使用Angular 1.x可以用以下代码拦截所有ajax请求:
$httpProvider.interceptors.push('interceptRequests');
...
var app_services = angular.module('app.services', []);
app_services.factory('interceptRequests', [function () {
var authInterceptorServiceFactory = {};
var _request = function (config) {
//do something here
};
var _responseError = function (rejection) {
//do something here
}
authInterceptorServiceFactory.request = _request;
authInterceptorServiceFactory.responseError = _responseError;
return authInterceptorServiceFactory;
}]);
Angular 2中有类似的东西(或开箱即用)吗?
一种方法可能是扩展HTTP
对象以拦截调用:
@Injectable()
export class CustomHttp extends Http {
request(url: string | Request, options?: RequestOptionsArgs): Observable<Response> {
console.log('request...');
return super.request(url, options).catch(res => {
// do something
});
}
get(url: string, options?: RequestOptionsArgs): Observable<Response> {
console.log('get...');
return super.get(url, options).catch(res => {
// do something
});
}
}
并按照以下说明进行注册:
bootstrap(AppComponent, [HTTP_PROVIDERS,
new Provider(Http, {
useFactory: (backend: XHRBackend, defaultOptions: RequestOptions) => new CustomHttp(backend, defaultOptions),
deps: [XHRBackend, RequestOptions]
})
]);
例如,您可以利用catch
操作员来捕获错误并在全局范围内进行处理...
请参阅以下代码:https ://plnkr.co/edit/ukcJRuZ7QKlV73jiUDd1 ? p = preview 。
本文收集自互联网,转载请注明来源。
如有侵权,请联系[email protected] 删除。
我来说两句