HttpHandler

Transforms an HttpRequest into a stream of HttpEvents, one of which will likely be a HttpResponse.

把一个 HttpRequest 转换成 HttpEvent 组成的流,HttpResponse 就是其中之一。

abstract class HttpHandler { abstract handle(req: HttpRequest<any>): Observable<HttpEvent<any>> }

说明

HttpHandler is injectable. When injected, the handler instance dispatches requests to the first interceptor in the chain, which dispatches to the second, etc, eventually reaching the HttpBackend.

HttpHandler 是可注入的。当被注入时,该处理器的实例会把请求派发给拦截器链中的第一个拦截器,第一个拦截器会再派发给第二个拦截器,以此类推。 最终抵达 HttpBackend

In an HttpInterceptor, the HttpHandler parameter is the next interceptor in the chain.

HttpInterceptor 中,HttpHandler 参数就表示链中的下一个拦截器。

方法

abstract handle(req: HttpRequest<any>): Observable<HttpEvent<any>>

参数

req

Type: HttpRequest.

返回值

Observable<HttpEvent<any>>