与ASP.NET Core中的FromBody混淆 [英] Confused with FromBody in ASP.NET Core

问题描述

我具有以下WEB API方法，并且具有Angular的SPA模板:

I have the following WEB API method, and have a SPA template with Angular:

[HttpPost]
public IActionResult Post([FromBody]MyViewModel model)

我基于这主题，这里不需要使用[FromBody]，因为我想从消息正文中读取值，所以不需要覆盖默认行为，但是，如果我不使用[FromBody]，则来自Angular的模型为null.我真的很困惑，既然使用了默认行为，为什么还要使用[FromBody]?

I thought, based on this topic, there is no need to use [FromBody] here, since I want to read the value from the message body, so there is no need to override the default behavior, but, if I don't use [FromBody], the model that is coming from Angular is null. I'm really confused, why should I use [FromBody], since I have used the default behavior?

推荐答案

对于发现此问题.net核心3的任何人，您都需要将[ApiController]添加到扩展ControllerBase的控制器中. 只有在执行MVC控制器时才需要[FromBody].

For anyone seeing this issue .net core 3 - you need to add the [ApiController] to the controller where you extend ControllerBase. The [FromBody] is only needed if you're doing an MVC controller.

这会使主体按照您期望的方式自动处理.

This causes the body to get automatically processed in the way you're expecting.

有关以下内容的Microsoft文档ApiController属性

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