ASP.NET MVC HTTPGET操作：數組參數

Question

如何解決這種情況？

請求：http://example.com/test?geoPoints[0][緯度] = 123個& geoPoints [0] [經度] = 1

我的控制器動作：

[HttpGet] 
public HttpResponseMessage Test([FromUri] List<GeoPoint> geoPoints) 

隨着請求http://example.com/test?geoPoints[0].Latitude = 123 & geoPoints [0] .Longitude = 1是好的，但我需要解決第一個ca SE。

請幫忙。對不起，我的英語不好。

Answer 1

您可以創建自定義ModelBinder像這樣（只是參考）：

public class GeoPointModelBinder : IModelBinder 
{ 
    public static Regex regex = new Regex(@"^geoPoints\[\(d+)\]\[(longitude|latitude)\]$", RegexOptions.IgnoreCase); 

    public bool BindModel(HttpActionContext actionContext, ModelBindingContext bindingContext) 
    { 
     var query = actionContext.Request.RequestUri.Query; 

     var parameters = query 
      .Split(new char[] { '&' }, StringSplitOptions.RemoveEmptyEntries) 
      .Select(it => it.Split('=')) 
      .Where(it => regex.IsMatch(it[0])) 
      .ToDictionary(it => it[0], it => it[1]); 

     var points = parameters 
      .Select(it => new GeoPoint()) 
      .ToList(); 

     foreach (var parameter in parameters) 
     { 
      var match = regex.Match(parameter.Key); 
      var firstGroup = match.Groups[1]; 
      var secondGroup = match.Groups[2]; 

      int index = int.Parse(firstGroup.Value); 
      string field = secondGroup.Value; 

      if (string.Equals(field, "latitude", StringComparison.OrdinalIgnoreCase)) 
      { 
       points[index].Latitude = parameter.Value; 
      } 
      else 
      { 
       points[index].Longitude = parameter.Value; 
      } 
     } 

     bindingContext.Model = points; 
     return true; 
    } 
} 
... 

[HttpGet] 
public HttpResponseMessage Test([ModelBinder(typeof(GeoPointModelBinder))]List<GeoPoint> geoPoints) 
{ 
    //... 
}