AngularJS使用$资源服务。承诺不是由GET请求解决 [英] AngularJS using $resource service. Promise is not resolved by GET request
问题描述
比方说,像这样的服务:
Let's say a service like this:
services.factory('User', function($resource){
return $resource('/rest/usersettings/:username', {}, {
get: {method: 'GET'},
update: {method: 'POST'}
});
});
所以它应该像这样被使用:
So it is supposed to be used like this:
scope.user = User.get( {username: 'bob'} ); // GET
console.log( JSON.stringify(scope.user) ) // {"$promise":{},"$resolved":false}
所以,当我发送GET请求,它会确定,建设这个UR +参数:
So, when I send GET request, it goes OK, building this ur + params:
http://localhost:9000/rest/usersettings/bob
问,为什么我有: {$承诺:{},$决心:虚假}
如果我的GET请求导致JSON响应从服务器返回: {用户名:鲍勃,电子邮件:bob@bobs.com}
那么我期待有我的 scope.user
填补数据。
If my GET request leads to json-response back from the server:{"username":"bob","email":"bob@bobs.com"}
then I'm expecting to have my scope.user
filled by data.
我应该等待某种方式承诺是准备/解决?
Should I wait somehow promise is ready / resolved ?
推荐答案
User.get({用户名:'鲍勃'})
不立即返回您的实际数据。它返回的东西将举行你的数据时,AJAX的回报。在那(在 $承诺
),你可以注册一个附加的回调记录您的数据。
User.get( {username: 'bob'} )
does not return your actual data immediately. It returns something will hold your data when the ajax returns. On that (the $promise
), you can register an additional callback to log your data.
您可以更改code为:
You can change your code to:
scope.user = User.get( {username: 'bob'} ); // GET
scope.user.$promise.then(function(data) {
console.log(data);
});
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