asp.net-mvc - 对普通 Controller 使用 JSON.NET 格式化程序

Question

当从 Controller (MVC 4 RC)返回 Json 时，我想修改 Json 以对属性使用驼峰式 shell ，为此我尝试设置 GlobalConfiguration.Formatters.JsonFormatter(不确定这是否正确...don '没有代码在我面前)，但这似乎不会影响 Controller.Json 方法输出的 Json。

环顾四周后，似乎这种方法只会影响 Web API Controller 等。这是真的吗？另外，是否可以更改 Controller.Json() 方法来实现这一点？

Answer 1

就像@rouen 建议的那样，创建了自己的 JsonDotNetResult。

这是我在我的项目中的一个:

public class JsonNetResult : ActionResult
{
    public Encoding ContentEncoding { get; set; }
    public string ContentType { get; set; }
    public object Data { get; set; }
    public int StatusCode { get; set; }

    public JsonSerializerSettings SerializerSettings { get; set; }

    public JsonNetResult()
    {
        SerializerSettings = new JsonSerializerSettings
        {
            ContractResolver = new CamelCasePropertyNamesContractResolver()
        };
    }

    public override void ExecuteResult(ControllerContext context)
    {
        if (context == null)
            throw new ArgumentNullException("context");

        var response = context.HttpContext.Response;

        response.StatusCode = StatusCode;
        response.ContentType = string.IsNullOrEmpty(ContentType) ? "application/json" : ContentType;

        if ((StatusCode >= 400) && (StatusCode <= 599))
            response.TrySkipIisCustomErrors = true;

        if (ContentEncoding != null)
            response.ContentEncoding = ContentEncoding;

        if (Data == null)
            return;

        var formatting = Formatting.None;

#if DEBUG
        formatting = Formatting.Indented;
#endif

        var writer = new JsonTextWriter(response.Output) { Formatting = formatting };

        var serializer = JsonSerializer.Create(SerializerSettings);
        serializer.Serialize(writer, Data);

        writer.Flush();
    }
}

然后我有我自己的 baseController 继承自给我 JsonDotNet(object viewModel) 类型的方法。

例如。

protected JsonNetResult JsonNet(object data = null, int statusCode = (int)HttpStatusCode.OK, string contentType = null)
{
    return new JsonNetResult
               {
                   Data = data,
                   StatusCode = statusCode,
                   ContentType = contentType
               };
}

protected JsonNetResult JsonNetForbidden()
{
    return JsonNet(statusCode: (int)HttpStatusCode.Forbidden);
}

protected JsonNetResult JsonNetNotFound()
{
    return JsonNet(statusCode: (int)HttpStatusCode.NotFound);
}

protected JsonNetResult JsonNetNoContent()
{
    return JsonNet(statusCode: (int)HttpStatusCode.NoContent);
}

protected JsonNetResult JsonNetCreated(object data)
{
    return JsonNet(data, (int)HttpStatusCode.Created);
}

protected JsonNetResult JsonNetReload()
{
    return JsonNet(new { reload = true });
}

protected JsonNetResult JsonNetRedirect(string url = null, string contentType = null)
{
    return JsonNet(new { redirectUrl = url }, contentType: contentType);
}

protected JsonNetResult JsonNetClientError(ErrorDictionary errors)
{
    return JsonNet(new { Errors = errors }, (int)HttpStatusCode.BadRequest);
}

protected JsonNetResult JsonNetUnauthorized()
{
    return JsonNet(null, (int)HttpStatusCode.Unauthorized);
}

protected JsonNetResult JsonNetFlashMessage(string message)
{
    return JsonNet(new { flashMessage = message });
}