我尝试使用 $http
分配服务对象的属性,但结果令人困惑。为什么这不起作用(这是我的代码):
.service('config', function ($http) {
var config = {
get_host: function () {
if (online == 0) {
return offlineHost;
}
return onlineHost;
},
online: 'false',
host: 'false',
checkConnection: function () {
//this wont work;
/*
$http.get(this.host + http_url ).then(function(response) {
return response.data.ping;
});
*/
//this will work
return 'oke';
},
_load: function () {
this.host = this.get_host();
this.online = this.checkConnection();
this.url_api = this.host + http_url;
if (this.online == 1) {
this.offline_message = 'Maaf aplikasi tidak bisa terkoneksi dengan server atau anda offline';
}
}
};
//run constructor and get value;
config._load();
return config;
}) //end config class
在我的 Controller 中:
var online = config.online;
alert(online) //return undefined, but the $http request on firebug is showed return value
最佳答案
服务:
.service('config', function ($http, $q) {
var config = {
get_host: function () {
if (online == 0) {
return offlineHost;
}
return onlineHost;
},
online: 'false',
host: 'false',
checkConnection: function () {
var deferred = $q.defer();
$http.get(this.host + http_url ).then(function(response) {
$q.resolve(response.data.ping);
});
return $q.promise;
},
_load: function () {
this.host = this.get_host();
this.online = this.checkConnection();
this.url_api = this.host + http_url;
if (this.online == 1) {
this.offline_message = 'Maaf aplikasi tidak bisa terkoneksi dengan server atau anda offline';
}
}
};
//run constructor and get value;
config._load();
return config;
}) //end config class
Controller :
config.online.then(function(data){
alert(data);
var online = data;
handleDate(online); // this is a predefined function to handle your data when it's downloaded
});
关于javascript - 分配服务属性的值(Angularjs),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/25828339/