Question

任何人都可以帮忙吗？无法更新var ABCKey 。执行setAuthenticatedAccount和console.log返回正确的值。之后，运行getAuthenticatedAccount，并接收undefined。

angular.module('authentication.service', [
])

.factory('Authentication', ['$state', '$cookies', '$http', 'app', 'routes', 'cfCryptoHttpInterceptor',
    function($state, $cookies, $http, app, routes, cfCryptoHttpInterceptor) {

    var ABCKey;

    var setAuthenticatedAccount = function (account, tokenAuth) {
        var accountInfo = {'email': account.email, 'username': account.username, 'token': tokenAuth}
        var abc = CryptoJS.enc.Base64.parse(account.abc);

        Authentication.setABCKey(abc);

        console.log(Authentication.showABCKey())

    }

    var getAuthenticatedAccount = function() {
        if(!$cookies.authenticatedAccount) {
            return;
        }

        console.log(Authentication.showABCKey())

    }


    var setABCKey = function(key) {
        ABCKey = key;
    };

    var showABCKey = function() {
        return ABCKey;
    };

    var Authentication = {
        setAuthenticatedAccount: setAuthenticatedAccount,
        getAuthenticatedAccount: getAuthenticatedAccount,
        setABCKey: setABCKey,
        showABCKey: showABCKey 
    };

    return Authentication;
}]);

Answer 1

在调用函数时删除Authentication，因为它每次都在创建对象。并且在这样的decelaration时设置var ABCKey=null -

angular.module('authentication.service', [
])

.factory('Authentication', ['$state', '$cookies', '$http', 'app', 'routes', 'cfCryptoHttpInterceptor',
    function($state, $cookies, $http, app, routes, cfCryptoHttpInterceptor) {

    var ABCKey=null;

    var setAuthenticatedAccount = function (account, tokenAuth) {
        var accountInfo = {'email': account.email, 'username': account.username, 'token': tokenAuth}
        var abc = CryptoJS.enc.Base64.parse(account.abc);

        setABCKey(abc);

        console.log(showABCKey())

    }

    var getAuthenticatedAccount = function() {
        if(!$cookies.authenticatedAccount) {
            return;
        }

        console.log(showABCKey())

    }


    var setABCKey = function(key) {
        ABCKey = key;
    };

    var showABCKey = function() {
        return ABCKey;
    };

    var Authentication = {
        setAuthenticatedAccount: setAuthenticatedAccount,
        getAuthenticatedAccount: getAuthenticatedAccount,
        setABCKey: setABCKey,
        showABCKey: showABCKey 
    };

    return Authentication;
}]);

Answer 2

不要使用var它的单音类，你需要在这个

中定义ABCkey

var ABCKey;

试试这个

this.ABCKey = '';

无法更新Angularjs Factory中的变量

2 个答案: