JSON序列化和反序列化

public class JSONHelper
    {
        public static string Serialize<T>(T obj)//序列化为JSON
        {
            System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(obj.GetType());
            MemoryStream ms = new MemoryStream();
            serializer.WriteObject(ms, obj);
            string retVal = Encoding.Default.GetString(ms.ToArray());
            return retVal;
        }

        public static T Deserialize<T>(string json)//反序列化为对象
        {
            T obj = Activator.CreateInstance<T>();
            MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json));
            System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(obj.GetType());
            obj = (T)serializer.ReadObject(ms);
            ms.Close();
            return obj;
        }
        public static List<T> DeserializeToList<T>(string json)//反序列化成泛型
        {

            JavaScriptSerializer serializer = new JavaScriptSerializer();

            List<T> objs = serializer.Deserialize<List<T>>(json);

            return objs;

        }
    }
JavaScriptSerializer 需添加system.web.Extensions引用