自已写的Json序列化方法，可以序列话对象的只读属性

/*

    * by zhangguozhan 2015/1/5

    * P2B.Common.CJson.ConvertJson.ObjectToJson<SenderDomainModel>方法无法序列号只读属性。下面的实现填补了这个不足

    */

/// <summary>

/// 将对象转换成JSON字符串

/// </summary>

/// <typeparam name="T"></typeparam>

/// <param name="obj"></param>

/// <returns></returns>

public static string ObjectToJson<T>(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;

}