JsonHelper

// 对象转JSON
        /// <param name="obj">对象</param>
        public static string ObjectToJSON(object obj)
        {
            JavaScriptSerializer jss = new JavaScriptSerializer();
            try
            {
                byte[] b = Encoding.UTF8.GetBytes(jss.Serialize(obj));
                return Encoding.UTF8.GetString(b);
            }
            catch (Exception ex)
            {

                throw new Exception("JSONHelper.ObjectToJSON(): " + ex.Message);
            }
        }

// 数据表转键值对集合
        /// 把DataTable转成 List集合, 存每一行
        /// 集合中放的是键值对字典,存每一列
        /// <param name="dt">数据表</param>
        public static List<Dictionary<string, object>> DataTableToList(DataTable dt)
        {
            List<Dictionary<string, object>> list
                 = new List<Dictionary<string, object>>();

            foreach (DataRow dr in dt.Rows)
            {
                Dictionary<string, object> dic = new Dictionary<string, object>();
                foreach (DataColumn dc in dt.Columns)
                {
                    dic.Add(dc.ColumnName, dr[dc.ColumnName]);
                }
                list.Add(dic);
            }
            return list;
        }

// 数据集转键值对数组字典
        /// </summary>
        /// <param name="dataSet">数据集</param>
        /// <returns>键值对数组字典</returns>
        public static Dictionary<string, List<Dictionary<string, object>>> DataSetToDic(DataSet ds)
        {
            Dictionary<string, List<Dictionary<string, object>>> result = new Dictionary<string, List<Dictionary<string, object>>>();

            foreach (DataTable dt in ds.Tables)
                result.Add(dt.TableName, DataTableToList(dt));

            return result;
        }

 // JSON文本转对象,泛型方法
        /// <typeparam name="T">类型</typeparam>
        /// <param name="jsonText">JSON文本</param>
        public static T JSONToObject<T>(string jsonText)
        {
            JavaScriptSerializer jss = new JavaScriptSerializer();
            try
            {
                return jss.Deserialize<T>(jsonText);
            }
            catch (Exception ex)
            {
                throw new Exception("JSONHelper.JSONToObject(): " + ex.Message);
            }
        }

// 将JSON文本转换为数据表数据
        /// <param name="jsonText">JSON文本</param>
        public static Dictionary<string, List<Dictionary<string, object>>> TablesDataFromJSON(string jsonText)
        {
            return JSONToObject<Dictionary<string, List<Dictionary<string, object>>>>(jsonText);
        }

// 将JSON文本转换成数据行
        /// <param name="jsonText">JSON文本</param>
        public static Dictionary<string, object> DataRowFromJSON(string jsonText)
        {
            return JSONToObject<Dictionary<string, object>>(jsonText);
        }