Dotnet 核心 3.1 未绑定查询参数

如何解决Dotnet 核心 3.1 未绑定查询参数

调用HTTP get 方法时，查询参数未正确填写。

让我用代码解释一下。

[HttpGet]
public async Task<IActionResult> GetTasks(Guid propertyId,[FromQuery] TaskFilterParams filterParams,[FromQuery] SortingParams sortingParams,[FromQuery] PagingParams pagingParams)
{
 // Do some stuff,not important
}

因此我们使用以下网址调用此端点：someurl.com/api/v1/properties/[some-guid]/tasks?&roomClass=Single&category=Cleaning 如您所见，我们只提供了三个值：GUID、房间类型和任务类别。排序和分页参数为空。问题是'category'参数没有填写，一直为null，而其他参数填写正确。无论我们尝试什么（url编码，重新排列参数的顺序，......）。然而，真正的问题是，如果我们重新启动服务，它有时会工作一段时间。但每隔一段时间它就会失败，我们需要再次重新启动一切。

有人遇到过同样的问题吗？或者，更好的是，一个解决方案？

PS：代码在 AKS 的 docker 容器中运行（来自 mcr.microsoft.com/dotnet/core/aspnet:3.1）。

 [DBG] Get tasks parameters: PropertyId: [some-guid],TaskFilterParams:{"Category": null,"RoomClass": {"Value": "Single","Operator": "Equal","$type": "FilterParam`1"},"$type": "TaskFilterParams"}

public class TaskFilterParams
{
   public FilterParam<IssueCategory> Category { get; set; }
   public FilterParam<RoomClass> RoomClass { get; set; }
   public FilterParam<Guid?> Room { get; set; }
}

public abstract class FilterParam
{
    public FilterOperator Operator { get; set; }
}

[TypeDescriptionProvider(typeof(FilterParamTypeDescriptionProvider))]
[JsonObject]
public class FilterParam<T> : FilterParam
{
    public T Value { get; set; }

    public static bool TryParse(string s,out FilterParam<T> result)
    {
        result = default(FilterParam<T>);
        var filterOperators = Enum.GetValues(typeof(FilterOperator)).Cast<FilterOperator>();
        foreach (var filterOperatorString in filterOperators.Select<FilterOperator,string>(x => x.ToFilterOperatorString()).OrderByDescending(x => x.Length))
        {
            if (s.StartsWith(filterOperatorString))
            {
                if (s.TryParse(filterOperatorString,out result))
                {
                    return true;
                }

                return false;
            }
        }

        return false;
    }
}

public enum IssueCategory
{
    Cleaning = 0,inspection = 1,Maintenance = 2
}
public enum RoomClass
{
     Single = 0,Double = 1,Family = 2
}

更新：我们添加了更多日志记录。查询字符串中似乎存在数据，但模型未正确绑定。

Log.Debug("Query: {@query}",HttpContext.Request.Query);
            Log.Debug(
                "Get tasks parameters: PropertyId:{@propertyId},TaskFilterParams:{@filterParams},SortingParams:{@sortingParams},PagingParams:{@pagingParams}",propertyId,filterParams,sortingParams,pagingParams);

[16:51:35 DBG] Query: [{"Key": "category","Value": ["Cleaning"],"$type": "keyvaluePair`2"},{"Key": "roomClass","Value": ["Single"],"$type": "keyvaluePair`2"}]
[16:51:35 DBG] Get tasks parameters: PropertyId:[some-guid],"$type": "TaskFilterParams"}