如何在多角度应用程序中保持会话？

Question

我正在使用单页应用程序进行用户身份验证,并且在那里共享会话信息没有问题.

但是我的网站的一部分是静态页面,我只想包含会话信息(登录用户或登录表单).我如何在两个应用程序之间共享会话信息？

Answer 1

我建议创建一个包装localStorage或其他api来存储持久数据的服务.以下是使用localStorage实现的示例.

这个实现是同步的,但如果我使用websqllike甚至服务器db,那么我会重构它以使用promises来返回存储对象.

调节器

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

demo.controller('AppStorageController', [ '$scope', 'appStorage',
    function($scope, appStorage) {
      appStorage('MyAppStorage', 'myAppStorage', $scope);
    } ]);

HTML

<div ng-controller="AppStorageController">
  <p>Local Storage: {{myAppStorage}}</p>
  <p>
    Username: <input type="text" ng-model="myAppStorage.username"></input>
  </p>
  <p>
    Remember me: <input type="checkbox"
      ng-model="myAppStorage.rememberMe"></input>
  </p>
</div>

JS

angular.module('appStorage', []).factory('appStorage',
    [ '$window', function($window) {
      var appStorages = {};
      var api = undefined;

      if ($window.localStorage) {
        api = {
          set : function(name, value) {
            $window.localStorage.setItem(name, JSON.stringify(value));
          },
          get : function(name) {
            var str = $window.localStorage.getItem(name);
            var val = {};
            try {
              val = str ? JSON.parse(str) : {};
            }
            catch (e) {
              console.log('Parse error for localStorage ' + name);
            }
            return val;
          },
          clear : function() {
            $window.localStorage.clear();
          }
        };
      }
      // possibly support other

      if (!api) {
        throw new Error('Could not find suitable storage');
      }

      return function(appName, property, scope) {
        if (appName === undefined) {
          throw new Error('appName is required');
        }

        var appStorage = appStorages[appName];

        var update = function() {
          api.set(appName, appStorage);
        };

        var clear = function() {
          api.clear(appName);
        };

        if (!appStorage) {
          appStorage = api.get(appName);
          appStorages[appName] = appStorage;
          update();
        }

        var bind = function(property, scope) {
          scope[property] = appStorage;
          scope.$watch(property, function() {
            update();
          }, true);
        };

        if (property !== undefined && scope !== undefined) {
          bind(property, scope);
        }

        return {
          get : function(name) {
            return appStorage[name];
          },
          set : function(name, value) {
            appStorage[name] = value;
            update();
          },
          clear : clear
        };
      };
    } ]);