c# json数据解析——将字符串json格式数据转换成对象或实体类

网络中数据传输常常是xml或者json，如今作的一个项目以前调其余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，经过例子由易到难总结一下处理过程，但愿能帮到和我同样开始不会的朋友。

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"值同样。
        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();   //实例化一个可以序列化数据的类
            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();   //实例化一个可以序列化数据的类
            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();   //实例化一个可以序列化数据的类
            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，经过json字符串或xml字符串，生成对应的实体类Class，请查看个人另一篇文章：Json字符串、Xml字符串转C#实体类Class