多重JSON解析,求答案.

Question

jsonc#

Answer 1

class city{
 {
                     [DataMember]
public string city_name;// "安庆",
                     [DataMember]
public string city_code;// "AH_AnQing",
                     [DataMember]
public string abbr;// "皖",
                     [DataMember]
public string engine;// 0,
                     [DataMember]
public string engineno;// 0,
                     [DataMember]
public string classa;// 1,
                     [DataMember]
public string classno;// 6,
                     [DataMember]
public string regist;// 0,
                     [DataMember]
public string registno;// 0
                 }
class province{
[DataMember]
public string province_code;// "AH",
             [DataMember]
public string province;// "安徽",
             [DataMember]
public city[] citys;//[]
}class result{
 [DataMember]
public string error_code;// 0,
     [DataMember]
public string reason;// "Success",
     [DataMember]
public province result;// [
}

Answer 2

  string s = "";
            StreamReader sr = new StreamReader("3.json");
            s = sr.ReadToEnd();
            sr.Close();
            JObject jo = (JObject)JsonConvert.DeserializeObject(s);
            JToken torrentsArray = (JToken)jo["result"];
            foreach (JToken result in torrentsArray)
            {
                MessageBox.Show(result["province_code"].ToString());   
                JArray jar = JArray.Parse(result["citys"].ToString());
                for (var i = 0; i < jar.Count; i++)
                {
                    JObject j = JObject.Parse(jar[i].ToString());
                    MessageBox.Show(j["city_name"].ToString());     
                    MessageBox.Show(j["city_code"].ToString());                          
                }               
            }

Answer 3

已解决,原因是DataContractJsonSerializer 对多重JSON支持性差.用Newtonsoft.Json OK
附一点代码.
 static void Main(string[] args)
        {
            string jsonBook = getJson();
            vHearder bk1 = JsonConvert.DeserializeObject<vHearder>(jsonBook);
            Console.WriteLine(bk1.ToString());
        }
        private static string getJson()
        {
            try
            {
                string filepath = @"F:\Province.txt";
                System.IO.FileInfo fi = new System.IO.FileInfo(filepath);
                System.IO.StreamReader sr = fi.OpenText();
                return sr.ReadToEnd();
            }
            catch (Exception localIOException)
            {
              
            }
            return "";
        }
    }    public class vHearder
    {
        public string error_code { get; set; }        public string reason { get; set; }        public ProvinceList[] result { get; set; }
                }
    public class ProvinceList
    {
        public string province_code  { get; set; } 
        public string province { get; set; }
        public ProvinceCitys[] citys { get; set; }        
    }
    public class ProvinceCitys
    {
        public string city_name { get; set; } 
        public string city_code{ get; set; }  
        public string abbr{ get; set; }  
        public int engine{ get; set; }  
        public int engineno{ get; set; }  
        public int classa{ get; set; }    
        public int classno{ get; set; }   
        public int regist{ get; set; }   
        public int registno{ get; set; }    
    }