DI中Transient Scoped Singleton Instance的区别

Observe which of the

OperationId

values varies within a request, and between requests.

Transient

objects are always different; a new instance is provided to every controller and every service.

Scoped

objects are the same within a request, but different across different requests

Singleton

objects are the same for every object and every request (regardless of whether an instance is provided in

ConfigureServices

)