我需要解析以下 JSON 格式的一些数据:
{
"status":0,
"timestamp":"8:20pm",
"routes":[
{
"directions":[
"E Towne",
"ETP"
],
"routeID":"30"
},
{
"directions":[
"Johnson",
"Observatory"
],
"routeID":"81"
}
]
}
使用 json.net,我想获得以下输出:
30 E Towne – ETP
81 Johnson – Observatory
使用下面的代码,我得到以下不正确的输出:
30 E Towne – ETP
81 E Towne – ETP
如何将方向数组项写出到相应的 routeID 项?我的代码:
public class Route
{
public string routeID { get; set; }
public string directions { get; set; }
}
private void routeClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
string jsonResults_routes = e.Result;
JObject routeData = JObject.Parse(jsonResults_routes);
JArray routeIdArray = (JArray)routeData["routes"];
JArray routeDirections = (JArray)routeData["routes"][0]["directions"];
List<Route> l = new List<Route>();
for (int i = 0; i < routeIdArray.Count; i++)
{
Route BusRoutes = new Route();
JObject routeIDarrayObject = (JObject)routeIdArray[i];
BusRoutes.routeID = (string)routeIDarrayObject["routeID"];
string sep = " - ";
string bothDirections = String.Join(sep, routeDirections);
List<string> sc = new List<string>();
string[] direction = new string[]{bothDirections};
sc.AddRange(direction);
foreach (string direx in sc)
{
BusRoutes.directions = direx;
}
l.Add(BusRoutes);
}
var newList = l.OrderBy(x => x.routeID).ToList();
lbRoutesData.ItemsSource = newList;
}
最佳答案
@competent_tech 的分析是正确的。如果我可以提议,我认为如果您使用实际对象会感觉更自然。例如:
public class RouteInfo
{
public List<string> Directions { get; set; }
public string RouteID { get; set; }
}
public class RouteData
{
public int Status { get; set; }
public string Timestamp { get; set; }
public List<RouteInfo> Routes { get; set; }
}
在你的方法中:
var routeData = JsonConvert.DeserializeObject<RouteData>(e.Result);
return routeData.Routes
.Select(r => new Route
{
routeId = r.RouteID,
directions = String.Join(" - ", r.Directions)
})
.OrderBy(r => r.routeId)
.ToList();
或者以其他方式更自然地操作您的类型对象。
编辑:有关基于 JSON 字符串生成类的简单方法,请转至 json2csharp .
关于c# - 使用 json.NET 和 C# 解析 JSON 数组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17493906/