Asp.net core 如何在AspNet Core 1.1中注入MvcJsonOptions？

我不能使用静态

jsonvert

设置，在我的过滤器中，我需要根据当前

MvcJsonOptions

设置字符串格式：

services.AddMvc().AddJsonOptions(x =>
{
    x.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
});

class ReturnBadRequestForInvalidModelFilter : IAsyncActionFilter
    {
        private readonly MvcJsonOptions _options;

        public ReturnBadRequestForInvalidModelFilter(MvcJsonOptions options)
        {
            _options = options;
        }

        ...

        private string FormatPropertyName(string key)
        {
            if (string.IsNullOrEmpty(key))
                return key;

            return _options.SerializerSettings.ContractResolver is CamelCasePropertyNamesContractResolver
                ? char.ToLowerInvariant(key[0]) + key.Substring(1)
                : key;
        }

灵感来源于尝试使用

IOptions

：

services.AddMvc().AddJsonOptions(x =>
{
    x.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
});

class ReturnBadRequestForInvalidModelFilter : IAsyncActionFilter
    {
        private readonly MvcJsonOptions _options;

        public ReturnBadRequestForInvalidModelFilter(MvcJsonOptions options)
        {
            _options = options;
        }

        ...

        private string FormatPropertyName(string key)
        {
            if (string.IsNullOrEmpty(key))
                return key;

            return _options.SerializerSettings.ContractResolver is CamelCasePropertyNamesContractResolver
                ? char.ToLowerInvariant(key[0]) + key.Substring(1)
                : key;
        }

公共类您的类
{
公共MvcJsonOptions JsonOptions{get；set；}
公共YourClass（IOOptions MVCJSoOptions）
{
JsonOptions=mvcJsonOptions.Value；
}
}

这样不行吗？它会出错吗？抱歉，您的问题不太清楚。它失败了，

MvcJsonOptions

不是服务。