C# json 序列化 匿名对象序列号 指定对象序列化

一、序列化
通常我们返回json对象给客户端，需要新建一个类，因为有些数据对方是不需要，
就像一个类Person，里面有字段Name、Photo，而对方有要Photo也有不要Photo的，这个时候我们通过序列化 类指定
1.引入System.Web.Extensions
2.

     var p = new Person { Name = "yc的客户", Photo = "hahaahh" };            var s = new PropertyVariableJsonSerializer();            string result1 = s.Serialize<Person>(p, new List<string>() { "Name" });            string result2 = s.Serialize<Person>(p, new List<string>() { "Name", "Photo" });            Console.WriteLine(result1);            Console.WriteLine(result2);            Console.ReadLine();

 public class Person    {        public string Name { get; set; }        public string Photo { get; set; }    }

通用方法

 public class PropertyVariableJsonSerializer    {        readonly System.Web.Script.Serialization.JavaScriptSerializer _serializer = new JavaScriptSerializer();        /**/        /// <summary>          /// json 序列化          /// </summary>          /// <typeparam name="T"></typeparam>          /// <param name="obj"></param>          /// <param name="propertys"></param>          /// <returns></returns>          public string Serialize<T>(T obj, List<string> propertys)        {            _serializer.RegisterConverters(new[] { new PropertyVariableConveter(typeof(T), propertys) });            return _serializer.Serialize(obj);        }    }    public class PropertyVariableConveter : JavaScriptConverter    {        private readonly List<Type> _supportedTypes = new List<Type>();        public PropertyVariableConveter(Type supportedType, List<string> propertys)        {            _supportedTypes.Add(supportedType);            Propertys = propertys;        }        private List<string> Propertys { get; set; }        public override object Deserialize(IDictionary<string, object> dictionary, Type type, JavaScriptSerializer serializer)        {            throw new Exception("  这个暂时不支持 ， 谢谢 ");        }        public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer)        {            var dic = new Dictionary<string, object>();            var t = obj.GetType();            var properties = t.GetProperties();            foreach (var ite in properties)            {                string key = ite.Name;                var v = t.GetProperty(key).GetValue(obj, null);                if (Propertys == null || Propertys.Count <= 0)                {                    dic.Add(key, v);                    continue;                }                if (Propertys.Contains(key))                {                    dic.Add(key, v);                }            }            return dic;        }        public override IEnumerable<Type> SupportedTypes        {            get { return _supportedTypes; }        }    }  

二、反序列化

我们获取了一个json，但是我们不想写类，这个时候我能就可以使用
引入Newtonsoft.Json;

   var p = new Person { Name = "yc的客户", Photo = "hahaahh" };            var s = new PropertyVariableJsonSerializer();            string result1 = s.Serialize<Person>(p, new List<string>() { "Name" });            string result2 = s.Serialize<Person>(p, new List<string>() { "Name", "Photo" });   var jo2 = JsonConvert.DeserializeObject<dynamic>(result2);   Console.WriteLine(jo2.Name);