服务AddJsonOptions .net core 2.1 [英] services AddJsonOptions .net core 2.1

问题描述

以前，在.net 2.0中，您可以通过这种方式添加json内容

Previously with .net 2.0, you can add json stuffs this way

 services.AddJsonOptions(options => {
                    options.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
                    options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
            });

或

services.AddMvc().AddJsonOptions(options => {
                    options.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
                    options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
            });

我意识到我无法使用.net 2.1做同样的事情.

I realize I can't do the same thing with .net 2.1.

我收到此错误:

'IServiceCollection' does not contain a definition for 'AddJsonOptions'
and the best extension method overload 'MvcJsonMvcBuilderExtensions.AddJsonOptions(IMvcBuilder, Action<MvcJsonOptions>)' 
requires a receiver of type 'IMvcBuilder

有人有解决办法吗?

推荐答案

使用

services.AddMvc().AddJsonOptions(...)

进行配置.

以上扩展方法可以在 Microsoft.AspNetCore.Mvc.Formatters.Json中找到版本2.1.0.0 .要么直接包含此软件包，要么添加这两个 Microsoft.AspNetCore.App / Microsoft.AspNetCore.All 之一.

Above extension method can be found in Microsoft.AspNetCore.Mvc.Formatters.Json Version 2.1.0.0. Either include this package directly, or add one of these two Microsoft.AspNetCore.App / Microsoft.AspNetCore.All.

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