C#字符串转成JSON对象，并解析出里面的数据

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(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;

}

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"

"ListID":"1000000005201308280002999413","PayAmt":"1140","PayType":"0","RommsCnt":"1","SPTransID":"65197226","State":"4"}]}}

你要先分析boday 这个字符串，先去确认它是不是个json格式的数据，然后根据它的结构创建一个相应的类（假设叫XXX类），之后才能进行json的解析：

XXX xxx=JsonConvert.DeserializeObject(boday);

JavascriptSerializble

给你一个网址，你看下如何转化的。http://www.cnblogs.com/sun-sjmeng/archive/2012/09/08/2660559.html

可考虑使用第三方dll：NewtonSoft.Json.dll