我要做出承诺,互相依赖,即:
如果我设置obj1, obj2 and obj3
我想,让他们在同一顺序。
我该如何做到这一点?
Factory:
mainFactory.$inject = ['$http', '$q'];
function mainFactory($http, $q) {
var mainFactory = {
getPromises: getPromises
};
return mainFactory;
function getPromises(id) {
promises = {
'obj1': $http.get('http1'),
'obj2': $http.get('http2'),
'obj3': $http.get('http3'),
'obj4': $http.get('http4', { params: { 'id': id } }),
'obj5': $http.get('http5'),
'obj6': $http.get('http6', { params: { 'id': id } })
};
return $q.all(promises);
}
}
Controller:
MainCtrl.$inject = ['mainFactory'];
function MainCtrl(mainFactory) {
var vm = this;
mainFactory.getPromises(id)
.then(getResponse)
.catch(getError);
function getResponse(response) {
var keys = Object.keys(response), i = keys.length;
while (i--) {
var key = keys[i];
console.log(key); // I want all the keys in order, i.e. => obj1, obj2.. and so on
var value = response[key].data;
switch(key) {
...
}
}
}
function getError(error) {
console.log(error);
}
}
编辑:
我也试过这样:
var promises = {};
return $http.get('/admin/http1.json').then(function (value) {
promises['obj1'] = value;
})
.then(function (result) {
return $http.get('/admin/http2.json').then(function (value) {
promises['obj2'] = value;
});
}).then(function (result) {
return $http.get('/admin/http3.json').then(function (value) {
promises['obj3'] = value;
});
});
return $q.all(promises);
我不擅长承诺,对不起,但另一种方法是使用http://caolan.github.io/async/docs.html#.eachOfSeries – Plato
对象键天生*无序*。改用数组。 –
看看$ q.serial()上的这篇文章。我认为这将是你正在寻找的。 http://www.codeducky.org/q-serial/ – mhodges