1、在方法参数前加上JsonRead<T>的泛型特性

public ActionResult GetData([JsonRead(typeof(PostData))]PostData postData)

 

 

2、继承CustomModelBinder类：

public class JsonReadAttribute : CustomModelBinderAttribute    {        private Type type;        public JsonReadAttribute(Type type)        {            this.type = type;        }        public override IModelBinder GetBinder()        {            return new JsonReadModelBinder(type);        }    }

3、其中JsonReadModelBinder实现IModelBinder接口

public class JsonReadModelBinder : IModelBinder    {        private Type type;        public JsonReadModelBinder(Type type)        {            this.type = type;        }        public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)        {            var request = controllerContext.HttpContext.Request;            request.InputStream.Position = 0;            var objs = new object();            using (var s = new GZipStream(request.InputStream, CompressionMode.Decompress))            {                using (var sReader = new StreamReader(s, Encoding.UTF8))                {                    string str = sReader.ReadToEnd();                    if (type == typeof(PostData))                    {                        objs = JsonUnit.Deserialize
     
      (str);                    }else if (type == typeof(PostComment))                    {                        objs = JsonUnit.Deserialize
      
       (str);                    }//if else 扩展                    sReader.Close();                 }              }            return objs;        }