Question

我有简单的功能，可以返回员工数据。但是，如果从函数中检索响应

，则不是函数错误

   function getdata(criteria) {
            return angularService.GetData(criteria, $scope.year, $scope.selectedYearType.name);
        }

在以下功能中调用

$scope.GetEmployeeData = function (criteria) {

        $scope.searchMethod = getdata;
        $scope.searchMethod().then(function (response) {----------> Error here

           var totalEmployeeAmount = 0;

            for (var i = 0; i < response.data.results.length; i++) {
                var summaryData = response.data.results[i];
                totalEmployeeAmount += (summaryData.totalEmployeeAmount);
            }


            return response

        }, function (response) {
            // This is to see if has any error 
            //console.log(response);

        });
    }

我的角色服务

function getData(criteria, year, yearType) {
            var url = apiService.ApiUrl + "/Employees/EmployeeHistory/GetData/" + year + "/" + yearType;
            return apiService.DeferredPost(url, criteria);}

延期发布方法

function deferredPost(url, params) {
            var deferred = $q.defer();

            $http.post(url, params)
                .then(function (data) {
                    deferred.resolve(data);
                }, function (resp) {
                    deferred.reject(resp);
                }).catch(function (data) {
                    deferred.reject(data);
                });

            return deferred.promise;
        }

API

var api = {

            DeferredPost: deferredPost
        };
        return api;

Answer 1

应该在searchMethod上调用.then而不是searchMethod（） - 假设getdata返回一个promise，因为你不能在不返回promise的函数上调用.then。另外我猜你应该把标准作为参数传递给getdata：

$scope.GetEmployeeData = function (criteria) {

        $scope.searchMethod = getdata;
        $scope.searchMethod.then(function (response) {

           var totalEmployeeAmount = 0;

            for (var i = 0; i < response.data.results.length; i++) {
                var summaryData = response.data.results[i];
                totalEmployeeAmount += (summaryData.totalEmployeeAmount);
            }


            return response

        }, function (response) {
            // This is to see if has any error 
            //console.log(response);

        });
    }

Answer 2

正如@William Hampshire所说，你应该使用$scope.searchMethod.then(function ... )代替$scope.searchMethod().then(function ... )

$scope.GetEmployeeData = function (criteria) {

        $scope.searchMethod = getdata(criteria);
        $scope.searchMethod.then(function (response) {

           var totalEmployeeAmount = 0;

            for (var i = 0; i < response.data.results.length; i++) {
                var summaryData = response.data.results[i];
                totalEmployeeAmount += (summaryData.totalEmployeeAmount);
            }


            return response

        }, function (response) {
            // This is to see if has any error 
            //console.log(response);

        });
    }

您的代码仍然失败的原因是您的服务名称中有拼写错误。

   function getdata(criteria) {
            return angularService.GetData(criteria, $scope.year, $scope.selectedYearType.name);
        }

应该是GetData而不是getData。

function GetData(criteria, year, yearType) {
            var url = apiService.ApiUrl + "/Employees/EmployeeHistory/GetData/" + year + "/" + yearType;
            return apiService.DeferredPost(url, criteria);}

然后不是angularjs中的函数错误

2 个答案: