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angular.js - angularjs 路由中resolve在controller中注入失败

因为发现resolve不仅仅是loaded时触发,在返回时也会触发,但是返回时controller获取到的没有更新。
这个例子里也是将resolve得到的东西放在service里去取的,本来想试着改成注入方式获取看看是不是也一样的情况,如果还是不行的话打算也放在service里或者resolve的数据只在loaded时使用。
所以想找个例子测试一下,但是老是注入失败。

这里是没注入test的 注入即报错
http://jsfiddle.net/abelmakihara/x99b2o2p/3/

高洛峰高洛峰2740 days ago762

reply all(1)I'll reply

  • 高洛峰

    高洛峰2017-05-15 17:04:13

    That’s it. I looked at it carefully. There is something wrong with your understanding of ngRoute. I changed it. Please take a look again: jsFiddle

    The main difference is:

    app.factory('rulesFactory', ['$q', '$timeout',
      function($q, $timeout) {
        return function() {
          return $q(function(resolve){
              $timeout(function() {
                  //这里如果期待返回值,就要用$q封装,并resolve
                  resolve('Change time in seconds:' + new Date().getTime() / 1000);
              }, 1000)
          });
        };
      }
    ]);
    $routeProvider
    .when('/', {
        action: 'index',
        resolve: {
            //这里的resolve真对的是该路由自己的controller
            'test': ['rulesFactory', function(rulesFactory) {
                return rulesFactory();
            }]
        },
        //所以一定要定义一个自己的AController
        controller: 'AController',
        template: '<h3>{{test}}</h3>'
    })
    .when('/page', {
        action: 'page',
        resolve: {
            'test': ['rulesFactory', function(rulesFactory) {
                return rulesFactory();
            }]
        },
        controller: 'BController',
        template: '<h3>{{test}}</h3>'
    })
    //然后,AController,BController就可以注入test了,并且test的值就是上面resolve的那堆字符串
    app.controller('AController', ['$scope', 'test',
    
      function($scope, test) {
        $scope.test = test;
      }
    ]);
    
    app.controller('BController', ['$scope', 'test',
    
      function($scope, test) {
        $scope.test = test;
      }
    ]);

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