将对象转换为json字符串

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 #region sta+ 对于字典数据生成json字符串        /// <summary>        /// 对于字典数据生成json字符串        /// </summary>        /// <param name="value"></param>        /// <returns></returns>        public static string GetJson(Dictionary<string, string> value)        {            StringBuilder sb = new StringBuilder();            sb.Append("{");            foreach (var item in value.Keys)            {                sb.Append("\"" + item + "\":\"" + value[item] + "\"");                sb.Append(",");            }            sb.Remove(sb.Length - 1, 1).Append("}");            return sb.ToString();        }        #endregion        #region sta+ 集合生成json        /// <summary>        /// 集合生成json        /// </summary>        /// <returns></returns>        public static string ListObjectToJson<T>(List<T> list)        {            StringBuilder sb = new StringBuilder();            if (list == null) { return "[]"; }            if (list.Count > 0)            {                Type type = list[1].GetType();                if (list.Count == 1)                {                    sb.Append(ObjectToJson<T>(list[0]));                }                else                {                    sb.Append("[");                    foreach (T item in list)                    {                        sb.Append(ObjectToJson<T>(item));                        sb.Append(",");                    }                    sb.Remove(sb.Length - 1, 1).Append("]");                }            }            else            {                sb.Append("[]");            }            return sb.ToString();        }        #endregion        #region sta+ 生成对象的json格式        /// <summary>        /// 生成对象的json格式        /// </summary>        /// <typeparam name="T"></typeparam>        /// <param name="tt"></param>        /// <returns></returns>        public static string ObjectToJson<T>(T tt)        {            StringBuilder sb = new StringBuilder();            Type t = tt.GetType();            PropertyInfo[] proterties = t.GetProperties(BindingFlags.Instance | BindingFlags.Public);            if (proterties.Length <= 0)            {                return default(string);            }            sb.Append("{");            foreach (var item in proterties) //属性值获取            {                string name = item.Name;                var value = item.GetValue(tt, null);                sb.Append("\"" + name + "\":");                //是否是值类型或者是string类型                if (item.PropertyType.IsValueType || item.PropertyType.Name.ToLowerInvariant().StartsWith("string"))                {                    if ((value is DateTime) && Convert.ToDateTime(value).Year == 1)                    {                        sb.Append("\"\"");                    }                    else                    {                        sb.Append("\"" + value + "\"");                    }                    sb.Append(",");                }                else                {                    //是泛型类（暂不能判断是集合类）未实现                    if (item.PropertyType.IsClass && item.PropertyType.IsGenericType)                    {                        List<T> list = value as List<T>;                        sb.Append(ListObjectToJson<T>(list));                        // string typename = item.PropertyType.GetGenericArguments()[0].Name;                        //ListType(value, typename,ref sb);                    }//如果是数组                    else if (item.PropertyType.IsClass && item.PropertyType.IsArray)                    {                        sb.Append("[");                        foreach (var i in (value as Array))                        {                            sb.Append(i);                            sb.Append(",");                        }                        sb.Remove(sb.Length - 1, 1).Append("]");                    }                    else                    {                        ObjectToJson(value);                    }                    sb.Append(",");                }            }            sb.Remove(sb.Length - 1, 1).Append("}");            return sb.ToString();        }        #endregion
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