/*    * by zhangguozhan 2015/1/5    * P2B.Common.CJson.ConvertJson.ObjectToJson
     
      方法无法序列号只读属性。下面的实现填补了这个不足    *//// 
      
/// 将对象转换成JSON字符串/// 
/// 
      /// 
      /// 
      public static string ObjectToJson
      
       (T obj) where T : class{    if (obj == null)        return "object null";    string json = string.Empty;    var properties = obj.GetType().GetProperties();    if (properties == null || !properties.Any()) return json;    foreach (var property in properties)    {        if (!property.CanRead) continue;        if (property.MemberType != System.Reflection.MemberTypes.Property) continue;        string pName = property.Name;        var pValue = property.GetValue(obj, null);        if (/*property.PropertyType*/pValue is System.ValueType            || pValue is string)        {            json += string.Format(",\"{0}\":\"{1}\"", pName, pValue == null ? "null" : pValue);        }        else        {            string subValue = string.Empty;            if (pValue is System.Collections.IList)            {                var list = (pValue as System.Collections.IList);                if (list.Count > 0)                {                    string subJsons = string.Empty;                    foreach (var item in list)                    {                        subJsons += "," + ObjectToJson(item);                    }                    if (!string.Empty.Equals(subJsons))                        subValue = subJsons.Substring(1);                }            }            else            {                subValue = ObjectToJson(pValue);            }            if (!string.Empty.Equals(subValue))            {                json += string.Format(",\"{0}\":[{1}]", pName, subValue);            }        }    }    if (json.Length > 0)        json = "{
    " + json.Substring(1) + "}";    return json;}