退出页面时重置共享值

Question

从一个页面重定向到另一页面时，我需要共享一些数据。我通过有角度的服务来做到这一点。

var ProductionControl = angular.module('ProductionControl', ['ngRoute', 'ngGrid', 'ngAnimate', 'angularFileUpload', 'ui.bootstrap', 'toaster']);
// configure our routes

ProductionControl.value("Company", { Name: "" });
ProductionControl.value("FromPage", { Name: "" });
ProductionControl.value("loggedUserName", { Name: "" });
ProductionControl.value("Version", { Name: "" });

ProductionControl.constant('RoutingStatus', {
    New: 1,
    Certified: 2,
    UnderDevelopment: 3,
    Initial: 4
});
ProductionControl.service('PmsDataSharingService', function () {
    var sharedData;
    this.setSharedData = function (d) {
        sharedData = d;
    }
    this.getSharedData = function () {
        return sharedData;
    }
});

我这样设置数据 在控制器中：

var objectSent = {
                    BatchNo: $scope.BatchNo,
                    RoutingStageId: $scope.RoutingStageId,
                    LineId: $scope.LineId,
                    PartNumber: $scope.PartNumber
                }
                PmsDataSharingService.setSharedData(objectSent);
                window.location.href = '#EquipmentSetup';

我得到这样的数据 在另一个控制器中

var objectSent = PmsDataSharingService.getSharedData();
        if (!$.isEmptyObject(objectSent)) {
///
/// do something
///

现在，我需要在退出此页面时清除此共享数据。我怎样才能做到这一点？ 我怎么知道用户将要退出页面？有什么办法吗？ 我尝试了这个但是没用

在app.js中

ProductionControl.config(function ($locationProvider, $routeProvider) {

/// routing configs

})
.run(function ($rootScope, $location, Company) {
    // register listener to watch route changes
    $rootScope.$on("$routeChangeStart", function (event, next, current) {


        if (next.templateUrl != "Partials/EquipmentSetup.html") {
            //Redirection to login not required
            var objectSent = {};
            PmsDataSharingService.setSharedData(objectSent);
        }
    });

获取控制台错误：未定义PmsDataSharingService。

编辑：

当我将$ on函数放在使用共享值的控制器中时，它起作用了

$rootScope.$on("$routeChangeStart", function (event, next, current) {


       if (next.templateUrl != "Partials/EquipmentSetup.html") {
           //Redirection to login not required
           var objectSent = {};
           PmsDataSharingService.setSharedData(objectSent);
       }
   });