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      ASP.NET Core 3.0 [FromBody] 字符串内容返回“无法将 JSON 值转换为 System.Str

      ASP.NET Core 3.0 [FromBody] string content returns quot;The JSON value could not be converted to System.String.quot;(ASP.NET Core 3.0 [FromBody] 字符串内容返回“无法将 JSON 值转换为 System.String.)

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              • 本文介绍了ASP.NET Core 3.0 [FromBody] 字符串内容返回“无法将 JSON 值转换为 System.String."的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                问题描述

                在 ASP.NET Core 3.0 中的 ApiController 上使用 [FromBody] 字符串内容会返回验证错误:

                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."]}}
                

                当客户端使用 content-type 发布数据时:application/json

                when the client post data with content-type : application/json

                如何在 .NET Core 3.0 的 api 控制器中将原始 json 数据作为字符串获取?无需客户端更新其内容类型?

                How do I get the raw json data as a string in my api controller in .NET Core 3.0? Without the client having to update its content type?

                推荐答案

                不确定这是否有帮助,但我认为他们在 .net core 3.0 Newtonsoft.JSON 包中进行了一些更改,因此您可以尝试一下

                Not sure this help but I think they made some change in .net core 3.0 Newtonsoft.JSON package so you can try this

                安装 Microsoft.AspNetCore.Mvc.NewtonsoftJson 包.

                在你的 startup.cs 添加

                In your startup.cs add

                services.AddControllers().AddNewtonsoftJson();

                这篇关于ASP.NET Core 3.0 [FromBody] 字符串内容返回“无法将 JSON 值转换为 System.String."的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

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