c# - 从azure表存储中获取所有记录

Question

使用此代码块

try
{
    StorageCredentials creds = new StorageCredentials(accountName, accountKey);
    CloudStorageAccount account = new CloudStorageAccount(creds, useHttps: true);

    CloudTableClient client = account.CreateCloudTableClient();
    CloudTable table = client.GetTableReference("serviceAlerts");

    TableOperation retrieveOperation = TableOperation.Retrieve<ServiceAlertsEntity>("ServiceAlerts", "b9ccd839-dd99-4358-b90f-46781b87f933");

    TableResult query = table.Execute(retrieveOperation);

    if (query.Result != null)
    {
        outline = outline + ((ServiceAlertsEntity) query.Result).alertMessage + " * ";
    }
    else
    {
        Console.WriteLine("No Alerts");
    }
}
catch (Exception ex)
{
    Console.WriteLine(ex);
}

我能够使用检索中提到的分区和行键检索单个记录。

有没有办法获取存储在 ServiceAlerts 分区中的所有记录？

我尝试使用通配符 (*) 作为第二个参数

TableOperation retrieveOperation = TableOperation.Retrieve<ServiceAlertsEntity>(
      "ServiceAlerts","b9ccd839-dd99-4358-b90f-46781b87f933");

但它不会返回任何内容。

Answer 1

您需要指定一个 TableQuery，这将为您提供所有实体，或者您可以指定一个 TableQuery.GenerateFilterCondition 来过滤行。

TableQuery<ServiceAlertsEntity> query = new TableQuery<ServiceAlertsEntity>();

foreach (ServiceAlertsEntity entity in table.ExecuteQuery(query))
{
    Console.WriteLine("{0}, {1}\t{2}\t{3}", entity.PartitionKey, entity.RowKey,
                        entity.Field1, entity.Field2);
}