public async Task <bool> CopyObjectAsync(string bucketName, string objectName, string destBucketName, string destObjectName = null)
{
if (string.IsNullOrEmpty(bucketName))
{
throw new ArgumentNullException(nameof(bucketName));
}
if (string.IsNullOrEmpty(objectName))
{
throw new ArgumentNullException(nameof(objectName));
}
if (string.IsNullOrEmpty(destBucketName))
{
destBucketName = bucketName;
}
if (string.IsNullOrEmpty(destObjectName))
{
destObjectName = objectName;
}
bucketName = ConvertBucketName(bucketName);
CopySourceStruct copySource = new CopySourceStruct(Options.Endpoint, bucketName, Options.Region, objectName);
string bucket = ConvertBucketName(destBucketName);
CopyObjectRequest request = new CopyObjectRequest(bucket, destObjectName);
//设置拷贝源
request.SetCopySource(copySource);
//设置是否拷贝还是更新,此处是拷贝
request.SetCopyMetaDataDirective(COSXML.Common.CosMetaDataDirective.Copy);
//执行请求
CopyObjectResult result = _client.CopyObject(request);
return(await Task.FromResult(result.IsSuccessful()));
}
/// 复制对象时保留对象属性
public void CopyObject()
{
//.cssg-snippet-body-start:[copy-object]
try
{
string sourceAppid = "1250000000"; //账号 appid
string sourceBucket = "sourcebucket-1250000000"; //"源对象所在的存储桶
string sourceRegion = "COS_REGION"; //源对象的存储桶所在的地域
string sourceKey = "sourceObject"; //源对象键
//构造源对象属性
CopySourceStruct copySource = new CopySourceStruct(sourceAppid, sourceBucket,
sourceRegion, sourceKey);
string bucket = "examplebucket-1250000000"; //存储桶，格式：BucketName-APPID
string key = "exampleobject"; //对象键
CopyObjectRequest request = new CopyObjectRequest(bucket, key);
//设置拷贝源
request.SetCopySource(copySource);
//设置是否拷贝还是更新,此处是拷贝
request.SetCopyMetaDataDirective(COSXML.Common.CosMetaDataDirective.Copy);
//执行请求
CopyObjectResult result = cosXml.CopyObject(request);
//请求成功
Console.WriteLine(result.GetResultInfo());
}
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
}
/// 修改对象元数据
public void ModifyObjectMetadata()
{
//.cssg-snippet-body-start:[modify-object-metadata]
try
{
string bucket = "examplebucket-1250000000"; //存储桶，格式：BucketName-APPID
string key = "exampleobject"; //对象键
string appId = "1250000000"; //账号 appid
string region = "COS_REGION"; //源对象的存储桶所在的地域
//构造对象属性
CopySourceStruct copySource = new CopySourceStruct(appId, bucket,
region, key);
CopyObjectRequest request = new CopyObjectRequest(bucket, key);
//设置拷贝源
request.SetCopySource(copySource);
//设置是否拷贝还是更新,此处是拷贝
request.SetCopyMetaDataDirective(COSXML.Common.CosMetaDataDirective.REPLACED);
// 替换元数据
request.SetRequestHeader("Content-Disposition", "attachment; filename=example.jpg");
request.SetRequestHeader("Content-Type", "image/png");
//执行请求
CopyObjectResult result = cosXml.CopyObject(request);
//请求成功
Console.WriteLine(result.GetResultInfo());
}
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
}
public void Rename(string oldname, string newname)
{
try
{
cosXml = GetCosXml();
string sourceAppid = _cosOptions.Appid;
string sourceBucket = _cosOptions.Bucket;
string sourceRegion = _cosOptions.Region;
string sourceKey = GetFullKey(oldname);
CopySourceStruct copySource = new CopySourceStruct(sourceAppid, sourceBucket,
sourceRegion, sourceKey);
string bucket = _cosOptions.Bucket;
string key = GetFullKey(newname);
CopyObjectRequest request = new CopyObjectRequest(bucket, key);
request.SetSign(TimeUtils.GetCurrentTime(TimeUnit.SECONDS), KEY_DURATION_SECOND);
request.SetCopySource(copySource);
request.SetCopyMetaDataDirective(COSXML.Common.CosMetaDataDirective.COPY);
CopyObjectResult result = cosXml.CopyObject(request);
//Console.WriteLine(result.GetResultInfo());
Delete(oldname);
}
catch (COSXML.CosException.CosClientException clientEx)
{
Logging.Log.WriteErrorMessage(LOGTAG, "Rename", clientEx, "Rename failed: {0} to {1}", oldname, newname);
throw;
}
catch (COSXML.CosException.CosServerException serverEx)
{
Logging.Log.WriteErrorMessage(LOGTAG, "Rename", serverEx, "Rename failed: {0} to {1}, {2}", oldname, newname, serverEx.GetInfo());
throw;
}
}
