C#處理JSON 資料
阿新 • • 發佈：2019-02-17
網路中資料傳輸經常是xml或者json，現在做的一個專案之前調其他系統介面都是返回的xml格式，剛剛遇到一個返回json格式資料的介面，通過例子由易到難總結一下處理過程，希望能幫到和我一樣開始不會的朋友。
一、C#處理簡單json資料
json資料：
{"result":"0","res_info":"ok","queryorder_info":"info"}
我這裡是以jsonmy1.txt檔案的形式儲存在d盤json資料夾下。
構造物件：
public struct ToJsonMy
{
public string result { get; set; } //屬性的名字，必須與json格式字串中的"key"值一樣。
public string res_info { get; set; }
public string queryorder_info { get; set; }
}public static void JsonMy()
{
string json = Jsonstr("D:\\json\\jsonmy1.txt");//Jsonstr函式讀取json資料的文字txt
JavaScriptSerializer js = new JavaScriptSerializer(); //例項化一個能夠序列化資料的類
ToJsonMy list = js.Deserialize<ToJsonMy>(json); //將json資料轉化為物件型別並賦值給list
string result = list.result;
string res_info = list.res_info;
string queryorder_info = list.res_info;
}二、C#處理包含物件的json資料
json資料：jsonmy2.txt
{"result":"0","res_info":"ok","queryorder_info":{"order_num":"5","orderdetail":"ok"}}
構造物件：
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; }
};轉換過程：
public static void JsonMy2()
{
string json = Jsonstr("D:\\json\\jsonmy2.txt");
JavaScriptSerializer js = new JavaScriptSerializer(); //例項化一個能夠序列化資料的類
ToJsonMy2 list = js.Deserialize<ToJsonMy2>(json); //將json資料轉化為物件型別並賦值給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;
}
三、C#處理包含物件、陣列的json資料
json資料：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":"樂家連鎖（北京天壇南門店）（原速8酒店（北京天壇南門店）","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":"上海凱頓酒店","ListID":"1000000005201308280002999413","PayAmt":"1140","PayType":"0","RommsCnt":"1","SPTransID":"65197226","State":"4"}]}}
構造物件：
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;//陣列處理
};
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; }
};
轉換過程：
public static void JsonMy4()
{
string json = Jsonstr("D:\\json\\jsonmy4.txt");
JavaScriptSerializer js = new JavaScriptSerializer(); //例項化一個能夠序列化資料的類
ToJsonMy3 list = js.Deserialize<ToJsonMy3>(json); //將json資料轉化為物件型別並賦值給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;
}
在專案中也遇到了使用JSON的情況，就把轉化過程寫一下。
1.從資料庫獲取的json資料為：
[{"ACTIONVALUE":"-1","CONTENT":"","DEVID":"30000449636001","DEVNAME":"#1空調","DEVTYPE":"46","EVENTTYPE":"","GRIDCODE":"","ISAUTO":"false","MEASURENAME":"通用.低風","MEASURETAG":"GEN.CtrlLowWind","STREAMTYPE":null,"TIMESPAN":""},{"ACTIONVALUE":"0","CONTENT":"","DEVID":"30000449660712","DEVNAME":"#1風機","DEVTYPE":"56","EVENTTYPE":"","GRIDCODE":"","ISAUTO":"false","MEASURENAME":"風機開關","MEASURETAG":"GEN.UnibitCtrl","STREAMTYPE":null,"TIMESPAN":""},{"ACTIONVALUE":"1","CONTENT":"","DEVID":"30000449660710","DEVNAME":"#1警笛","DEVTYPE":"57","EVENTTYPE":"","GRIDCODE":"","ISAUTO":"false","MEASURENAME":"警笛開關","MEASURETAG":"GEN.UnibitCtrl","STREAMTYPE":null,"TIMESPAN":""},{"ACTIONVALUE":"1","CONTENT":"","DEVID":"30000449660708","DEVNAME":"#1燈光","DEVTYPE":"45","EVENTTYPE":"","GRIDCODE":"","ISAUTO":"true","MEASURENAME":"燈光開光","MEASURETAG":"GEN.UnibitCtrl","STREAMTYPE":null,"TIMESPAN":""},{"ACTIONVALUE":"66","CONTENT":"","DEVID":"30000449667767","DEVNAME":"hik1","DEVTYPE":"49","EVENTTYPE":"","GRIDCODE":"110100000103010001","ISAUTO":"true","MEASURENAME":"","MEASURETAG":"GEN.PreSet","STREAMTYPE":"150","TIMESPAN":""},{"ACTIONVALUE":"-1","CONTENT":"","DEVID":"30000449667767","DEVNAME":"hik1","DEVTYPE":"49","EVENTTYPE":"","GRIDCODE":"110100000103010001","ISAUTO":"true","MEASURENAME":"","MEASURETAG":"GEN.VideoRecord","STREAMTYPE":"150","TIMESPAN":""}]
2.構造實體物件：
public class ActionParam
{
//[{"ACTIONVALUE":"1","CONTENT":"","DEVID":"30000449660708","DEVNAME":"#1燈光","DEVTYPE":"45","EVENTTYPE":"","GRIDCODE":"","ISAUTO":"true","MEASURENAME":"燈光開光","MEASURETAG":"GEN.UnibitCtrl","STREAMTYPE":null,"TIMESPAN":""}]
public int ACTIONVALUE { get; set; }
public string CONTENT { get; set; }
public string DEVID { get; set; }
public string DEVNAME { get; set; }
public string DEVTYPE { get; set; }
public string EVENTTYPE { get; set; }
public string GRIDCODE { get; set; }
public bool ISAUTO { get; set; }
public string MEASURENAME { get; set; }
public string MEASURETAG { get; set; }
public string STREAMTYPE { get; set; }
public string TIMESPAN { get; set; }
}
3.轉化為C#中宣告的資料格式：
JavaScriptSerializer js = new JavaScriptSerializer(); //例項化一個能夠序列化資料的類 List<ActionParam> listDetail = js.Deserialize<List<ActionParam>>(actionParam);
以為json字串是陣列格式，所以js.Deserialize<T>()泛型中使用List<ActionParam>.