使给定操作接受给定内容类型的属性？

Question

是否可以在 ASP.NET Core MVC 中仅更改某些操作以接受plain/text或application/xml（即content-type）使用属性而不更改默认输入格式化程序？

Answer 1

开箱即用的 ASP.NET Core 仅支持 JSON 或 XML。只要您设置了负载的内容类型，无论控制器操作如何，它都应该正确反序列化。如果你想要支持任何其他内容类型（例如文本/纯文本），你可以创建一个自定义格式化程序直接取自 aspnet 示例repo的示例：public class TextPlainInputFormatter : TextInputFormatter{&nbsp; &nbsp; public TextPlainInputFormatter()&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; SupportedMediaTypes.Add("text/plain");&nbsp; &nbsp; &nbsp; &nbsp; SupportedEncodings.Add(UTF8EncodingWithoutBOM);&nbsp; &nbsp; &nbsp; &nbsp; SupportedEncodings.Add(UTF16EncodingLittleEndian);&nbsp; &nbsp; }&nbsp; &nbsp; protected override bool CanReadType(Type type)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; return type == typeof(string);&nbsp; &nbsp; }&nbsp; &nbsp; public override async Task<InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context, Encoding encoding)&nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; string data = null;&nbsp; &nbsp; &nbsp; &nbsp; using (var streamReader = context.ReaderFactory(context.HttpContext.Request.Body, encoding))&nbsp; &nbsp; &nbsp; &nbsp; {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; data = await streamReader.ReadToEndAsync();&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; &nbsp; &nbsp; return InputFormatterResult.Success(data);&nbsp; &nbsp; }}