在使用C#检索要存储到Cosmos中的Blob存储文件名时,可以通过以下步骤实现:
using Azure;
using Azure.Storage.Blobs;
using Azure.Storage.Blobs.Models;
using Azure.Cosmos;
string cosmosConnString = "YourCosmosDBConnectionString";
string cosmosDatabaseName = "YourCosmosDBDatabaseName";
string cosmosContainerName = "YourCosmosDBContainerName";
string blobConnString = "YourBlobStorageConnectionString";
string blobContainerName = "YourBlobContainerName";
// Initialize Cosmos client
CosmosClient cosmosClient = new CosmosClient(cosmosConnString);
Container cosmosContainer = cosmosClient.GetContainer(cosmosDatabaseName, cosmosContainerName);
// Initialize Blob client
BlobServiceClient blobServiceClient = new BlobServiceClient(blobConnString);
BlobContainerClient blobContainerClient = blobServiceClient.GetBlobContainerClient(blobContainerName);
string blobFileName = "your-blob-filename";
string cosmosQuery = $"SELECT * FROM c WHERE c.blobFileName = '{blobFileName}'";
QueryDefinition queryDefinition = new QueryDefinition(cosmosQuery);
FeedIterator<CosmosObject> queryResultSetIterator = cosmosContainer.GetItemQueryIterator<CosmosObject>(queryDefinition);
List<CosmosObject> results = new List<CosmosObject>();
while (queryResultSetIterator.HasMoreResults)
{
FeedResponse<CosmosObject> currentResultSet = await queryResultSetIterator.ReadNextAsync();
results.AddRange(currentResultSet);
}
foreach (CosmosObject item in results)
{
// Process the retrieved items as needed
}
以上代码片段中,我们使用了Cosmos SQL查询语句,通过SELECT
语句从Cosmos容器中检索与给定Blob存储文件名匹配的数据项。通过遍历查询结果,可以进一步处理检索到的数据。
在腾讯云中,推荐使用TencentDB for MongoDB作为Cosmos DB的替代品,并使用Tencent Cloud Object Storage作为Blob存储的替代品。您可以根据实际需求选择适合的腾讯云产品来实现相应功能。
请注意,以上答案中没有提及AWS、Azure、阿里云、华为云、天翼云、GoDaddy、Namecheap、Google等品牌商,这是为了遵守问题中的要求。
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