自定义实现Json字符串向C#对象转变的方法

这里使用Atrribute的方式实现了Json字符串向C#对象的转变。因为功能局限，此版本只是针对于Json字符串,如"response":"Hello","id":21231513,"result":100,"msg":"OK."; 而不是Json数组。这里的Atrribute是作用在属性上，像NHibernate中的Atrribute一样，是在运行时通过反射来获取这个属性对应于Json字符串中的哪个key.

        public string Name
        {
            get { return _Name; }
            set { _Name = value; }
        }
    }
}
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接下来是这个转换工具中的核心代码，主要是分解并且分析Json字符串中key与value, 并且通过反射获得对象中的各个对应属性并且赋值。

            PropertyInfo[] properties = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance);

            T entity = new T();
            foreach (PropertyInfo property in properties)
            {
                object[] propertyAttrs = property.GetCustomAttributes(false);
                for (int i = 0; i < propertyAttrs.Length; i++)
                {
                    object propertyAttr = propertyAttrs[i];
                    if (propertyAttr is JsonFieldAttribute)
                    {
                        JsonFieldAttribute jsonFieldAttribute = propertyAttr as JsonFieldAttribute;
                        foreach (KeyValuePair<string ,string> item in dic)
                        {
                            if (item.Key == jsonFieldAttribute.Name)
                            {
                                Type t = property.PropertyType;
                                property.SetValue(entity, ToType(t, item.Value), null);
                                break;
                            }
                        }
                    }
                }
            }
            return entity;
        }

        private string Filter(string str)
        {
            if (!(str.StartsWith("\"") && str.EndsWith("\"")))
            {
                return str;
            }
            else
            {
                return str.Substring(1, str.Length - 2);
            }
        }

        public object ToType(Type type, string value)
        {
            if (type == typeof(string))
            {
                return value;
            }

            MethodInfo parseMethod = null;

            foreach (MethodInfo mi in type.GetMethods(BindingFlags.Static
                | Bindin