从Json字符串获取特定数据

Question

我有JSON数据。

{"title":"",
"query":"pakistan",
"for":"daily",
"method":3,
"prayer_method_name":"University Of Islamic Sciences,
 Karachi (Hanafi)",
"daylight":"0",
"timezone":"5",
"map_image":"http:\/\/maps.google.com\/maps\/api\/staticmap?center=30.375321,69.345116&sensor=false&zoom=13&size=300x300",
"sealevel":"1376",
"today_weather":{"pressure":null,"temperature":null},
"link":"http:\/\/muslimsalat.com\/pakistan",
"qibla_direction":"258.33",
"latitude":"30.375321",
"longitude":"69.345116",
"address":"","city":"",
"state":"",
"postal_code":"",
"country":"Pakistan",
"country_code":"PK",
"items":[{"date_for":"2016-6-9","fajr":"3:43 am","shurooq":"5:09 am","dhuhr":"12:21 pm","asr":"5:15 pm","maghrib":"7:34 pm","isha":"9:00 pm"}],
"status_valid":1,
"status_code":1,
"status_description":"Success."}

例如，我只需要来自JSON的具体数据，

“fajr”：“凌晨3:43”，"shurooq":"5:09 am"，"dhuhr":"12:21 pm"，"asr":"5:15 pm"，“magh肋骨”：“7:34 pm"，"isha":"9:00”

我怎样才能做到这一点？

Answer 1

您可以使用JSON序列化程序(如http://www.newtonsoft.com/json )。

那么您将有以下模型：

public class Item
{
    public string date_for { get; set; }
    public string fajr { get; set; }
    public string shurooq { get; set; }
    public string dhuhr { get; set; }
    public string asr { get; set; }
    public string maghrib { get; set; }
    public string isha { get; set; }
}

public class ItemContainer
{
    public List<Item> Items { get; set; }
}

使用json.net，您可以检索值

var data = JsonConvert.DeserializeObject<ItemContainer>(your json);
if (data.Items.Count > 0)
{
   var fajr = data.Items[0].fajr;
   var dhuhr = data.Items[0].dhuhr; 
   ...
}

Answer 2

您必须将JSON解析为一个对象。为此，您可以使用JSON.NET。

下面是如何将JSON字符串解析为动态对象的示例：

string source = "YOUR JSON";
dynamic data = JObject.Parse(source);
Console.WriteLine(data.fajr);
Console.WriteLine(data.shurooq);
Console.WriteLine(data.dhuhr);
etc...

Answer 3

假设您的json存储在MyData变量上：

因此，取值如下：

• MyData.items =>返回对象
• MyData.items.fajr =>返回字符串
• MyData.items.shurooq =>返回字符串
• MyData.items.dhuhr =>返回字符串
• MyData.items.asr =>返回字符串
• MyData.items.maghrib =>返回字符串
• MyData.items.isha =>返回字符串

使用newtonsoft.json：

var shalaSchedule = JsonConvert.DeserializeObject<Dictionary<string, object>>(MyData);

这样您就可以从shalaSchedule["items"][0]["magrib"].toString()读取数据；