c# json数据解析——将字符串json格式数据转换成对象或实体类

网络中数据传输经常是xml或者json，现在做的一个项目之前调其他系统接口都是返回的xml格式，刚刚遇到一个返回json格式数据的接口，通过例子由易到难总结一下处理过程，希望能帮到和我一样开始不会的朋友。

1.json简单对象

json数据：

{"result":"0","res_info":"ok","queryorder_info":"info"}

我这里是以jsonmy1.txt文件的形式保存在d盘json文件夹下。

 

构造对象：

 public struct ToJsonMy
 {
        public string result { get; set; }  //属性的名字，必须与json格式字符串中的"key"值一样。
        public string res_info { get; set; }
        public string queryorder_info { get; set; }   }

转换过程：

 public static void JsonMy()
        {
            string json = Jsonstr("D:\\json\\jsonmy1.txt");//Jsonstr函数读取json数据的文本txt                      　　　　　　 
            JavaScriptSerializer js = new JavaScriptSerializer();   //实例化一个能够序列化数据的类
            ToJsonMy list = js.Deserialize<ToJsonMy>(json);    //将json数据转化为对象类型并赋值给list
            string result = list.result;                  　　　　　　　
            string res_info = list.res_info;
            string queryorder_info = list.res_info;
        }

 

2.json还包含对象

json数据：jsonmy2.txt

{"result":"0","res_info":"ok","queryorder_info":{"order_num":"5","orderdetail":"ok"}}

构造对象：

public struct ToJsonMy2
        {
            public string result { get; set; }  
            public string res_info { get; set; }
            public queryorder_info queryorder_info;
        }

public struct queryorder_info
        {
            public string order_num { get; set; }
            public string orderdetail { get; set; }
        };

转换过程：

  public static void JsonMy2()
        {
            string json = Jsonstr("D:\\json\\jsonmy2.txt");
            JavaScriptSerializer js = new JavaScriptSerializer();   //实例化一个能够序列化数据的类
            ToJsonMy2 list = js.Deserialize<ToJsonMy2>(json);    //将json数据转化为对象类型并赋值给list
            string result = list.result;    
            string res_info = list.res_info;
            string order_num = list.queryorder_info.order_num;
            string orderdetail = list.queryorder_info.orderdetail;
        }

 

3.json包含对象数组 json数据：jsonmy4.txt

{"result":"0","res_info":"ok","queryorder_info":{"order_num":"5","orderdetail":[{"CFTUin":"769839263","CancelDeadline":"2013-09-12 23:00:00","CheckInDate":"2013-09-12 00:00:00","CheckOutDate":"2013-09-13 00:00:00","CityID":"0101","CurrencyCode":"RMB","HotelID":"00301105","HotelName":"乐家连锁（北京天坛南门店）（原速8酒店（北京天坛南门店）","ListID":"1000000005201308280002999652","PayAmt":"228","PayType":"0","RommsCnt":"1","SPTransID":"65202157","State":"4"},{"CFTUin":"248486133","CancelDeadline":"2013-10-13 23:00:00","CheckInDate":"2013-10-13 00:00:00","CheckOutDate":"2013-10-18 00:00:00","CityID":"0201","CurrencyCode":"RMB","HotelID":"10201314","HotelName":"上海凯顿酒店","ListID":"1000000005201308280002999413","PayAmt":"1140","PayType":"0","RommsCnt":"1","SPTransID":"65197226","State":"4"}]}}

 

构造对象：

 public struct ToJsonMy3
        {
            public string result { get; set; } 
            public string res_info { get; set; }
            public queryorder_info queryorder_info;
        }
  public struct queryorder_info
        {
            public string order_num { get; set; }
            public List<orderdetail> orderdetail;//数组处理       
　　　　 };
 public struct orderdetail
        {
            public string CFTUin { get; set; }
            public string CancelDeadline { get; set; }
            public string CheckInDate { get; set; }
            public string CheckOutDate { get; set; }
            public string CityID { get; set; }
            public string CurrencyCode { get; set; }
            public string HotelID { get; set; }
            public string HotelName { get; set; }
            public string ListID { get; set; }
            public string PayAmt { get; set; }
            public string PayType { get; set; }
            public string RommsCnt { get; set; }
            public string SPTransID { get; set; }
            public string State { get; set; }
        };

转换过程：

 public static void JsonMy4()
        {
            string json = Jsonstr("D:\\json\\jsonmy4.txt");
            JavaScriptSerializer js = new JavaScriptSerializer();   //实例化一个能够序列化数据的类
            ToJsonMy3 list = js.Deserialize<ToJsonMy3>(json);    //将json数据转化为对象类型并赋值给list
            string result = list.result;     
            string res_info = list.res_info;
            string order_num = list.queryorder_info.order_num;
            List<orderdetail> orderdetail = list.queryorder_info.orderdetail;
            string CFTUin = orderdetail[0].CFTUin;
            string HotelName = orderdetail[0].HotelName;
            string ListID = orderdetail[1].ListID;
            string State = orderdetail[2].State;
        }

  

 

出处：https://www.cnblogs.com/echolxl/p/3594112.html

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另外，通过json字符串或xml字符串，生成对应的实体类Class，请查看我的另外一篇文章：Json字符串、Xml字符串转C#实体类Class