使用newtonjson解决Json日期格式问题

继承 JsonResult 方式

使用Json.Net代替最简单的方法就是使用下面的JsonNetResult 来作为 ActionResult 返回。

1) Install-Package newtonsoft.json
2) 创建一个JsonNetResult继承自JsonResult(相当于自定义ActionResult)

public class JsonNetResult : JsonResult
    {
        public JsonNetResult()
        {
            Settings = new JsonSerializerSettings
            {
                ReferenceLoopHandling = ReferenceLoopHandling.Ignore,//忽略循环引用,如果设置为Error,则遇到循环引用的时候报错(建议设置为Error,这样更规范) 
                DateFormatString = "yyyy-MM-dd HH:mm:ss",//日期格式化,默认的格式也不好看 
                ContractResolver = new Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver()//json中属性开头字母小写的驼峰命名
            };
        }

        public JsonSerializerSettings Settings { get; private set; }

        public override void ExecuteResult(ControllerContext context)
        {
            if (context == null)
                throw new ArgumentNullException("context");
            if (this.JsonRequestBehavior == JsonRequestBehavior.DenyGet && string.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase))
                throw new InvalidOperationException("JSON GET is not allowed");

            HttpResponseBase response = context.HttpContext.Response;
            response.ContentType = string.IsNullOrEmpty(this.ContentType) ? "application/json" : this.ContentType;
            if (this.ContentEncoding != null)
                response.ContentEncoding = this.ContentEncoding;
            if (this.Data == null)
                return;

            var scriptSerializer = JsonSerializer.Create(this.Settings);
            scriptSerializer.Serialize(response.Output, this.Data);
        }
    }

AOP 方式

下面使用最没有“侵入性”的方法(什么是“侵入性”?引入这个技术对系统的改动量)。

下面这种做法是体现了“一夫当关万夫莫开”的AOP的思想。

3) 新建一个类JsonNetActionFilter

 public class JsonNetActionFilter : IActionFilter 
    { 
        public void OnActionExecuted(ActionExecutedContext filterContext) 
        { 
            //把 filterContext.Result从JsonResult换成JsonNetResult 
            //filterContext.Result值得就是Action执行返回的ActionResult对象 
            if (filterContext.Result is JsonResult 
                &&!(filterContext.Result is JsonNetResult)) 
            { 
                JsonResult jsonResult = (JsonResult)filterContext.Result; 
                JsonNetResult jsonNetResult = new JsonNetResult(); 
                jsonNetResult.ContentEncoding = jsonResult.ContentEncoding; 
                jsonNetResult.ContentType = jsonResult.ContentType; 
                jsonNetResult.Data = jsonResult.Data; 
                jsonNetResult.JsonRequestBehavior = jsonResult.JsonRequestBehavior; 
                jsonNetResult.MaxJsonLength = jsonResult.MaxJsonLength; 
                jsonNetResult.RecursionLimit = jsonResult.RecursionLimit; 
				
			    filterContext.Result = jsonNetResult; 
            } 
        } 
 
        public void OnActionExecuting(ActionExecutingContext filterContext) 
        { 
             
        } 
    } 

4) Global中加一句:GlobalFilters.Filters.Add(new JsonNetActionFilter ());

posted @ 2018-10-11 22:10  【唐】三三  阅读(1455)  评论(0编辑  收藏  举报