[英]Register same interface multiple times - Autofac
我正在嘗試使用不同的配置注冊一個接口,如下所示:
private static ContainerBuilder RegisterAzureStorage(this ContainerBuilder containerBuilder, IAzureStorageOptions azureStorageOptions)
{
containerBuilder.Register(c =>
new AzureStorageKeyValuePersistenceService(
new AzureStorageKeyValuePersistenceConfig(
azureStorageOptions.DctAzureBlobConnectionString,
azureStorageOptions.DctAzureBlobContainerName)))
.As<IStreamableKeyValuePersistenceService>()
.Keyed<IStreamableKeyValuePersistenceService>(PersistenceStorageKeys.DctAzureStorage)
.SingleInstance();
containerBuilder.Register(c =>
new AzureStorageKeyValuePersistenceService(
new AzureStorageKeyValuePersistenceConfig(
azureStorageOptions.NcsAzureBlobConnectionString,
azureStorageOptions.NcsAzureBlobContainerName)))
.As<IStreamableKeyValuePersistenceService>()
.Keyed<IStreamableKeyValuePersistenceService>(PersistenceStorageKeys.NcsAzureStorage)
.SingleInstance();
return containerBuilder;
}
然后在我的構造函數中:
public ReportingController(
[KeyFilter(PersistenceStorageKeys.DctAzureStorage)] IStreamableKeyValuePersistenceService dctStorage,
[KeyFilter(PersistenceStorageKeys.NcsAzureStorage)] IStreamableKeyValuePersistenceService ncsStorage)
{
_dctStorage = dctStorage;
_ncsStorage = ncsStorage;
}
和用法:
await _dctStorage.SaveAsync(........);
await _ncsStorage.SaveAsync(........);
但是,在執行時,它只會選取最后一個注冊並將兩個對象保存到同一位置。
我可以使用 enumerable 方法讓它工作:
public ReportingController(IEnumerable<IStreamableKeyValuePersistenceService> storage)
{
_storage = storage;
}
然后對於可枚舉的每個,但如果可能的話,我更願意使用鍵控方法。
關於我缺少什么的任何想法?
對於將來遇到此問題的任何人,我都缺少注冊,在這種情況下IReportingController
需要使用WithAttributeFiltering()
注冊執行接口,如下所示:
containerBuilder.RegisterType<ReportingController>().As<IReportingController>().WithAttributeFiltering();
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