML.Model.Object;using COSXML.Auth;using System;using COSXML;namespace COSSnippet{public class DoesObjectExistModel {private CosXml cosXml;DoesObjectExistModel() {CosXmlConfig config = new CosXmlConfig.Builder().SetRegion("COS_REGION") // 设置默认的地域, COS 地域的简称请参照 https://www.tencentcloud.com/document/product/436/6224?from_cn_redirect=1.Build();string secretId = "SECRET_ID"; // 云 API 密钥 SecretId, 获取 API 密钥请参照 https://console.tencentcloud.com/cam/capistring secretKey = "SECRET_KEY"; // 云 API 密钥 SecretKey, 获取 API 密钥请参照 https://console.tencentcloud.com/cam/capilong durationSecond = 600; //每次请求签名有效时长,单位为秒QCloudCredentialProvider qCloudCredentialProvider = new DefaultQCloudCredentialProvider(secretId,secretKey, durationSecond);this.cosXml = new CosXmlServer(config, qCloudCredentialProvider);}/// 检查对象是否存在public void DoesObjectExist(){try{// 存储桶名称,此处填入格式必须为 bucketname-APPID, 其中 APPID 获取参考 https://console.tencentcloud.com/developerstring bucket = "examplebucket-1250000000";string key = "exampleobject"; //对象键DoesObjectExistRequest request = new DoesObjectExistRequest(bucket, key);//执行请求bool exist = cosXml.DoesObjectExist(request);//请求成功Console.WriteLine("object exist state is: " + exist);}catch (COSXML.CosException.CosClientException clientEx){//请求失败Console.WriteLine("CosClientException: " + clientEx);}catch (COSXML.CosException.CosServerException serverEx){//请求失败Console.WriteLine("CosServerException: " + serverEx.GetInfo());}//.cssg-snippet-body-end}// .cssg-methods-pragmastatic void Main(string[] args){DoesObjectExistModel m = new DoesObjectExistModel();/// 检查对象是否存在m.DoesObjectExist();// .cssg-methods-pragma}}}
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