Net Core中使用Newtonsoft.Json进行序列化保持原有大小写

  JsonSerializerSettings settings = new JsonSerializerSettings();

    //EF Core中默认为驼峰样式序列化处理key
    //settings.ContractResolver = new CamelCasePropertyNamesContractResolver();

    //使用默认方式，不更改元数据的key的大小写

    settings.ContractResolver = new DefaultContractResolver();

    return Json(data, settings);

全局设置，Json序列化配置

public void ConfigureServices(IServiceCollection services)

{

    // Add framework services.

    services.AddMvc()

        //全局配置Json序列化处理

        .AddJsonOptions(options =>
        {

            //忽略循环引用

            options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;

            //不更改元数据的key的大小写

            options.SerializerSettings.ContractResolver = new DefaultContractResolver();


        }

        );

}