错误： System.ArgumentException：多映射错误：未找到 splitOn 列“Id” - 请确保您的 splitOn 参数已设置且顺序正确（参数“splitOn”）。
当我在管理员角色上使用检查 IdentityRoles 时会发生这种情况。如果您删除所有检查和所有与此相关的逻辑，那么一切都会开始工作。请参阅下面的示例。
GetTransportationRequestQueryHandler代码：
internal sealed class GetTransportationRequestQueryHandler
: IQueryHandler<GetTransportationRequestQuery, IReadOnlyList<GetTransportationRequestResponse>>
{
private readonly ISqlConnectionFactory _sqlConnectionFactory;
public GetTransportationRequestQueryHandler(ISqlConnectionFactory sqlConnectionFactory)
{
_sqlConnectionFactory = sqlConnectionFactory;
}
public async Task<Result<IReadOnlyList<GetTransportationRequestResponse>>> Handle(
GetTransportationRequestQuery request, CancellationToken cancellationToken)
{
string sqlString =
"""
SELECT
a.id AS Id,
a.created_by AS CreatedBy,
a.created_on_utc AS CreatedOnUtc,
a.last_modified_date_on_utc AS LastModifiedDateOnUtc,
a.last_modified_by AS LastModifiedBy,
a.type_of_request AS TypeOfRequest,
a.customs_clearance AS CustomsClearance,
a.delivery_conditions AS DeliveryConditions,
a.cargo_readiness_period AS CargoReadinessPeriod,
a.deadline_for_submitting_commercial_offer AS DeadlineForSubmittingCommercialOffer,
a.type_of_cargo AS TypeOfCargo,
a.type_of_packaging AS TypeOfPackaging,
a.container_type AS ContainerType,
a.places_in_container AS PlacesInContainer,
a.loading_in_one_container_net AS LoadingInOneContainerNeT,
a.number_of_containers AS NumberOfContainers,
a.weight_of_one_place AS WeightOfOnePlace,
a.loading_per_container_gross_ton AS LoadingPerContainerGrossTon,
a.port_of_shipment AS PortOfShipment,
a.transshipment_port AS TransshipmentPort,
a.place_of_delivery AS PlaceOfDelivery,
a.cargo_pickup_address AS CargoPickupAddress,
a.note AS Note,
a.is_visible AS IsVisible,
a.index AS Index
FROM transportation_request AS a
""";
if (!request.IdentityUser.IdentityRoles.Contains("Administrator"))
{
var firstIndexOfWord = IndexOfFirstLetter(sqlString, "a.created_by");
var lastIndexOfWord = IndexOfLastLetter(sqlString, "LastModifiedBy,\r\n ");
sqlString = sqlString.Remove(firstIndexOfWord, lastIndexOfWord - firstIndexOfWord);
}
using var connection = _sqlConnectionFactory.CreateConnection();
var transportationRequestResponse = await connection.QueryAsync<GetTransportationRequestResponse>(
sqlString,
new[]
{
typeof(Guid),
request.IdentityUser.IdentityRoles.Contains("Administrator") ? null : typeof(Audit),
typeof(TypeOfRequest),
typeof(LogisticsProcess),
typeof(CargoCharacteristics),
typeof(CharacteristicsOfTheContainer),
typeof(LogisticsHubs),
typeof(string),
typeof(bool),
},
objects =>
{
Guid id = (Guid)objects[0];
Audit? audit = (Audit)objects[1];
TypeOfRequest typeOfRequest = (TypeOfRequest)objects[2];
LogisticsProcess logisticsProcess = (LogisticsProcess)objects[3];
CargoCharacteristics cargoCharacteristics = (CargoCharacteristics)objects[4];
CharacteristicsOfTheContainer characteristicsOfTheContainer = (CharacteristicsOfTheContainer)objects[5];
LogisticsHubs logisticsHubs = (LogisticsHubs)objects[6];
string note = (string)objects[7];
bool isVisible = (bool)objects[8];
GetTransportationRequestResponse getTransportationRequestResponse = new(
id,
audit,
typeOfRequest,
logisticsProcess,
cargoCharacteristics,
characteristicsOfTheContainer,
logisticsHubs,
note,
isVisible);
return getTransportationRequestResponse;
},
splitOn: $"Id{(request.IdentityUser.IdentityRoles.Contains("Administrator") ? ",CreatedBy," : ",")}TypeOfRequest,CustomsClearance,TypeOfCargo,ContainerType,PortOfShipment,Note,IsVisible");
return transportationRequestResponse.ToList();
}`
IndexOfFirstLetter方法代码:
int IndexOfFirstLetter(string str, string word)
{
var stringCharArray = str.ToCharArray();
var wordCharArray = word.ToCharArray();
int wordLength = wordCharArray.Length;
int wordIndex = 0;
int coincidenceCounter = 0;
int tmpValueForWordIndex = 0;
int counterForWhile = 0;
for (int i = 0; i < stringCharArray.Length; i++)
{
while (counterForWhile < wordLength)
{
if (stringCharArray[i] == wordCharArray[counterForWhile])
{
tmpValueForWordIndex = i;
++coincidenceCounter;
counterForWhile++;
if (coincidenceCounter == wordLength)
{
wordIndex = tmpValueForWordIndex - (wordLength - 1);
}
break;
}
if (stringCharArray[i] != wordCharArray[counterForWhile])
{
coincidenceCounter = 0;
counterForWhile = 0;
break;
}
}
}
return wordIndex;
}
IndexOfLastLetter方法代码:
int IndexOfLastLetter(string str, string word)
{
var stringCharArray = str.ToCharArray();
var wordCharArray = word.ToCharArray();
int wordLength = wordCharArray.Length;
int wordIndex = 0;
int coincidenceCounter = 0;
int tmpValueForWordIndex = 0;
int counterForWhile = 0;
for (int i = 0; i < stringCharArray.Length; i++)
{
while (counterForWhile < wordLength)
{
if (stringCharArray[i] == wordCharArray[counterForWhile])
{
tmpValueForWordIndex = i;
++coincidenceCounter;
counterForWhile++;
if (coincidenceCounter == wordLength)
{
wordIndex = tmpValueForWordIndex;
}
break;
}
if (stringCharArray[i] != wordCharArray[counterForWhile])
{
coincidenceCounter = 0;
counterForWhile = 0;
break;
}
}
}
return wordIndex;
}
如果没有管理员角色，这段代码会删除部分sql行。
if (!request.IdentityUser.IdentityRoles.Contains("Administrator"))
{
var firstIndexOfWord = IndexOfFirstLetter(sqlString, "a.created_by");
var lastIndexOfWord = IndexOfLastLetter(sqlString, "LastModifiedBy,\r\n ");
sqlString = sqlString.Remove(firstIndexOfWord, lastIndexOfWord - firstIndexOfWord);
}
删除sql行后如下所示：
SELECT
a.id AS Id,
a.type_of_request AS TypeOfRequest,
a.customs_clearance AS CustomsClearance,
a.delivery_conditions AS DeliveryConditions,
a.cargo_readiness_period AS CargoReadinessPeriod,
a.deadline_for_submitting_commercial_offer AS DeadlineForSubmittingCommercialOffer,
a.type_of_cargo AS TypeOfCargo,
a.type_of_packaging AS TypeOfPackaging,
a.container_type AS ContainerType,
a.places_in_container AS PlacesInContainer,
a.loading_in_one_container_net AS LoadingInOneContainerNeT,
a.number_of_containers AS NumberOfContainers,
a.weight_of_one_place AS WeightOfOnePlace,
a.loading_per_container_gross_ton AS LoadingPerContainerGrossTon,
a.port_of_shipment AS PortOfShipment,
a.transshipment_port AS TransshipmentPort,
a.place_of_delivery AS PlaceOfDelivery,
a.cargo_pickup_address AS CargoPickupAddress,
a.note AS Note,
a.is_visible AS IsVisible,
a.index AS Index
FROM transportation_request AS a
这个sql查询是正确的： 在此输入图片描述 正如我已经说过的，如果您删除检查管理员角色的逻辑，那么一切都会正常。 然后我得到这样的回应： 在此输入图片描述
请帮助我理解我做错了什么
我查看了有关此问题的许多主题，但没有找到答案。
SplitOn您出现异常的原因是您发布的sql查询中没有列
CreatedBycorrect此外，这与为什么如果您使用
AdministratorCreatedBysplitOn