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我正在使用Angular2和es5。我想在服務中使用http。 不幸的是我有2個錯誤: - HTTP是不確定的,但ng.http.Http定義, - 我有這個錯誤的主要成分:http與Angular2的服務與es5
vendor-client.min.js:28 EXCEPTION: Can't resolve all parameters for class0: (t, ?)
這裏是我的服務代碼:
;(function(app, ng) {
console.log(new ng.http.Http());
app.ApplicationsService = ng.core.Injectable().Class({
constructor: [ng.http.Http, function(http) {
console.log(http);
this.applicationsEmailUrl = 'api/applications/email';
this.http = http;
}],
emailExists: function(email) {
console.log(email);
var data = { email: email };
return this.http.post(this.applicationsEmailUrl, data)
.toPromise()
.then(function(response) { response.json().data; })
.catch(this.handleError);
}
});
})(window.app || (window.app = {}), window.ng);
這裏的主要成分是:
;(function(app, ng) {
app.AppComponent = ng.core
.Component({
selector: 'register-form',
templateUrl: 'src/register/app.component.html'
})
.Class({
constructor: [ng.core.ElementRef, app.ApplicationsService, function(ref, Applications) {
console.log('app.component.js');
this.programs = JSON.parse(ref.nativeElement.getAttribute('programs'));
this.applications = Applications;
}],
emailExists: function(email) {
console.log('emailExists() triggered');
Applications.emailExists(email);
}
});
})(window.app || (window.app = {}), window.ng);
自舉:
;(function(app, ng) {
document.addEventListener('DOMContentLoaded', function() {
ng.platformBrowserDynamic.bootstrap(app.AppComponent, [
ng.forms.disableDeprecatedForms(),
ng.forms.provideForms(),
ng.http.HTTP_PROVIDERS,
app.ApplicationsService
]);
});
})(window.app || (window.app = {}), window.ng);
如果我嘗試將http注入提供程序數組中的主要組件,它將起作用。但我寧願有一個服務。