C# Json 解析，针对数字开头变量Json字符串转模型（Model）

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namespace 解析数字开头的变量JSON {     class Program     {         static void Main(string[] args)         {             string strJson = "{\"1st_attempt\":\"2021-02-09 16:32:15\",\"2nd_attempt\":\"2021-02-09 16:33:18\"}";             var objModel = JsonDictionaryModel<ResModels>(strJson);         }            public class ResModels         {             public string _1st_attempt { get; set; }             public string _2nd_attempt { get; set; }         }             public static T JsonDictionaryModel<T>(string strJson)         {             Dictionary<string, object> ProductDetailList = JsonConvert.DeserializeObject<Dictionary<string, object>>(strJson);             return ParseDictionaryToModel<T>(ProductDetailList);         }         public static T ParseDictionaryToModel<T>(Dictionary<string, object> dict)         {             T obj = default(T);             obj = Activator.CreateInstance<T>();             //根据Key值设定 Columns             foreach (KeyValuePair<string, object> item in dict)             {                 PropertyInfo prop = obj.GetType().GetProperty(item.Key);                 if (Equals(prop, null))                 {                     prop = obj.GetType().GetProperty("_"+item.Key);                 }                 if (!Equals(item.Value,null))                 {                     object value = item.Value;                     //Nullable 获取Model类字段的真实类型                     Type itemType = Nullable.GetUnderlyingType(prop.PropertyType) == null ? prop.PropertyType : Nullable.GetUnderlyingType(prop.PropertyType);                     //根据Model类字段的真实类型进行转换                     prop.SetValue(obj, Convert.ChangeType(value, itemType), null);                 }             }             return obj;         }     } }

 https://www.cnblogs.com/volts0302/p/5195086.html

https://blog.csdn.net/weixin_33853794/article/details/92936314

 

改进版：

public static T JsonDictionaryModel<T>(string strJson)
        {
            Dictionary<string, object> ProductDetailList = JsonConvert.DeserializeObject<Dictionary<string, object>>(strJson);
            return ParseDictionaryToModel<T>(ProductDetailList);
        }
        public static T ParseDictionaryToModel<T>(Dictionary<string, object> dict)
        {
            T objModel = Activator.CreateInstance<T>();
            foreach (KeyValuePair<string, object> item in dict)
            {
                PropertyInfoMethod(objModel, item.Key, item.Value);
            }
            return objModel;
        }
//这里实在想不到办法优化了
        public static void PropertyInfoMethod(object objModel, string keyName, object objValue)
        {
            PropertyInfo prop = objModel.GetType().GetProperty(keyName) ?? objModel.GetType().GetProperty("_" + keyName);
            if (!Equals(null, prop)&&!Equals(null, objValue))
                prop.SetValue(objModel, Convert.ChangeType(objValue, Nullable.GetUnderlyingType(prop.PropertyType) ?? prop.PropertyType), null);
        }