Question

在我的主控制器中，我有一个返回当前用户的用户服务。

// Curr user
userService.getCurrentUser().then(user => {
    mainCtrl.currUser = user;
});

有没有办法在不注入我的服务的情况下在其他控制器中使用currUser变量并在50个控制器中反复调用此方法？

实施例

// My other awesome controller
console.log(currUser.fullName);

Answer 1

如果您确定不使用提供商/服务，您可以选择 LocalStorage 或$rootScope.

<强>示例：

public async Task<Stream> GetApproveDocumentAsync<T>(Guid id, int revision, PdfLayoutType pdfLayoutType, string resourceFilePath, CadDrawingType cadDrawingType, int approvalWidth, int approvalHeight, Action<T> fillModelAction = null) where T : BaseApproveModel, new() {
    var previewFileName = $"{id}_{revision}_preview.png";
    Stream previewFile;
    using (var resourceFileStream = new FileStream(resourceFilePath, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, true)) {
        previewFile = await _cadApiService.ConvertDrawingToImageAsync(resourceFileStream, cadDrawingType, FileFormat.EVD, FileFormat.PNG, approvalWidth, approvalHeight).ConfigureAwait(false);
    }
    Func<string[], T> createBaseApproveModelFunc = graphicContentFilenames => { //Implicitly captured closure: previewFile
         var model = new T {
             GraphicContentFiles = graphicContentFilenames,
             CadPreview = previewFileName,
             Customer = _userService.GetCurrentOverrideCustomer()?.CustomerName
         };
         fillModelAction?.Invoke(model);
         return model;
    };
    Action<List<StreamWithFileName>> fillGraphicContentAction = currentGraphicContent => { //Implicitly captured closure: fillModelAction, this
        currentGraphicContent.Add(new StreamWithFileName {FileName = previewFileName, Stream = previewFile});
    };
    return await _apagoService.ConstcutPdf(pdfLayoutType, createBaseApproveModelFunc, fillGraphicContentAction).ConfigureAwait(false);
}

然后将其作为，

访问

myApp.controller('DemoController1', ['$scope', '$rootScope', function DemoController($scope,$rootScope) {
     $rootScope.currUser.fullName ="test";
}]);

Answer 2

您可以使用$rootScope，如下所示：

mainCtrl.$rootScope.currUser = user;

和另一个控制器，你可以恢复如下：

console.log(yourContrl.$rootScope.currUser.fullName);

Answer 3

您不希望使用控制器注射吗？使用injector就像注射一样，但也不同：D ...就像在runnable fiddle demo中一样。通过这种方式，您仍然可以使用服务，工厂或组件。

var myApp = angular.module('myApp',[]);

myApp.controller('MyCtrl', function ($scope) {
    $scope.name = angular.injector(['data']).get('user').currUser.username;
});

angular.module('data', []).factory('user', function () {
    return {
      currUser: {
        username: 'Alfred'
      }
    }
});

全局共享变量

3 个答案: