ASP.NET Core 3.0 [FromBody] string content returns “The JSON value could not be converted to System.String.”
问题 Using [FromBody] string content on an ApiController in ASP.NET Core 3.0 returns a validation error: {"type": "https://tools.ietf.org/html/rfc7231#section-6.5.1", "title":"One or more validation errors occurred.", "status":400, "traceId":"|9dd96d96-4e64bafba4ba0245.", "errors":{"$":["The JSON value could not be converted to System.String. Path: $ | LineNumber: 0 | BytePositionInLine: 1."]}} when the client post data with content-type : application/json How do I get the raw json data as a