在我的Angular / WebAPI应用程序中，我正在努力通过其ID检索特定记录。 在前端我有一个控制器和一个数据服务。控制器调用数据服务上的方法，数据服务对WebAPI进行$ http调用。 在我的控制器中，我将所需记录的OID传递给数据服务的getServiceRequestById方法。一旦我的问题是，那个OID的实际值是：1而不是1。 我的另一个问题是，当数据服务调用WebAPI时，WebAPI会感知请求，就好像它在其中没有ID，并将该请求传递给其Get（）方法，而不是Get（int Id）。 这是我的前端控制器：
angular.module('frontEndApp').controller('EditServiceRequestCtrl',['$scope', 'requestsRepository','$routeParams',
function ($scope, requestsRepository,$routeParams) {
console.log("This is EditServiceRequestCtrl ; $routeParams: " + $routeParams);
//First we make a call to the data service, to fetch our ServiceRequest by its OID
//Then, in the callback function, we populate the $scope models below with the data of our retreived ServiceRequest
var getCleanId = function () {
return $routeParams.OID.substring(0, 2)
};
var Id = getCleanId();
//var cleanId = id.substring(0, 2);
console.log('getCleanId Id: ' + Id);
requestsRepository.getServiceRequestById(Id, function (request) {
$scope.OID = request.OID;
$scope.RequestorName = request.RequestorName;
$scope.RequestorBusinessUnit = request.RequestorBusinessUnit;
$scope.CustomerName = request.CustomerName;
$scope.CscContactPerson = request.CscContactPerson;
$scope.IsWbsCodeAvailable = request.IsWbsCodeAvailable;
$scope.SalesforceIdNumber = request.SalesforceIdNumber;
$scope.ProjectCtv = request.ProjectCtv;
$scope.RequestedCompletionDate = request.RequestedCompletionDate;
$scope.ToBeUsedForCloudMigration = request.ToBeUsedForCloudMigration;
$scope.ToBeUsedForDatacenterMove = request.ToBeUsedForDatacenterMove;
$scope.ToBeUsedForServerRefresh = request.toBeUsedForServerRefresh;
$scope.DataRequirements = request.DataRequirements;
$scope.DataProtectionRequirements = request.DataProtectionRequirements;
$scope.ProjectedDataAvailability = request.ProjectedDataAvailability;
$scope.DiscoveryLeadName = request.DiscoveryLeadName;
$scope.SelectedCountries = request.SelectedCountries;
$scope.ManualDiscovery = request.ManualDiscovery;
$scope.AutomatedDiscovery = request.AutomatedDiscovery;
$scope.DataLoadUsingMasterTemplate = request.DataLoadUsingMasterTemplate;
$scope.DataLoadUsingAutomatedInterface = request.DataLoadUsingAutomatedInterface;
$scope.DataLoaderRequiresSitizenship = request.DataLoaderRequiresSitizenship;
$scope.countries = [
{
name: "US", checked: false
},
{
name: "UK", checked: false
},
{
name: "France", checked: false
},
{
name: "Germany", checked: false
},
{
name: "Sweden", checked: false
},
{
name: "Danmark", checked: false
}
];
var list = [];
$scope.checkit = function () {
for (var p in $scope.countries) {
if ($scope.countries[p].checked) {
list.push($scope.countries[p].name);
console.log("selected country: " + $scope.countries[p].name + " " + $scope.ProjectedDataAvailability);
}
} return list;
}
console.log('EditServiceRequestCtrl $scope.RequestorName : ' + $scope.RequestorName);
});
$scope.updateServiceRequest = function () {
var ServiceRequest = {
requestorName: $scope.RequestorName,
requestorBusinessUnit: $scope.RequestorBusinessUnit,
customerName: $scope.CustomerName,
cscContactPerson: $scope.CscContactPerson,
isWbsCodeAvailable: $scope.IsWbsCodeAvailable,
salesforceIdNumber: $scope.SalesforceIdNumber,
projectCtv: $scope.ProjectCtv,
requestedCompletionDate: $scope.RequestedCompletionDate,
projectedDataAvailability: $scope.ProjectedDataAvailability,
toBeUsedForCloudMigration: $scope.ToBeUsedForCloudMigration,
toBeUsedForDatacenterMove: $scope.ToBeUsedForDatacenterMove,
toBeUsedForServerRefresh: $scope.ToBeUsedForServerRefresh,
dataRequirements: $scope.DataRequirements,
dataProtectionRequirements: $scope.DataProtectionRequirements,
selectedCountries:
list.filter(function (itm, i, a) {
return i == a.indexOf(itm);
}).toString(),
projectedDataAvailability: $scope.ProjectedDataAvailability,
discoveryLeadName: $scope.DiscoveryLeadName,
manualDiscovery: $scope.ManualDiscovery,
automatedDiscovery: $scope.AutomatedDiscovery,
dataLoadUsingMasterTemplate: $scope.DataLoadUsingMasterTemplate,
dataLoadUsingAutomatedInterface: $scope.DataLoadUsingAutomatedInterface,
dataLoaderRequiresSitizenship: $scope.DataLoaderRequiresSitizenship
};
requestsRepository.updateServiceRequest(ServiceRequest);
}
}]);
这是我的前端数据服务：
frontEndApp.factory('requestsRepository',function ($http) {
var createServiceRequest = function (ServiceRequest) {
$http(
{
url: 'http://localhost:8080/api/ServiceRequests', method: "POST", data: ServiceRequest,
headers: {
'Content-Type': 'application/json'
}
}).success(function (data, status, headers, config) {
console.log("createServiceRequest Status: " + status);
}).error(function (data, status, headers, config) {
console.log("createServiceRequest FAILURE: " + status + " ServiceRequest: " + ServiceRequest);
});
};
var updateServiceRequest = function (ServiceRequest) {
$http(
{
url: 'http://localhost:8080/api/ServiceRequests', method: "PUT", data: ServiceRequest,
headers: {
'Content-Type': 'application/json'
}
}).success(function (data, status, headers, config) {
console.log("updateServiceRequest Status: " + status);
}).error(function (data, status, headers, config) {
console.log("updatetServiceRequest FAILURE: " + status + " ServiceRequest: " + ServiceRequest);
});
};
var getServiceRequests = function (successCallback) {
$http({
method: 'GET', url: 'http://localhost:8080/api/ServiceRequests'
}).success(function (data, status, headers, config) {
successCallback(data);
}).error(function (data, status, headers, config) {
return status;
});
};
var getServiceRequestById = function (Id,successCallback) {
$http({
method: 'GET', url: 'http://localhost:8080/api/ServiceRequests/' + Id
}).success(function (data, status, headers, config) {
console.log("getServiceRequestById, data: " + data);
successCallback(data);
}).error(function (data, status, headers, config) {
return status;
});
};
return {
createServiceRequest: createServiceRequest, getServiceRequests: getServiceRequests,
updateServiceRequest: updateServiceRequest, getServiceRequestById: getServiceRequestById
};
});
这是我的后端WebAPI：
public HttpResponseMessage Get()
{
var requestList = from req in new XPQuery<DummyRequest>(uow) select req;
List<AccountViewServiceRequest> dataList = new List<AccountViewServiceRequest>();
foreach(var item in requestList)
{
AccountViewServiceRequest sr = new AccountViewServiceRequest();
sr.OID = item.Oid;
sr.RequestorName = item.RequestorName;
sr.RequestorBusinessUnit = item.RequestorBusinessUnit;
sr.CustomerName = item.CustomerName;
sr.CscContactPerson = item.CscContactPerson;
sr.IsWbsCodeAvailable = item.IsWbsCodeAvailable;
sr.SalesforceIdNumber = item.SalesforceIdNumber;
sr.ProjectCtv = item.ProjectCtv;
sr.RequestedCompletionDate = item.RequestedCompletionDate;
sr.ToBeUsedForCloudMigration = item.ToBeUsedForCloudMigration;
sr.ToBeUsedForDatacenterMove = item.ToBeUsedForDatacenterMove;
sr.ToBeUsedForServerRefresh = item.ToBeUsedForServerRefresh;
sr.DataRequirements = item.DataRequirements;
sr.SelectedCountries = item.SelectedCountries;
sr.DataProtectionRequirements = item.DataProtectionRequirements;
sr.ProjectedDataAvailability = item.ProjectedDataAvailability;
sr.DiscoveryLeadName = item.DiscoveryLeadName;
sr.ManualDiscovery = item.ManualDiscovery;
sr.AutomatedDiscovery = item.AutomatedDiscovery;
sr.DataLoadUsingMasterTemplate = item.DataLoadUsingMasterTemplate;
sr.DataLoadUsingAutomatedInterface = item.DataLoadUsingAutomatedInterface;
sr.DataLoaderRequiresSitizenship = item.DataLoaderRequiresSitizenship;
dataList.Add(sr);
}
var response = Request.CreateResponse(HttpStatusCode.OK, dataList.ToList());
response.Headers.Add("Access-Control-Allow-Origin", "*");
return response;
}
public HttpResponseMessage Get(int Oid)
{
var item = (from req in new XPQuery<DummyRequest>(uow) where req.Oid == Convert.ToInt32(Oid) select req).First();
AccountViewServiceRequest sr = new AccountViewServiceRequest();
sr.OID = item.Oid;
sr.RequestorName = item.RequestorName;
sr.RequestorBusinessUnit = item.RequestorBusinessUnit;
sr.CustomerName = item.CustomerName;
sr.CscContactPerson = item.CscContactPerson;
sr.IsWbsCodeAvailable = item.IsWbsCodeAvailable;
sr.SalesforceIdNumber = item.SalesforceIdNumber;
sr.ProjectCtv = item.ProjectCtv;
sr.RequestedCompletionDate = item.RequestedCompletionDate;
sr.ToBeUsedForCloudMigration = item.ToBeUsedForCloudMigration;
sr.ToBeUsedForDatacenterMove = item.ToBeUsedForDatacenterMove;
sr.ToBeUsedForServerRefresh = item.ToBeUsedForServerRefresh;
sr.DataRequirements = item.DataRequirements;
sr.SelectedCountries = item.SelectedCountries;
sr.DataProtectionRequirements = item.DataProtectionRequirements;
sr.ProjectedDataAvailability = item.ProjectedDataAvailability;
sr.DiscoveryLeadName = item.DiscoveryLeadName;
sr.ManualDiscovery = item.ManualDiscovery;
sr.AutomatedDiscovery = item.AutomatedDiscovery;
sr.DataLoadUsingMasterTemplate = item.DataLoadUsingMasterTemplate;
sr.DataLoadUsingAutomatedInterface = item.DataLoadUsingAutomatedInterface;
sr.DataLoaderRequiresSitizenship = item.DataLoaderRequiresSitizenship;
var response = Request.CreateResponse(HttpStatusCode.OK, sr);
response.Headers.Add("Access-Control-Allow-Origin", "*");
return response;
}
根据其OID成功检索单个e记录，我应该更正哪个部分？
答案 0 :(得分：1)
由于您的第一个问题似乎与此例程有关：
var getCleanId = function () {
return $routeParams.OID.substring(0, 2)
};
将子串起始位置更改为1以删除前置冒号。
var getCleanId = function () {
return $routeParams.OID.substring(1, 2)
};
反过来应该解决这个问题，而不是从网络API中获取单个记录。 web api试图在Web服务器上的控制器中找到匹配的函数签名。唯一的参数无法转换为整数，因此它使用Get（）而不是Get（int Oid）。