export class ErrorHandlingService { constructor(private http: HttpClient) {} propagateErrorToServer(error: unknown): void { this.http.post('/api/log-error', { error }).subscribe(); } } 在这个服务中,我们使用了 Angular 的HttpClient模块建立 HTTP 请求,将传入的错误对象发送到一个/api/log-error...
export class ErrorHandlingService { constructor(private http: HttpClient) {} propagateErrorToServer(error: unknown): void { this.http.post('/api/log-error', { error }).subscribe(); } } 在这个服务中,我们使用了 Angular 的HttpClient模块建立 HTTP 请求,将传入的错误对象发送到一个/api/log-error...
export const appConfig: ApplicationConfig={//1. 添加 HttpClient 相关的 providersproviders: [provideHttpClient()], }; HttpClient 是一个Class Provider,我们需要在 appConfig 中提供。 provideHttpClient 源码在provider.ts 两个点: HttpClient 是主角,其它 Service Provider 本篇也会粗略介绍一下 Angular 默认内部...
The HttpClient in @angular/common/http offers a simplified client HTTP API for Angular applications that rests on the XMLHttpRequest interface exposed by browsers. Additional benefits of HttpClient include testability features, typed request and response objects, request and response interception, Observab...
error=>console.log(error) ) } } ng 支持 formData, 关键就是别自己去写 Content-Type header, ng 会帮我们写好的. 拦截 不像ng1 那样,ng 并没有给我们一个拦截的接口, 不过我们可以通过简单的继承+override 来达到目的. refer : http://stackoverflow.com/questions/34934009/handling-401s-globally-with...
not found: Error: Can't resolve 'rxjs/add/observable/ throw‘in 'D:\Angular\httpErrorHandling...
We will create a new service which handles all HttpClient communication operations like requesting the data, post-processing the data, error handling,and retry logic. The advantage of creating such service is we can inject it wherever we want(like any component) in our Angular application. ...
在 Angular 4.3+ 版本之后引入了 HttpClientModule 模块，该模块提供的 HttpClient 服务是已有 Angular ...
Import the HttpClient module in your Angular service or component. Inject HttpClient into your service or component's constructor. Use the get method of HttpClient to specify the URL you want to request. Subscribe to the Observable returned by get to handle the response data. You can proc...
HttpClientModule ] // ... 请求的语法也很简单,具体可以到 github 看代码。 这里说一个小坑,在实现detail路由的时候在ngOnInit钩子里拿到当前路由参数进行请求,改变路由时没有触发请求更新,最后改版如下。 代码如下 ngOnInit () { this.route.params.subscribe((params) => { ...