动态创建对象的实现

public enum UpdateModelType : int
    {
        [RequestAttribute("eval_model_stat.json", typeof(ModelStatRequest))]
        MODEL_STAT = 0,
        /// <summary>
        /// 财务历史 eval_fin_rpt_hyr.json
        /// </summary>
        [RequestAttribute("eval_fin_rpt_hyr.json", typeof(FinRptHyrRequest))]
        FIN_RPT_HYR = 1,

        /// <summary>
        /// 资产负债表 eval_fin_bs.json
        /// </summary>
        [RequestAttribute("eval_fin_bs.json", typeof(FinBsRequest))]
        FIN_BS = 2,

        /// <summary>
        /// 融资预测 eval_fin_fund.json
        /// </summary>
        [RequestAttribute("eval_fin_fund.json", typeof(FinFundRequest))]
        FIN_FUND = 3,

        /// <summary>
        /// 财务分析 eval_fin_analysis.json
        /// </summary>
        [RequestAttribute("eval_fin_analysis.json", typeof(FinAnalysisRequest))]
        FIN_ANALYSIS = 4,

        /// <summary>
        /// 杜邦分析 eval_fin_dupont.json
        /// </summary>
        [RequestAttribute("eval_fin_dupont.json", typeof(FinDupontRequest))]
        FIN_DUPONT = 5,

        /// <summary>
        /// 绝对估值 eval_fin_absolute.json
        /// </summary>
        [RequestAttribute("eval_fin_absolute.json", typeof(FinAbsoluteRequest))]
        FIN_ABSOLUTE = 6
    }

public class RequestAttribute:Attribute
    {
        public string Config { get; set; }
        public Type RequestBodyType { get; set; }
        public RequestAttribute(string config,Type requestBodyType)
        {
            this.Config = config;
            this.RequestBodyType = requestBodyType;
        }
    }

Config表示取值规则，RequestBodyType要创建的数据类型

private RequestAttribute GetRequestAttrubute(UpdateModelType type)
        {
            RequestAttribute result = null;
            FieldInfo fieldInfo = type.GetType().GetField(type.ToString());
            RequestAttribute[] requestAttributes = (RequestAttribute[])fieldInfo.GetCustomAttributes(typeof(RequestAttribute), false);
            if (requestAttributes != null && requestAttributes.Length > 0)
            {
                result = requestAttributes[0];
            }
            return result;
        }

private Dictionary<string, PropertyInfo> GetProperties(Type t)
        {
            if (cacheProperties.ContainsKey(t.FullName))
            {
                return cacheProperties[t.FullName];
            }

            Dictionary<string, PropertyInfo> dicResult = new Dictionary<string, PropertyInfo>();

            var properties = t.GetProperties();
            foreach (var pro in properties)
            {
                // 优先从JsonPropertyAttribute取得别名
                var customAttrubutes = pro.GetCustomAttributes(typeof(JsonPropertyAttribute), false);
                string key = string.Empty;
                if (customAttrubutes.Length > 0)
                {
                    key = (customAttrubutes[0] as JsonPropertyAttribute).PropertyName;
                }
                else
                {
                    key = pro.Name;
                }
                dicResult.Add(key, pro);

                // 如果是复合类型，则递归取得子属性
                if (pro.PropertyType != typeof(string) && pro.PropertyType.BaseType != typeof(ValueType))
                {
                    var subDic = GetProperties(pro.PropertyType);
                    foreach (var subKey in subDic.Keys)
                    {
                        dicResult.Add(key + "." + subKey, subDic[subKey]);
                    }
                }
            }

            if (dicResult.Count > 0)
            {
                cacheProperties.Add(t.FullName, dicResult);
            }
            return dicResult;
        }

GetProperties方法：讲属性取出，例如：class A{　　public int No{get;set;}   public B B{get;set;}}class B{    public int b{get;set;}    public string name{get;set;}}

取出结果为：  No  B.b  B.name

待续....

RequestAttribute的json表示配置文件位置，