[英]Parse JSON output in asp.net MVC 3
我想解析C#asp.net mVC3中的JSON字符串,但不了解如何解析我的json字符串。 我的JSON字符串是這樣的:
{"dept":"HR","data":[{"height":5.5,"weight":55.5},{"height":5.4,"weight":59.5},{"height":5.3,"weight":67.7},{"height":5.1,"weight":45.5}]}
碼:
var allData = { dept: deptname, data: arr};
var allDataJson = JSON.stringify(allData);
$.ajax({
url: '<%=Url.Action("funx","Controller")%>',
data: { DJson: allDataJson },
async: false,
cache: false,
type: 'POST',
success: function (data) {
alert("success data: "+data);
}
});
public String funx(string DJson)
{
System.Diagnostics.Debug.WriteLine("Returned Json String:" + DJson);
// var yourObject = new JavaScriptSerializer().Deserialize(DJson);
return "successfull";
}
我是asp.net的新手。 我想解析該字符串並將其保存在數據庫中。
方法1:
使用您的JSON字符串的結構創建兩個類:
public class myobj
{
public string dept;
public IEnumerable<mydata>;
}
public class mydata
{
public int weight;
public int height;
}
然后使用它來解析它:
public static T FromJSON<T>(string str)
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
return serializer.Deserialize<T>(str);
}
像這樣:
myobj obj = MP3_SIOP_LT.Code.Helpers.JSONHelper.FromJSON<myobj>(@"{""dept"":""HR"",""data"":[{""height"":5.5,""weight"":55.5},{""height"":5.4,""weight"":59.5},{""height"":5.3,""weight"":67.7},{""height"":5.1,""weight"":45.5}]}");
結果:
方法2:
如果您不想讓類具有JSON結構,請使用與上面相同的方法,如下所示,但是為了獲得dynamic
對象:
dynamic obj = MP3_SIOP_LT.Code.Helpers.JSONHelper.FromJSON<dynamic>(@"{""dept"":""HR"",""data"":[{""height"":5.5,""weight"":55.5},{""height"":5.4,""weight"":59.5},{""height"":5.3,""weight"":67.7},{""height"":5.1,""weight"":45.5}]}");
結果:
首先為您的json建立模型
public class Size
{
public double height { get; set; }
public double weight { get; set; }
}
public class MyData
{
public string dept { get; set; }
public List<Size> data { get; set; }
}
現在,您可以反序列化json。 內置DataContractJsonSerializer
var serializer = new DataContractJsonSerializer(typeof(MyData));
var data = (MyData)serializer.ReadObject(new MemoryStream(Encoding.UTF8.GetBytes(json)));
或使用Json.Net
var data = JsonConvert.DeserializeObject<MyData>(json);
您甚至可以不創建任何類就采用dynamic
方式
dynamic dynObj = JsonConvert.DeserializeObject(json);
foreach(var item in dynObj.data)
{
Console.WriteLine("{0} {1}", item.height, item.weight);
}
您可以使用NewtonSoft Json.Net進行解析。
嘗試這個
var json = "{\"dept\":\"HR\",\"data\":[{\"height\":5.5,\"weight\":55.5},{\"height\":5.4,\"weight\":59.5},{\"height\":5.3,\"weight\":67.7},{\"height\":5.1,\"weight\":45.5}]}";
var foo = JsonConvert.DeserializeObject<RootObject>(json);
// Check Values
// var department = foo.dept;
// foreach (var item in foo.data)
// {
// var height = item.height;
// var weight = item.weight;
// }
public class Datum
{
public double height { get; set; }
public double weight { get; set; }
}
public class RootObject
{
public string dept { get; set; }
public List<Datum> data { get; set; }
}
Nuget: Json.Net
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