IFormFile.OpenReadStream() 是否需要处置？

Question

应该在块IFormFile.OpenReadStream()内调用using以便正确处理它吗？IFormFile或者在http请求处理完成后会被处理掉吗？

https://learn.microsoft.com/en-us/dotnet/api/microsoft.aspnetcore.http.iformfile.openreadstream?view=aspnetcore-5.0#Microsoft_AspNetCore_Http_IFormFile_OpenReadStream

Answer 1

每次FormFile创建一个新的默认实现称为： https: //github.com/dotnet/aspnetcore/blob/033b1fb1cf681ea95d3954c08e4391c93cd72683/src/Http/Http/src/FormFile.cs#L81ReferenceReadStreamOpenReadStream()

ReferenceReadStream不包含任何非托管资源。调用Dispose它本质上是一个空操作。 https://github.com/dotnet/aspnetcore/blob/033b1fb1cf681ea95d3954c08e4391c93cd72683/src/Http/Http/src/Internal/ReferenceReadStream.cs#L14

考虑到这一点，IFormFile.OpenReadStream()不需要处理。但丢弃它也不会造成任何伤害。