json序列化和反序列化

using Newtonsoft.Json;  
using Newtonsoft.Json.Converters;  
using System.IO;  
   
namespace Helper  
{  
    public class JsonHelper  
    {  
        /// <summary>  
        /// 将对象序列化为JSON格式  
        /// </summary>  
        /// <param name="o">对象</param>  
        /// <returns>json字符串</returns>  
        public static string SerializeObject(object o)  
        {  
            string json = JsonConvert.SerializeObject(o);  
            return json;  
        }  
   
        /// <summary>  
        /// 解析JSON字符串生成对象实体  
        /// </summary>  
        /// <typeparam name="T">对象类型</typeparam>  
        /// <param name="json">json字符串(eg.{"ID":"112","Name":"石子儿"})</param>  
        /// <returns>对象实体</returns>  
        public static T DeserializeJsonToObject<T>(string json) where T : class  
        {  
            JsonSerializer serializer = new JsonSerializer();  
            StringReader sr = new StringReader(json);  
            object o = serializer.Deserialize(new JsonTextReader(sr), typeof(T));  
            T t = o as T;  
            return t;  
        }  
   
        /// <summary>  
        /// 解析JSON数组生成对象实体集合  
        /// </summary>  
        /// <typeparam name="T">对象类型</typeparam>  
        /// <param name="json">json数组字符串(eg.[{"ID":"112","Name":"石子儿"}])</param>  
        /// <returns>对象实体集合</returns>  
        public static List<T> DeserializeJsonToList<T>(string json) where T : class  
        {  
            JsonSerializer serializer = new JsonSerializer();  
            StringReader sr = new StringReader(json);  
            object o = serializer.Deserialize(new JsonTextReader(sr), typeof(List<T>));  
            List<T> list = o as List<T>;  
            return list;  
        }  
   
        /// <summary>  
        /// 反序列化JSON到给定的匿名对象.  
        /// </summary>  
        /// <typeparam name="T">匿名对象类型</typeparam>  
        /// <param name="json">json字符串</param>  
        /// <param name="anonymousTypeObject">匿名对象</param>  
        /// <returns>匿名对象</returns>  
        public static T DeserializeAnonymousType<T>(string json, T anonymousTypeObject)  
        {  
            T t = JsonConvert.DeserializeAnonymousType(json, anonymousTypeObject);  
            return t;  
        }  
    }  
}