c# JSON反序列化问题

Question

C#JSON.net反序列化

Answer 1

            string jsonStr = @"{""fruits"":{""a"":""orange"",""b"":""banana"",""c"":""apple""},""name"":{""z"":""zhangsan"",""l"":""lisi""}}";            JavaScriptSerializer serializer = new JavaScriptSerializer();            Dictionary<string, object> json = serializer.DeserializeObject(jsonStr) as Dictionary<string, object>;            Dictionary<string, object> obj = json["fruits"] as Dictionary<string, object>;            Console.WriteLine(obj["a"]);            Console.ReadLine();
看看

Answer 2

既然你诚心诚意的问了，哥还是大发慈悲的告诉你好了。
捂好蛋蛋，再看下面，不然会很疼的
        [DataContract]
        public class DanTengObj
        {
            [DataMember(Order = 1, Name = "fruits")]
            public Fruits fruits { get; set; }
            [DataMember(Order = 2, Name = "name")]
            public Name name { get; set; }            [DataContract]
            public class Fruits
            {
                [DataMember(Order = 1, Name = "a")]
                public string a { get; set; }
                [DataMember(Order = 2, Name = "b")]
                public string b { get; set; }
                [DataMember(Order = 3, Name = "c")]
                public string c { get; set; }
            }            [DataContract]
            public class Name
            {
                [DataMember(Order = 1, Name = "z")]
                public string z { get; set; }
                [DataMember(Order = 1, Name = "l")]
                public string l { get; set; }
            }
        }        static void DanTengJsonTest()
        {
            string jsonStr = @"{""fruits"":{""a"":""orange"",""b"":""banana"",""c"":""apple""},""name"":{""z"":""zhangsan"",""l"":""lisi""}}";            DataContractJsonSerializer js = new DataContractJsonSerializer(typeof(DanTengObj));            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonStr)))
            {
                DanTengObj obj = js.ReadObject(ms) as DanTengObj;
                Console.WriteLine(obj.fruits.a);
            }
        }

Answer 3

C#里面对json的处理有2种，JavaScriptSerializer和DataContractJsonSerializer。
JavaScriptSerializer读出来就是key-value pair这种Dictionary<string, object>的东西，这个比较通用。
DataContractJsonSerializer类似于其他的Serializer，比如XMLSerializer一类的，是对象序列化/反序列化用的，所以你看到上面要先定义一个Obj对象，把json字串里面的key都定义成属性，最后执行反序列化就出来了一个Obj。

Answer 4

用DataContractJsonSerializer很方便的

Answer 5

我在最后取值的之后出错的，提示    未将对象引用设置到对象的实例。
string s;
            DataContractJsonSerializer js = new DataContractJsonSerializer(typeof(GetAccessCompanyM));            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(html)))
            {
                GetAccessCompanyM obj = js.ReadObject(ms) as GetAccessCompanyM;
                //Console.WriteLine(obj.fruits.a);
                s = obj.result.toreturn.memberId.ToString();
            }

Answer 6

就是这句话s = obj.result.toreturn.memberId.ToString();