创建HttpInterceptor,它可以拦截请求和响应,允许我们统一处理所有HTTP通信中的错误。 @Injectable() export class MyHttpInterceptor implements HttpInterceptor { intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> { return next.handle(req).pipe( catchError((error: HttpErrorRespons...
export class HttpsInterceptor implements HttpInterceptor { intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> { return next.handle(request).pipe( retry(1), catchError((error: HttpErrorResponse) => { if (error.status === 401) { // 跳转到登录页面 } else { ...
Being able to intercept HTTP requests is crucial in a real world application. Whether it is for error handling and logging or for injecting authentication tokens. While in Angular version 2 it intercepting HTTP requests was totally possible, implementing it wasn't that trivial and intuitive. Starti...
Being able to intercept HTTP requests is crucial in a real world application. Whether it is for error handling and logging or for injecting authentication tokens. While in Angular version 2 it intercepting HTTP requests was totally possible, implementing it wasn't that trivial and intuitive. Starti...
}catch(error) {if(errorinstanceofHttpErrorResponse) { const errorResponse=error; console.log('error status', errorResponse.status);//400} } 如果我们希望获取到 Response Status 甚至整个 Response,我们可以这样设置 const response =await firstValueFrom(this.httpClient.get<Product[]>('https://192.168....
HttpResponse, HttpErrorResponse, } from '@angular/common/http'; import { Observable } from 'rxjs/Observable'; import 'rxjs/add/operator/do'; @Injectable() export class RequestInterceptor implements HttpInterceptor { constructor() {} intercept(request: HttpRequest<any>, next: HttpHandler): Observa...
HttpInterceptor提供了一种拦截HTTP请求/响应的方法,就可以在传递它们之前处理。例如,可以在抛出错误之前重试几次HTTP请求。这样,就可以优雅地处理超时,而不必抛出错误。 还可以在抛出错误之前检查错误的状态,使用拦截器,可以检查401状态错误码,将用户重定向到登录页面。
一个很好例子就是处理全局 http 异常。拦截器(Interceptors)应运而生。本文将介绍 AngularJS 的拦截器，...
$httpProvider.responseInterceptors.push(['$q', function($q) { return function(promise) { return promise.then(function(response) { console.log('success in interceptor'); return response; }, function(response) { console.log('error in interceptor'); ...
interceptor. Angular 允许你 customize $http 的error handling。 最后,读者朋友如何跑到我博客首页看一看,你还能看到去年我对 Angular 的吐槽Angular 一个值得当心的bug。是的,我喷的就是 $http ,虽然没有什么卵用。 四:Best Practice 还有一类问题,来自有理想有追求的朋友。他们想知道如何 think in Angular,如何...